KR950004268B1 - Washing control method on motor-protector - Google Patents

Washing control method on motor-protector Download PDF

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Publication number
KR950004268B1
KR950004268B1 KR1019920017844A KR920017844A KR950004268B1 KR 950004268 B1 KR950004268 B1 KR 950004268B1 KR 1019920017844 A KR1019920017844 A KR 1019920017844A KR 920017844 A KR920017844 A KR 920017844A KR 950004268 B1 KR950004268 B1 KR 950004268B1
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South Korea
Prior art keywords
motor
protector
washing
time
driving
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KR1019920017844A
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Korean (ko)
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KR940007265A (en
Inventor
정만구
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대우전자주식회사
배순훈
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Priority to KR1019920017844A priority Critical patent/KR950004268B1/en
Publication of KR940007265A publication Critical patent/KR940007265A/en
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Publication of KR950004268B1 publication Critical patent/KR950004268B1/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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
    • 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 
    • D06F33/44—Control of the operating time, e.g. reduction of overall operating time
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/08—Control circuits or arrangements thereof
    • 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
    • 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
    • D06F2103/38—Time, e.g. duration
    • 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
    • D06F2103/44—Current or voltage
    • D06F2103/46—Current or voltage of the motor driving the drum
    • 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
    • D06F2105/56—Remaining operation time; Remaining operational cycles
    • 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

calculating both the amount of a total washing time according to the amount of a laundry with a motor drive detector; determining whether the protector is driven or not through the motor drive detector on receiving a motor drive signal; and calculating the time required until a release of the protector on the motor protector detection and adding the result to the total washing time.

Description

세탁모터 프로텍터(PROTECTOR)작동시 세탁제어방법How to control washing when washing motor protector works

제1도는 본 발명에 따른 세탁기의 내부 개략 구성도.1 is a schematic configuration diagram of a washing machine according to the present invention.

제 2 도는 본 발명의 회로도.2 is a circuit diagram of the present invention.

제3도는 본 발명에 의한 제어방법의 플로우챠트.3 is a flowchart of a control method according to the present invention.

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

1,M : 세탁모터 3 : 홀 센서장치1, M: Washing motor 3: Hall sensor device

10 : 제어부 11 : 모터구동검출부10 control unit 11: motor drive detection unit

12 : 모터구동부 13 : 표시부12: motor drive unit 13: display unit

14 : 키 입력부14: key input unit

본 발명은 세탁기의 세탁모터에 프로텍터(PROTECTOR)가 작동하였을때 이를 검출하여 프로텍터가 해제될때 까지의 시간을 산출함으로써 프로텍터가 해제된 후 층 세탁시간을 보상해 줄 수 있도록 한 세탁모터의 프로텍터 작동시 세탁제어방법에 관한 것이다.The present invention detects when a protector (PROTECTOR) is operated in the washing motor of the washing machine and calculates the time until the protector is released, so that the protector of the washing motor can compensate for the washing time of the floor after the protector is released. It relates to a laundry control method.

최근의 전자식 세탁기는 세탁모터에 프로텍터의 기능을 내장하고 있는바, 이 프로텍터란 세탁모터가 과열되도록 운전될때 내부 모터 코일의 온도가 180℃를 넘게되면 자동으로 전원을 차단시키도록 되어 모터를 보호하는 것으로 상기 모터 코일의 온도가 다시 일정온도로 하강하면 전원을 복귀시켜주도록 된 모터보호 장치이다.Recently, the electric washing machine has a built-in protector function in the washing motor. When the washing motor is operated to overheat, the protector automatically cuts off the power when the temperature of the internal motor coil exceeds 180 ° C. The motor protection device is to restore the power when the temperature of the motor coil is lowered to a certain temperature again.

