KR0133826Y1 - Cathode ray tube - Google Patents

Cathode ray tube Download PDF

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Publication number
KR0133826Y1
KR0133826Y1 KR2019930030966U KR930030966U KR0133826Y1 KR 0133826 Y1 KR0133826 Y1 KR 0133826Y1 KR 2019930030966 U KR2019930030966 U KR 2019930030966U KR 930030966 U KR930030966 U KR 930030966U KR 0133826 Y1 KR0133826 Y1 KR 0133826Y1
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KR
South Korea
Prior art keywords
flange
inner shield
cathode ray
frame
ray tube
Prior art date
Application number
KR2019930030966U
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Korean (ko)
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KR950021239U (en
Inventor
천종목
Original Assignee
엄길용
오리온전기주식회사
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Priority to KR2019930030966U priority Critical patent/KR0133826Y1/en
Publication of KR950021239U publication Critical patent/KR950021239U/en
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Publication of KR0133826Y1 publication Critical patent/KR0133826Y1/en

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/26Sealing together parts of vessels
    • H01J9/263Sealing together parts of vessels specially adapted for cathode-ray tubes
    • 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
    • H01J29/02Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/06Screens for shielding; Masks interposed in the electron stream
    • 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2209/00Apparatus and processes for manufacture of discharge tubes
    • H01J2209/26Sealing parts of the vessel to provide a vacuum enclosure
    • H01J2209/265Surfaces for sealing vessels
    • H01J2209/267Surfaces for sealing vessels shaped surfaces or flanges

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

본 고안은 칼라 음극선관의 개선된 인너시일드를 개시한다.The present invention discloses an improved inner shield of color cathode ray tubes.

종래에는 그 플랜지가 수평으로 절곡 형성되었으므로 클립의 조립공차에 의해 프레임의 플랜지간에 갭이 발생되어 충격등이 가해질시 흔들리는 문제가 있었다.Conventionally, since the flange is formed to be bent horizontally, a gap is generated between the flanges of the frame due to assembly tolerances of the clip, and there is a problem of shaking when an impact lamp is applied.

본 고안에서는 인너시일드의 플랜지를 수평면에 대해 소정각도 경사지게 형성하여 프레임의 플랜지에 소정의 탄성으로 접촉되도록 함으로써 안정된 고정이 이루어지도록 하였다.In the present invention, the flange of the inner shield is formed to be inclined at a predetermined angle with respect to the horizontal plane so that the fixed contact is made to the flange of the frame with a predetermined elasticity.

Description

칼라 음극선관의 인너시일드Inner shield of colored cathode ray tube

제1도는 인너시일드의 역할을 보이는 칼라 음극선관의 단면도.1 is a cross-sectional view of a colored cathode ray tube showing the role of an inner shield;

제2도는 종래 인너시일드등의 문제점을 봉는 발췌 단면도.Figure 2 is an excerpt cross-sectional view that solves the problems of conventional inner shield.

제3도는 본 고안에 따른 인너시일드를 보이는 단면도.3 is a cross-sectional view showing the inner shield according to the present invention.

제4도는 본 고안 인너시일드가 프레임에 결합된 상태를 보이는 발췌 단면도.Figure 4 is an excerpt cross-sectional view showing a state of the invention the inner shield is coupled to the frame.

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

11 : 인너시일드(inner shield) F : 프레임(frame)11: inner shield F: frame

13 : (인너시일드의) 플랜지(flange)13: flange (inner shield)

Ff : (프레임의) 플랜지 θ-(인너시일드 플랜지의) 경사각도Ff: Flange θ- (Inner Sealed Flange)

C : (인너시일드 프레임 체결용) 클립(clip)C: (for fastening inner seal frame) clip

본 고안은 칼라 음극선관(color-cathode ray tube) 제조에 관한 것으로, 더 상세히는 지자기(地磁氣)를 차폐하는 인너시일드(inner shield)에 관한 것이다.The present invention relates to the production of a color-cathode ray tube, and more particularly to an inner shield for shielding geomagnetism.

칼라 음극선관은 제1도에 도시된 바와같이 R, G, B 전자총(electron gun; E)에서 발사된 전자빔을 편향요크(deflection yoke; DY)에 의해 편향시켜 색선별 수단인 섀도우 마스크(shadow mask; SM)를 통해 패널(panel; P) 내면에 형성된 형광면의 해당 형광체에 선택적으로 랜딩(landing)시킴으로써 칼라화상을 표시하는 장치이다.The color cathode ray tube deflects the electron beam emitted from the R, G, and B electron guns E by deflection yoke DY as shown in FIG. A device displaying a color image by selectively landing the phosphor on the phosphor surface formed on the inner surface of the panel P through SM.

