KR970078545A - Driving device of fan of projection television and method thereof - Google Patents

Driving device of fan of projection television and method thereof Download PDF

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Publication number
KR970078545A
KR970078545A KR1019960014479A KR19960014479A KR970078545A KR 970078545 A KR970078545 A KR 970078545A KR 1019960014479 A KR1019960014479 A KR 1019960014479A KR 19960014479 A KR19960014479 A KR 19960014479A KR 970078545 A KR970078545 A KR 970078545A
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KR
South Korea
Prior art keywords
fan
projection television
voltage
current
displaying
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Application number
KR1019960014479A
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Korean (ko)
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KR100224826B1 (en
Inventor
서광석
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김광호
삼성전자 주식회사
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Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019960014479A priority Critical patent/KR100224826B1/en
Publication of KR970078545A publication Critical patent/KR970078545A/en
Application granted granted Critical
Publication of KR100224826B1 publication Critical patent/KR100224826B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/3144—Cooling systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information

Abstract

본 발명은 프로젝션 텔레비젼의 팬의 구동 감지 장치 및 그 방법에 관한 것으로서, 특히 외부 환경에 의한 팬의 정지 및 전원 전압의 변동에 의한 팬의 속도 변화를 감지하는 장치 및 방법에 관한 것이다.The present invention relates to an apparatus and method for sensing the operation of a fan of a projection television, and more particularly, to an apparatus and method for detecting a change in the speed of a fan due to a stop of the fan due to an external environment and a fluctuation of a power source voltage.

본 발명의 목적을 위하여 팬이 정지하거나 저속 회전시 전원의 전류 변동을 감지하여 팬의 회전에 상응되는 전압으로 변환하는 전류 감지부, 상기 전류 감지부에서 출력되는 전압의 크기가 소정의 값인가를 검사하는 제어부, 상기 제어부에서 소정의 전압 값 이상이 검출되면 상기 프로젝션 텔레비젼의 이상 상태를 표시하는 표시부를 포함하는 것을 특징으로 한다.For the purpose of the present invention, there is provided a current sensing unit for sensing a current fluctuation of a power source when the fan stops or rotating at low speed and converting the current into a voltage corresponding to the rotation of the fan, And a display unit for displaying an abnormal state of the projection television when a predetermined voltage value or more is detected by the control unit.

본 발명에 의하면, 프로젝션 텔레비젼 내부의 팬이 정지가 되면 화면상에 과열 경고 문구를 표시함으로서, 사용자가 알기 쉽게 세트 상태나 팬 점검을 하도록 알려줄 수 있는 잇점이 있다.According to the present invention, when the fan inside the projection TV is stopped, an overheat warning phrase is displayed on the screen, so that the user can easily inform the user of the set state or the fan check.

Description

프로젝션 텔레비젼의 팬의 구동 장치 및 그 방법Driving device of fan of projection television and method thereof

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 본 발명에 따른 프로젝션 텔레비젼에 있어서 팬 모터의 구동 감지 장치를 도시한 블럭도이다. 제2도는 본 발명에 따른 프로젝션 텔레비젼에 있어서 팬 모터의 구동 감지 방법을 보이는 플로우챠트이다.FIG. 1 is a block diagram showing a driving motor for a fan motor in a projection television according to the present invention. FIG. 2 is a flow chart showing a method of detecting the driving of a fan motor in a projection television according to the present invention.

Claims (6)

