KR0179118B1 - Cathode ray tube - Google Patents

Cathode ray tube Download PDF

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Publication number
KR0179118B1
KR0179118B1 KR1019950037376A KR19950037376A KR0179118B1 KR 0179118 B1 KR0179118 B1 KR 0179118B1 KR 1019950037376 A KR1019950037376 A KR 1019950037376A KR 19950037376 A KR19950037376 A KR 19950037376A KR 0179118 B1 KR0179118 B1 KR 0179118B1
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KR
South Korea
Prior art keywords
holder
sleeve
ray tube
cathode
cathode ray
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KR1019950037376A
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Korean (ko)
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KR970023596A (en
Inventor
고병두
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구자홍
엘지전자주식회사
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Priority to KR1019950037376A priority Critical patent/KR0179118B1/en
Publication of KR970023596A publication Critical patent/KR970023596A/en
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Publication of KR0179118B1 publication Critical patent/KR0179118B1/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
    • H01J29/02Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • 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
    • H01J2329/00Electron emission display panels, e.g. field emission display panels
    • H01J2329/86Vessels
    • H01J2329/8625Spacing members
    • H01J2329/863Spacing members characterised by the form or structure

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  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

본 발명은 음극선관에 설치되는 음극부의 홀더상단 외주면에 소정 간격으로 돌출되어 슬리이브의 하단과 결합되는 복수개의 고정편이 형성되므로써 히터의 열이 슬리이브를 통해 홀더로 전도되어 발생되는 열손실을 최소화할 수 있으므로 인해 음극부의 온도를 안정된 상태로 유지시켜 에미션 특성을 증대시킬 수 있음과 동시에 음극부의 설계 자유도를 확대하여 용이하게 절전형으로 설계할 수 있는 등의 많은 장점이 구비된 것이다.The present invention has a plurality of fixing pieces which protrude at predetermined intervals on the outer circumferential surface of the upper portion of the holder of the cathode portion to be installed in the cathode ray tube to be combined with the bottom of the sleeve to minimize the heat loss generated by the heat of the heater is conducted to the holder through the sleeve Because of this, it is possible to increase the emission characteristics by maintaining the temperature of the cathode portion in a stable state, and at the same time, it is provided with many advantages such that it is possible to easily design a power saving type by expanding the design freedom of the cathode portion.

이를 위해, 본 발명은 홀더(1)에 슬리이브(2)에서 홀더(1)의 방향으로 전도되는 열을 최소화하기 위하여 슬리이브(2)와 결합되는 고정편(3)이 형성된 음극선관의 홀더와 슬리이브 결합구조이다.To this end, the present invention is a holder of a cathode ray tube formed with a fixing piece (3) coupled to the sleeve (2) in order to minimize the heat conducted to the holder (1) in the direction of the holder (1) in the sleeve (1) And sleeve coupling structure.

Description

음극선관의 홀더와 슬리이브 결합구조Holder and sleeve coupling structure of cathode ray tube

제1도는 종래 음극선관의 음극부가 결합된 상태를 나타낸 사시도.1 is a perspective view showing a state in which a cathode portion of a conventional cathode ray tube is coupled.

제2도는 제1도의 종단면도.2 is a longitudinal cross-sectional view of FIG.

제3도는 본 발명에 따른 음극부를 나타낸 종단면도.3 is a longitudinal sectional view showing a cathode part according to the present invention.

제4도는 제3도의 홀더를 나타낸 사시도.4 is a perspective view of the holder of FIG.

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

1 : 홀더 2 : 슬리이브1: holder 2: sleeve

3 : 고정편3: fixed piece

본 발명은 음극선관의 홀더와 슬리이브 결합구조에 관한 것으로서, 더욱 상세하게는 음극선관의 음극부에 내장된 히터의 열이 슬리이브를 통해 홀더로 전도되어 발생되는 열손실을 최소화할 수 있도록 한 것이다.The present invention relates to a holder and a sleeve coupling structure of the cathode ray tube, and more particularly, to minimize the heat loss generated by conducting heat from a heater embedded in the cathode portion of the cathode ray tube to the holder through the sleeve. will be.

