KR970006592B1 - A dehydrating control method of a washing machine - Google Patents
A dehydrating control method of a washing machine Download PDFInfo
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- KR970006592B1 KR970006592B1 KR1019940006530A KR19940006530A KR970006592B1 KR 970006592 B1 KR970006592 B1 KR 970006592B1 KR 1019940006530 A KR1019940006530 A KR 1019940006530A KR 19940006530 A KR19940006530 A KR 19940006530A KR 970006592 B1 KR970006592 B1 KR 970006592B1
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- dewatering
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Abstract
Description
제1도는 본 발명에 이용되는 개략적인 세탁기의 개략 제어블럭도.1 is a schematic control block diagram of a schematic washing machine used in the present invention.
제2도는 본 발명에 적용되는 탈수제어방법의 플로우챠트.2 is a flowchart of a dehydration control method applied to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
가 : 세탁운전입력부 나 : 수위감지부A: Laundry operation input part B: Water level detection part
다 : 마이콤 라 : 모터감지부C: Mycom la: motor detection unit
마 : 회전수감지부 바 : 표시부E: Speed sensing bar: Display
본 발명은 세탁기의 탈수제어방법에 관한 것으로, 특히 탈수동작시 마이콤의 이상동작으로 인하여 탈수회전수가 급격히 상승할 경우, 탈수동작이 이루어지지 않도록 한 세탁기의 탈수제어방법에 관한 것이다.The present invention relates to a dehydration control method of a washing machine, and more particularly, to a dehydration control method of a washing machine so that the dehydration operation is not performed when the dehydration rotation speed rises sharply due to an abnormal operation of the microcomputer during the dehydration operation.
일반적으로 세탁기의 경우, 탈수시 수위센서로 물 빠짐을 감지하면서 동기모터를 동작시켜 본탈수를 하도록 되어 있다.In general, in the case of a washing machine, the dehydration is performed by operating a synchronous motor while detecting water drainage by a water level sensor during dehydration.
그러나 상기 탈수시 탈수제어부가 외부적인 요인은 과전압 또는 노이즈로 인하여 이상동작을 하게 될 경우, 탈수모터의 회전수가 급격히 증가하게 되어 갑작스런 회전수 증가로 인하여 진동소음을 일으키게 되는 가하면, 심지어는 탈수제어부의 고장을 일으키게 되어 탈수를 할 수 없게 되는 문제점을 가지게 되었다.However, when the dehydration control unit causes abnormal operation due to overvoltage or noise, the dehydration motor may suddenly increase the rotational speed of the dehydration control unit, causing vibration noise due to a sudden increase in the rotational speed. It causes a problem that can not be dehydrated.
따라서 본 발명의 목적은 탈수시 탈수모터의 회전수를 감지하여 감지되는 회전수가 급격히 증가하게 될 경우, 탈수가 되지 않도록 동기모터의 구동을 정지하여 갑작스런 회전수증가로 인하여 야기되는 진동은 물론 탈수제어부의 고장을 사전에 방지하는데 있다.Therefore, the object of the present invention is to detect the rotational speed of the dehydration motor during dehydration, if the detected rotational speed increases sharply, stop the driving of the synchronous motor so as not to dewatering, as well as vibration caused by the sudden increase in rotational speed of the dehydration control unit To prevent failures in advance.
상기의 목적을 실현하기 위하여 본 발명은 탈수시 구동하는 탈수모터의 회전수를 감지하는 단계와, 상기 단계에서 감지된 회전수가 소정의 탈수회전수 범위인가를 판단하는 단계와, 상기 단계에서 판단결과 감지된 회전수가 소정의 탈수회전수 범위이면 정상탈수동작을 수행하는 단계와, 상기 단계에서 판단결과 감지된 회전수가 소정의 탈수회전수 범위가 아니면 무부하 상태의 회전수보다 큰가를 판단하는 단계와, 상기 단계에서 판단결과 감지된 회전수가 무부하시 회전수보다 크지 않으면, 탈수모터의 회전수를 감지하고, 상기 무부하시 회전수보다 크면, 동기모터를 오프하여 탈수정지 및 경보하는 단계로 이루어짐을 특징으로 한다.In order to achieve the above object, the present invention provides a method for detecting a rotational speed of a dewatering motor that is driven during dehydration, determining whether the rotational speed detected in the step is within a predetermined rotational speed range, and determining the result at the step. Performing a normal dehydration operation if the detected rotation speed is within a predetermined dehydration speed range, and determining whether the detected rotation speed is greater than the rotation speed in a no-load state if the detected rotation speed is not within the predetermined dewatering speed range; If the rotation speed detected as a result of the determination in the step is not greater than the no-load speed, the rotation speed of the dewatering motor is detected, if the greater than the no-load speed, characterized in that the step of turning off the synchronous motor to stop dehydration and alarm do.
