KR0138973Y1 - Anti-static electricity of cathode ray tube - Google Patents

Anti-static electricity of cathode ray tube Download PDF

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Publication number
KR0138973Y1
KR0138973Y1 KR2019950025892U KR19950025892U KR0138973Y1 KR 0138973 Y1 KR0138973 Y1 KR 0138973Y1 KR 2019950025892 U KR2019950025892 U KR 2019950025892U KR 19950025892 U KR19950025892 U KR 19950025892U KR 0138973 Y1 KR0138973 Y1 KR 0138973Y1
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KR
South Korea
Prior art keywords
cathode ray
ray tube
static electricity
conductive film
outer conductive
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Application number
KR2019950025892U
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Korean (ko)
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KR970015274U (en
Inventor
김원범
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배순훈
대우전자주식회사
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Priority to KR2019950025892U priority Critical patent/KR0138973Y1/en
Publication of KR970015274U publication Critical patent/KR970015274U/en
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Publication of KR0138973Y1 publication Critical patent/KR0138973Y1/en

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/86Vessels; Containers; Vacuum locks
    • H01J29/867Means associated with the outside of the vessel for shielding, e.g. magnetic shields
    • H01J29/868Screens covering the input or output face of the vessel, e.g. transparent anti-static coatings, X-ray absorbing layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00Details of cathode ray tubes or electron beam tubes
    • H01J2229/863Passive shielding means associated with the vessel
    • H01J2229/8635Antistatic shielding

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  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

본 고안은 음극선관의 전원오프시 그 내부 및 외부 도전막 사이에 충전된 전하를 신속히 방전소멸시켜 인체가 정전기에 노출되는 것을 방지함은 물론, 화면상에 나타나는 스폿을 제거하는 정전기를 방지하는 음극선관에 관한 것으로, 음극선관(11)의 외부 도전막(15)에 다수의 도체(16)를 방사상으로 부착하여 전원의 오프시 내부 도전막(14) 및 외부 도전막(15)사이에 충전된 전하를 방전시키도록 구성한 것이다.The present invention prevents the human body from being exposed to static electricity by quickly discharging the charges charged between the internal and external conductive layers when the cathode ray tube is powered off, and also prevents static electricity from removing spots on the screen. In the tube, a plurality of conductors 16 are radially attached to the outer conductive film 15 of the cathode ray tube 11 and filled between the inner conductive film 14 and the outer conductive film 15 when the power is turned off. It is configured to discharge the charge.

Description

정전기를 방지하는 음극선관Anti-static cathode ray tube

제1도는 종래 음극선관의 일부분을 절단한 측면도.1 is a side view of a portion of a conventional cathode ray tube cut.

제2도는 종래 음극선관의 요부 회로도.2 is a main circuit diagram of a conventional cathode ray tube.

제3도는 본 고안에 의한 음극선관의 배면도이다.3 is a rear view of the cathode ray tube according to the present invention.

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

11 : 음극선관 13 : 편향요크11 cathode ray tube 13 deflection yoke

14 : 내부 도전막 15 : 외부 도전막14: internal conductive film 15: external conductive film

본 고안은 음극선관에 관한 것으로, 상세하게는 음극선관의 외부 도전막 둘레면에 전도율이 양호한 도체를 부착하여 음극선관의 전원오프시 그 내,외부 도전막 사이에 충전된 전하를 신속히 방전시킴으로써 인체가 정전기에 노출되는 것을 방지함은 물론, 화면상에 나타나는 스폿(spot)을 제거하도록 구성한 정전기를 방지하는 음극선관에 관한 것이다.The present invention relates to a cathode ray tube, and in detail, a conductor having good conductivity is attached to a peripheral surface of the cathode ray tube to quickly discharge electric charges charged between the inner and outer conductive layers when the cathode ray tube is turned off. The present invention relates to a cathode ray tube which prevents static electricity from being exposed to static electricity, as well as configured to remove spots on the screen.

일반적으로 음극선관은 제1도 및 제2도에 도시한 바와 같이, 그 내부 및 외부 표면에 내부 및 외부 도전막(14)(15)이 각각 도포되어 있고, 이와 함께 음극선관의 일측에는 수십 킬로볼트의 고압전원이 인가되는 애노드 캡(12)이 설치되어 플라이백 트랜스로부터 전원을 공급받도록 구성되어 있다.In general, as shown in FIGS. 1 and 2, the cathode ray tube has inner and outer conductive films 14 and 15 coated on its inner and outer surfaces, respectively, and on the one side of the cathode ray tube, several tens of kilos are used. An anode cap 12 to which a high voltage power supply of a bolt is applied is installed and configured to receive power from a flyback transformer.

