KR20020011777A - Power motor control method of washing machines - Google Patents

Power motor control method of washing machines Download PDF

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Publication number
KR20020011777A
KR20020011777A KR1020000045301A KR20000045301A KR20020011777A KR 20020011777 A KR20020011777 A KR 20020011777A KR 1020000045301 A KR1020000045301 A KR 1020000045301A KR 20000045301 A KR20000045301 A KR 20000045301A KR 20020011777 A KR20020011777 A KR 20020011777A
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KR
South Korea
Prior art keywords
temperature
motor
washing
driving motor
outputting
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KR1020000045301A
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Korean (ko)
Inventor
김재방
Original Assignee
전주범
대우전자주식회사
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Priority to KR1020000045301A priority Critical patent/KR20020011777A/en
Publication of KR20020011777A publication Critical patent/KR20020011777A/en

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Classifications

    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/26—Condition of the drying air, e.g. air humidity or temperature
    • 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
    • D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
    • 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
    • D06F2103/28—Air properties
    • D06F2103/32—Temperature
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting

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

Abstract

PURPOSE: A method for controlling a driving motor in a washer is provided to prevent sudden overheat of a driving motor generated in washing and to maintain operation of the washer. CONSTITUTION: A method for controlling a driving motor of a washing machine comprises a first stage(S11) outputting first temperature by sensing temperature of a motor through a microcomputer; a second stage(S12) deciding passing time after operating a washer through the microcomputer; a third stage(S13) outputting second temperature by sensing the temperature of the motor after passing specific time; a forth stage(S14) predicting motor temperature after finishing washing; and a fifth stage(S15) comparing predicted motor temperature with an established temperature. The program is finished while the established value is smaller than the motor temperature. Thereby, the method for controlling the driving motor of the washer prevents sudden overheat of the driving motor generated in washing process.

Description

세탁기의 구동모터 제어방법{POWER MOTOR CONTROL METHOD OF WASHING MACHINES}POWER MOTOR CONTROL METHOD OF WASHING MACHINES}

본 발명은 세탁기의 구동모터 제어방법에 관한 것으로, 특히 세탁기가 세탁이나 헹굼 및 탈수시 세탁물의 꼬임이나 편심등의 외부적인 원인에 의하여 구동모터의 과부하로 과열을 방지하는 세탁기 구동모터 제어방법에 관한 것이다.The present invention relates to a control method of a driving motor of a washing machine, and more particularly, to a washing machine driving motor control method of preventing overheating of a driving motor due to an external cause such as twisting or eccentricity of laundry when washing or rinsing and dehydrating the washing machine. will be.

일반적으로, 세탁기는 일련의 세탁행정인 세탁, 헹굼, 탈수행정 모두가 구동모터에 의하여 정,역회전 및 고속회전하게 되고, 정역회전과 고속회전시에는 구동모터는 설정부하보다 큰 과부하가 발생가능하다.In general, a washing machine is a washing, rinsing, and dehydration of a series of washing operations, all the forward, reverse and high speed rotation by the drive motor, the drive motor may generate a greater overload than the set load during forward and reverse rotation. Do.

상기 구동모터에 과부하가 발생되는 경우를 위하여 종래에는 과열방지기가 설치되어 있고, 과열방지기는 세탁기의 마이컴과 연결되어 구동모터의 제어를 실행하게 된다.In order to generate an overload in the drive motor, an overheat protector is conventionally installed, and the overheat protector is connected to the microcomputer of the washing machine to control the drive motor.

상기 과열방지기가 설치된 세탁기의 구동모터에 과부하가 가해지므로 기준치 이상으로 온도가 상승하는 경우에는 상기 과열방지기는 구동모터의 작동을 정지시키게 되어 세탁과정이 중지된다.Since the overload is applied to the drive motor of the washing machine in which the overheat protector is installed, when the temperature rises above the reference value, the overheat protector stops the operation of the drive motor and the washing process is stopped.

그러나, 상기 세탁이 중지되어 재가동이 되기까지는 구동모터의 발열에 의한 온도저하시간까지 기다리게 되므로 세탁을 방치하게 되고, 과열의 반복으로 인하여 구동모터의 수명은 단축되며 손상되어 세탁기의 고장원인이 되는 문제점이 있었다.However, until the washing is stopped and restarted, the washing machine waits until the temperature decrease time due to the heat generation of the driving motor, and the washing is left unattended. Due to the repetition of overheating, the life of the driving motor is shortened and damaged, causing a failure of the washing machine. There was this.

