KR20040046934A - Error Detecting Method for Washing Machine - Google Patents

Error Detecting Method for Washing Machine Download PDF

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Publication number
KR20040046934A
KR20040046934A KR1020020074981A KR20020074981A KR20040046934A KR 20040046934 A KR20040046934 A KR 20040046934A KR 1020020074981 A KR1020020074981 A KR 1020020074981A KR 20020074981 A KR20020074981 A KR 20020074981A KR 20040046934 A KR20040046934 A KR 20040046934A
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South Korea
Prior art keywords
water
washing machine
water supply
washing
water level
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KR1020020074981A
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Korean (ko)
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KR100505224B1 (en
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정보선
변상덕
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엘지전자 주식회사
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Priority to KR10-2002-0074981A priority Critical patent/KR100505224B1/en
Publication of KR20040046934A publication Critical patent/KR20040046934A/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
    • 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 
    • D06F33/47—Responding to irregular working conditions, e.g. malfunctioning of pumps 
    • 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
    • D06F33/34—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling
    • 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
    • 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
    • D06F2105/58—Indications or alarms to the control system or to the user

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

Abstract

PURPOSE: A method of sensing errors for water supply of a washing machine is provided to check errors for the supply of water by the change of conductivity detected by an electrode sensor and to inform a user of the error by mounting the electrode sensor under a washing tub. CONSTITUTION: A method of sensing errors for water supply of a washing machine is composed of steps for starting to supply the water into the washing machine; checking if the level of the water supplied into a washing tub reaches a set water level(S26); completing a water supply process and starting a washing process if reaching the set water level(S27,S28); sensing the conductivity changes of an electrode sensor mounted under the washing tub if not reaching the set water level(S29); and stopping a water supplying process and generating an error warning if the change of conductivity is not detected(S31,S32). If the change of conductivity is detected, the process returns to the step for checking if the water level reaches the set water level.

Description

세탁기의 급수에러 감지방법{Error Detecting Method for Washing Machine}Error Detecting Method for Washing Machine

본 발명은 세탁기의 급수에러 감지방법에 관한 것으로서, 특히 세탁기의 급수행정 중 에러 발생여부를 감지하여 에러 발생 시 급수행정을 중지시키고 사용자에게 인지시키는 세탁기의 급수에러 감지방법에 관한 것이다.The present invention relates to a water supply error detection method of a washing machine, and more particularly, to a water supply error detection method of a washing machine which detects whether an error occurs during a water supply stroke of a washing machine and stops the water supply stroke when an error occurs.

세탁기는 세척물이 담기는 세탁조와, 상기 세탁조를 회전시키는 모터, 상기 세탁기의 세탁 행정을 조정하며 세탁기의 제반사항을 제어하는 마이컴과, 상기 마이컴의 제어에 따라 온/오프되는 급수/배수 밸브 등으로 구성되어 세탁조에 담긴 세탁물의 세탁 행정을 수행한다.The washing machine includes a washing tank containing the washing water, a motor for rotating the washing tank, a microcomputer for adjusting the washing stroke of the washing machine and controlling the general matters of the washing machine, and a water supply / drain valve that is turned on / off under the control of the microcomputer. Consists of the washing process of the laundry contained in the washing tank.

상기 세탁 행정의 원활한 수행을 위하여 종래 세탁기는 그 외에도 통상 상기 세탁조에 담긴 세척물의 양을 감지하는 포량 감지센서와, 상기 세탁조의 수위를 측정하는 수위센서를 더 포함하여 구성된다.In order to perform the washing process smoothly, the conventional washing machine further includes a quantity sensor for detecting an amount of washing water contained in the washing tank, and a water level sensor for measuring the level of the washing tank.

종래 세탁행정의 수행과정을 설명하면 다음과 같다.Referring to the process of performing the conventional washing administration as follows.

먼저, 제1 단계에서 전원이 온(S1)되어, 제2 단계에서 사용자가 동작버튼을 조작(S2)하면, 제3 단계에서 상기 세탁기의 세탁조에 담긴 포량이 감지(S3)되고, 제4 단계에서 세탁시 수위가 결정(S4)된다. 그 후 제5 단계에서 급수가 시작(S5)되며, 제6 단계에서는 설정수위에 급수되는 물의 수위가 도달하였는지 확인(S6)된다.First, when the power is turned on (S1) in the first step, the user operates the operation button (S2) in the second step, in the third step the amount of water contained in the washing tub of the washing machine is detected (S3), the fourth step In washing, the water level is determined (S4). Thereafter, the water supply is started in the fifth step (S5), and in the sixth step, it is checked whether the water level of the water supplied to the set water level is reached (S6).