또한, 음극선관의 후단 네크부에는 전자총(17)과 편향요크(13)가 설치 되어 있어 전자총(17)으로부터 조사된 전자빔이 편향코일의 자속에 의해 형광막과 상하, 좌우로 이동하면서 충돌하여 화상을 형성하며, 플라이백 트랜스로부터는 애노드 캡(12)을 통해 약 25킬로볼트 정도의 고압이 인가됨에 따라 내부 및 외부 도전막(14)(15) 사이에 전하가 충전된다.In addition, an electron gun 17 and a deflection yoke 13 are provided in the rear neck portion of the cathode ray tube, and the electron beam irradiated from the electron gun 17 collides with the fluorescent film while moving up and down, left and right by the magnetic flux of the deflection coil, causing an image. As a high pressure of about 25 kilovolts is applied from the flyback transformer through the anode cap 12, a charge is charged between the inner and outer conductive layers 14 and 15.

그런데, 이와 같이 내부 및 외부 도전막(14)(15)에 충전된 전하는 외부로부터 공급된 전원이 차단되어도 전하가 장시간 충전된 상태로 존재하여 정전기를 지속적으로 발생시키며, 이와 같이 음극선관의 내부 및 외부 도전막(14)(15)으로부터 발생하는 정전기는 인체에 해를 끼칠 뿐만 아니라, 주변장치에 간섭하여 동작 안정성을 저해한다.However, the electric charges charged in the inner and outer conductive layers 14 and 15 remain in the charged state for a long time even when the power supplied from the outside is cut off, thereby continuously generating static electricity. The static electricity generated from the external conductive films 14 and 15 not only harms the human body, but also interferes with peripheral devices, thereby deteriorating operational stability.

특히, 음극선관의 전원오프시에는 그 전방중앙에 작은 광점인 스폿이 발생하여 음극선관의 형광면을 손상시키는 경우가 발생한다.In particular, when the cathode ray tube is powered off, a small light spot occurs in the front center thereof, which causes damage to the fluorescent surface of the cathode ray tube.

본 고안은 상기한 바와 같은 종래의 문제점을 해결하기 위해 안출한 것으로, 본 고안의 목적은 내부 및 외부 도전막(14)(15) 사이에 충전되어 있는 전하를 전원의 오프와 동시에 신속히 방전, 소멸시킴으로써, 정전기에 의한 인체의 피해를 방지하는 한편, 화면의 스폿을 제거하는 음극선관을 제공하기 위한 것이다.The present invention is devised to solve the conventional problems as described above, the object of the present invention is to discharge and dissipate the charge that is charged between the inner and outer conductive film (14, 15) at the same time with the power off In order to prevent damage to the human body due to static electricity, the cathode ray tube is provided to remove spots on the screen.

상기한 바와 같은 본 고안의 목적은, 외부 도전막이 도포된 음극선의 배면에 상기한 외부 도전막과 전기적으로 접속된 다수의 도체를 각각 방사상으로 부착시킨 것을 특징으로 하는 정전기를 방지하는 음극선관을 제공함으로써 달성된다.An object of the present invention as described above is to provide a cathode ray tube to prevent the static electricity, characterized in that each of the plurality of conductors electrically connected to the outer conductive film is radially attached to the back of the cathode ray coated with the outer conductive film. Is achieved.

이하, 본 고안의 구체적인 실시예를 첨부한 도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, a specific embodiment of the present invention will be described in detail.

제3도는 본 고안에 의한 음극선관의 요부 구성도로서, 본 고안은 통상적인 구조를 갖는 음극선과 같이 배면 상부에 애노드 캡(12)이 부착되고, 상기한 애노드 캡(12)으로는 고압의 전원을 인가하는 플라이백 트랜스가 결합되며, 상기 음극선관(11)의 후방 중앙 둘레에는 수직 및 수평편향 코일을 갖는 편향요크(13)가 결합된다.3 is a main configuration diagram of a cathode ray tube according to the present invention, the present invention is the anode cap 12 is attached to the upper surface, such as a cathode ray having a conventional structure, the anode cap 12 is a high-voltage power supply A flyback transformer for applying a coupling is coupled, and a deflection yoke 13 having vertical and horizontal deflection coils is coupled around the rear center of the cathode ray tube 11.

