KR950014438A - Foreign body detection device of washing machine - Google Patents

Foreign body detection device of washing machine Download PDF

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Publication number
KR950014438A
KR950014438A KR1019930024907A KR930024907A KR950014438A KR 950014438 A KR950014438 A KR 950014438A KR 1019930024907 A KR1019930024907 A KR 1019930024907A KR 930024907 A KR930024907 A KR 930024907A KR 950014438 A KR950014438 A KR 950014438A
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KR
South Korea
Prior art keywords
washing
microcomputer
washing machine
foreign matter
foreign
Prior art date
Application number
KR1019930024907A
Other languages
Korean (ko)
Inventor
심효선
Original Assignee
이헌조
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이헌조, 엘지전자 주식회사 filed Critical 이헌조
Priority to KR1019930024907A priority Critical patent/KR950014438A/en
Publication of KR950014438A publication Critical patent/KR950014438A/en

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Abstract

본 발명은 세탁기의 이물질 감지장치에 관한 것으로, 종래에는 이물질을 감지할 수 없어서 그 이물질이 세탁중에 세탁물을 찢어지게 하거나 세탁날개의 틈새에 끼여 고장을 일으키게 하는 문제점이 있었다. 따라서 종래의 문제점을 해결하기 위하여 본 발명은 압전센서를 이용하여 이물질을 감지하여 이물질이 감지되면 세탁행정을 정지시키도록 함과 아울러 에러메시지를 표시하여 사용자에게 알려주어 세탁물의 찢어짐을 방지하고, 세탁날개의 틈새에 끼이거나 그 밑으로 빠져들어가 고장을 일으키는 원인을 사전에 방지하도록 한다.The present invention relates to a foreign matter detection device of a washing machine, conventionally it has a problem that can not detect the foreign matter to cause the foreign matter to tear the laundry during the washing or to get stuck in the gap of the washing blade causing a failure. Therefore, in order to solve the conventional problems, the present invention detects foreign matters by using a piezoelectric sensor to stop the washing administration when foreign matters are detected and also displays an error message to inform the user to prevent the tearing of the laundry. Try to prevent the cause of a breakdown by being caught or drowned under the gap between the wings.

Description

세탁기의 이물질 감지장치Foreign body detection device of washing machine

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명 세탁기의 이물질 감지장치 회로도.2 is a circuit diagram of a foreign substance detection device of the washing machine of the present invention.

제3도는 제2도에 있어서, 압전센서의 설명도.3 is an explanatory diagram of a piezoelectric sensor in FIG. 2;

제4도는 제2도에 있어서, 각 부의 신호파형도.4 is a signal waveform diagram of each part in FIG.

제5도는 본 발명 세탁기의 이물질 감지방법에 대한 신호 흐름도.5 is a signal flow diagram for a foreign matter detection method of the washing machine of the present invention.

Claims (4)

세탁, 헹굼, 탈수, 세탁시간등 각종 상태를 사용자가 키를 눌러 원하는 세탁행정을 선택하도록 하는 키입력수단과, 상기 키입력수단을 통한 키입력신호에 따라 세탁기의 시스템전체 동작을 제어하는 마이크로컴퓨터와, 입력되는 교류전원(AC)을 일정레벨의 정전압으로 변환시켜 상기 마이크로컴퓨터 및 세탁기의 시스템에 동작전원을 공급하는 전원공급수단과 상기 마이크로컴퓨터의 제어출력에 따라 필요한 부하를 구동시켜 세탁, 헹굼 및 탈수행정을 수행하도록 하기 위한 부하구동수단과, 상기 마이크로컴퓨터의 제어출력에 따라 세탁이나 헹굼, 탈수, 세탁시간등 각종상태를 표시하여 주는 표시수단과 상기 마이크로컴퓨터의 제어출력에 따라 세탁기의 불동작시 또는 기타상황에 대해 경보를 발생시켜 사용자에게 알려주는 부저 구동수단과, 세탁조내에 이물질이 투입되었을 경우 이를 감지하여 상기 마이크로컴퓨터에 전달하는 이물질감지수단으로 구성된 것을 특징으로 하는 세탁기의 이물질 감지장치.Key input means for the user to select a desired washing administration by pressing a key in various states such as washing, rinsing, dehydration and washing time, and a microcomputer for controlling the overall operation of the washing machine according to a key input signal through the key input means. And converts the input AC power into a constant voltage at a predetermined level to drive power required to supply operating power to the systems of the microcomputer and the washing machine, and to drive the necessary load according to the control output of the microcomputer to wash and rinse. And load driving means for performing a dehydration operation, display means for displaying various conditions such as washing, rinsing, dehydration, and washing time according to the control output of the microcomputer, and the washing machine according to the control output of the microcomputer. Buzzer driving means for alerting the user by generating an alarm in operation or other situations; If foreign matter is in the input and detects the foreign matter detection device of the washing machine, it characterized in that the foreign matter detection means is configured to forward to the microcomputer. 제1항에 있어서, 이물질감지수단은 압전센서(P.S)로 이물질의 유무를 감지하도록 함을 특징으로 하는 세탁기의 이물질 감지장치.The foreign material detection apparatus of claim 1, wherein the foreign material detection means detects the presence or absence of the foreign matter with a piezoelectric sensor (P.S). 제2항에 있어서, 압전센서(P.S)는 세탁조의 내부 밑바닥에 부착하도록 함을 특징으로 하는 세탁기의 이물질 감지장치.The foreign material detection apparatus of claim 2, wherein the piezoelectric sensor (P.S) is attached to an inner bottom of the washing tank. 제1항에 있어서, 이물질감지수단은 압전센서(P.S)를통해 발생된 압전압을 일정레벨로 증폭하는 오피앰프(OP1)와, 이 오피앰프(OP1)의 출력신호를 저항(R11)(R10)을 통해 입력받아 마이크로컴퓨터(1)에 이물질의 유무를 전달하는 트랜지스터(Q3)로 구성되어 이루어짐을 특징으로 하는 세탁기의 이물질 감지장치.The foreign material detecting means according to claim 1, wherein the foreign material detecting means includes an op amp (OP1) for amplifying the piezoelectric voltage generated through the piezoelectric sensor (PS) to a predetermined level, and the output signal of the op amp (OP1) is resistor R11 (R10). Foreign body detection device of the washing machine, characterized in that consisting of a transistor (Q3) for receiving the input through the microcomputer (1) to the presence of foreign matter. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930024907A 1993-11-22 1993-11-22 Foreign body detection device of washing machine KR950014438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930024907A KR950014438A (en) 1993-11-22 1993-11-22 Foreign body detection device of washing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930024907A KR950014438A (en) 1993-11-22 1993-11-22 Foreign body detection device of washing machine

Publications (1)

Publication Number Publication Date
KR950014438A true KR950014438A (en) 1995-06-16

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KR1019930024907A KR950014438A (en) 1993-11-22 1993-11-22 Foreign body detection device of washing machine

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100475752B1 (en) * 2002-03-06 2005-03-10 점보실업 주식회사 Pipe for injecting nitrogen of apparatus for welding lead assembly
KR101220214B1 (en) * 2005-08-22 2013-01-09 삼성전자주식회사 Drum type washing machine and method of controlling the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100475752B1 (en) * 2002-03-06 2005-03-10 점보실업 주식회사 Pipe for injecting nitrogen of apparatus for welding lead assembly
KR101220214B1 (en) * 2005-08-22 2013-01-09 삼성전자주식회사 Drum type washing machine and method of controlling the same

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