그러나 상기한 프로텍터를 보유한 세탁모터를 사용하는 세탁기의 경우, 세탁운전 도중에 세탁모터에 프로텍터가 작동되면 이 프로텍터가 자동으로 해제되는 시간동안은 세탁이 진행되지 않음(모터가 회전되지 않는다) 에도 불구하고 마이크로 컴퓨터와 같은 신호처리원에서 결정한 총 세탁시간이 경과되면 세탁을 종료함으로써 원래의 총 세탁시간보다 실질적으로는 짧은 세탁시간 동안 세탁이 진행되므로 세탁효율이 떨어지는 문제점이 발생되었다.However, in the case of a washing machine using a washing motor having the above-mentioned protector, if the protector is operated during the washing operation, the washing machine does not proceed during the time when the protector is automatically released (the motor does not rotate). When the total washing time determined by a signal processing source such as a microcomputer has elapsed, the washing is terminated and the washing efficiency is lowered because the washing proceeds for a substantially shorter washing time than the original washing time.

따라서 본 발명은 상기 문제점을 해결하기 위하여 안출된 것으로, 본 발명의 목적은 세탁도중 세탁모터에 프로텍터가 걸렸을 경우, 프로텍터가 걸려 있던 시간을 총 세탁시간에 추가하여 줌으로써 결국은 초기 실정된 세탁시간동안 세탁이 진행되도록 하여 세탁효율을 높힐 수 있도록 한 세탁모터 프로텍터 작동시 세탁제어방법을 제공함에 있다.Therefore, the present invention has been made to solve the above problems, an object of the present invention is to add a time that the protector was hung to the total washing time when the protector is caught in the washing motor during washing, and eventually during the initial washing time The present invention provides a laundry control method when a laundry motor protector is operated so that washing can be performed to increase washing efficiency.

본 고안의 또 다른 목적은 상기 세탁모터에 프로텍터가 발생했을때 이를 외부로 알려줄 수 있도록 디스플레이 해주는 세탁모터 프로텍터 작동시 세탁제어방법을 제공함에 있다.Still another object of the present invention is to provide a laundry control method when the laundry motor protector operates to display the protector when the protector is generated.

이와같은 목적을 달성하기 위하여 본 발명은 프로텍터 기능이 내장된 세탁모터를 사용하는 전자식 세탁기의 제어방법에 있어서, 모터구동 검출부를 통하여 세탁물의 양을 측정하고 동시에 세탁량에 따른 총 세탁시간을 산출하는 단계와, 모터 구동 신호출력시 모터구동 검출부를 통하여 모터가 구동되고 있는가를 검출하는 단계와, 모터프로텍터 검출시 프로텍터 해제시점까지의 시간을 산출하여 상기 총 세탁시간에 가산하여주는 단계를 구비함을 특징으로 하며, 상기 프로텍터의 해제시킴은 모터로 모터구동 출력신호를 계속적으로 출력하여 프로텍터 해제시 모터의 구동에 의해 모터구동 검출부를 통하여 인식할 수 있도록 함을 특징으로하며, 상기 프로텍터 발생시 프로텍터 발생을 외부로 표시해 주는 것을 특징으로 한다.In order to achieve the above object, the present invention provides a method for controlling an electronic washing machine using a washing motor having a built-in protector function, the method comprising: measuring an amount of laundry through a motor driving detector and simultaneously calculating a total washing time according to the amount of washing; And detecting whether the motor is driven through the motor driving detector when the motor driving signal is output, and calculating the time until the release time of the protector when the motor protector is detected and adding the sum to the total washing time. The releasing of the protector may continuously output a motor driving output signal to the motor so that the motor may be recognized by the motor driving detecting unit by driving the motor when the protector is released. It is characterized by displaying.

이하, 첨부된 도면에 의거하여 본 발명을 설명한다.Hereinafter, the present invention will be described with reference to the accompanying drawings.

제1도는 본 발명이 적용된 세탁기에 내부구성도를 개략적으로 나타낸 것으로, 세탁모터(1) 축(2) 상부에는 3개의 자석으로 구성된 원형자석(8)을 부착하고 공지의 홀센서 장치(3)를 마련하여 상기 모터(1)의 회전으로 상기 원형자석(8)이 회전하게 됨에 따라 홀센서 장치(3)는 일정한 감지기능을 수행하기 된다.1 is a schematic view showing an internal configuration of a washing machine to which the present invention is applied, and a circular magnet 8 consisting of three magnets is attached to an upper part of a washing motor 1 shaft 2 and a known hall sensor device 3. As the circular magnet 8 is rotated by the rotation of the motor 1, the hall sensor device 3 performs a constant sensing function.