그리고,음극선관(11)의 후면 내측 및 외측 둘레에는 내부 및 외부 도전막(14)(15)이 각각 도포되며, 특히 상기 외부 도전막(15)의 둘레에 동박판과 같이 양호한 전도율을 갖는 다수의 도체(16)를 방사방으로 부착하여 도전막에 충전된 전하를 전원 오프와 함께 방전시키도록 한다.In addition, inner and outer conductive films 14 and 15 are respectively coated on the inner and outer circumferences of the rear side of the cathode ray tube 11, and in particular, a plurality of having a good conductivity, such as a copper foil, around the outer conductive film 15. The conductor 16 is attached to the radiation chamber so that the electric charge charged in the conductive film is discharged together with the power off.

한편, 상기 음극선관(11)의 네크부에는 전자총이 결합된다.On the other hand, an electron gun is coupled to the neck portion of the cathode ray tube 11.

계속해서 이와 같은 본 고안은 제3도와 같이, 전자총으로부터 발사되는 전자빔이 편향요크(13)의 수직 및 수평편향 코일에 의해 상하 및 좌우로 위치이동되면서 음극선관(11)의 형광면에 부딪혀 화상을 형성하며, 애노드 캡(12)은 플라이백 트랜스로부터의 고압의 음극선관(11)내에 공급한다.Then, the present invention, as shown in Fig. 3, the electron beam emitted from the electron gun is moved up and down and left and right by the vertical and horizontal deflection coils of the deflection yoke 13 to hit the fluorescent surface of the cathode ray tube 11 to form an image The anode cap 12 is supplied into the high pressure cathode ray tube 11 from the flyback transformer.

그리고, 애노드 캡(12)에 고압의 전원이 인가됨에 따라 내부 및 외부 도전막(14)(15) 사이에 전하가 충전되며, 이 전하는 음극선관(11)의 전원을 오프시킴과 동시에 다수의 도체(16)로 전달되므로 도체(16)에 의한 접지효과에 의해 단시간에 방전소멸된다.As the high voltage power is applied to the anode cap 12, electric charge is charged between the inner and outer conductive layers 14 and 15, and the charge turns off the power of the cathode ray tube 11 and at the same time a plurality of conductors. Since it is transmitted to (16), discharge is extinguished in a short time by the grounding effect by the conductor (16).

이처럼 전원의 오프시 전하를 급속방전시킴으로써 정전기의 발생을 미연에 방지하는 것은 물론, 화면의 스폿을 제거할 수 있으며, 이와 함께 내부 및 외부 도전막(14)(15) 사이에 충전된 전하의 방전활동을 활발히 진행시킨다.In this way, by rapidly discharging the electric charge when the power supply is turned off, it is possible to prevent the generation of static electricity in advance and to remove the spot of the screen, and to discharge the electric charge charged between the internal and external conductive layers 14 and 15. Actively promote the activity.

이상에서 설명한 바와 같이 본 고안은, 음극선관의 외부 도전막에 다수의 도체를 방사상으로 부착하여 전원의 오프시 내부 및 외부 도전막 사이에 충전된 전하를 신속히 방전, 소멸시킴으로써 정전기의 발생을 미연에 방지하는 것은 물론, 화면의 스폿을 제거하여 형광면의 손상을 방지할 수 있는 등의 많은 효과가 있다.As described above, the present invention, by attaching a large number of conductors radially to the outer conductive film of the cathode ray tube to quickly discharge and dissipate the charges charged between the inner and outer conductive film when the power is turned off, the generation of static electricity in advance In addition to preventing, there are many effects such as removing spots on the screen to prevent damage to the fluorescent screen.

Claims (1)

외부 도전막(15)이 도포된 음극선의 배면에 상기한 외부 도전막(15)과 전기적으로 접속된 다수의 도체(16)를 각각 방사상으로 부착시킨 것을 특징으로 하는 정진기를 방지하는 음극선관.A cathode ray tube for preventing a commutator, characterized in that a plurality of conductors (16) electrically connected to the external conductive film (15) are radially attached to the back surface of the cathode ray coated with the external conductive film (15).
KR2019950025892U 1995-09-25 1995-09-25 Anti-static electricity of cathode ray tube KR0138973Y1 (en)

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Application Number Priority Date Filing Date Title
KR2019950025892U KR0138973Y1 (en) 1995-09-25 1995-09-25 Anti-static electricity of cathode ray tube

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Application Number Priority Date Filing Date Title
KR2019950025892U KR0138973Y1 (en) 1995-09-25 1995-09-25 Anti-static electricity of cathode ray tube

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KR970015274U KR970015274U (en) 1997-04-28
KR0138973Y1 true KR0138973Y1 (en) 1999-03-20

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