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 이용하는 세탁기의 제어블럭도로서, 세탁운전에 대한 신호를 입력하는 세탁운전입력부(가)와, 세탁시 급수 및 배수되는 세탁조의 수위를 감지하는 수위감지부(나)와, 상기 세탁운전입력부(가)와 수위감지부(나)에서 입력되는 신호에 대하여 소정의 프로그램에 의하여 제어하고 제어된 신호를 출력하는 마이콤(다)과, 상기 마이콤(다)에서 출력되는 신호에 의하여 세탁 및 탈수구동을 하는 모터구동부(라)와, 상기 모터구동부(라)의 모터의 회전수를 감지하는 회전수감지부(마)와, 상기 모터구동부(라)의 이상발생시 에러 및 경보를 표시하는 표시부(바)로 구성하여서 된 것이다.1 is a control block diagram of a washing machine used in the present invention, the washing operation input unit (A) for inputting a signal for the washing operation, the water level sensing unit (B) for detecting the water level of the water supply and drainage during washing; The microcomputer (C) controlling the signal input from the laundry driving input unit (A) and the water level sensing unit (B) and outputting a controlled signal, and the signal output from the microcomputer (C) The motor driving unit (D) for washing and dehydrating driving, the rotation speed detecting unit (D) for detecting the rotational speed of the motor of the motor driving unit (D), and the error and alarm when an abnormality occurs in the motor driving unit (D) It consists of the display part (bar).
제2도는 본 발명에 적용되는 탈수제어방법의 플로우챠트로서, 세탁기의 탈수제어방법에 있어서, 탈수운전시 탈수모터를 구동하는 탈수구동단계(20)와, 상기 탈수구동단계(20)에서 탈수구동하는 탈수모터의 회전수를 감지하는 탈수모터회전수감지단계(21)와, 상기 탈수모터회전수감지단계(21)에서 감지된 회전수가 소정의 탈수 회전수 범위인가를 판단하는 탈수회전수판단단계(22)와, 상기 탈수회전수판단단계(22)에서 판단결과 감지된 회전수가 소정의 탈수회전수 범위이면 정상탈수동작을 수행하는 정상탈수단계(23)와, 상기 탈수회전수판단단계(22)에서 판단결과 감지된 회전수가 소정의 탈수회전수 범위가 아니면 무부하 상태의 회전수와 같거나, 이상인가를 판단하는 무부하회전수판단단계(24)와, 상기 무부하회전수판단단계(24)의 판단결과 감지된 회전수가 무부하시 회전수가 아니면 탈수모터의 회전수를 감지하고, 상기 감지된 회전수가 무부하시 회전수이면 동기모터를 오프하여 탈수정지 및 에러를 경보하는 탈수정지경보단계(25)로 이루어지도록 한것이다.2 is a flowchart of a dehydration control method applied to the present invention, in the dehydration control method of a washing machine, a dehydration driving step 20 for driving a dehydration motor during a dehydration operation, and a dehydration driving step in the dehydration driving step 20. Dehydration motor speed detection step 21 for detecting the rotational speed of the dewatering motor to determine the dehydration motor speed determination step for determining whether the rotation speed detected in the dewatering motor speed detection step 21 is a predetermined dehydration speed range (22), a normal dehydration step 23 for performing a normal dehydration operation if the rotation speed detected as a result of the determination in the dehydration speed determining step 22 is a predetermined dehydration speed range, and the dehydration speed determining step 22 In the non-load speed determination step 24 and the no-load speed determination step 24 for determining whether or not the detected speed is equal to or equal to the speed of the no-load state if the detected speed is not within the predetermined dehydration speed range. Judgments detected The number of the rotation speed with no load, or almost certainly have to consist of a detecting the rotational speed of the dehydrating motor, and wherein if the number of the detected rotation number of revolutions without load by turning off the synchronous motor to alert the dehydration stop and error dehydration stop alarm stage (25).
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, 세탁기에 전원을 인가한 상태에서 세탁운전입력부(가)를 통해서 세탁운전신호가 입력되면, 상기 마이콤(마)에서는 소정의 프로그램에 의하여 수위감지부(나), 모터구동부(라)를 제어하면서 일련의 세탁행정을 진행하게 된다.First, when a washing driving signal is input through the washing driving input unit (A) while power is supplied to the washing machine, the microcomputer (e) controls the water level detecting unit (B) and the motor driving unit (D) by a predetermined program. A series of laundry administrations will be conducted.
이와 같이 세탁행정이 완료되면 소정의 프로그램에 의하여 탈수행정에 들어가게 되는데, 이때 상기 마이콤(다)에서는 탈수구동단계(20)로 가서 수위감지부(나)를 통해서 배수되는 세탁조의 수위를 감지함과 아울러, 모터구동부(라)의 동기모터를 작동시켜 탈수를 진행하게 된다.When the washing administration is completed as described above, the dehydration administration is entered by a predetermined program. At this time, the microcomputer (C) detects the level of the washing tank drained through the water level sensing unit (B) by going to the dehydration driving stage (20). In addition, dehydration is performed by operating the synchronous motor of the motor driving unit (D).
