KR20020011775A - A water level control method of washing machine - Google Patents

A water level control method of washing machine Download PDF

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Publication number
KR20020011775A
KR20020011775A KR1020000045299A KR20000045299A KR20020011775A KR 20020011775 A KR20020011775 A KR 20020011775A KR 1020000045299 A KR1020000045299 A KR 1020000045299A KR 20000045299 A KR20000045299 A KR 20000045299A KR 20020011775 A KR20020011775 A KR 20020011775A
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South Korea
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washing
water
water level
motor
washing water
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KR1020000045299A
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Korean (ko)
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김재방
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전주범
대우전자주식회사
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Priority to KR1020000045299A priority Critical patent/KR20020011775A/en
Publication of KR20020011775A publication Critical patent/KR20020011775A/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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/087—Water level measuring or regulating devices
    • 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
    • D06F34/06—Timing 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
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/22—Condition of the washing liquid, e.g. turbidity
    • 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
    • D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
    • 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
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/04—Quantity, e.g. weight or variation of 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
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/02—Water supply

Abstract

PURPOSE: A method for deciding water level in a washer is provided to prevent waste of washing water according to supply of the washing water and to reduce overload of a motor according to the washing water by mixing the washing water. CONSTITUTION: A method for deciding water level of a washer comprises a first step(10) rotating a motor by inertia by blocking power applied into the motor while rotating a washing tub; a second step(20) supplying washing water into a washing tub according to detected load by rotation of the motor; a third step(30) pre-washing laundry by supplying the washing water; a forth step(40) sensing water level after pre-washing step; and a fifth step(50) supplying the washing water according to the water level. Thereby, the method for deciding the water level of the washer prevents waste of the washing water caused by excessively supplying the washing water. Moreover, the method for deciding the water level of the washer reduces overload of the motor according to the washing water.

Description

세탁기의 수위 결정방법{A WATER LEVEL CONTROL METHOD OF WASHING MACHINE}Water level determination method of washing machine {A WATER LEVEL CONTROL METHOD OF WASHING MACHINE}

본 발명은 세탁기의 수위 결정방법에 관한 것으로, 상세하게는 세탁부하에 따른 모터의 관성회전에 의해 세탁기의 예비수위를 결정하고, 다시 세탁물이 물을 흡수하는 양을 판단하여 세탁물에 따른 정확한 수위의 결정이 가능한 세탁기의 수위 결정방법에 관한 것이다.The present invention relates to a method for determining the water level of a washing machine, and more particularly, to determine the preliminary water level of the washing machine by inertia rotation of the motor according to the load of the washing machine, and then to determine the amount of washing water absorbed by the laundry. The present invention relates to a method for determining the water level of a washing machine that can be determined.

일반적으로 세탁기에 의한 세탁과정에서 세탁에 필요한 세탁수가 세탁물에 비해 과다할 경우에는 세제의 소모량이 증가하는 것과 함께 세탁수의 낭비가 따르게 된다.In general, when the number of laundry required for washing in the washing process by the washing machine is excessive compared to the laundry, the consumption of detergent is increased and the washing water is wasted.

또한, 이와 반대로 세탁물에 비해 세탁수가 부족할 경우에는 세탁조를 회전시키는 모터에 무리가 따르는 동시에 세탁수의 혼탁도가 증가하므로 세탁효율이 저하된다.On the contrary, when the washing water is insufficient in comparison with the laundry, the turbidity of the washing water increases at the same time as the motor for rotating the washing tank increases, thereby reducing the washing efficiency.

따라서, 통상적인 구조를 갖는 세탁기에서는 세탁행정에 앞서 세탁물량에 비례한 세탁수를 공급함으로써 세탁수의 과다한 소모를 방지하고, 세탁이 효율적으로 이루어지도록 한다.Therefore, the washing machine having the conventional structure prevents excessive consumption of the washing water by supplying the washing water in proportion to the amount of laundry prior to the washing operation, so that washing is efficiently performed.