종래 음극선관의 음극부는 제1도 및 제2도에 나타낸 바와 같이, 음극 지지체(5)가 부착된 지지 부재(6)가 비드 글래스(7)로 융착하여 고정되고, 상기 음극 지지체(5)의 내부에는 홀더(1a) 상단 외주면의 고정부재(8)에 하단이 삽입되어 상호결합된 슬리이브(2)가 설치되며, 슬리이브(2)의 상단에는 탄산염(9)이 증착된 캡(10)이 설치되고, 상기 슬리이브(2)와 홀더(1a)의 내부에는 히터(4)가 설치되어 구성된다.As shown in FIGS. 1 and 2, the cathode portion of the conventional cathode ray tube is fixed by fusion bonding of the support member 6 with the cathode support 5 onto the bead glass 7. Inside, the lower end is inserted into the fixing member 8 of the upper outer circumferential surface of the holder 1a and the combined sleeve 2 is installed, and the cap 10 on which the carbonate 9 is deposited is disposed on the upper end of the sleeve 2. The heater 4 is installed inside the sleeve 2 and the holder 1a.

따라서, 음극선관용 음극부의 슬리이브(2)와 홀더(1a)의 내부에 설치된 히터(4)에 전압을 인가하면 발열하여 음극부에 전달됨과 동시에 상기 슬리이브(2)상단의 캡(10)에 증착된 탄산염(9)에서 열전자를 방출하게 되고, 이 열전자 방출 효과를 증대시키기 위하여 열전달 통로인 슬리이브(2)의 구조에 민감하게 작용을 하여 길이, 두께, 외경에 의해서 열적인 변화가 쉽게 일어나 특성에 영향을 미치게 된다.Accordingly, when a voltage is applied to the sleeve 2 of the cathode portion of the cathode ray tube cathode and the heater 4 installed inside the holder 1a, heat is transferred to the cathode portion and the cap 10 of the upper portion of the sleeve 2 is applied. Hot electrons are emitted from the deposited carbonate (9), and in order to increase the hot electron emission effect, it is sensitive to the structure of the sleeve (2), which is a heat transfer path, and thermal changes easily occur due to length, thickness, and outer diameter. Will affect properties.

기본적으로, 음극부의 탄산염(9)에서 전자를 방출하기 위해서는 크게 열 활성화와 전류 활성화로 구분할 수 있는 에이징(Aging)을 거쳐야 하며, 탄산염(9)은 삼원염의 결합체로서 BaCO3, SrCO3, CaCO3로 혼합되어 있다.Basically, in order to emit electrons from the cathode portion carbonate (9), and go through the aging (Aging) that can be separated into large thermal activation and the current activated carbonate 9 are BaCO 3, SrCO 3, CaCO 3 as a three won salt conjugate Mixed with

이렇게 혼합된 탄산염(9)은 히터(4)에서 열이 전달되면 분해가 일어나게 되는데, 이때 열분해가 되는 과정을 열 활성화라고 하며, BaCO3, CaCO3, SrCO3가 BaO+CO2, CaO+CO2, SrO+CO2로 분해되고, 이때 CO2는 개스로 방출되어 게터에 흡착된다.The mixed carbonate (9) is decomposed when heat is transferred from the heater (4), wherein the process of pyrolysis is called thermal activation, BaCO 3 , CaCO 3 , SrCO 3 BaO + CO 2 , CaO + CO 2 , decomposes into SrO + CO 2, where CO 2 is released as a gas and adsorbed to the getter.

그리고, 잔류되어 있는 BaO, CaO, SrO는 캡(10)내에 들어있는 Mg, Si 등과 환원 작용을 하는데, BaO+Mg가 free Ba+MgO, 2BaO+Si가 2free BaO+SiO2로 되고, 전류 활성화는 전자총의 전극에 전류를 흐르게 하여 잔재된 개스의 방출을 촉진시켜서 제거하며, 음극부에서의 활성화된 전자들이 안정적으로 방출되도록 하는 작용을 하게된다.The remaining BaO, CaO, and SrO react with Mg, Si, etc. contained in the cap 10, and BaO + Mg becomes free Ba + MgO and 2BaO + Si becomes 2free BaO + SiO 2 , and current is activated. The current flows to the electrode of the electron gun to promote the removal of the residual gas to be removed, and to act to ensure that the activated electrons in the cathode portion is released stably.

