KR0144277B1 - Cathode Sphere Structure of Cathode Ray Tube - Google Patents

Cathode Sphere Structure of Cathode Ray Tube

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Publication number
KR0144277B1
KR0144277B1 KR1019940033339A KR19940033339A KR0144277B1 KR 0144277 B1 KR0144277 B1 KR 0144277B1 KR 1019940033339 A KR1019940033339 A KR 1019940033339A KR 19940033339 A KR19940033339 A KR 19940033339A KR 0144277 B1 KR0144277 B1 KR 0144277B1
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South Korea
Prior art keywords
cathode
negative electrode
prevent
control electrode
sphere
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KR1019940033339A
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Korean (ko)
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KR960026007A (en
Inventor
김대수
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구자홍
엘지전자주식회사
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Priority to KR1019940033339A priority Critical patent/KR0144277B1/en
Publication of KR960026007A publication Critical patent/KR960026007A/en
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Publication of KR0144277B1 publication Critical patent/KR0144277B1/en

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Abstract

본 발명은 음극선관의 음극구체구조에 관한 것으로 특히 브라운관의 비딩 작업으로 생기는 음극구체의 고착강도 저하를 방지하고 음극구체에서 발생한 열의 전달을 막아 제어격자전극의 간격변화로 인한 차단전압의 변화를 방지할수 있도록 한 것으로서, 제어전극과의 접촉면적을 줄이도록 장방형으로 구성된 음극구체화, 상기 음극구체내의 비딩 가압력을 균일하게 하고 고착강도의 저하를 막도록 세라믹 서포터의 비딩부와 제어전극의 접촉부를 직선형상으로 구비한 것이다.The present invention relates to the structure of the negative electrode of the cathode ray tube, in particular, to prevent a decrease in the fixing strength of the negative electrode sphere caused by the beading operation of the CRT and to prevent the transfer of heat generated from the negative electrode sphere to prevent the change of the blocking voltage due to the change of the spacing of the control grid electrode In order to reduce the contact area with the control electrode, the cathode structure is formed in a rectangular shape, the beading portion of the ceramic supporter is uniform in contact with the beading portion of the ceramic supporter and the control electrode so as to prevent a decrease in adhesion strength. It is equipped with.

Description

음극선과 음극구체구조Cathode Ray and Cathode Sphere

제1도는 종래 비딩된 음극구체의 단면도.1 is a cross-sectional view of a conventional beaded cathode sphere.

제2도는 종래 음극구체의 평면도.2 is a plan view of a conventional negative electrode sphere.

제3도는 종래 제어전극과 음극지지체의 결합평면도.3 is a plan view of a combination of the conventional control electrode and the cathode support.

제4도는 종래 제어전극의 평면도.4 is a plan view of a conventional control electrode.

제5도는 본 발명 음극구체의 평면도.5 is a plan view of the negative electrode sphere of the present invention.

제6도는 본 발명 제어전극의 평면도.6 is a plan view of the control electrode of the present invention.

제7도는 본 발명 제어전극과 음극구체의 결합평면도.7 is a plan view of the coupling between the control electrode and the cathode sphere of the present invention.

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

101:제어전극 102:절연체101: control electrode 102: insulator

103:리본상 금속핀 105:세라믹 서포터103: ribbon award metal pin 105: ceramic supporter

106:히터지지용 리드선 107:접촉부106: heater support wire 107: contact portion

본 발명은 음극선관의 음극구체구조에 관한 것으로 특히 투사형 브라운관의 비딩(BEADING)작업으로 생기는 음극구체의 고착강도저하를 방지하고 제어전극의 간격변화로 인한 차단전압의 변화를 방지할 수 있도록 한 것이다.The present invention relates to the structure of the negative electrode of the cathode ray tube, in particular, to prevent the decrease in adhesion strength of the negative electrode sphere caused by the beading operation of the projection type CRT and to prevent the change in the breaking voltage due to the change of the gap of the control electrode. .

종래의 음극선관용 음극구체는 제1도 및 제2도에서 나타낸것과 같이 음극, 히터 및 음극지지체로 구성되어 있다.Conventional cathode tube for cathode ray tube is composed of a cathode, a heater and a cathode support as shown in FIG. 1 and FIG.