도 1은 종래의 세탁기에서 세탁물에 비례한 수위 결정방법을 도시한 블럭도로서, 이와 같은 세탁기는 세탁조 내에 세탁물을 투입시킨 상태에서 세탁기를 동작시키면 세탁물량의 감지를 위해 세탁기의 모터가 세탁조를 좌우로 회전시킨 상태에서 전원을 차단시킴으로써 모터의 관성회전수나 주파수 등을 검출하여 부하량, 즉 세탁물량을 감지한다.1 is a block diagram illustrating a method for determining a water level proportional to laundry in a conventional washing machine. When the washing machine operates the washing machine in a state in which laundry is put in the washing tank, the motor of the washing machine is left and right to detect the amount of laundry. By turning off the power in the state of rotation, the inertia speed and frequency of the motor are detected to detect the load, that is, the amount of laundry.

상기한 과정에 따라 부하량이 검출되면 마이컴에 입력된 데이터에 따른 급수가 이루어지도록 하며, 세탁수의 공급과정에서 수위를 검출한 결과 목표수량에 도달하면 세타기를 동작시켜 정상적인 세탁이 진행되도록 한다.When the load is detected according to the above process, water is supplied according to the data input to the microcomputer. When the water level is detected in the supply process of the washing water, when the target water is reached, theta is operated to allow normal washing to proceed.

그런데 이와 같이 세탁기의 모터를 회전시킨 상태에서 관성회전수나 주파수 등을 검출하여 세탁물량을 검출할 경우에는 동일한 중량의 세탁물이 투입될 경우에도 세탁물의 종류나 투입된 위치 등에 따라 각기 다른 세탁물량이 감지되므로 정확한 수위의 결정이 곤란하다는 등의 문제점이 발생한다.However, if the amount of laundry is detected by detecting the inertia rotation speed or frequency while the motor of the washing machine is rotated as described above, even if the laundry of the same weight is inputted, different amounts of laundry are detected depending on the type of laundry or the location of the laundry. The problem arises that it is difficult to determine the correct water level.

따라서, 종래의 수위 결정방법에 의해 수위를 결정하는 세탁기는 세탁과정에서 과다한 세탁수가 사용되거나, 세탁수의 과부족에 따라 세탁효율이 저하되는 등의 문제점이 따른다.Therefore, the washing machine for determining the water level by the conventional water level determination method has a problem such that excessive washing water is used in the washing process or washing efficiency is deteriorated due to lack of washing water.

본 발명은 상기한 바와 같은 종래의 문제점을 해결하기 위해 안출한 것으로 본 발명의 목적은, 세탁부하에 따른 모터의 관성회전에 의해 세탁기의 예비수위를 결정하고, 다시 세탁물이 물을 흡수하는 양을 판단하여 세탁물에 따른 정확한 수위의 결정이 가능한 세탁기의 수위 결정방법을 제공하는 것이다.The present invention has been made to solve the conventional problems as described above, an object of the present invention is to determine the preliminary level of the washing machine by the inertia rotation of the motor according to the washing load, and again the amount of the laundry absorbs water It is to provide a method for determining the level of the washing machine that can determine the exact level according to the laundry by judging.

상기한 바와 같은 본 발명의 목적은, 세탁물이 투입된 세탁조를 회전시킨 다음, 모터에 인가되는 전원을 차단시켜 관성에 의해 모터를 회전시키는 모터 회전단계;An object of the present invention as described above, the rotation step of rotating the laundry in which the laundry is put, the motor rotation step of rotating the motor by inertia by cutting off the power applied to the motor;

상기 모터 회전단계에 의해 검출된 부하량에 따라 세탁조의 내부에 세탁수를 공급시키는 세탁수 공급단계;A washing water supplying step of supplying washing water into the washing tank according to the load detected by the motor rotating step;

