KR0149974B1 - The filter detecting method of a washing machine - Google Patents

The filter detecting method of a washing machine Download PDF

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Publication number
KR0149974B1
KR0149974B1 KR1019950014018A KR19950014018A KR0149974B1 KR 0149974 B1 KR0149974 B1 KR 0149974B1 KR 1019950014018 A KR1019950014018 A KR 1019950014018A KR 19950014018 A KR19950014018 A KR 19950014018A KR 0149974 B1 KR0149974 B1 KR 0149974B1
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KR
South Korea
Prior art keywords
drainage
washing
drain
time
filter
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KR1019950014018A
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Korean (ko)
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KR960041508A (en
Inventor
송복남
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배순훈
대우전자주식회사
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Priority to KR1019950014018A priority Critical patent/KR0149974B1/en
Publication of KR960041508A publication Critical patent/KR960041508A/en
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Publication of KR0149974B1 publication Critical patent/KR0149974B1/en

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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08Liquid supply or discharge arrangements
    • D06F39/081Safety arrangements for preventing water damage
    • D06F39/082Safety arrangements for preventing water damage detecting faulty draining operations, e.g. filter blockage, faulty pump
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00Control of operations performed in washing machines or washer-dryers 
    • D06F33/30Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/42Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of draining
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00Control of operations performed in washing machines or washer-dryers 
    • D06F33/50Control of washer-dryers characterised by the purpose or target of the control
    • D06F33/52Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/62Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of draining
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18Status alarms
    • G08B21/182Level alarms, e.g. alarms responsive to variables exceeding a threshold
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/08Draining of washing liquids
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/58Indications or alarms to the control system or to the user

Abstract

본 발명은 일련의 세탁행정중에 세탁수의 이물질을 걸러 주면서 배수를 하는 배수구 필터 막힘상태를 간단용이하게 감지할 수 있도록 한 세탁기의 배수구 필터 막힘 감지방법에 관한 것으로, 본 발명은 일련의 세탁행정에서 세탁수위에 따라 소정수위까지 배수하는데 걸리는 배수기준시간을 설정하여 놓은 상태에서, 배수시 상기 배수기준시간을 기준하여 소정수위까지 배수하는데 걸리는 배수시간과를 비교하여 배수시간이 배수기준시간보다 길어졌을 경우, 이를 카운트한후 이 카운트한 횟수가 한 번 세탁시 소정의 횟수 이상이면 필터막힘을 경보표시하도록 이루어짐을 특징으로 한다.The present invention relates to a drain filter clogging detection method of a washing machine that can easily detect the clogging of the drain filter to drain while filtering foreign substances in the washing water during a series of washing administration, the present invention provides a series of washing stroke The drainage time is longer than the drainage reference time compared to the drainage time for draining to the predetermined water level based on the drainage reference time when draining, with the drainage reference time taken to drain to the predetermined water level according to the washing water level. In this case, after counting this, if the count is more than a predetermined number of times of washing once, the filter clogging is characterized in that the alarm is made.

Description

세탁기의 배수구 필터 막힘감지방법Drain filter clogging detection method of the washing machine

제1도는 본 발명에 이용되는 세탁기의 개략적인 제어블럭도.1 is a schematic control block diagram of a washing machine used in the present invention.

제2도는 본 발명에 배수구 필터 막힘감지방법에 대한 플로우챠트.2 is a flow chart of the drain filter clogging detection method in the present invention.

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

a : 운전신호입력부 b : 마이콤a: operation signal input part b: micom

c : 급수구동부 d : 수위감지부c: Water supply drive part d: Water level detection part

e : 모터구동부 f : 배수펌프구동부e: motor driving part f: drainage pump driving part

g : 경보표시부 h : 메모리부g: Alarm display part h: Memory part

본 발명은 세탁기의 배수구 필터 막힘 감지방법에 관한 것으로, 특히 일련의 세탁행정중에 세탁수의 이물질을 걸러 주면서 배수를 하는 배수구 필터 막힘상태를 간단용이하게 감지할 수 있도록 한 세탁기의 배수구 필터 막힘 감지방법에 관한 것이다.The present invention relates to a method for detecting a drain filter clogging of a washing machine, and more particularly, a method for detecting a clogging of a drain filter of a washing machine to easily detect a clogging of a drain filter for draining while filtering foreign substances in the washing water during a series of washing operations. It is about.