또한, 세탁모터(1)의 회전에 따라 기어메카니즘(4)이 구동되어 펄세이터(5)가 회전되는 것이다. 미설명부호 6은 세닥조이며, 7은 내측탱크이다.In addition, as the washing motor 1 rotates, the gear mechanism 4 is driven to rotate the pulsator 5. Reference numeral 6 denotes a shell and 7 is an inner tank.

제2도는 본 발명의 회로도를 나타낸 것으로, 본 발명에 따른 일정 프로그램을 내장한 원칩 마이크로 컴퓨터인 제어부(10)의 입력포트(P1)에는 홀센서 장치(3), 저항(R1-R3), 콘덴서(C1-C2) 및 트랜지스터(Q1)등으로 구성된 모터 구동 검출부(11)가 접속되어 전술한 세탁 모터(1)(M)가 희전하면 그에 연동하여 원형자석(8)이 회전하게 되고 극성이 변화함에 따라 내장된 발진회로 구성에 의해 이를 간접적으로 감지하는 홀센서 장치(3)의 출력단에서는 일정 주파수의 파형이 출력되어 콘덴서(C1) 및 저항(R1)을 거처 트랜지스터(Ql)의 베이스에 인가된다. 따라서 트랜지스터(Ql)의 컬렉터에는 일정펄스가 발생되어 저항(R4)을 통해 제어부(10)의 입력포트(P1)로 입력되며 제어부(10)는 이 신호를 토대로 모터(M)의 구동을 인식한다.2 is a circuit diagram of the present invention, in which the input port P1 of the control unit 10, which is a one-chip microcomputer incorporating a predetermined program according to the present invention, has a hall sensor device 3, resistors R1-R3, and a capacitor. When the motor driving detection unit 11 composed of (C1-C2) and the transistor Q1 is connected and the washing motor 1 (M) described above is engaged, the circular magnet 8 rotates and the polarity changes in association with the washing motor 1 (M). As a result, a waveform of a predetermined frequency is output from the output terminal of the Hall sensor device 3 which indirectly detects the internal oscillation circuit configuration and is applied to the base of the transistor Ql via the capacitor C1 and the resistor R1. . Therefore, a constant pulse is generated in the collector of the transistor Ql and is input to the input port P1 of the controller 10 through the resistor R4. The controller 10 recognizes the driving of the motor M based on this signal. .

또한, 제어부(10)의 출력포트(P2)(P3)에는 저항(R4--R7), 트랜지스터(Q2)(Q3), 트라이액(T C1)(TC2), 콘덴서(C2), 인덕터(L) 및 세탁모터(M)로 구성된 모터 구동부(12)가 접속되어 제어부(10)가 출력포트(P2)로 로우신호를 출력하면, 출력된 로우신호는 저항(R4)을 거쳐 트랜지스터(Q2)를 턴온시키고 동시에 트라이액(TC1)의 게이트 단자에 트리거 신호를 인가하여 트라이액(TC1)을 도통시켜 전원(AC)이 모터(M)에 인가되어 구동되되, 모터(M) 일방향(우회전)으로 회전하며, 출력포트(P2)로 로우신호를 출력하면, 출력된 로우신호는 트랜지스터(Q3)를 턴온시키고 트라이액(TC2)을 도통시켜 전원(AC)이 모터(M)에 인가되어 구동되되, 모터(M)는 타방향(자회전)으로 회전한다.In addition, the output ports P2 and P3 of the controller 10 have resistors R4--R7, transistors Q2 and Q3, triacs T C1 and TC2, capacitor C2, and inductor L. ) And the motor driving unit 12 constituted by the washing motor M are connected to the controller 10 to output a low signal to the output port P2, the output low signal passes through the resistor R4 to the transistor Q2. At the same time, the trigger signal is applied to the gate terminal of the triac TC1 to conduct the triac TC1 so that the power AC is applied and driven by the motor M, and rotates in one direction (right turn) of the motor M. When the low signal is output to the output port P2, the output low signal turns on the transistor Q3 and conducts the triac TC2 so that the power source AC is applied to the motor M to be driven. M rotates in the other direction (self-rotation).