한편, 음극부의 구성 부품들은 탄산염(9)을 제외한 모든 부품이 금속재이므로 열전도가 매우 잘 되는데, 캡(10)은 니켈재로 되어 있어서 고온 강도가 높고, 열전도가 빠르며, 슬리이브(2)는 니크롬으로 크롬이 약 20% 포함된 니켈로 구성되어 열전달 통로의 역할을 하고, 슬리이브(2)를 지지하기 위한 홀더(1a)는 니켈이나 코바르재질로 제작된다.On the other hand, since the components of the negative electrode portion are all metal parts except the carbonate (9), the thermal conductivity is very good, the cap 10 is made of nickel material, high temperature strength, high thermal conductivity, the sleeve 2 is nichrome In this case, the chromium is composed of nickel containing about 20%, and serves as a heat transfer path, and the holder 1a for supporting the sleeve 2 is made of nickel or covar material.

그러나, 이와같은 종래 음극선관용 음극부의 슬리이브(2)하단과 홀더(1a)상단 외주면의 고정부재(8)는 면접촉되어 결합되어 있으므로 히터(4)에서 전달받은 열이 슬리이브(2)를 통해 홀더(1a), 음극 지지체(5)와 지지 부재(6)를 거쳐서 비드 글래스(7)로의 열손실이 발생하게 되며, 이 열손실로 인하여 음극부의 온도가 불안정하게 됨에 따라 에미션(Emission) 특성이 저하되고, 히터(4)의 설계시 제약이 따라 음극부를 절전형으로 변경하기가 어렵게 되는 등의 많은 문제점이 있었다.However, since the fixing member 8 at the lower end of the sleeve 2 of the cathode portion of the conventional cathode ray tube and the outer peripheral surface of the upper portion of the holder 1a are coupled in surface contact, the heat transferred from the heater 4 causes the sleeve 2 to be removed. Through the holder (1a), the negative electrode support 5 and the support member 6 through the heat loss to the bead glass 7 is generated, the heat loss caused by the temperature of the negative electrode portion is unstable (Emission) There have been many problems such as deterioration in characteristics and difficulty in changing the cathode portion to a power saving type due to restrictions in the design of the heater 4.

본 발명은 상기한 제반 문제점을 해결하기 위한 것으로서, 음극선관의 음극부에 내장된 히터의 열이 슬리이브를 통해 홀더로 전도되어 발생되는 열손실을 최소화하므로써 음극부의 온도를 안정된 상태로 유지시켜 에미션 특성을 향상시킬 수 있을 뿐만 아니라 음극부를 절전형으로 설계할 수 있는 음극선관의 홀더와 슬리이브 결합구조를 제공하는데 그 목적이 있다.The present invention is to solve the above problems, by minimizing the heat loss generated by the heat of the heater is built in the cathode portion of the cathode ray tube to the holder through the sleeve to keep the temperature of the cathode portion in a stable state Emmy It is an object of the present invention to provide a holder and sleeve coupling structure of a cathode ray tube that can improve the shunt characteristics as well as design the cathode portion in a power-saving manner.

상기한 목적을 달성하기 위해 본 발명은 홀더에 슬리이브에서 홀더의 방향으로 전도되는 열을 최소화하기 위하여 슬리이브와 결합되는 고정편이 형성된 음극선관의 홀더와 슬리이브 결합구조이다.In order to achieve the above object, the present invention is a holder and sleeve coupling structure of the cathode ray tube formed with a fixing piece coupled to the sleeve to minimize the heat conducted to the holder in the direction of the holder in the sleeve.

이하, 본 발명의 일실시예를 첨부도면 제3도 및 제4도를 참조하여 상세히 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 3 and 4 of the accompanying drawings.