일반적으로 세탁기에서 배수펌프로 펌핑하여 세탁수를 배수할 때, 배수구에는 세탁수에 포함된 이물질을 걸러주는 필터가 구비되어 배수되는 세탁수의 이물질을 걸러주면서 배수펌프를 통해서 배수하도록 되어 있다.In general, when draining the wash water by pumping the drainage pump in the washing machine, the drain is provided with a filter for filtering the foreign matter contained in the wash water to filter the foreign matter of the wash water to be drained through the drain pump.

그러나 상기와 같이 필터를 통해서 세탁수의 이물질을 걸러 주면서 배수를 할 때 상기 필터에는 세탁횟수가 증가함에 따라 필터에는 이물질이 점점 쌓이게 되어 어느 세탁횟수에 도달하게 되면 필터가 막히게 되어 배수를 할수 없는 상황이 발생되어 사용자는 상기 필터의 막힘을 방지하기 위하여 수시로 필터의 막힘상태를 점검할 필요성을 갖게 된다.However, when the water is drained while filtering foreign matters through the filter as described above, as the number of washings increases in the filter, foreign matters accumulate gradually in the filter, and when a certain number of washings is reached, the filter becomes clogged and cannot drain. This occurs and the user has a need to check the blocked state of the filter from time to time in order to prevent clogging of the filter.

그럼에도 불구하고 종래에는 상기 필터의 막힘상태를 감지할수 있는 별도의 장치가 마련되어 있지않아 사용자는 간혹 부주의나 점검소홀로 인하여 필터의 막힘상태를 알지 못한채 세탁을 하게 되고, 이로 인하여 세탁을 망치게 되거나 혹은 세탁을 할 수 없는 상태가 발생되어서야 비로서 배수구를 분해하여 필터의 막힘상태를 육안으로 점검한후 청소를 하는 번거로운 문제점을 가지게 되었다.Nevertheless, in the prior art, there is no separate device for detecting the blocked state of the filter, so the user sometimes washes without knowing the blocked state of the filter due to carelessness or neglect of the inspection, thereby ruining the laundry or washing the laundry. Only when a condition that can not be generated, the drain has been troublesome to disassemble the drain and check the clogged state of the filter visually and then clean it.

따라서 본 발명의 목적은 세탁운전중에 배수펌프로 배수시 배수되는 수위의 변화로 배수구 필터의 막힘상태를 간단 용이하게 감지할수 있는 배수구 필터 막힘감지방법을 제공하고자 하는 데 있다.Therefore, an object of the present invention is to provide a drain filter clogging detection method that can easily detect the clogging state of the drain filter by the change of the water level when drained by the drain pump during the laundry operation.

상기의 목적을 실현하기 위하여 본 발명은 일련의 세탁행정에서 세탁수위에 따라 소정수위까지 배수하는데 걸리는 배수기준시간을 설정하여 놓은 상태에서, 배수시 상기 배수기준시간을 기준하여 소정수위까지 배수하는데 걸리는 배수시간과를 비교하여 배수시간이 배수기준시간보다 길어졌을 경우, 이를 카운트한후 이 카운트한 횟수가 한 번 세탁시 소정의 횟수 이상이면 필터막힘을 경보표시하도록 이루어짐을 특징으로 한다.In order to realize the above object, the present invention is to drain to a predetermined water level based on the drainage reference time when draining in a state of setting the drainage reference time for draining to a predetermined level according to the washing water level in a series of washing administration When the drainage time is longer than the drainage reference time in comparison with the drainage time, it is characterized in that the filter clogging is made to display an alarm if the counted count is more than a predetermined number of times once washing.