만일, 상기 제6 단계에서 급수되는 물의 수위가 설정수위에 도달한 것으로 확인된 경우, 제7,8 단계에서 급수가 종료(S7)되고, 정상적인 세탁행정이 진행(S8)된다. 한편, 상기 제6 단계에서 설정수위에 도달하지 않은 것으로 확인된 경우 상기 세탁기는 제9 단계에서 급수가 이루어진 후 설정시간이 경과하였는지 확인(S9)한다.If it is confirmed that the water level of the water supplied in the sixth step reaches the set water level, the water supply is terminated in steps 7 and 8 (S7), and the normal washing process proceeds (S8). On the other hand, if it is determined in step 6 that the set water level has not been reached, the washing machine checks whether the set time has elapsed after the water supply is made in step 9 (S9).

설정시간이 경과하지 않은 경우 상기 제5 단계로 복귀하나 경과하지 않은 경우 제10 단계에서 급수는 중지(S10)되고, 제11 단계에서 급수 에러경보가 발생(S11)한다.If the set time has not elapsed, the flow returns to the fifth step, but if the elapsed time has not elapsed, the water supply is stopped in step 10 (S10), and in step 11, a water supply error alarm occurs (S11).

그러나, 상기와 같은 방법을 통해 급수에러를 파악하기 위해서는 설정시간만큼 시간이 경과되어야 하므로 사용자는 급수 에러가 발생하지 한참 지나서야 이를 파악할 수 있다는 문제점이 있다.However, in order to identify the water supply error through the above method, since the time must be elapsed by the set time, the user has a problem that the water supply error does not occur until a long time ago.

본 발명은 상기한 종래 기술의 문제점을 해결하기 위하여 안출된 것으로서, 그 목적은 세탁조의 하부에 전극센서를 장착하고 상기 전극센서를 통해 감지되는 전도도의 변화여부를 통해 급수 에러여부를 파악하여 사용자에게 이를 인지시키는 세탁기의 급수에러 감지방법을 제공하는데 있다.The present invention has been made to solve the above problems of the prior art, the purpose of which is to install the electrode sensor in the lower part of the washing tank and determine whether the water supply error through the change in conductivity detected by the electrode sensor to the user The present invention provides a method for detecting a water supply error of a washing machine.

도 1은 종래 세탁기의 급수에러 감지방법의 흐름이 도시된 순서도,1 is a flow chart showing the flow of water supply error detection method of a conventional washing machine,

도 2는 본 발명에 따른 세탁기의 단면이 도시된 개략도,2 is a schematic view showing a cross section of a washing machine according to the present invention;

도 3은 본 발명에 따른 세탁기의 급수에러 감지방법의 흐름이 도시된 순서도이다.3 is a flow chart showing the flow of water supply error detection method of the washing machine according to the present invention.

<도면의 주요 부분에 관한 부호의 설명><Explanation of symbols on main parts of the drawings>

1 : 내조 2 : 외조1: inner bird 2: outer bird

3 : 세탁조4 : 전극센서3: washing tank 4: electrode sensor

5 : 구동모터6 : 배수밸브5: driving motor 6: drain valve

상기한 과제를 해결하기 위한 본 발명에 의한 세탁기의 급수에러 감지방법의 특징에 따르면, 세탁기의 급수가 시작되는 제1 단계와, 상기 세탁조의 하부에 장착된 전극센서의 전도도 변화여부가 감지되는 제2 단계와, 상기 제2 단계에서 전도도 변화가 감지되지 않는 경우 급수행정이 중단되며 에러경보가 생성되는 제3 단계로 이루어진다.According to a feature of the water supply error detection method of the washing machine according to the present invention for solving the above problems, the first step of starting the water supply of the washing machine, and the change of the conductivity of the electrode sensor mounted on the lower portion of the washing tank is detected Step 2 and, if no change in conductivity is detected in the second step, the water supply stroke is stopped and a third step in which an error alarm is generated.