상기 세탁수 공급단계에 따라 세탁수의 공급이 완료되면 세탁기를 2분간 동작시켜 세탁을 진행하는 예비 세탁단계;A pre-washing step of performing washing by operating the washing machine for 2 minutes when the supply of the washing water is completed according to the washing water supplying step;

상기 예비 세탁단계직후 수위의 변화 검출하는 수위 검출단계;A water level detecting step of detecting a change in the water level immediately after the preliminary washing step;

상기 수위 검출단계에 의해 세탁조에 세탁수를 추가공급하는 급수단계로 이루어진 것을 특징으로 하는 세탁기의 수위 결정방법을 제공함으로써 달성된다.The water level detection step is achieved by providing a water level determination method of the washing machine, characterized in that consisting of a water supply step of supplying additional washing water to the washing tank.

이하, 본 발명에 의한 세탁기의 수위 결정방법을 첨부한 도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, the water level determination method of the washing machine according to the present invention will be described in detail.

도 1은 종래의 세탁기의 수위 결정방법을 도시한 블럭 다이어그램,1 is a block diagram showing a water level determination method of a conventional washing machine;

도 2는 본 발명에 의한 수위 결정방법을 도시한 블럭도,2 is a block diagram showing a water level determination method according to the present invention;

도 3은 본 발명에 의한 수위 결정방법의 블럭 다이어그램이다.3 is a block diagram of a water level determination method according to the present invention.

〈도면의 주요 부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

10 : 모터 회전단계 20 : 세탁수 공급단계10: motor rotation step 20: washing water supply step

30 : 예비 세탁단계 40 : 수위 검출단계30: prewash step 40: level detection step

50 : 급수단계50: water supply stage

도 2는 본 발명에 의한 수위 결정방법을 도시한 블럭도로서, 본 발명은 모터 회전단계(10), 세탁수 공급단계(20), 예비 세탁단계(30), 수위 검출단계(40) 및 급수단계(50)로 이루어진다.Figure 2 is a block diagram showing a water level determination method according to the present invention, the present invention is a motor rotation step 10, washing water supply step 20, pre-washing step 30, water level detection step 40 and water supply Step 50 is made.

여기서 모터 회전단계(10)는 세탁물이 투입된 세탁조를 회전시킨 다음, 모터에 인가되는 전원을 차단시켜 관성에 의한 모터의 회전정도를 검출함으로써 건조된 상태에서의 세탁물량을 감지한다.Here, the motor rotation step 10 detects the amount of laundry in the dried state by rotating the washing tank into which the laundry is put, and then cutting off the power applied to the motor to detect the rotational degree of the motor by inertia.

그리고 상기한 과정의 완료후에는 세탁수 공급단계(20)에서 모터 회전단계(10)에 의해 검출된 부하량에 따라 세탁물량이 많을 경우에는 다량의 세탁수를 공급하고, 세탁량이 적을 경우에는 소량의 세탁수를 세탁조 내부에 공급시킨다.After completion of the above process, if the amount of laundry is large according to the load amount detected by the motor rotation step 10 in the washing water supplying step 20, a large amount of washing water is supplied, and when the washing amount is small, The wash water is supplied into the washing tank.

계속해서 상기한 과정에 따라 세탁수의 공급이 완료되면 세탁기를 2분간 동작시키는 예비 세탁단계(30)가 진행되며, 이와 같은 예비 세탁단계(30)를 거친 세탁물은 세탁조의 세탁수에 충분히 침지된 상태에서 세탁이 이루어지며, 수위 검출단계(40)에서는 예비 세탁단계(30)직후 수위의 변화를 검출한다.Subsequently, when the supply of the washing water is completed according to the above process, a preliminary washing step 30 for operating the washing machine for 2 minutes is performed, and the laundry that has undergone the preliminary washing step 30 is sufficiently immersed in the washing water of the washing tank. Washing is made in the state, the water level detection step 40 detects a change in the water level immediately after the pre-washing step (30).

