KR0146328B1 - How to control your dishwasher - Google Patents
How to control your dishwasherInfo
- Publication number
- KR0146328B1 KR0146328B1 KR1019930013475A KR930013475A KR0146328B1 KR 0146328 B1 KR0146328 B1 KR 0146328B1 KR 1019930013475 A KR1019930013475 A KR 1019930013475A KR 930013475 A KR930013475 A KR 930013475A KR 0146328 B1 KR0146328 B1 KR 0146328B1
- Authority
- KR
- South Korea
- Prior art keywords
- washing
- state
- water
- level switch
- water level
- Prior art date
Links
Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4287—Temperature measuring or regulating arrangements
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/421—Safety arrangements for preventing water damage
- A47L15/4212—Detection of water leaks; Collection of leaked water, e.g. in the casing
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4244—Water-level measuring or regulating arrangements
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
- A47L2401/09—Water level
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
- A47L2501/26—Indication or alarm to the controlling device or to the user
Landscapes
- Washing And Drying Of Tableware (AREA)
Abstract
본 발명은 식기세척기의 제어방법에 관한 것으로, 세척중에 세척수가 외부로 누설되는 경우 발생되는 사고를 막기 위해 세척수의 온도가 소정의 세척시간동안 미리 설정된 온도에 도달하였는지 여부를 체크하고, 세척수의 온도가 상기 소정의 온도에 도달하지 않으면 계속해서 상기 히터를 구동시키고 소정의 온도에 도달하면 히터구동부의 작동을 중지시키며, 수위스위치(5)가 '온'상태로 되었는지 여부를 체크하여 온상태이면 배수행정을 수행하고 '온'상태가 아니면 세척조(1) 상부의 세척수가 하부로 모이는데 소요되는 소정의 '정상복귀시간' 동안 계속적으로 상기 수위스위치(5)가 '온'상태로 되었는지 여부를 체크하고, 수위스위치(5)가 '온'상태로 되지 않으면 누수가 발생된 것으로 판단하여 주의경보를 하고 식기세척기의 이상발생을 표시한다.The present invention relates to a control method of a dishwasher, and checks whether the temperature of the washing water reaches a preset temperature for a predetermined washing time in order to prevent an accident caused when the washing water leaks to the outside during washing, and the temperature of the washing water If the temperature does not reach the predetermined temperature continues to drive the heater and when the predetermined temperature is reached stops the operation of the heater driver, checks whether the water level switch (5) is in the 'on' state to drain if If it is not in the 'ON' state, it is continuously checked whether the water level switch 5 is in the 'ON' state for a predetermined 'normal return time' required to collect the washing water in the upper part of the washing tank 1 to the lower part. If the water level switch 5 is not in the 'on' state, it is determined that a leak has occurred and a caution warning is given to indicate an abnormal occurrence of the dishwasher.
Description
제1도는 식기세척기의 구조를 간략하게 나타낸 도면.Figure 1 is a simplified view showing the structure of the dishwasher.
제2도는 세척기의 작동에 따른 수위스위치의 개폐 상태를 나타낸 도면.2 is a view showing the opening and closing state of the water level switch according to the operation of the washing machine.
제3도는 본 발명에 따른 제어방법을 설명하기 위한 흐름도.3 is a flowchart illustrating a control method according to the present invention.
*도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1:세척조 2:상부분사노즐1: washing tank 2: upper part nozzle
3:하부분사노즐 4:세척펌프모터3: lower part nozzle 4: washing pump motor
5:수위스위치5: water level switch
본 발명은 식기세척기의 제어방법에 관한 것으로, 더 구체적으로는 세척조(tub)의 누수여부를 판단하여 세척기의 작동을 제어하는 방법에 관한 것이다.The present invention relates to a control method of a dish washer, and more particularly, to a method of controlling the operation of the washing machine by determining whether or not the washing tub (tub).
제1도에 개략적으로 도시된 바와 같이, 통상적인 식기세척기는 세척조(1) 내의 상하부에 구성되어 있는 상부분사 노즐(2)과 하부분사노즐(3), 이들 노즐(2,3)로 세척수를 공급하기 위한 세척펌프모터(4), 그리고 세척조(1) 내에 담긴 세척수의 수위를 감지하기 위한 수위스위치(5)를 포함한다.As schematically shown in FIG. 1, a conventional dishwasher is provided with an upper injection nozzle 2, a lower injection nozzle 3, and three nozzles 2 and 3, which are configured in the upper and lower parts of the washing tank 1. It includes a washing pump motor (4) for supplying, and a water level switch (5) for detecting the water level of the washing water contained in the washing tank (1).
