KR200145255Y1 - Convergence cup in electron-gun - Google Patents

Convergence cup in electron-gun Download PDF

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Publication number
KR200145255Y1
KR200145255Y1 KR2019940032761U KR19940032761U KR200145255Y1 KR 200145255 Y1 KR200145255 Y1 KR 200145255Y1 KR 2019940032761 U KR2019940032761 U KR 2019940032761U KR 19940032761 U KR19940032761 U KR 19940032761U KR 200145255 Y1 KR200145255 Y1 KR 200145255Y1
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KR
South Korea
Prior art keywords
convergence cup
electron gun
bead glass
insertion groove
present
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Application number
KR2019940032761U
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Korean (ko)
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KR960018988U (en
Inventor
김한얼
Original Assignee
김영남
오리온전기주식회사
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Priority to KR2019940032761U priority Critical patent/KR200145255Y1/en
Publication of KR960018988U publication Critical patent/KR960018988U/en
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Publication of KR200145255Y1 publication Critical patent/KR200145255Y1/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
    • H01J29/46Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48Electron guns
    • H01J29/51Arrangements for controlling convergence of a plurality of beams by means of electric field only
    • 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
    • H01J29/46Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48Electron guns
    • H01J29/484Eliminating deleterious effects due to thermal effects, electrical or magnetic fields; Preventing unwanted emission
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00Details of cathode ray tubes or electron beam tubes
    • H01J2229/48Electron guns
    • H01J2229/4803Electrodes
    • H01J2229/4806Shield centering cups
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00Details of cathode ray tubes or electron beam tubes
    • H01J2229/48Electron guns
    • H01J2229/50Plurality of guns or beams
    • H01J2229/502Three beam guns, e.g. for colour CRTs

Landscapes

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

Abstract

본 고안은 전자총의 개선된 컨버전스 컵을 개시한다.The present invention discloses an improved convergence cup of an electron gun.

종래에는 비이드 글래스를 삽입하는 삽입홈의 측면이 직각으로 구성되었는바, 조립시 비이드 글래스와의 간섭이 빈발하여 전자총의 정합상태를 변화시키는 문제가 있었다.Conventionally, since the side of the insertion groove for inserting the bead glass is configured at right angles, there is a problem that the interference with the bead glass during the assembly is frequently changed to change the matching state of the electron gun.

본 고안에서는 삽입홈의 양 측면을 외측으로 경사지게 형성하여, 조립시 비이드 글래스와의 간섭을 방지함으로써 종래의 문제를 해결하였다.In the present invention, both sides of the insertion groove are formed to be inclined outward, thereby preventing the interference with the bead glass during assembly to solve the conventional problem.

Description

전자총의 컨버전스 컵Convergence Cup of the Gun

제1도는 일반적인 전자총을 보이는 발췌 부분절단 측면도.1 is a cutaway side view showing a typical electron gun.

제2도는 종래의 컨버전스 컵을 보이는 저면도.2 is a bottom view of a conventional convergence cup.

제3도는 본 고안에 의한 컨버전스컵을 보이는 저면 사시도.3 is a bottom perspective view showing a convergence cup according to the present invention.

제4도는 그 저면도이다.4 is a bottom view thereof.

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

12 : (본고안 컨버전스 컵의) 몸체 14 : (몸체의) 삽입홈12: Body (of convergence cup) 14: Insertion groove

14a : (삽입홈의) 바닥면 14b : (삽입홈의) 측면14a: Bottom surface (insertion groove) 14b: Side view (insertion groove)

B : 비이드 글래스(bead glass)B: bead glass

본 고안은 칼라 음극선관(cathode ray tube)에 관한 것으로, 더 상세히는 전자총 어셈블리(electron gun)의 컨버전스 컵(convergence cup)에 관한 것이다.The present invention relates to a color cathode ray tube, and more particularly to a convergence cup of an electron gun assembly.

제1도에서, 전자총(E)은 전자를 방출하는 R, G, B의 세 캐소드(cathode: 도시안됨)와, 방출된 전자를 집속(集束) 및 가속(加速)시켜 형광면에 랜딩(landing)시키는 복수의 전극(G)들을 구비한다. 각 적극(G)들은 정전렌즈(electrostatic lens)의 형성을 위해 소정간격으로 이격되는 바, 열가소성 유리재질인 두 비이드 글래스(bead glass: B)에 의해 융착고정된다. 한편 전자총(E)의 최종전극 후단에는 전자빔을 편향시키는 편향요크(deflection yoke)의 누설자계를 차폐하고 화면 주변부의 미세 컨버전스를 조정하는 컨버전스 컵(1)이 부착된다.In FIG. 1, the electron gun E has three cathodes (not shown) that emit electrons, and collects and accelerates the emitted electrons to land on the fluorescent surface. It is provided with a plurality of electrodes (G). Each of the positive electrodes G is spaced at a predetermined interval to form an electrostatic lens, and is fusion-fixed by two bead glasses B made of thermoplastic glass. On the other hand, a convergence cup 1 is attached to the rear end of the electron gun E to shield the leakage magnetic field of the deflection yoke deflecting the electron beam and to adjust the fine convergence around the screen.