여기서, 음극은 캡(1), 슬리브(2), 슬리브하단부에 홀더(4) 상단부에 연결된 금속리본(3)으로 구성되어 있으며, 히터는 음극슬리브에 내장된 히터본체(7)와 히터지지용 금속편(9)으로 구성되어 있으며, 이는 음극지지체의 절연체(6)에 매입된 리드선(8)에 의해 연결되어 있다.Here, the cathode is composed of a cap (1), a sleeve (2), a metal ribbon (3) connected to the upper end of the holder (4) at the lower end of the sleeve, the heater is a heater body (7) embedded in the cathode sleeve and for supporting the heater It consists of the metal piece 9, which is connected by the lead wire 8 embedded in the insulator 6 of the negative electrode support body.

음극지지체는 음극을 감싸 지지하는 절연체(6), 절연체를 압착, 고정하는 세라믹 서포터(5), 절연체에 매입된 리드선(8), 음극을 지지하기 위한 절연체 내부공에 압착, 연결된 홀더(4)로 구성되어 있다.The negative electrode support is an insulator 6 which encloses and supports the negative electrode, a ceramic supporter 5 that crimps and fixes the insulator, a lead wire 8 embedded in the insulator, and a holder 4 that is crimped and connected to the inner hole of the insulator for supporting the negative electrode. Consists of

여기서, 음극, 히터 및 음극지지체로 구성되어 있는 음극구체는 캡현상의 제어전극(11)에 내장되어 용접, 고정되어 비딩(beading)에 의해 비드 글라스(Bead Glass)(10)에 용융, 연결되어 지지되어진다.Here, the cathode sphere composed of the cathode, the heater and the cathode support is embedded in the control electrode 11 of the cap phenomenon is welded, fixed and melted and connected to the bead glass (10) by beading (beading) Supported.

이와같이 구성된 음극구체는 비딩시 힘을 받는 음극지지체의 면이 제2도의 A부분처럼 원형으로 되어 있어 힘이 고르게 분산되지 않으므로 음극구체의 가열, 냉각이 반복될 때 잔류용력이 커서 제2도의 홀더(4), 세라믹포터(5), 그리고 절연체(6), 리드선(8)으로 구성된 음극지지체의 고착강도가 저하되어 음극의 변형으로 인해 에미션(Emission)성능의 경시변화가 일어나서 신뢰성에 영향을 미치게 된다.The negative electrode sphere configured as described above has the surface of the negative electrode support, which is subjected to the beading, to be circular like the A part of FIG. 2, so that the force is not evenly distributed, so that the residual capacity is large when the negative electrode sphere is repeatedly heated and cooled. 4), the adhesion strength of the negative electrode support composed of the ceramic porter 5, the insulator 6, and the lead wire 8 is lowered, resulting in a change in emission performance over time due to the deformation of the negative electrode, affecting reliability. do.

그리고 세라믹 서포터(5)와 제어전극(11)간의 용접으로 인한 접촉면적이 넓어 작동시 제어전극이 열변위를 일으키게되고 음극과 제어전극간의 간격변화로 인한 차단전압변화가 일어나서 성능(경시변화)이 저하되는 문제점이 있다.In addition, the contact area between the ceramic supporter 5 and the control electrode 11 is large, so that the control electrode causes thermal displacement during operation, and a change in the breaking voltage due to a change in the gap between the cathode and the control electrode causes performance (time change). There is a problem of deterioration.

따라서 본 발명은 이러한 점을 감안하여 음극구체가 제어전극과의 접촉면적을 줄이도록 제5도에서처럼 절연체(102) 및 세러믹서포터(105)를 기존의 원형에서 장방형으로 구성하고, 제5도 및 제6도에서처럼 세라믹서포터(105)와 제어전극의 접촉부(107)를 기존의 원형에서 직선형상으로 하므로 비딩가압력을 균일하게하고 고착감도의 저하를 방지하여 음극에서 발생한 열의 전달을 막아 제어전극의 간격 변화로 인한 차단전압의 변화를 방지하고 비딩작업성을 향상시키는데 그 목적이 있다.Therefore, in view of the above, the present invention configures the insulator 102 and the ceramic supporter 105 in the form of a rectangular to rectangular shape as shown in FIG. 5 so that the cathode sphere reduces the contact area with the control electrode. As shown in FIG. 6, since the ceramic supporter 105 and the contact portion 107 of the control electrode are formed in a straight line from the existing circle, the bead pressing force is uniform and the adhesion sensitivity is prevented from being lowered to prevent the transfer of heat generated from the cathode, thereby preventing the gap between the control electrodes. The purpose is to prevent the change of breaking voltage due to the change and to improve the beadability.

본 발명을 제5도 내지 제7도에 의해 설명한다.The invention is illustrated by FIGS. 5 to 7.