프로젝션 텔레비젼의 전원 오프 후에 내부 온도를 냉각시키는 팬을 구동하는 장치에 있어서, 상기 팬이 정지하거나 저속 회전시 전원의 전류 변동을 감지하여 팬의 회전에 상응되는 전압으로 변환하는 전류 감지부; 상기 전류 감지부에서 출력되는 전압의 크기가 소정의 값인가를 검사하는 제어부; 상기 제어부에서 소정의 전압 값 이상이 검출되면 상기 프로젝션 텔레비젼 이상 상태를 표시하는 표시부를 포함하는 것을 특징으로하는 프로젝션 텔레비젼의 팬 구동 감지 장치.An apparatus for driving a fan for cooling an internal temperature of a projection television after a power is turned off, the apparatus comprising: a current sensing unit for sensing a current fluctuation of a power source when the fan stops or rotating at low speed to convert the voltage into a voltage corresponding to rotation of the fan; A control unit for checking whether the magnitude of the voltage output from the current sensing unit is a predetermined value; And a display unit for displaying the abnormal state of the projection television when a predetermined voltage value or more is detected by the control unit. 제1항에 있어서, 상기 전류 감지부는 입력되는 전류와 저항에 의하여 전압 값을 결정하는 것을 특징으로하는 프로젝션 텔레비젼의 팬 구동 감지 장치.The apparatus of claim 1, wherein the current sensing unit determines a voltage value based on an input current and a resistance. 제1항에 있어서, 상기 표시부는 문자 신호인 것을 특징으로 하는 프로젝션 텔레비젼의 팬 구동 감지 장치.The apparatus of claim 1, wherein the display unit is a character signal. 제3항에 있어서, 상기 문자 신호는 프로젝션 텔레비젼의 화면상에 표시되는 것을 특징으로 하는 프로젝션 텔레비젼의 팬 구동 감지 장치.The apparatus of claim 3, wherein the character signal is displayed on a screen of a projection television. 프로젝션 텔레비젼의 전원 오프 후에 내부 온도를 냉각 시키는 팬을 구동하는 방법에 있어서, 상기 팬에인가되는 전압을 감지하여 소정 값의 전압이 감지되면 정상으로 팬이 동작하는 제1단계; 상기 제1단계에서 팬에 인가되는 전압이 소정의 전압 값 이상이면 상기 팬의 이상 유무를 표시하는 제2단계를 포함하는 것을 특징으로 하는 프로젝션 텔레비젼의 팬 구동 감지 방법.A method of driving a fan for cooling an internal temperature of a projection television after a power is turned off, the method comprising: a first step of detecting a voltage applied to the fan and operating the fan normally when a predetermined voltage is sensed; And if the voltage applied to the fan is greater than or equal to a predetermined voltage value in the first step, displaying the presence or absence of the fan in the second step. 제1항에 있어서, 제2단계는 팬의 상태가 표시되면 팬이 동작하는가를 검사해서 팬이 동작하지 않으면 팬을 교체하라는 신호를 표시하는 것을 특징으로 하는 프로젝션 텔레비젼의 팬 구동 감지 장치.The apparatus of claim 1, wherein the second step comprises the step of checking whether the fan operates when the fan status is displayed, and displaying a signal to change the fan if the fan does not operate. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960014479A 1996-05-03 1996-05-03 Apparatus for driving fan of projection tv and the method KR100224826B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960014479A KR100224826B1 (en) 1996-05-03 1996-05-03 Apparatus for driving fan of projection tv and the method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960014479A KR100224826B1 (en) 1996-05-03 1996-05-03 Apparatus for driving fan of projection tv and the method

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KR970078545A true KR970078545A (en) 1997-12-12
KR100224826B1 KR100224826B1 (en) 1999-10-15

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100476087B1 (en) * 2002-11-05 2005-03-11 삼성전자주식회사 computer system and control method of cooling fan thereof
KR100722440B1 (en) * 2004-12-21 2007-05-28 주식회사 대우일렉트로닉스 Apparatus for controlling fan speed of display goods
KR100747736B1 (en) * 2005-07-13 2007-08-08 주식회사 테스 Fan Operation Monitoring System and Method Thereof
KR100826171B1 (en) * 2002-01-21 2008-04-30 엘지전자 주식회사 Method and apparatus of preventing overheating for projection display

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR910000706B1 (en) * 1987-11-30 1991-01-31 주식회사 금성사 Thermostat of lcd projector luminance apparatus
KR960006874A (en) * 1994-08-30 1996-03-22 이헌조 Vacuum cleaner overload protection device and protection method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100826171B1 (en) * 2002-01-21 2008-04-30 엘지전자 주식회사 Method and apparatus of preventing overheating for projection display
KR100476087B1 (en) * 2002-11-05 2005-03-11 삼성전자주식회사 computer system and control method of cooling fan thereof
KR100722440B1 (en) * 2004-12-21 2007-05-28 주식회사 대우일렉트로닉스 Apparatus for controlling fan speed of display goods
KR100747736B1 (en) * 2005-07-13 2007-08-08 주식회사 테스 Fan Operation Monitoring System and Method Thereof

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KR100224826B1 (en) 1999-10-15

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