본 발명은 상기와 같은 문제점을 감안하여 안출된 것으로, 세탁기에 과부하나 외부요인에 의하여 구동모터가 과열되는 것을 방지하여 구동모터의 수명을 연장할 수 있는 세탁기 구동모터의 제어방법에 관한 것이다.The present invention has been made in view of the above problems, and relates to a control method of a washing machine driving motor which can prolong the life of the driving motor by preventing the driving motor from overheating due to an overload or an external factor in the washing machine.

상기와 같은 기술적과제는, a) 세탁 행정을 실행하는 단계; b) 세탁 행정 시작 후 현재 모터의 온도를 감지하여 제1 온도를 출력하는 단계; c) 상기 b) 단계의 실행 후 소정 시간이 경과하였는 지를 판단하는 단계; d) 상기 c) 단계에서 세탁 행정 시작 후 소정 시간이 경과하였다고 판단되면 소정 시간이 경과된 현재의 모터 온도를 감지하여 제2 온도를 출력하는 단계; e) 상기 b)단계의 제1 온도와 d)단계의 제2 온도로 부터 세탁 행정의 종료후 모터의 온도를 연산하여 제3 온도를 출력하는 단계; 및 f) 상기 e)단계의 제3 온도와 설정치를 비교하여 제3 온도가 설정치 보다 작은 경우 본 프로그램을 종료하고, 제3 온도가 설정치 보다 큰 경우 모터의 온 및 오프중 하나를 실행한 후 상기 b)단계로 진행하는 단계로 이루어지는 세탁기의 구동모터 제어방법을 제공하므로 달성된다.Technical problem as described above, a) performing a washing stroke; b) sensing the current temperature of the motor after outputting the washing stroke and outputting a first temperature; c) determining whether a predetermined time has elapsed after executing step b); d) if it is determined in step c) that a predetermined time has elapsed since the start of the washing stroke, detecting a current motor temperature after a predetermined time and outputting a second temperature; e) outputting a third temperature by calculating the temperature of the motor after the end of the washing stroke from the first temperature of step b) and the second temperature of step d); And f) terminating the present program when the third temperature is smaller than the set value by comparing the third temperature with the set value of step e), and executing one of on and off of the motor after the third temperature is greater than the set value. It is achieved by providing a drive motor control method of a washing machine consisting of a step proceeding to step b).

도 1은 본 발명이 적용가능한 세탁기의 측단면도,1 is a side cross-sectional view of a washing machine to which the present invention is applicable;

도 2는 본 발명에 따른 세탁기의 제어블럭도,2 is a control block diagram of a washing machine according to the present invention;

도 3은 본 발명에 따른 온도 제어 과정을 설명하기 위한 플로우차트.3 is a flowchart illustrating a temperature control process according to the present invention.

이하, 상기 구성에 따른 작용을 참조 도면에 의거하여 설명하면 다음과 같다.Hereinafter, the operation according to the above configuration will be described with reference to the accompanying drawings.

도 1은 본 발명에 적용되는 세탁기의 개략적인 단면도로서, 일련의 세탁행정시 급수되는 세탁수를 저수하는 저수조(1)와, 저수조(1)의 내측에 세탁물을 세탁/헹굼/탈수하는 세탁조(2)와, 상기 세탁조(2)의 내측 저면에 설치되어 회전물살을 형성하기 위한 펄세이터(3)와, 상기 저수조(1) 저면에 설치되어 상기 세탁조(2)와 저수조(1)를 구동시키는 모터(5)와, 상기 모터(5)의 회전력을 상기 세탁조(2)와 상기 펄세이터(3)에 전달하기 위한 감속기어부(4)와, 상기 저수조(1)의 수위를 감지하기 위한 수위감지기(6)와, 상기 모터(5)의 일측에 설치되어 과열을 감지하는 온도감지기(7) 등이 설치된다.1 is a schematic cross-sectional view of a washing machine applied to the present invention, a storage tank (1) for storing the water to be supplied during a series of washing administrations, and a washing tank for washing / rinsing / dehydrating laundry inside the storage tank (1). 2), a pulsator (3) installed on the inner bottom of the washing tank (2) to form rotating water, and installed on the bottom of the reservoir (1) to drive the washing tank (2) and the storage tank (1). Water level sensor for sensing the water level of the motor 5, the reduction gear unit 4 for transmitting the rotational force of the motor 5 to the washing tank 2 and the pulsator 3, 6 and a temperature sensor 7 installed on one side of the motor 5 to detect overheating is installed.