이와 같은 세척기의 동작을 개략적으로 살펴보면, 통상적으로 마이크로컴퓨터(microcomputer)에 의해 실현되는 제어수단은 수위스위치(5)가 '온'(ON)될 때 까지 세척조(1) 내로 세척수를 공급하고 분사노즐(2,3)을 통하여 그 물을 식기에 분사시키도록 제어를 수행함으로써 식기의 세척이 이루어지도록 한다.Referring to the operation of such a washing machine schematically, the control means usually realized by a microcomputer supplies the washing water into the washing tank (1) until the water level switch (5) is 'ON' and spray nozzle The control is performed to spray the water to the dishes through (2, 3) so that the dishes are washed.
상부 및 하부분사노즐(2,3)로부터 분사되는 물에 의해 각종 식기에 묻은 음식지꺼기들이 일차로 씻겨지면 상기 제어수단은 상기 수위스위치(5)가 오프(OFF)될 때 까지 배수를 위한 제어를 수행하고 배수가 완료되면 다시 급수를 위한 제어를 수행하여 세척력을 높인다.When the food debris on various dishes is first washed by the water sprayed from the upper and lower four nozzles (2, 3), the control means controls for drainage until the water level switch (5) is turned off (OFF) When the drainage is completed, control for water supply is performed again to increase the washing power.
이어, 살균소독을 위하여 히터(heater)를 작동시키고 이 히터에 의해 끓는 깨끗한 세척수를 식기들로 분사시켜 세척동작을 계속하게 된다.Subsequently, a heater is operated for sterilization and spraying clean washing water boiled by the heaters to dishware to continue the washing operation.
이상과 같은 세척동작이 수행되는 경우 수위스위치(5)는, 제2도에 도시된 바와 같이, 급수가 완료된 단계에서는 '온'상태(a), 세척도중에는 '온' 또는 '오프'상태(b), 세척이 완료된 단계에서는 '온'상태(c), 배수가 완료된 단계에서는 '오프'상태(d)로 된다.When the washing operation as described above is performed, the water level switch 5, as shown in Figure 2, the 'on' state (a) in the stage of water supply is completed, the 'on' or 'off' state (b) during the washing ), The cleaning is completed in the 'on' state (c), the drainage is completed in the 'off' state (d).
세척동작이 수행되는 도중에는 세척조(1)내의 물이 펌프(도시되지않음)에 의해 대부분 상부로 퍼 올려진 상태에서 노즐(2,3)을 통하여 분사되어 세탁조(1)에 모여지기 때문에 수위스위치(5)의 개폐상태가 수시로 변환된다.While the washing operation is performed, the water in the washing tank 1 is sprayed through the nozzles 2 and 3 while being mostly pumped upward by a pump (not shown), so that the water level switch ( The open / closed state of 5) is frequently changed.
따라서, 세척동작이 수행되는 도중에이 스위치(5)에 의해 수위를 정확하게 파악하는 것이 곤란해 진다.Therefore, it becomes difficult to accurately grasp the water level by this switch 5 during the washing operation.
따라서, 종래의 식기세척기에서는 1행정의 세척동작이 끝난후에 세척조내의 수위를 검출하지 않고 세탁수의 온도가 소정의 온도까지 이르게 되었는지를 검출하여 상기 소정의 온도에 이르게 되면 세척행정의 수행을 완료하고 다음 행정이 수행되도록 하였다.Therefore, the conventional dishwasher detects whether the temperature of the washing water reaches a predetermined temperature without detecting the water level in the washing tank after the one-stroke washing operation is completed, and when the temperature reaches the predetermined temperature, the washing operation is completed. The following administration was to be carried out.
그러나, 이런 경우에는 세척조(1)의 일부가 파손되거나 도어(door:도시되지않음)의 방수불량으로 급수조이외의 위치에서 누수현상이 발생될 때 급수시에는 누수가 발생되지 않아 정상으로 판단하지만, 실제적으로는 세척동작시 누수가 발생된다. 따라서, 전자부품이 젖게되어 파손되거나 누전현상이 발생되며, 세척수가 없는 상태에서 히터가 계속적으로 가열됨으로써 화재발생의 위험이 있었다.However, in this case, when a part of the washing tank 1 is damaged or a leak occurs at a position other than the water supply tank due to a poor water resistance of the door (not shown), water leakage does not occur during water supply. In practice, water leakage occurs during the cleaning operation. Therefore, the electronic parts get wet and break or short circuit occurs, and there is a risk of fire by continuously heating the heater in the absence of washing water.