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 발명에 적용되는 세탁기의 제어블럭도로서, 일련의 세탁행정에 대항 세탁운전신호를 입력하는 운전신호입력부(가)와, 상기 운전신호입력부(가)에서 입력된 운전신호를 기설정된 소정의 프로그램에 의하여 제어하고 제어된 신호를 출력하여 각 구동부를 제어하는 마이콤(나)과, 상기 마이콤(나)으로 부터 제어신호를 받아 세탁조에 급수를 하는 급수구동부(다)와, 상기 급수구동부(다)에서 급수되는 세탁수의 배수되는 세탁수의 수위를 감지하는 수위감지부(다)와, 상기 수위감지부(러)에서 감지된 수위가 설정된 수위에 도달하면 상기 마이콤(나)의 제어신호에 의하여 세탁 또는 헹굼하거나 헹굼이 완료되면 탈수를 하는 모터구동부(마)와, 상기 모터구동부(마)에서 세탁 및 헹굼이 완료되면 상기 마이콤(나)의 제어신호에 의하여 펌핑 구동하면서 배수를 하는 배수펌프구동부(바)와, 상기 마이콤(나)의 제어신호에 의하여 카운트된 횟수를 일시 저장하는 메모리부(사)와, 상기 마이콤(나)의 제어신호에 의하여 배수펌프의 막힘을 경보 및 표시하는 경보표시부(아)로 구성하여서 된 것이다.1 is a control block diagram of a washing machine applied to the present invention, the driving signal input unit (A) for inputting the washing operation signal against a series of washing operations and the operation signal input from the driving signal input unit (A) A microcomputer (b) for controlling each drive unit by outputting a signal controlled and controlled by a predetermined program, a water supply driver (c) for receiving a control signal from the microcomputer (b) and supplying water to a washing tank; The water level detecting unit (C) for detecting the water level of the wash water drained from the water supplied in (C) and the control of the microcomputer (B) when the water level detected by the water level detecting unit (R) reaches a set level. When the washing or rinsing or the rinsing is completed according to the signal, the motor driving unit (e) dewatering and the motor driving unit (e) when the washing and rinsing are completed. The drain pump driver (bar) for draining the water, the memory unit (4) for temporarily storing the number of times counted by the control signal of the microcomputer (B), and the clogging of the drain pump due to the control signal of the microcomputer (B) It consists of an alarm display part (H) which alerts and displays.

제2도는 본 발명 배수구 필터 막힘 감지방법에 대한 플로우챠트로서, 세탁수위에 따라 소정수위까지 배수하는데 걸리는 배수시간을 배수기준시간으로 설정하는 배수기준시간설정단계(20)와, 배수기준시간설정단계(20)에서 배수기준시간이 설정된 상태에서 세탁 또는 헹굼운전을 하게되는 세탁 및 헹굼운전단계(21)와, 상기 세탁 및 헹굼운전단계(21)에서 배수운전상태인가를 판단하는 배수운전판단단계(22)와, 상기 배수운전판단단계(22)에서 배수운전이면 배수펌프를 운전하여 배수를 하는 배수단계(23)와, 상기 배수단계(23)에서 배수되는 수위가 소정의 배수수위에 도달하였는가를 판단하는 배수수위판단단계(24)와, 상기 배수수위판단단계(24)에서 소정의 배수수위에 도달하였으면 소정의 수위까지 배수하는데 걸리는 시간을 감지하는 배수시간감지단계(25)와, 상기 배수시간감지단계(25)에서 감지된 배수시간이 상기 기설정된 배수기준시간보다 긴가를 비교판단하는 배수시간판단단계(26)와, 상기 배수시간판단단계(26)에서 판단결과 감지된 배수시간이 배수기준시간보다 길지않게 되면, 정상 배수를 진행하고, 배수시간이 배수기준시간보다 길게 되면 필터에 이물질이 낀 것으로 판단하여 카운트를 한후, 저장하는 막힘횟수저장단계(27)와, 상기 막힘횟수저장단계(27)에서 저장된 횟수가 기설정된 소정의 횟수이상인가를 판단하는 막힘횟수판단단계(28)와, 상기 막힘횟수판단단계(28)에서 판단결과 막힘횟수가 소정의 횟수이상이 아니면 배수가 완료되었는가를 판단하면서 배수가 완료될 때 까지 배수하는 배수완료판단단계(29)와, 상기 막힘횟수판단단계(28)에서 판단결과 막힘횟수가 소정의 횟수이상이면 배수를 중지하고 필터막힘을 경보 및 표시하는 막힘경보 및 표시단계(30)로 이루이지도록 한 것이다.2 is a flow chart for the method for detecting the drainage filter clogging according to the present invention, the drainage reference time setting step 20 of setting a drainage time required to drain to a predetermined level according to the washing water level as a drainage reference time, and a drainage reference time setting step Washing and rinsing operation step 21 to perform the washing or rinsing operation in a state in which the drainage reference time is set at 20, and the drainage operation determining step of determining whether the draining operation state in the washing and rinsing operation step 21 ( 22), and if the drainage operation in the drainage operation determination step 22, the drainage step 23 for draining by operating the drainage pump and whether the water level drained in the drainage step 23 has reached a predetermined drainage level A drainage time determining step 24 for determining and a drainage time sensing step for detecting a time taken to drain to a predetermined water level when the predetermined water level is reached in the drainage water level determining step 24 ( 25) and a drainage time determination step 26 for comparing and determining whether the drainage time detected in the drainage time detection step 25 is longer than the preset drainage reference time, and the determination result at the drainage time determination step 26. If the detected drainage time is not longer than the drainage reference time, normal drainage proceeds, and if the drainage time is longer than the drainage reference time, it is determined that there is a foreign substance in the filter and counts, and stores the number of cloggings stored therein. The clogging number determining step 28 determines whether the number of times stored in the clogging number storing step 27 is greater than or equal to a predetermined number of times, and the clogging number determining step 28 determines whether the clogging number is greater than a predetermined number of times. Otherwise, the drainage completion determination step 29 for draining until the drainage is completed while judging whether the drainage is completed, and the blockage counting step 28 determines that the blockage count is greater than a predetermined number of times. To stop the can and clogging alarm and a display step of warning and display the filter blockage 30 is a so yiruyi.