제1도에는 이러한 컨버전스 컵(1)의 일례를 도시하였다. 이것은 원통형 몸체(2)의 저면에 캐소드에 대응하는 세 전자빔 통과구멍(3)이 일렬로 형성되어 있고, 이들과 직교하는 양 외주에는 비이드 글래스(B)의 선단부가 삽입되는 삽입홈(4)이 각각 형성되어 있다.1 shows an example of such a convergence cup 1. The insertion groove 4 into which the three electron beam through-holes 3 corresponding to the cathode are formed in a row at the bottom of the cylindrical body 2, and the front end part of the bead glass B is inserted in the outer periphery which is orthogonal to them. These are formed, respectively.

그런데 전자총(E)의 조립은 일반적으로 캐소드와 각 전극(G)을 비이드 글래스(B)로 고정한 뒤, 제1도의 가상선과 같이 최종전극에 컨버전스 컵(1)을 부착하여 이뤄지는 바, 종래의 컨버전스 컵(1)은 삽입홈(4)의 양 측면(4b)이 바닥면 (4a)에 대해 직각으로 형성되어 있으므로 조립시 비이드 글래스(B)와의 간섭이 빈번히 발생하였다. 이에 따라 컨버전스 컵(1)의 조립이 곤란할 뿐 아니라 간섭으로 인해 비이드 글래스(B)에 기(旣) 고정된 전극(G)들의 정합상태가 변화되어 전자빔이 왜곡되는 등 완성된 음극선관의 화질을 열화시키는 문제가 있었다.However, the assembly of the electron gun E is generally performed by fixing the cathode and each electrode G with the bead glass B, and then attaching the convergence cup 1 to the final electrode as shown in FIG. Since both sides 4b of the insertion groove 4 are formed at right angles to the bottom surface 4a, the convergence cup 1 frequently interferes with the bead glass B during assembly. As a result, the assembly of the convergence cup 1 is not only difficult, but the matching state of the electrodes G fixed to the bead glass B is changed due to the interference, and thus the electron beam is distorted. There was a problem of deteriorating.

본 고안의 목적은 이러한 종래의 문제점을 감안하여 전자총의 조립시 비이드 글래스와의 간섭을 방지할 수 있는 전자총의 컨버전스 컵을 제공하는 것이다.It is an object of the present invention to provide a convergence cup of an electron gun which can prevent interference with bead glass when assembling the electron gun in view of such a conventional problem.

이와같은 목적을 달성하기 위해 본 고안에 의한 전자총의 컨버전스 컵은, 전자총의 최종전극 후단에 부착되며, 비이드 글래스의 선단부를 삽입하는 삽입홈이 형성된 컨버전스 컵에 있어서, 삽입홈의 양 측면이 바닥면에 대해 각각 외측으로 경사지게 형성되는 것을 특징으로 한다.In order to achieve the above object, the convergence cup of the electron gun according to the present invention is attached to the rear end of the final electrode of the electron gun, and in the convergence cup having an insertion groove for inserting the tip of the bead glass, both sides of the insertion groove are bottomed. It is characterized in that the inclined outward with respect to the surface respectively.

이에따라 본 고안은, 컨버전스컵의 조립시 비이드 글래스와의 간섭이 효과적으로 방지되므로 음극선관의 화질과 품위 향상에 효과를 발휘한다.Accordingly, the present invention effectively prevents interference with the bead glass when assembling the convergence cup, thereby exhibiting an effect on improving the quality and quality of the 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.