도 2는 본 발명에 따른 세탁기의 제어블럭도로서, 상기 세탁행정시 세탁운전신호를 입력하는 키패널(10)과, 상기 키패널(10)에서 입력된 운전신호에 대하여 기설정된 소정의 프로그램에 따라 제어하여 신호를 출력하는 마이컴(20)과, 상기 마이컴(20)의 제어신호에 의하여 세탁수를 급배수하기 위한 급배수 작동부(30)와, 상기 급배수 작동부(30)에 따라 공급 및 배수되는 수위를 감지하는 수위감지부(40)와, 상기 마이컴(20)의 제어신호에 따라 정역회전 및 고속회전을 하여 일련의 세탁행정을 실행하는 모터구동부(50)와, 상기 마이컴(20)의 제어신호에 의하여 모터의 과열을 감지하기 위한 모터과열감지부(60)로 구성된다.2 is a control block diagram of a washing machine according to the present invention, which includes a key panel 10 for inputting a washing operation signal during the washing operation, and a predetermined program preset for the driving signal input from the key panel 10. It is supplied according to the microcomputer 20 to control and output a signal, the water supply and drain operation unit 30 for supplying and draining the wash water by the control signal of the microcomputer 20, and the water supply and drain operation unit 30 And a water level detecting unit 40 for detecting the water level to be drained, a motor driving unit 50 for performing a series of washing strokes by performing forward and reverse rotation and high speed rotation according to the control signal of the microcomputer 20, and the microcomputer 20. Motor overheat detection unit 60 for sensing the overheat of the motor by the control signal of the).

도 3은 도 1 및 도 2에 기초한 세탁기의 구동모터 제어방법에 따른 온도 제어 과정을 설명하기 위한 플로우차트이다. 본 발명에 따른 세탁기의 온도 제어 과정을 설명한다.3 is a flowchart for describing a temperature control process according to a method of controlling a driving motor of a washing machine based on FIGS. 1 and 2. The temperature control process of the washing machine according to the present invention will be described.

먼저, 세탁을 하기 위하여 세탁기에 전원을 인가하고 이어서 세탁하고자 하는 세탁물을 세탁조(2)에 넣은 후 상기 세탁기 키패널(10)을 이용하여 세탁 행정인 세탁, 헹굼 및 탈수 행정에 따른 운전신호를 입력한다.First, power is supplied to the washing machine to wash the laundry, and then the laundry to be washed is put in the washing tank 2, and the driving signal according to the washing, rinsing, and dehydrating strokes of the washing stroke is input using the washing machine key panel 10. do.

상기의 마이컴(20)에서는 키패널(10)에 의해 설정된 프로그램에 따라 세탁조(2)의 내에 물을 공급한 후 세탁 동작을 실행한다(단계(S10)).In the microcomputer 20, water is supplied into the washing tub 2 according to a program set by the key panel 10, and then the washing operation is executed (step S10).

상기의 세탁 동작의 실행 도중에 마이컴(20)은 현재 모터의 온도를 감지하여 제1 온도(T1)를 출력한다(단계(S11)), 이 제1 온도를 받은 마이컴(20)은 세탁 동작 시작 후 소정 시간이 경과하였는 지를 판단하고(단계(S12)), 여기서, 소정 시간이 경과하였다고 판단되면 소정 시간이 경과된 후의 모터의 온도를 감지한 후 제2 온도(T2)를 출력한다(단계(S13)).During the execution of the washing operation, the microcomputer 20 senses the current temperature of the motor and outputs the first temperature T1 (step S11). After receiving the first temperature, the microcomputer 20 receives the washing temperature after starting the washing operation. It is determined whether the predetermined time has elapsed (step S12), and if it is determined that the predetermined time has elapsed, the second temperature T2 is output after sensing the temperature of the motor after the predetermined time has elapsed (step S13). )).