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

세탁기에 전원을 인가하고, 이어서 세탁을 하기 위하여 세탁기에 세탁물을 넣고, 세탁기의 운전신호입력부(가)를 통해서 일련의 세탁행정에 대한 운전신호를 입력하게 되면, 상기 세탁기의 마이콤(나)에서는 입력된 세탁운전신호에 따라 기설정된 소정의 프로그램에 의하여 일련의 세탁행정인 세탁,헹굼,탈수운전을 수행하면서 세탁을 하게 되는바, 즉 상기 마이콤(나)에서는 배수기준시간설정단계(20)에서 배수시 세탁수위에 따라 소정수위까지 배수하는데 걸리는 배수시간을 배수기준시간으로 설정하여 놓은상태에서, 기설정된 소정의 프로그램에 의하여 세탁 또는 헹굼운전단계(20)로 가서 먼저 세탁운전이든 헹굼운전이든 급수구동부(다)를 제어하여 세탁조에 입력된 운전신호에 의하여 급수를 하고 수위감지부(라)를 제어하여 급수되는 수위를 감지하면서 급수를 하고, 소정의 급수가 완료되게 되면 상기 마이콤(나)에서는 모터구동부(마)를 제어하여 펄세이터를 정,역회전시켜 가면서 세탁또는 헹굼운전을 진행하게 된다.When power is supplied to the washing machine, and the laundry is put in the washing machine for washing, and the driving signal for a series of washing administrations is input through the driving signal input unit of the washing machine, the microcomputer (b) of the washing machine inputs the driving signals. The washing is performed while performing a series of washing, washing, rinsing, and dehydrating operations by a predetermined program according to a predetermined washing operation signal. That is, the microcomputer (b) drains in the drainage reference time setting step 20. In the state of setting the drainage time for draining up to a predetermined level according to the washing water level as the drainage reference time, go to the washing or rinsing operation step (20) by a predetermined program, the first water supply driving unit whether the washing operation or rinsing operation (C) to control the water supply according to the operation signal input to the washing tank, and to control the water level detector (D) to reduce the water level While the water supply, and when the predetermined water supply is to be completed, the microprocessor (B) is in progress to the pulsator to control the motor drive unit (E), forward and reverse rotation by going washing or rinsing operation.