따라서, 본 발명은 세척조의 일부가 파손되거나 도어의 결함으로 누수되는 경우에 발생될 수 있는 사고를 미연에 방지할 수 있도록 소정의 '정상복귀시간'을 도입하여 식기세척기의 작동을 제어하는 방법을 제공하는 것을 그 목적으로 한다.Therefore, the present invention provides a method of controlling the operation of the dishwasher by introducing a predetermined 'normal return time' so as to prevent an accident that may occur when a part of the washing tank is damaged or leaks due to a door defect. Its purpose is to provide.
이와 같은 목적을 달성하기 위한 본 발명의 방법은 식기세척을 지시하는 소정의 명령이 입력되면 세탁조에 세탁수를 공급하는 급수동작을 수행하고 수위스위치가 '온'상태인지 여부를 체크하는 단계와, 상기 수위스위치가 '온'상태가 아니면 상기 급수동작을 계속적으로 수행하고 '온' 상태이면 상기 급수동작을 중단하고 식기세척을 위한 소정의 제어를 수행함과 아울러 살균 및 소독을 위하여 히터구동부를 제어하여 히터를 작동시키는 단계와, 세척수의 온도가 소정의 세척시간동안 미리 설정된 온도에 도달하였는지 여부를 체크하는 단계와, 세척수의 온도가 상기 소정의 온도에 도달하지 않으면 계속해서 상기 히터를 구동시키고 상기 소정의 온도에 도달하면 상기 히터구동부의 작동을 중지시키는 단계와, 상기 수위스위치가 '온'상태로 되었는지 여부를 체크하여 '온' 상태이면 배수행정을 수행하고 '온'상태가 아니면 상기 세척조의 상부에 흩어져 있는 세척수가 하부로 모이는데 소요되는 소정의 '정상복귀시간' 동안 계속적으로 상기 수위스위치가 '온' 상태로 되었는지 여부를 체크하는 단계와, 상기 수위스위치가 '온' 상태로 되지 않으면 누수가 발생된 것으로 판단하여 주의경보를 하고 상기 식기세척기의 이상발생을 표시하는 단계를 포함하는 것이 특징이다.The method of the present invention for achieving the above object comprises the step of performing a water supply operation for supplying the washing water to the washing tank when a predetermined command to instruct the dish washing and checking whether the water level switch is in the 'on' state, If the water level switch is not in the 'on' state, the water supply operation is continuously performed. If the water level switch is in the 'on' state, the water supply operation is interrupted and the heater control unit is controlled for sterilization and disinfection while performing predetermined control for dish washing. Operating the heater, checking whether the temperature of the washing water has reached a preset temperature for a predetermined washing time, and if the temperature of the washing water does not reach the predetermined temperature, continuously driving the heater and Stopping the operation of the heater driving unit when the temperature is reached, and whether the water level switch If the water level is 'ON', the water discharge switch is performed. If not, the water level switch continuously operates for a predetermined 'normal return time' for collecting the washing water scattered on the upper portion of the washing tank to the lower portion. Checking whether it is in an 'on' state, and determining that a leak has occurred if the water level switch is not in an 'on' state, and alerting and displaying an abnormal occurrence of the dishwasher. .
이제부터 첨부된 제3도를 참조하면서 본 발명에 대해 상세히 설명하도록 하겠다.Hereinafter, the present invention will be described in detail with reference to FIG. 3.
식기의 세척을 위한 소정의 명령이 입력되면 제어수단(도시되지 않음)은 세탁조(1)에 세탁수를 공급하기 위한 제어를 수행하고(S1), 수위스위치(5)가 '온' 상태인지여부를 체크한다(S2).When a predetermined command for washing the dishes is input, the control means (not shown) performs a control for supplying the washing water to the washing tank 1 (S1), and whether the water level switch 5 is in the 'on' state. Check (S2).
상기 수위스위치(5)가 '온'상태가 아니면(단계 S2에서 '아니오'이면) 상기의 급수동작을 계속적으로 수행하고 '온'상태이면 (단계S2에서 '예'이면) 급수동작을 중단하고 앞에서 설명된 바와 같이 식기의 세척을 위한 일련의 제어(예를 등어, 세척펌프 및 모터에 대한 제어)를 수행한다(S3).If the water level switch 5 is not in the 'on' state (if no in step S2), the water supply operation is continuously performed, and if the water level switch 5 is in the 'on' state (if YES in the step S2), the water supply operation is stopped. As described above, a series of controls (for example, control of a shark, a washing pump and a motor) for washing dishes are performed (S3).