이와 같이 탈수가 진행되면 상기 마이콤(다)에서는 탈수모터회전수감지단계(21)로 가서 탈수진행 중인 탈수모터의 회전수를 회전수감지부(마)를 통해서 감지하여 상기 마이콤(다)에 입력시키게 된다.When the dehydration proceeds as described above, the microcomputer (C) goes to the dehydration motor speed detection step 21 to detect the rotation speed of the dewatering motor that is undergoing dehydration through the rotation speed detection unit E and input the microcomputer to the microcomputer C. do.
따라서 상기 마이콤(다)에서는 감지되어 입력되는 회전수에 대하여 탈수회전수판단단계(22)로 가서 기설정된 탈수범위의 회전수 인기를 판단하게 되고, 판단결과 감지된 회전수가 기설정된 탈수범위의 회전수이면 상기 마이콤(다)에서는 정상탈수단계(23)로 가서 정상탈수를 진행하게 된다.Therefore, the microcomputer (C) goes to the dehydration speed determination step 22 with respect to the detected rotation speed and determines the popularity of the rotation speed of the preset dehydration range, and the result of the determination determines the rotation of the rotation of the preset dehydration range. If the number is the microcomputer (C) is to go to the normal dehydration step 23 to proceed with normal dehydration.
한편, 상기 마이콤(다)에서는 상기 탈수회전수판단단계(22)로 가서 감지된 회전수가 기설정된 탈수범위의 회전수가 아니면, 상기 마이콤(다)에서는 무부하회전수판단단계(24)로 가서 상기 회전수감지부(마)에서 감지된 회전수가 무부하시 회전수와 같거나, 이상인가를 판단하게 되고, 이때 판단결과 감지된 회전수가 무부하시 회전수와 같거나, 이상이 아니면 상기 마이콤(다)에서는 탈수모터회전수감지단계(21)로 부터 반복수행하게 되고, 상기 무부하회전수판단단계(24)에서 감지된 회전수가 무부하시 회전수와 같거나, 이상이 되면 상기 마이콤(다)에서는 탈수정지경보단계(25)로 가서 모터구동부(라)를 제어하여 동기모터의 구동을 중지시켜, 탈수운전을 정지함과 아울러 표시부(바)를 제어하여 탈수모터의 이상이 있음을 경보하게 된다.On the other hand, in the microcomputer (C) go to the dehydration speed determination step 22, if the detected rotation speed is not the number of rotation of the preset dehydration range, the microcomputer (C) goes to the no-load speed determination step 24, the rotation It is determined whether the number of revolutions detected by the sensing unit (e) is equal to or higher than the no-load speed, and at this time, if the detected number of revolutions is equal to the no-load speed or not abnormal, the microcomputer (C) dehydrates. Repeatedly performed from the motor rotation speed detection step 21, and if the rotation speed detected in the no-load speed determination step 24 is equal to or higher than the no-load speed, the microcomputer (C) dehydration stop alarm step Go to (25) to control the motor drive unit (D) to stop the drive of the synchronous motor, stop the dehydration operation, and control the display unit (bar) to alert that there is an abnormality of the dewatering motor.
이상에서 설명한 바와 같이 본 발명은 탈수운전시 탈수모터의 회전수를 감지하고 이 감지된 회전수가 탈수제어부의 이상동작으로 인하여 급격히 증가하였을 경우, 동기모터의 동작을 정지시켜 탈수를 정지하도록 함으로써, 상기 탈수모터의 급격한 회전수증가로 인하여 발생되는 진동소음을 방지함과 아울러, 탈수제어부의 고장을 사전에 방지할 수 있는 효과를 제공하게 되는 것이다.As described above, the present invention senses the rotational speed of the dehydration motor during the dehydration operation, and if the detected rotational speed increases rapidly due to an abnormal operation of the dehydration control unit, by stopping the operation of the synchronous motor to stop the dehydration, In addition to preventing vibration noise generated by the rapid increase in the number of rotation of the dehydration motor, it is to provide an effect that can prevent the failure of the dehydration control unit in advance.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940006530A KR970006592B1 (en) | 1994-03-30 | 1994-03-30 | A dehydrating control method of a washing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940006530A KR970006592B1 (en) | 1994-03-30 | 1994-03-30 | A dehydrating control method of a washing machine |
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| Publication Number | Publication Date |
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| KR970006592B1 true KR970006592B1 (en) | 1997-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1019940006530A KR970006592B1 (en) | 1994-03-30 | 1994-03-30 | A dehydrating control method of a washing machine |
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| KR (1) | KR970006592B1 (en) |
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