상기와 같이 세탁 또는 헹굼을 진행하다가 상기 마이콤(나)에서는 배수운전판단단계(22)로 가서 상기 진행중인 세탁 또는 헹굼운전이 완료되어 배수운전이 되었는가를 판단하게 되고, 이때 판단결과 배수운전이 되지 않았으면 계속해서 세탁 또는 헹굼운전을 진행하게 되고, 상기 판단결과 배수운전이 되었으면, 상기 마이콤(나)에서는 배수단계(23)로 가서 세탁 또는 헹굼시 발생된 세탁수를 배수시키기 위하여 배수펌프구동부(바)를 제어하여 배수펌프로 배수를 시키게 된다.While performing the washing or rinsing as described above, the microcomputer (b) goes to the drainage operation determination step 22 to determine whether the washing or the rinsing operation in progress is completed and the drainage operation is completed. If it continues to the washing or rinsing operation, and if the determination resulted in the drainage operation, the microcomputer (b) to go to the draining step 23 to drain the washing water generated during the washing or rinsing drainage pump drive unit (bar ) To drain with the drain pump.

이때 상기 마이콤(나)에서는 배수수위판단단계(24)로 가서 배수되는 수위에 대하여 수위감지부(다)를 통해서 소정의 수위에 도달하였는가를 판단하고, 판단결과 배수수위가 소정의 수위에 도달하지 않았으면 상기 마이콤(나)에서는 소정의 수위에 도달할때까지 계속해서 배수펌프를 구동하여 배수를 진행하게 되며, 상기 판단결과 배수수위가 소정의 수위에 도달하였으면 상기 마이콤(나)에서는 배수시간감지단계(25)로 가서 상기 배수되는 수위가 소정의 수위에 도달할때까지 걸리는 시간을 감지하게 된다.At this time, the microcomputer (b) goes to the drainage water level determination step 24 and determines whether a predetermined water level has been reached through the water level detection unit C for the water level to be drained, and as a result of the determination, the water level does not reach the predetermined water level. If not, the microcomputer (b) continues to drive the drainage pump until a predetermined level is reached, and if the drainage level reaches a predetermined level, the microcomputer (b) detects the drainage time. Going to step 25, the time it takes for the drainage level to reach a predetermined level is detected.

이와같이 배수수위가 소정의 수위에 도달할때까지 걸리는 시간이 감지되게 되면 상기 마이콤(나)에서는 배수시간판단단계(26)로 가서 상기 소정의 수위까지 도달할때까지 걸리는 배수시간이 상기 배수기준시간설정단계(20)에서 설정된 배수기준시간보다 긴가를 판단하게 되고, 이때 판단 결과 배수시간이 배수기준시간보다 길지 않게 되면 상기 마이콤(나)에서 배수완료판단단계(29)로 가서 배수가 완료되었는가를 판단하면서 배수가 완료될때까지 상기 배수단계(20)로 부터 배수를 진행하게 되고, 상기 배수시간판단단계(26)에서 판단결과 배수시간이 배수기준 시간보다 길게 되면, 상기 마이콤(나)에서 배수구 필터에 이물질이 끼어있어 배수가 원활하게 이루어지지 않은 것으로 판단하여 막힘횟수저장단계(27)로 가서 막힘횟수를 가산 카운트한후 메모리부(아)를 제어하여 가산된 막힘횟수를 저장하고, 이어서 막힘횟수판단단계(28)로 가서 상기 저장된 막힘횟수가 기설정된 막힘횟수 이상인가를 판단하게 되고, 이때 판단결과 저장막힘횟수가 기설정된 막힘횟수 이상이 아니면, 상기 마이콤(나)에서는 배수완료판단단계(29)로 가서 배수가 완료되었는가를 판단하면서 배수가 완료될때까지 상기 배수단계(20)로부터 반복 수행하면서 배수를 진행하게 된다.In this way, when it is detected that the time taken for the water level to reach the predetermined level is detected, the microcomputer (b) goes to the drainage time determination step 26 and the drainage time for reaching the predetermined water level is the drainage reference time. It is determined whether the drainage time is longer than the drainage reference time set in the setting step 20. If the drainage time is not longer than the drainage reference time, the microcomputer (b) goes to the drainage completion determination step 29 to determine whether drainage is completed. When the drainage is proceeded from the drainage step 20 until the drainage is completed while judging, and the drainage time is longer than the drainage reference time as a result of the determination in the drainage time determining step 26, the drain filter in the microcomputer (b) Determination that the foreign matter is stuck in the drainage is not made smoothly go to the clogging frequency storage step (27) to add the number of clogging counts memo The control unit stores the added blockage by controlling the block, and then goes to the blockage determination step 28 to determine whether the stored blockage is greater than or equal to the preset blockage. If it is not more than the number of clogs, the microcomputer (b) proceeds to the drainage completion determination step 29 while determining whether the drainage is completed while repeatedly performing the drainage step 20 until the drainage is completed to proceed with the drainage.