그런데 음극선관의 지자기 영향을 미치는 위도가 각 나라마다 다르기 때문에 이들의 위도차를 줄이고자 음극선관의 인너시일드가 프레임 단부에 접촉고정 되어 있다. 따라서 음극선관에는 지자기에 의한 자기력이 작용하여 전자빔의 랜딩위치가 이동되게 되므로 정확한 랜딩을 위해서는 이러한 지자기의 적절한 차폐가 절실히 요구된다.However, because latitude affecting the geomagnetism of cathode ray tubes varies from country to country, the inner shield of cathode ray tubes is fixed to the frame end to reduce the latitude difference. Therefore, since the magnetic force by the geomagnetism acts on the cathode ray tube, the landing position of the electron beam is shifted, so proper shielding of the geomagnetism is urgently required for accurate landing.

이에따라 음극선관내에는 이러한 지자기의 차폐 목적으로 얇은 금속판으로 된 인너시일드(1)가 편향요크(DY)에 의한 전자빔의 경로를 둘러싸도록 설치된다. 이와같은 인너시일드(1)는 깔대기형 몸체(2)의 일단에 수평으로 재향하는 플랜지(flange; 3)를 통해 프레임(frame; F)에 고정된다. 즉, 인너시일드(1)와 프레임(F)의 플랜지(3, Ff)에 관통구멍(3a,H)을 형성하고, 이에 클립(clip; C)을 탄성적으로 결합함으로 고정하고 있다.Accordingly, in the cathode ray tube, an inner seal 1 made of a thin metal plate is provided to surround the path of the electron beam by the deflection yoke DY for the purpose of shielding the geomagnetism. This inner shield 1 is fixed to the frame F via a flange 3 which is redirected horizontally to one end of the funnel body 2. That is, through holes 3a and H are formed in the inner shield 1 and the flanges 3 and Ff of the frame F, and the clips C are fixed by being elastically coupled thereto.

그런데 이러한 종래의 인너시일드(1)는 그 플랜지(3)가 수평으로 절곡되어 있으므로 제2도에 도시한 바와같이 프레임(F)과 인너시일드(1)의 플랜지(3,Ff)간에 클립(C)의 조립공차에 의해 일정한 갭(gap; G)이 형성되게 된다. 이로인해 음극선관에 외부로부터 충격등이 가해질시 제2도에 가상선으로 도시한 바와같이 인너시일드(1)가 프레임(F)에 대해 흔들리게 되어 인너시일드(1)에 충돌된 전자빔에 의해 발생된 2차 전자 등의 유리(遊離)전자가 펀넬내에서 난반사되어 이상발광을 야기시키는 문제가 있었다.However, since the flange 3 is bent horizontally, the conventional inner shield 1 has a clip between the frame F and the flanges 3 and Ff of the inner shield 1 as shown in FIG. Due to the assembly tolerance of (C), a constant gap G is formed. As a result, when an impact lamp is applied to the cathode ray tube from the outside, the inner shield 1 is shaken with respect to the frame F, as shown in FIG. 2 by an imaginary line, to the electron beam collided with the inner shield 1. There is a problem that free electrons such as secondary electrons generated by these are diffusely reflected in the funnel causing abnormal light emission.

본 고안의 목적은 이러한 종래의 문제를 감안하여 클립의 조립공차에 구애없이 프레임에 대해 안정되게 고정할 수 있는 칼라 음극선관의 인너시일드를 제공하는 것이다.It is an object of the present invention to provide an inner shield of a color cathode ray tube which can be stably fixed to a frame regardless of assembly tolerances of clips in view of such a conventional problem.

이와같은 목적을 달성하기 위해 본 고안에 의한 인너시일드는 프레임의 플랜지에 체결수단에 의해 접촉고정되는 플랜지를 구비하는 칼라 음극선관의 인너시일드에 있어서, 그 플랜지가 소정의 탄성을 가지도록 수평면에 대해 외측으로 소정각도 경사지게 형성되는 것을 특징으로 한다.In order to achieve the above object, the inner shield according to the present invention is an inner shield of a color cathode ray tube having a flange which is fixed to a flange of a frame by fastening means, so that the flange has a predetermined elasticity on a horizontal plane. It is characterized in that it is formed to be inclined outward with respect to a predetermined angle.

이에따라 본 고안은, 인너시일드의 플랜지가 프레임의 플랜지에 탄성적으로 밀착고정되어 충격시 프레임에 대한 흔들림이 최대한 방지되게 되므로 완성된 음극선관의 품위와 신뢰성 향상등에 효과를 발휘한다.Accordingly, the present invention, since the flange of the inner shield is elastically fixed to the flange of the frame to prevent the shaking to the frame during the impact as much as possible to achieve the effect of improving the quality and reliability of the finished cathode ray tube.