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

본 발명에 의한 세탁기는 도 2에 도시된 바와 같이, 세탁물이 담기는 내조(1)와 외조(2)로 이루어진 세탁조(3)와, 상기 세탁조(3)의 외부 하단에 장착되어 상기 세탁조로 급수된 물의 경도를 감지하는 전극센서와 온도센서로 이루어지는 수질감지센서(4)와, 상기 세탁조로 급수된 물의 수위를 측정하는 수위센서(미도시)와, 상기 내조(1)에 연결되어 상기 내조(1)를 회전시키는 구동모터(5)와, 상기 세탁조(3)의 하단에 연결되어 상기 세탁조(3)로 급수된 물이 배수되도록 온/오프 되는 배수밸브(6)로 구성된다. 그 외에도, 본 발명에 따른 세탁기에는 포량감지센서 등이 장착 가능하다.Washing machine according to the present invention, as shown in Figure 2, the washing tank (3) consisting of the inner tank (1) and outer tank (2) containing the laundry, and is mounted on the outer lower end of the washing tank (3) to supply water to the washing tank Water quality sensor 4 consisting of an electrode sensor and a temperature sensor for detecting the hardness of the water, a water level sensor (not shown) for measuring the water level of the water supplied to the washing tank, and the inner tank 1 is connected to the inner tank ( A driving motor 5 for rotating 1) and a drain valve 6 connected to the lower end of the washing tub 3 are turned on / off so that water supplied to the washing tub 3 is drained. In addition, the washing machine according to the present invention can be equipped with a quantity sensor.

상기 수질감지센서(4) 중 전극센서는 상기 세탁조로 급수된 물의 경도(Mg+,Ca+이온이 녹아있는 양)를 감지하며, 상기 전극센서에서 감지된 값을 상기 세탁기의 마이컴(미도시)은 경도값으로 환산하며 상기 환산된 경도값은 상기 세탁기의 디스플레이부에 디스플레이된다.The electrode sensor of the water quality sensor (4) detects the hardness of the water (Mg +, Ca + ions dissolved in the water) supplied to the washing tank, the value detected by the electrode sensor of the microcomputer (not shown) of the washing machine Is converted into a hardness value and the converted hardness value is displayed on a display unit of the washing machine.

도 3은 본 발명에 따른 세탁기의 수질감지센서를 이용한 급수에러 감지방법이 도시된 순서도이다.3 is a flowchart illustrating a water supply error detection method using a water quality sensor of a washing machine according to the present invention.

먼저, 제21 단계에서 세탁기로 전원이 입력(S21)된 후, 제22 단계에서 사용자가 상기 세탁기로 동작명령을 동작버튼을 조작함으로써 입력(S22)한다.First, after the power is input to the washing machine (S21) in step 21, the user inputs an operation command to the washing machine by operating an operation button in step 22 (S22).

제23 단계에서 상기 세탁기의 포량감지센서를 통해 상기 세탁기의 세탁조에담긴 세탁물의 포량이 감지(S23)되며, 제24 단계에서 상기 세탁기로 급수되는 물의 수위가 결정(S24)된다.In the twenty-third step, the quantity of laundry in the washing tub of the washing machine is detected through the quantity detection sensor of the washing machine (S23), and in step 24, the water level of the water supplied to the washing machine is determined (S24).

제25 단계에서는 상기 제24 단계에서 수위가 결정됨에 따라 급수가 온(S25)된다.In the 25th step, the water supply is turned on (S25) as the water level is determined in the 24th step.

제26 단계에서는 상기 세탁기가 수위감지센서를 통해 세탁기로 급수되는 물의 수위가 설정수위에 도달하였는지 확인한다. (S26)In the twenty-sixth step, the washing machine checks whether the water level of the water supplied to the washing machine through the water level sensor reaches a set water level. (S26)

만일, 상기 제26 단계에서 급수되는 물의 수위가 설정수위에 도달한 경우 제27, 28 단계에서 급수행정이 종료(S27)되며, 제28 단계에서 세탁행정이 진행(S28)된다.If the water level of the water supplied in the 26th step reaches the set level, the water supply stroke is terminated in steps 27 and 28 (S27), and the washing process proceeds in step 28 (S28).

한편, 상기 제26 단계에서 급수되는 물의 수위가 설정수위에 도달하지 않은 경우 제29 단계에서 상기 세탁기는 일정시간 동안 상기 전극센서를 통해 세탁조 내부의 전도도를 감지(S29)한다.On the other hand, if the water level of the water supplied in the 26th step does not reach the set water level in the 29th step the washing machine detects the conductivity inside the washing tank through the electrode sensor for a predetermined time (S29).

제30 단계에서는 상기 제29 단계에서 감지한 전도도에 변화가 있는지 확인(S30)한다. 만일, 상기 제30 단계에서 전도도 변화가 있는 경우 제25 단계로 복귀한다. 한편, 상기 제30 단계에서 전도도 변화가 없는 경우 제31 단계에서 급수행정은 중단(S31)되고, 제32 단계에서 급수에러 경보가 발생(S32)한다.In the thirtieth step, it is checked whether there is a change in the conductivity detected in the twenty-ninth step (S30). If there is a conductivity change in step 30, the process returns to step 25. On the other hand, when there is no conductivity change in the thirtieth step, the water supply stroke is stopped in step 31 (S31), and in step 32, a water supply error alarm is generated (S32).