그러나 상기 막힘횟수판단단계(28)에서 판단결과 저장된 막힘횟수가 기설정된 막힘횟수 이상이면, 상기 마이콤(나)에서는 필터가 막혀 배수가 원활하게 이루어지지 않은 것으로 판단하여 필터막힘경보 및 표시단계(30)로 가서 경보표시부(사)를 제어하여 배수구의 필터 막힘을 경보 및 표시하여 주게 됨으로써 사용자는 상기 경표시부(사)로 부터 경보 및 표시를 인지하고 즉시 배수구의 필터를 청소해 주게 되어 배수구의 필터 막힘으로 인한 배수가 이루어지지 않게 되는 것을 사전에 방지할 수 있게 되는 것이다.However, if the clogging number is determined as the clogging frequency determination step 28, if the stored clogging number is more than the preset clogging number, the microcomputer (b) determines that the filter is clogged and the drainage is not made smoothly. Go to the) and control the alarm indicator (G) to alarm and display the clogging of the filter of the drain, so the user recognizes the alarm and indication from the light indicator (G) and immediately clean the filter of the drain. It is possible to prevent the drainage due to the blockage in advance.

이상에서 설명한 바와같이 본 발명은 일련의 세탁행정에서 배수시 배수되는 수위가 기설정된 소정의 배수수위까지 도달하는데 걸리는 배수시간을 감지하고 이 감지된 배수시간을 기설정된 배수기준시간과의 비교 판단하여 판단결과 감지된 배수시간이 기설정된 배수기준시간 보다 길게 되면 필터에 막힘이 발생된 것으로 판단하여 막힘횟수를 저장하였다가 이 저장된 막힘횟수가 기설정된 소정의 횟수 이상이면 필터의 막힘을 청소하라는 경보 및 표시를 해주도록 함으로써, 사용자는 간혹 부주의 및 점검소홀로 인하여 배수가 안되어 세탁을 망치거나 하지 못하게 되는 것을 사전에 방지할 수 있는 효과를 제공하게 되는 것이다.As described above, the present invention detects a drainage time for reaching a predetermined drainage level when the water level drained in a series of washing strokes is drained, and compares the detected drainage time with a preset drainage reference time. If it is determined that the detected drainage time is longer than the preset drainage reference time, it is determined that a blockage has occurred in the filter and the blockage count is stored. If the stored blockage count is more than a predetermined number of times, an alarm to clean the blockage of the filter and By making a mark, the user sometimes provides an effect to prevent the drainage of the laundry due to carelessness and negligence and ruining the laundry.

Claims (1)

일련의 세탁행정에서 세탁수위에 따라 소정수위까지 배수하는데 걸리는 배수기준시간을 설정하여 놓은 상태에서, 배수시 상기 배수기준시간을 기준하여 소정수위까지 배수하는데 걸리는 배수시간과를 비교하여 배수시간이 배수기준시간보다 길어졌을 경우, 이를 카운트한후 이 카운트한 횟수가 한 번 세탁시 소정의 횟수 이상이면 필터막힘을 경보표시하도록 이루어짐을 특징으로 하는 세탁기의 배수구 필터 막힘 감지방법.The drainage time is drained in comparison with the drainage time for draining to a predetermined level based on the drainage reference time when draining, with the drainage standard time set to drain to a predetermined level according to the washing level in a series of washing administrations. When it is longer than the reference time, after the count is counted if the count is more than a predetermined number of times of washing once washing the drain filter clogging detection method of the washing machine, characterized in that the alarm is made to display.
KR1019950014018A 1995-05-31 1995-05-31 The filter detecting method of a washing machine KR0149974B1 (en)

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