음극, 히터, 음극지지체로 구성된 음극선관의 음극구체에 있어서 제어전극(101)과의 접촉면적을 장방형으로 구성된 음극지지체와 상기 음극지지체내의 비딩가압력을 균일하게 하고, 고착강도의 저하를 막기위한 고착강화수단을 구비하였다.In the cathode sphere of the cathode ray tube composed of the cathode, the heater, and the cathode support, the contact area with the control electrode 101 is made to be uniform in the rectangular support and the beading pressure in the cathode support, and to prevent a decrease in adhesion strength. Fixing strengthening means was provided.

그리고, 상기 고착강화수단은 직선형으로 형성된 세라믹서포터(105)의 비딩수(제5도의 A'부)와 상기 비딩부에 접촉되는 제어전극의 접촉부를 균일압력이 가해지도록 직선형상으로 구비하였다.In addition, the fixing and strengthening means was provided in a linear shape such that a uniform pressure is applied to the beading water (A 'portion in FIG. 5) of the ceramic supporter 105 formed in a linear shape and a contact portion of the control electrode contacting the beading portion.

미설명부호103은 리본상 금속편, 106은 히터 지지용 리드선이다.Reference numeral 103 is a ribbon metal piece, and 106 is a heater support lead wire.

이와 같이 구성된 본 발명은 세라믹서포터(105)의 비딩부의 형상을 곡면형상에서 제5도와 같이 직선형상으로 바꾸고 동시에 제어전극의 형상역시 절연체(102) 및 세라믹서포터(105)와 같은 직선형상으로 바꾸므로써 제7도와 같이 비딩방향과 직각방향이 되어 세라믹서포터의 비딩가압력이 균일하게 되어 홀더와 절연체간의 고착강도 저하방지 및 비딩작업성을 향상시킬수 있다.According to the present invention configured as described above, the shape of the beading portion of the ceramic supporter 105 is changed from a curved shape to a straight shape as shown in FIG. 5 and at the same time, the shape of the control electrode is also changed into a straight shape such as the insulator 102 and the ceramic supporter 105. As shown in FIG. 7, the beading direction of the ceramic supporter becomes uniform in the direction perpendicular to the beading direction, thereby preventing a decrease in adhesion strength between the holder and the insulator and improving beading workability.

그리고, 음극지지체중 절연체 및 세라믹서포터의 형상을 제5도에서처럼 원형에서 장방형으로 바꿈으로써 제7도와 같이 제어전극과 음극구체간의 접촉면적을 줄이므로써 음극에서 발생한 열의 전달을 보다 효율적으로 막아 차단전압의 변화를 방지할 수 있게 되었다.In addition, the shape of the insulator and the ceramic supporter in the cathode support is changed from circular to rectangular as in FIG. 5, thereby reducing the contact area between the control electrode and the cathode sphere, as shown in FIG. It is possible to prevent the change.

이와같이 본 발명은 브라운관의 비딩작업으로 생기는 음극구체의 고착강도저하를 방지하고 음극구체에서 발생한 열의 전달을 막아 제어전극의 간격변화로 인한 차단전압의 변화를 방지할 수 있다.As described above, the present invention prevents a decrease in the adhesion strength of the negative electrode spheres caused by the beading operation of the CRT and prevents the transfer of heat generated from the negative electrode spheres, thereby preventing the change of the blocking voltage due to the change in the spacing of the control electrode.

Claims (1)

음극, 히터, 음극지지체로 구성된 음극선과 전자총의 음극구체에 있어서, 제어전극과의 접촉면적을 줄이도록 음극지지체중의 절연체와 세라믹서포터를 장방형으로 구성하고, 세라믹서포터와 제어전극의 접촉부를 직선형상으로 한 것을 특징으로 하는 음극선관의 음극구체구조.In the negative electrode structure of the cathode ray and electron gun composed of a cathode, a heater, and a cathode support, an insulator and a ceramic supporter in the cathode support are formed in a rectangular shape so as to reduce the contact area with the control electrode, and the contact portion between the ceramic supporter and the control electrode is linear. Cathode sphere structure of the cathode ray tube, characterized in that.
KR1019940033339A 1994-12-08 1994-12-08 Cathode Sphere Structure of Cathode Ray Tube KR0144277B1 (en)

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Application Number Priority Date Filing Date Title
KR1019940033339A KR0144277B1 (en) 1994-12-08 1994-12-08 Cathode Sphere Structure of Cathode Ray Tube

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Application Number Priority Date Filing Date Title
KR1019940033339A KR0144277B1 (en) 1994-12-08 1994-12-08 Cathode Sphere Structure of Cathode Ray Tube

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KR960026007A KR960026007A (en) 1996-07-20
KR0144277B1 true KR0144277B1 (en) 1998-07-01

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