제3도 및 제4도에서, 본 고안에 의한 전자총의 컨버전스 컵(11)은 원통형의 몸체(12) 저면에 R, G, B전자빔이 각각 진행하는 세 전자빔 통과구멍(13)이 캐소드에 대응하여 일렬로 형성된다. 각 전자빔 통과구멍(13)의 배열방향과 직교하는 몸체(11)의 향외주에는 전극(제1도의 G)들을 지지하는 비이드 글래스(B)의 일측 선단부를 삽입하는 삽입홈(14)이 각각 형성되는데, 이 삽입홈(14)들의 양 측면(14b)은 본 고안의 특징에 따라 그 바닥면(14a)에 대해 각각 외측으로 경사지게 형성된다.In FIGS. 3 and 4, the convergence cup 11 of the electron gun according to the present invention has three electron beam through-holes 13 through which R, G, and B electron beams respectively progress on the bottom of the cylindrical body 12, corresponding to the cathode. Are formed in a row. On the outward circumference of the body 11 orthogonal to the arrangement direction of each electron beam through hole 13, insertion grooves 14 for inserting one end of the bead glass B for supporting the electrodes (G in FIG. 1) are respectively provided. Both sides 14b of the insertion grooves 14 are formed to be inclined outward with respect to the bottom surface 14a, respectively, in accordance with a feature of the present invention.

이러한 삽입홈(14) 측면(14b)의 경사각도는 본 고안에 별다른 영향을 미치지는 않으나, 조립시 비이드 글래스(B)와의 간섭이 일어나지 않는 범위에서 너무 크지 않도록 적절히 설정되는 것이 바람직하다. 즉 이 삽입홈(14)은 비이드 글래스(B)를 삽입함으로써 최종전극에 대한 컨버전스 컵(11)의 정합을 안내하게 되는바, 측면(14b)의 경사각도가 지나치게 클 경우 컨버전스 컵(11)이 비이드 글래스(B)에 대해 유동되어 정확한 정합안내가 어렵게 되므로 유동이 발생되지 않도록 적절한 각도로 설정되어야 한다.The inclination angle of the side surface 14b of the insertion groove 14 does not affect the present invention, but it is preferable that the angle of inclination is appropriately set so as not to be too large in the range where interference with the bead glass B does not occur during assembly. That is, the insertion groove 14 guides the matching of the convergence cup 11 to the final electrode by inserting the bead glass B. When the inclination angle of the side surface 14b is too large, the convergence cup 11 Since the bead glass B flows with respect to the bead guide, it is difficult to precisely match the guide glass.

이와같은 구조적 특징을 가지는 본 고안에 의한 전자총의 컨버전스 컵(11)은, 그 삽입홉(14)의 양 측면(14b)의 외측으로 경사지게 구성되어 있으므로 전자총(제1도의 E)에의 조립시 비이드 글래스(B)와 간섭되지 않게 된다. 이에따라 종래에 비해 컨버전스 컵(11)의 조립이 매우 용이해질 뿐만 아니라 간섭에 의해 비이드 글래스(B)에 기고정된 전극(제1도의 G)들의 정합변화가 효과적으로 방지된다.Since the convergence cup 11 of the electron gun according to the present invention having such a structural feature is configured to be inclined to the outside of both side surfaces 14b of the insertion hop 14, the bead at the time of assembly to the electron gun (E in FIG. 1). It does not interfere with the glass B. Accordingly, not only the assembly of the convergence cup 11 is much easier than in the related art, but also the change of registration of the electrodes (G in FIG. 1) fixed to the bead glass B by interference is effectively prevented.

따라서 본 고안은 음극선관의 화질열화 방지에 의한 신뢰성 향상에 효과가 있다.Therefore, the present invention is effective in improving reliability by preventing deterioration of image quality of the cathode ray tube.

Claims (1)

전자총의 최종전극 후단에 부착되며, 비이드 글래스의 선단부를 삽입하는 삽입홈이 형성된 컨버전스 컵에 있어서, 상기 삽입홈(14)의 양 측면(14b)이 바닥면(14a)에 대해 각각 외측으로 경사지게 형성되는 것을 특징으로 하는 전자총의 컨버전스 컵.In a convergence cup attached to a rear end of an electron gun and having an insertion groove for inserting a front end portion of the bead glass, both side surfaces 14b of the insertion groove 14 are inclined outward with respect to the bottom surface 14a, respectively. A convergence cup of the electron gun, characterized in that formed.
KR2019940032761U 1994-11-30 1994-11-30 Convergence cup in electron-gun KR200145255Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019940032761U KR200145255Y1 (en) 1994-11-30 1994-11-30 Convergence cup in electron-gun

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Application Number Priority Date Filing Date Title
KR2019940032761U KR200145255Y1 (en) 1994-11-30 1994-11-30 Convergence cup in electron-gun

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KR960018988U KR960018988U (en) 1996-06-19
KR200145255Y1 true KR200145255Y1 (en) 1999-06-15

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