또한, 제어부(10)의 출력포트군(Pnl)에는 표시부(13)가 접속되어 모터(M)의 프로텍터 발생시 제어부(10)가 소정신호를 출력하여 표시부(l3)는 프로텍터 중임을 알리는 특정코드( code) 표시를 디스플레이 하며, 제어부(10)의 입력토군(Pn2)에는 통상의 키입력부(14)가 접속되어 운전시작 등 여러가지 명령을 키입력하여 준다.In addition, the display unit 13 is connected to the output port group Pnl of the control unit 10 so that when the protector of the motor M is generated, the control unit 10 outputs a predetermined signal so that the display unit l3 indicates that the protector is being protected. code) is displayed, and an ordinary key input unit 14 is connected to the input soil group Pn2 of the control unit 10 to key in various commands such as start of operation.

상기와 같이 구성시켜서 된 본 고안의 작용 및 효과를 제3도의 제어흐름도를 통해 설명한다.The operation and effects of the present invention constructed as described above will be described through the control flowchart of FIG. 3.

먼저, 본 고안에 따른 세탁기에 전원이 인가되면, 제어부(10)는 키입력부(14)를 통해 운. 전시작 명령이 입력되는가를 검출하여 운전시작 명령이 검출되면 세탁모터 구동부(12)로 소정출력을 행하여 모터구동 검출부(11)를 통하여 입력되는 신호를 검출함으로써 세탁량을 검출하게 된다.First, when power is applied to the washing machine according to the present invention, the control unit 10 operates through the key input unit 14. When the operation start command is detected by detecting whether the pre-start command is input, the washing amount is detected by performing a predetermined output to the washing motor driver 12 to detect a signal input through the motor drive detection unit 11.

이때 세탁량을 검출하는 방법은 세탁모터(M)의 좌.우 반전을 짧은 주기로 행하여 주되, 모터(M) 관성회전시 모터구동 검출부(11)에서 입력되는 펄스의 숫자를 계수하여 내부 메모리 내에 이미 설정된 값과 비교하여 세탁량을 판별하는 것으로, 세탁량이 많을때에는 모터(M)의 관성회전이 적어지므로 모터구동 검출부(11)에서 검출되는 펄스의 수는 적게되고, 세탁량이 적은 때에는 모터(M)의 관성회전이 많아지므로 모터구동 검출부(1l)에서 검출되는 펄스의 수는 많게 된다.At this time, the method for detecting the washing amount is to perform the left and right inversion of the washing motor (M) in a short cycle, the number of pulses input from the motor drive detection unit 11 during the motor (M) rotation of the inertia is already set in the internal memory The amount of pulses detected by the motor drive detection unit 11 is reduced when the washing amount is large and the inertia rotation of the motor M is small when the washing amount is large, and the inertia of the motor M is small when the washing amount is small. Since the rotation increases, the number of pulses detected by the motor drive detection section 11 becomes large.

따라서 세탁량이 검출되면 세탁량에 따른 총 세탁시간을 산출하며 세탁을 진행하기 위하여 모터구동부(12)로 소정의 출력을 행한다.Therefore, when the washing amount is detected, the total washing time is calculated according to the washing amount, and a predetermined output is output to the motor driving unit 12 to proceed with washing.