또한, 상기한 수위 검출단계(40)에 의해 세탁조의 수위를 검출한 결과 세탁물의 흡수에 의해 세탁수가 적정량보다 부족할 경우에는 세탁조에 세탁수를 추가공급함으로써 세탁수의 부족에 따른 모터의 과부하와 세탁수의 혼탁에 따른 세탁효율의 저하를 방지한다.In addition, when the water level of the washing tank is detected by the above-described water level detecting step 40, if the washing water is insufficient by the absorption of the washing water, the washing water is additionally supplied to the washing tank, thereby overloading the motor and washing due to the lack of washing water. Prevents deterioration of washing efficiency due to turbidity of water.

상기한 바와 같이 구성된 본 발명의 작용 및 효과를 이하에서 설명한다.The operation and effects of the present invention configured as described above will be described below.

본 발명에 의한 세탁기의 수위 결정방법은 세탁량에 따라 적절한 수위를 유지시켜 세탁수의 불필요한 낭비를 방지하는 한편, 세탁수의 과부족에 따른 세탁효율저하를 방지한다.The water level determination method of the washing machine according to the present invention maintains an appropriate water level according to the amount of washing to prevent unnecessary waste of the washing water, and prevents the washing efficiency decrease due to the lack of washing water.

여기서 상기한 바와 같은 본 발명에 의해 세탁이 진행되는 과정을 도 3을 참조하여 살펴보면, 먼저 통상적인 세탁요령과 같이 세탁기에 투입시킨다.Looking at the process of the washing proceeds by the present invention as described above with reference to Figure 3, first put in the washing machine as usual washing instructions.

상기한 세탁물이 투입되면 마이컴은 모터에 전원을 인가하여 세탁조를 회전시킨 다음, 모터에 인가되는 전원을 차단하여 관성에 의한 모터의 회전정도를 판단하는 한편, 이에 따라 부하량, 즉 세탁물량을 판단한다.When the laundry is put in, the microcomputer applies power to the motor to rotate the washing tank, and then cuts off the power applied to the motor to determine the degree of rotation of the motor by inertia, and accordingly, determines the load amount, that is, the amount of laundry. .

또한, 이와 같은 과정에 완료되면 마이컴의 제어에 따라 세탁물량에 비례한 세탁수가 공급됨으로써 세탁조가 일정한 수위를 유지하며, 이와 같은 과정이 완료되면 예비 세탁단계(30)에서 세탁기를 2분간 동작시킨다.In addition, the washing tank maintains a constant level by supplying the washing water in proportion to the amount of laundry under the control of the microcomputer when the process is completed, and when the process is completed, the washing machine is operated for 2 minutes in the preliminary washing step 30.

상기한 바와 같이 예비 세탁단계(30)가 진행되면 세탁물은 세탁조의 세탁수에 충분히 침지된 상태로 세탁이 이루어지며, 이와 같은 과정에서 세탁물에 다량의 세탁수가 흡수될 경우에는 세탁수의 수위가 변동되므로 수위 검출단계(40)에서는 예비 세탁단계(30)직후 수위의 변화를 검출한다.As described above, when the preliminary washing step 30 is performed, the laundry is washed in a state sufficiently immersed in the washing water of the washing tank. When a large amount of washing water is absorbed in the laundry, the water level of the washing water is changed. Therefore, the water level detection step 40 detects a change in the water level immediately after the pre-washing step 30.

계속해서 상기한 수위 검출단계(40)에 의해 세탁조의 수위를 검출한 결과 세탁수가 적정수위를 유지한 것으로 판단될 경우에는 정상적으로 세탁을 진행하게 되며, 이와 반대로 세탁물의 흡수에 따라 세탁수가 적정량보다 부족할 경우에는 세탁조에 과부족분의 세탁수를 추가공급한다.Subsequently, when the water level of the washing tank is detected by the above-described water level detecting step 40, when the washing water is determined to maintain the proper water level, washing is normally performed. In this case, the excess water is supplied to the washing tank.