상기 제1 온도(T1) 및 제2 온도(T2)를 받은 마이컴(20)은 상기 제1 온도(T1) 및 제2 온도(T2)로부터 세탁 종료시 모터 온도(T3)를 예측한다(단계(S14)). 그리고, 상기 세탁 종료시 모터 온도(T3)의 예측이 완료되면, 이 예측된 모터 온도(T3)와 마이컴(20)에 미리 설정된 소정치(T0)와 비교하고(단계(S15)), 여기서, 소정치(T0)가 모터 온도(T3)보다 작다고 판단되면, 본 프로그램을 종료한다.The microcomputer 20 having received the first temperature T1 and the second temperature T2 predicts the motor temperature T3 at the end of washing from the first temperature T1 and the second temperature T2 (step S14). )). When the prediction of the motor temperature T3 at the end of the washing is completed, the predicted motor temperature T3 is compared with the predetermined value T0 set in advance in the microcomputer 20 (step S15), where If it is determined that the stationary T0 is smaller than the motor temperature T3, the program is terminated.

그러나, 상기 소정치(T0)가 모터 온도(T3) 보다 크다고 판단되면, 마이컴(20)은 현재 회전중인 모터의 온/오프를 제어하여 이 소정치(T0)가 모터 온도(T3)보다 크지 않도록 제어한 후 상기 단계(S11)로 진행한다.However, if it is determined that the predetermined value T0 is greater than the motor temperature T3, the microcomputer 20 controls the on / off of the currently rotating motor so that the predetermined value T0 is not greater than the motor temperature T3. After the control, the process proceeds to the step S11.

본 발명의 세탁기 구동모터 제어방법은, 세탁시 발생되는 구동모터의 급격한 과열을 방지하여 세탁기의 작동을 유지할 수 있으며 세탁기의 수명을 연장할 수 있는 효과가 있다.Washing machine drive motor control method of the present invention, it is possible to prevent the rapid overheating of the drive motor generated during washing to maintain the operation of the washing machine and has the effect of extending the life of the washing machine.

Claims (2)

a) 세탁 행정을 실행하는 단계;a) performing a laundry stroke; b) 세탁 행정 시작 후 현재 모터의 온도를 감지하여 제1 온도를 출력하는 단계;b) sensing the current temperature of the motor after outputting the washing stroke and outputting a first temperature; c) 상기 b) 단계의 실행 후 소정 시간이 경과하였는 지를 판단하는 단계;c) determining whether a predetermined time has elapsed after executing step b); d) 상기 c) 단계에서 세탁 행정 시작 후 소정 시간이 경과하였다고 판단되면 소정 시간이 경과된 현재의 모터 온도를 감지하여 제2 온도를 출력하는 단계;d) if it is determined in step c) that a predetermined time has elapsed since the start of the washing stroke, detecting a current motor temperature after a predetermined time and outputting a second temperature; e) 상기 b)단계의 제1 온도와 d)단계의 제2 온도로 부터 세탁 행정의 종료후 모터의 온도를 연산하여 제3 온도를 출력하는 단계; 및e) outputting a third temperature by calculating the temperature of the motor after the end of the washing stroke from the first temperature of step b) and the second temperature of step d); And f) 상기 e)단계의 제3 온도와 설정치를 비교하여 제3 온도가 설정치 보다 작은 경우 본 프로그램을 종료하고, 제3 온도가 설정치 보다 큰 경우 모터의 온 및 오프중 하나를 실행한 후 상기 b)단계로 진행하는 단계로 이루어지는 것을 특징으로 하는 세탁기의 구동모터 제어방법.f) comparing the third temperature with the set value of step e) and ending the program if the third temperature is lower than the set value, and executing one of on and off of the motor if the third temperature is larger than the set value, and then b. Driving motor control method of a washing machine comprising the step of proceeding to step). 제1항에 있어서, 상기 c)단계의 소정치는 세탁 행정 시간과 세탁 행정 종료 시간 사이의 시간으로 설정되는 것을 특징으로 하는 세탁기의 구동모터 제어방법.The method of claim 1, wherein the predetermined value of step c) is set to a time between a washing stroke time and a washing stroke end time.
KR1020000045301A 2000-08-04 2000-08-04 Power motor control method of washing machines KR20020011777A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108396507A (en) * 2017-02-08 2018-08-14 东芝生活电器株式会社 Washing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108396507A (en) * 2017-02-08 2018-08-14 东芝生活电器株式会社 Washing machine

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