따라서, 설정수위에 급수된 물의 수위가 도달하지 않더라도 전극센서의 양단 전극이 초기에 공기에 노출되었을 경우의 전도도와 급수가 이루어진 경우 물속에서의 양단 전극의 전도도가 다르기 때문에 전도도의 변화가 감지된 경우 급수행정이 진행되고 있음을 알 수 있다. 그러나, 일정시간 경과 시점에 전극센서에서 감지되는 전도도의 변화가 없을 경우 이는 급수행정이 정상적으로 진행되지 않고 있음을 의미하는 것이므로 상기 세탁기의 디스플레이부에는 급수에러가 디스플레이되고, 부저음 또는 음성으로 급수에러가 경고된다.Therefore, even if the water level is not reached, the conductivity of both electrodes of the electrode sensor is initially exposed to air, and the conductivity of both electrodes in the water is different when water is supplied. It can be seen that the water supply administration is in progress. However, if there is no change in conductivity detected by the electrode sensor after a certain time, this means that the water supply stroke is not progressing normally. Therefore, a water supply error is displayed on the display unit of the washing machine, and a water supply error is generated by a buzzer sound or voice. Warning.

상기와 같이 구성되는 본 발명의 세탁기의 급수에러 감지방법은 세탁물이 담기는 세탁조의 하부에 전극센서를 장착하고 일정시간동안 상기 전극센서를 통해 감지되는 전도도의 변화여부를 관찰하여 만일 변화가 있는 경우 급수행정 및 세탁행정을 정상적으로 진행시키고 변화가 없는 경우 급수행정을 중단시킴과 동시에 에러 경보를 생성함으로써 사용자가 급수행정이 정상적으로 진행되었는지 빠른 시간 내에 파악할 수 있도록 할 수 있는 효과가 있다.Water supply error detection method of the washing machine of the present invention configured as described above is equipped with an electrode sensor in the lower part of the washing tank containing the laundry and if there is a change by observing whether the conductivity detected through the electrode sensor for a predetermined time If the water administration and washing administration proceeds normally, and there is no change, the water administration is stopped and an error alarm is generated so that the user can quickly determine whether the water administration has proceeded normally.

Claims (4)

세탁기의 급수가 시작되는 제1 단계와;A first step of starting water supply of the washing machine; 상기 세탁조의 하부에 장착된 전극센서의 전도도 변화여부가 감지되는 제2 단계와;A second step of detecting whether a change in conductivity of an electrode sensor mounted at a lower portion of the washing tank is detected; 상기 제2 단계에서 전도도 변화가 감지되지 않는 경우 급수행정이 중단되며 에러경보가 생성되는 제3 단계를 포함하여 이루어지는 것을 특징으로 하는 세탁기의 급수에러 감지방법.And a third step of stopping a water supply stroke and generating an error alarm when a change in conductivity is not detected in the second step. 제 1 항에 있어서,The method of claim 1, 상기 세탁기의 급수에러 감지방법은 상기 제2 단계 전에 세탁조로 급수된 물의 수위가 설정수위에 도달하였는지 확인하는 과정을 더 포함하여 구성되며,The water supply error detecting method of the washing machine further includes a step of checking whether the water level of the water supplied to the washing tank before the second step reaches a set water level. 상기 확인과정에서 설정수위에 도달하지 않은 것으로 확인된 경우 상기 제2 단계가 진행되는 것을 특징으로 하는 세탁기의 급수에러 감지방법.The water supply error detection method of the washing machine, characterized in that the second step is carried out if it is confirmed that the set water level is not reached in the checking process. 제 2 항에 있어서,The method of claim 2, 상기 세탁기의 급수에러 감지방법은 상기 확인과정에서 설정수위에 도달한 것으로 확인된 경우 급수가 종료되고 세탁행정이 진행되는 것을 특징으로 하는 세탁기의 급수에러 감지방법.The water supply error detection method of the washing machine is a water supply error detection method of the washing machine, characterized in that the water supply is terminated and the washing administration proceeds when it is confirmed that the set water level is reached in the checking process. 제 2 항에 있어서,The method of claim 2, 상기 제2 단계에서 전도도 변화가 확인된 경우 상기 급수된 물의 설정수위 도달여부 확인과정으로 복귀하는 것을 특징으로 하는 세탁기의 급수에러 감지방법.If the conductivity change is confirmed in the second step, the water supply error detection method of the washing machine, characterized in that returning to the process of checking whether the water level reaches the set level.
KR10-2002-0074981A 2002-11-28 2002-11-28 Error Detecting Method for Washing Machine KR100505224B1 (en)

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