상기한 과정에 따라 세탁조의 세탁수가 적절한 수위가 유지되면, 정상적인 세탁시와 같이 세탁 및 헹굼과 탈수과정을 거쳐 세탁을 완료하게 되는데, 이와 같은 본 발명은 세탁수의 부족에 따른 모터의 과부하와 세탁수의 혼탁에 따른 세탁효율의 저하를 방지할 수 있다.When the wash water in the washing tank according to the above-described process is maintained, the washing and rinsing and dehydration process is completed as in the normal washing process, the present invention is the overload of the motor and washing due to the lack of wash water It is possible to prevent a decrease in washing efficiency due to turbidity of water.

이상에서 설명한 바와 같이 본 발명에 의한 세탁기의 수위 결정방법은, 세탁부하에 따른 모터의 관성회전에 의해 세탁기의 예비수위를 결정하고, 다시 세탁물이 물을 흡수하는 양을 판단하여 세탁물에 따른 정확한 수위의 결정이 가능하므로 과도한 세탁수의 공급에 따른 세탁수의 불필요한 낭비를 막을 수 있으며, 이와 동시에 세탁수의 과부족에 따른 모터의 과부하와 세탁수의 혼탁에 따른 세탁효율의 저하를 방지하는 등의 많은 효과를 얻을 수 있다.As described above, the water level determination method of the washing machine according to the present invention determines the preliminary water level of the washing machine by the inertia rotation of the motor according to the washing load, and again determines the amount of water absorbed by the laundry to determine the correct water level according to the laundry. It is possible to prevent the unnecessary waste of the washing water due to the excessive supply of the washing water, and at the same time to prevent the overload of the motor due to the lack of washing water and the deterioration of washing efficiency due to the turbidity of the washing water. The effect can be obtained.

이상에서는 본 발명을 특정의 바람직한 실시예에 대하여 도시하고 설명하였으나 본 발명은 상기한 실시예에 한정되지 아니하며, 특허청구범위에서 주장하는 본안의 요지를 벗어남이 없이 당해 발명이 속하는 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형이 가능할 것이다.The present invention has been illustrated and described with respect to specific preferred embodiments, but the present invention is not limited to the above-described embodiments, and the present invention is not limited to the above-mentioned claims without departing from the gist of the present invention claimed in the claims. Anyone with a variety of variations will be possible.

Claims (1)

세탁물이 투입된 세탁조를 회전시킨 다음, 모터에 인가되는 전원을 차단시켜 관성에 의해 모터를 회전시키는 모터 회전단계(10);Rotating the washing tank into which the laundry is put, and then the motor rotation step of rotating the motor by inertia by cutting off the power applied to the motor (10); 상기 모터 회전단계에 의해 검출된 부하량에 따라 세탁조의 내부에 세탁수를 공급시키는 세탁수 공급단계(20);Washing water supply step 20 for supplying the washing water in the washing tank in accordance with the load amount detected by the motor rotation step; 상기 세탁수 공급단계에 따라 세탁수의 공급이 완료되면 세탁기를 2분간 동작시켜 세탁을 진행하는 예비 세탁단계(30);A pre-washing step 30 of performing washing by operating the washing machine for 2 minutes when the supply of the washing water is completed according to the washing water supplying step; 상기 예비 세탁단계직후 수위의 변화 검출하는 수위 검출단계(40);A water level detection step 40 of detecting a change in the water level immediately after the preliminary washing step; 상기 수위 검출단계에 의해 세탁조에 세탁수를 추가공급하는 급수단계(50)로 이루어진 것을 특징으로 하는 세탁기의 수위 결정방법.The water level determination method of the washing machine, characterized in that consisting of a water supply step (50) for supplying additional washing water to the washing tank by the water level detection step.
KR1020000045299A 2000-08-04 2000-08-04 A water level control method of washing machine KR20020011775A (en)

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