물론, 이때에는 수위스위치(5)가 일정한 상태 즉, '온'상태와 오프상태 중 어느 하나의 상태를 유지하지 않기 때문에 수위스위치의 상태를 체크하는 것은 의미가 없다.Of course, at this time, it is not meaningful to check the state of the water level switch because the water level switch 5 does not maintain any of the states of the 'on' state and the off state.
이상과 같이 식기세척동작의 수행과 아울러 식기의 살균 및 소독을 위하여 히터구동부(도시되지 않음)를 제어하여 히터를 작동시켜서 세척수를 데운다(S4).As described above, the washing water is heated by operating a heater by controlling a heater driving unit (not shown) to perform the dish washing operation and sterilization and disinfection of the dishes (S4).
이어, 상기 세척수의 온도가 소정의 세척시간동안 미리 설정된 온도에 도달하는지 여부를 체크하고(S5), 세척수의 온도가 상기 소정의 온도에 도달하지 않으면 계속해서 히터를 구동시키고 상기 소정의 온도에 도달하면 히터 구동부의 작동을 중지시킨다(S6).Then, it is checked whether the temperature of the washing water reaches a preset temperature for a predetermined washing time (S5), and if the temperature of the washing water does not reach the predetermined temperature, the heater is continuously driven and the predetermined temperature is reached. If it stops the operation of the heater driving unit (S6).
누수가 발생되지 않은 정상상태인 경우에는 세척이 완료된 후 세척조(1)의 상부에 흩어져 있던 모든 세척수가 하부로 모이게 되는데 소요되는 소정의시간(이하, '정상복귀시간' 이라 함)이 경과하면 다시 수위스위치(5)는 '온'상태로 된다.In the normal state without leaks, after the washing is completed, a predetermined time (hereinafter referred to as 'normal return time') required for all washing water dispersed in the upper part of the washing tank 1 to collect to the lower part again The water level switch 5 is turned on.
따라서, 세척이 완료된 후 상기 '정상복귀시간' 동안 수위스위치(5)의 '온'상태 여부를 체크하면 누수여부를 판별할 수 있게된다.Therefore, after the cleaning is completed, it is possible to determine whether or not the water leakage by checking the 'on' state of the water level switch 5 during the 'normal return time'.
이에 따라 히터구동부의 작동이 중지된 후 다시 수위스위치(5)가 '온'상태로 되었는지 여부를 체크하여(S7), 온상태이면 다음의 배수행정을 수행하고, '온'상태가 아니면 상기 '정상복귀시간'동안 계속적으로 수위스위치(5)가 '온'상태로 되었는 지의 여부를 체크한다(S9).Accordingly, after the operation of the heater driver is stopped, the water level switch 5 again checks whether the state is in the 'ON' state (S7), and if it is in the ON state, the following drainage stroke is performed. It is checked whether or not the water level switch 5 is in the 'on' state continuously during the normal return time (S9).
이 때, 상기 '정상복귀시간' 동안 수위스위치(5)가 '온'상태로 되지 않으면 누수가 발생된 것으로 판단하여 주의경보를 하고 식기세척기에 이상이 발생되었음을 표시한다(S10).At this time, if the water level switch 5 is not in the 'on' state during the 'normal return time', it is determined that a leak has occurred and a caution alarm is displayed to indicate that an abnormality has occurred in the dish washer (S10).
이 때, 상기의 세척방법은 1행정의 세척동작을 설명한 것으로서, 식기세척기는 상기와 같은 세척행정을 여러번 반복함으로써, 식기의 세척을 수행한다.At this time, the washing method described as the washing operation of one stroke, the dishwasher performs the washing of the dishes by repeating the above washing stroke several times.
이상에서 설명된 바와 같이 본 발명에 의하면 누수발생시 야기되는 문제들을 해결할 수 있게 되어 안전하게 식기세척기를 사용할 수 있게된다.As described above, according to the present invention, it is possible to solve the problems caused when the leakage occurs, it is possible to use the dishwasher safely.
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KR1019930013475A KR0146328B1 (en) | 1993-07-16 | 1993-07-16 | How to control your dishwasher |
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