이하 첨부된 도면을 참조하여 본 고안의 한 바람직한 실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

제3도에서, 본 고안에 의한 인너시일드(11)는 몸체(12)가 음극선관의 펀넬 내면에 대응하는 대략 사각뿔대의 외형을 가지도록 형성되고, 이 몸체(12)의 일단에는 프레임(도시안됨)의 플랜지에 접촉 고정되는 플랜지(13)가 내향하도록 절곡 형성된다. 이 플랜지(13)는 본 고안의 특징에 따라 소정의 탄성을 가지도록 그 변곡점이 위치하는 수평면에 대해 외측(도면에서는 하측)으로 소정각도(θ) 경사지게 형성된다. 플랜지(13)에는 체결수단, 예컨대 통상의 클랩(도시안됨)등이 탄성적으로 끼워지는 복수의 관통구멍(13a)이 프레임의 플랜지에 형성된 관통구멍에 대응하도록 형성되는데, 이 관통구멍(13a)은 플랜지(13)의 평면에 대해 직교하도록 구성되는 것이 바람직하다.In FIG. 3, the inner shield 11 according to the present invention is formed such that the body 12 has an outline of a substantially square pyramid corresponding to the inner surface of the funnel of the cathode ray tube, and at one end of the body 12 is a frame (not shown). Flange 13, which is in contact with and fixed to the flange of the (not), is bent inwardly. The flange 13 is formed to be inclined at a predetermined angle θ to the outside (lower side in the drawing) with respect to the horizontal plane on which the inflection point is located so as to have a predetermined elasticity according to the feature of the present invention. The flange 13 has a plurality of through holes 13a into which the fastening means, for example, a normal clap (not shown), is elastically fitted so as to correspond to the through holes formed in the flange of the frame. Is preferably configured to be orthogonal to the plane of the flange 13.

이와같이 구성된 본 고안에 의한 인너시일드의 작용을 살펴보면 다음과 같다.Looking at the action of the inner shield according to the present invention configured as described above are as follows.

제4도에서, 먼저 프레임(F)의 플랜지(Ff)상에 본 고안 인너시일드(11)를 얹으면 그 플랜지(13)의 선단에 프레임(F)의 플랜지(Ff)에 접촉된다. 다음 인너시일드(11)의 몸체(12)를 가볍게 누르면 그 변곡부가 탄성변형됨으로써 플랜지(13) 전체가 프레임(F)의 플랜지(Ff)에 접촉되며, 이때 각 관통구멍(13a,H)은 상호 일치되게 된다. 이와같은 상태에서 각 관통구멍(13a,H)에 클립(C)등의 체결수단을 순차적으로 결합함으로써 인너시일드(11)를 프레임(F)에 고정하게 된다. 이때 본 고안의 인너시일드(11)는 플랜지(13)가 탄성변형되어 소정의 탄성으로 프레임(F)의 플랜지(Ff)에 접촉 고정되므로 안정된 결합을 이루게 된다.In FIG. 4, when the present invention inner seal 11 is placed on the flange Ff of the frame F, the tip of the flange 13 is in contact with the flange Ff of the frame F. In FIG. Next, when the body 12 of the inner shield 11 is lightly pressed, the inflection portion elastically deforms, so that the entire flange 13 contacts the flange Ff of the frame F. At this time, each through hole 13a, H is Will be mutually consistent. In this state, the inner shield 11 is fixed to the frame F by sequentially engaging fastening means such as a clip C to each of the through holes 13a and H. At this time, the inner shield 11 of the present invention has a stable coupling because the flange 13 is elastically deformed and fixed to contact the flange (Ff) of the frame (F) with a predetermined elasticity.

이에따라 음극선관에 외부로부터 충격등이 가해지더라도 종래와 같이 인너시일드(11)가 프레임(F)에 대해 흔들리는 것을 최대한 방지할 수 있게 된다.Accordingly, even if an impact lamp is applied to the cathode ray tube from the outside, the inner shield 11 can be prevented from shaking with respect to the frame F as much as conventionally.

이와같이 본 고안에 의하면, 인너시일드를 프레임에 대해 유동없이 안정되게 고정할 수 있어 외부의 충격등에 의한 인너시일드의 흔들림을 최대한 방지할 수 있다. 따라서 본 고안은 완성된 음극선관의 품위와 신뢰성등을 향상시키는 효과가 있다.As described above, according to the present invention, the inner shield can be stably fixed to the frame without flow, and thus the inner shield can be prevented as much as possible due to external impact. Therefore, the present invention has the effect of improving the quality and reliability of the finished cathode ray tube.

Claims (1)

프레임의 플랜지에 체결수단에 의해 접촉고정되는 플랜지를 구비하는 칼라 음극선관의 인너시일드에 있어서, 상기 플랜지(13)가 소정의 탄성을 가지도록 수평면에 대해 외측으로 소정각도(θ) 경사지게 형성되는 것을 특징으로 하는 칼라 음극선관의 인너시일드.In the inner shield of the color cathode ray tube having a flange fixed to the flange of the frame by the fastening means, the flange 13 is formed to be inclined outwardly by a predetermined angle (θ) with respect to the horizontal plane so as to have a predetermined elasticity. Inner shield of color cathode ray tube, characterized in that.
KR2019930030966U 1993-12-30 1993-12-30 Cathode ray tube KR0133826Y1 (en)

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KR2019930030966U KR0133826Y1 (en) 1993-12-30 1993-12-30 Cathode ray tube

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Application Number Priority Date Filing Date Title
KR2019930030966U KR0133826Y1 (en) 1993-12-30 1993-12-30 Cathode ray tube

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KR950021239U KR950021239U (en) 1995-07-28
KR0133826Y1 true KR0133826Y1 (en) 1999-01-15

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