이때 모터구동신호가 출력(P2 또는 P3로의 출력)중인가를 판단하여 모터 구동신호 출력중일때 모터구동검출부(11)를 통해 입력되는 펄스신호를 읽어 들이되, 펄스신호가 입력되면 세탁모터(M)의 정상 구동중임을 인식하여 총 세탁시간 동안 통상적인 세탁운전을 진행하나, 세탁모터(M)에 프로텍터가 발생하여 일정펄스 신호가 검출되지 아니하면 표시부(l3)로 모터 프로텍터 특정 코드표시를 출력하고, 내부 타이머에 의해 시간계수를 개시한다. 또한, 모터 구동부(l2)로의 출력을 계속 유지하여 모터구동 검출부(11)를 통해 입력포트(P1)로 다시 일정펄스 신호가 검출되던 표시부(13)로의 출력을 차단하여 프로텍터 해제를 알려주고, 프로텍터가 걸렸던 시간을 산출하여 상기 총 세탁시간에 가산하여 줌으로써 세탁모터(M)가 정상작동 된 이후 실질적으로 초기에 설정된 세탁시간동안 세탁을 진행한 후 종료하게 되는 것이다.At this time, it is determined whether the motor drive signal is being output (output to P2 or P3) and the pulse signal input through the motor drive detection unit 11 is read when the motor drive signal is being output. When the pulse signal is input, the washing motor (M) Recognizes that the drive is in normal operation and proceeds with the normal washing operation for the total washing time, but if a protector occurs in the washing motor (M) and a constant pulse signal is not detected, the motor protector specific code display is output to the display unit (l3). The time count is started by an internal timer. In addition, the output to the motor drive unit l2 is continuously maintained, and the output to the display unit 13 in which a constant pulse signal is detected again through the motor drive detector 11 to the input port P1 is notified to inform the release of the protector. By calculating the time it took to add to the total washing time to the washing motor (M) after the normal operation is to proceed after the washing for a substantially initially set washing time is to end.

이상에서와 같이 본 발명은 세탁모터(M)의 프로텍터 발생시의 경과시간을 총 세탁시간에 보상하여 줌으로써 세탁모터 프로텍터시 발생되는 세탁효율의 저하를 배제할 수 이는 유용한 발명이다.As described above, the present invention compensates the elapsed time of the generation of the protector of the washing motor M to the total washing time, thereby eliminating the deterioration of the washing efficiency generated when the washing motor is protected.

Claims (3)

프로텍터 기능이 내장된 세탁모터를 사용하는 전자식 세탁기의 제어 방법에 있어서, 모터구동 검출부를 통하여 세탁물의 양을 측정하고, 동시에 세탁량에 따른 총 세탁시간을 산출하는 단계와, 모터구동 신호출력시 모터구동 검출부를 통하여 프로텍터 구동되고 있는지를 검출하는 단계와, 모터 프로텍터 검출시 프로텍터 해제시점까지의 시간을 산출하여 상기 총 세탁 시간에 가산하여 주는 단계를 구비함을 특징으로 하는 세탁모터 프로텍터 작동시 세탁제어 방법.A control method of an electronic washing machine using a washing motor with a protector function, the method comprising: measuring an amount of laundry through a motor driving detection unit, calculating a total washing time according to the washing amount, and driving a motor at the time of outputting a motor driving signal Detecting whether the protector is driven through the detection unit, and calculating the time until the protector is released when the motor protector is detected and adding the sum to the total washing time. . 제1항에 있어서, 상기 프로텍터의 해제시점은 모터로 모터구동 출력신호를 계속적으로 출력하여 프로덱터 해제시 모터의 구동에 의해 모터구동 검출부를 통하여 인식할 수 있도록 함을 특징으로 하는 세탁모터 프로텍터 작동시 제어방법.The laundry motor protector of claim 1, wherein the release time of the protector continuously outputs a motor drive output signal to the motor so that the motor may be recognized through a motor drive detector by driving the motor when the protector is released. Control method. 제1항에 있어서, 상기 프로텍터 발생시 프로텍터 발생을 외부로 포시해 주는 것을 특징으로 하는 세탁모터 프로텍터 작동시 제어방법.The method of claim 1, wherein when the protector is generated, the protector generates a protector to the outside.
KR1019920017844A 1992-09-30 1992-09-30 Washing control method on motor-protector KR950004268B1 (en)

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KR950004268B1 true KR950004268B1 (en) 1995-04-28

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