제3도는 본 발명에 따른 음극부를 나타낸 종단면도이고, 제4도는 제3도의 홀더를 나타낸 사시도로서, 음극선관에 설치되는 음극부의 니켈이나 코바르재로된 홀더(1)의 상단 외주면에 소정 간격으로 돌출되어 슬리이브(2)에서 홀더(1)의 방향으로 전도되는 열을 최소화하기 위하여 슬리이브(2)의 하단과 결합되는 복수개의 고정편(3)이 형성되고, 고정편(3)의 길이(L)는 약 0.5~4㎜, 폭(W)은 약 0.5~1.5㎜, 두께(C)는 홀더(1)와 동일하게 형성되어 구성된다.FIG. 3 is a longitudinal sectional view showing a cathode part according to the present invention, and FIG. 4 is a perspective view showing a holder shown in FIG. 3, with a predetermined interval on the upper circumferential surface of the holder 1 made of nickel or cobar material of the cathode part installed in the cathode ray tube. A plurality of fixing pieces (3) are formed to be combined with the lower end of the sleeve (2) in order to minimize the heat that is projected in the direction of the holder (1) in the sleeve (2), The length L is about 0.5-4 mm, the width W is about 0.5-1.5 mm, and the thickness C is formed like the holder 1, and is comprised.

이와같이 구성된 본 발명은 제3도 및 제4도에 나타낸 바와 같이, 음극선관에 설치되는 음극부의 니켈이나 코바르재로 된 홀더(1)와 슬리이브(2)의 결합시 홀더(1)의 상단 외주면에 소정 간격으로 돌출되는 복수개의 고정편(3)이 형성되어 슬리이브(2)의 하단과 결합되므로 상기 슬리이브(2)와 홀더(1)의 내부에 설치된 히터(4)의 열이 슬리이브(2)에서 홀더(1)로 전도되어 발생되는 열손실을 상기 복수개의 고정편(3)이 최소화하여 슬리이브(2)에 열이 축적되므로 인해 히터(4)에서 전달받은 열의 효율을 약 8%정도 높일 수 있음과 동시에 전자 방출의 속도로 약 8Sec에서 5~6Sec 수준으로 신속하게 할 수 있어서 에미션 특성을 향상시킬 수 있게 된다.According to the present invention configured as described above with reference to FIGS. 3 and 4, the upper end of the holder 1 when the holder 1 and the sleeve 2 are made of nickel or covar material of the cathode part installed in the cathode ray tube. A plurality of fixing pieces 3 protruding at predetermined intervals are formed on the outer circumferential surface and are coupled to the lower ends of the sleeves 2 so that the heat of the heaters 4 installed inside the sleeves 2 and the holders 1 Since the plurality of fixing pieces 3 minimize heat loss generated by conduction from the eve 2 to the holder 1, heat is accumulated in the sleeve 2, thereby reducing the efficiency of the heat transferred from the heater 4. At the same time, it can be increased by about 8% and at the speed of electron emission, it can be rapidly increased from about 8Sec to 5 ~ 6Sec level, thereby improving the emission characteristics.

또한, 음극부의 표준 온도는 히터(4)와 전압이 6.3V일 때 약 785℃가 요구되는데, 본 발명의 홀더(1)를 적용할 경우에는 동일한 인가 전압에서 약 60℃가 상승하여 약 845℃까지 올라가게 되는데, 이러한 상승은 결국 슬리이브(2)의 열 전도손실이 적다는 것을 의미하며 히터(4)의 설계시 매우 유리하고, 종래의 6.3V 680㎃의 히터(4) 전압에서 6.3V 300㎃의 절전형 음극부로 용이하게 설계할 수 있는 효과가 있다.In addition, the standard temperature of the cathode portion is required to be about 785 ℃ when the heater 4 and the voltage is 6.3V, when the holder 1 of the present invention is applied, about 60 ℃ rises to about 845 ℃ at the same applied voltage This rise means that the heat conduction loss of the sleeve 2 is low, which is very advantageous in the design of the heater 4, and is 6.3V at the heater 4 voltage of the conventional 6.3V 680㎃. 300 watt power-saving cathode has an effect that can be easily designed.

이상에서와 같이, 본 발명은 음극선관에 설치되는 음극부의 홀더(1)상단 외주면에 소정 간격으로 돌출되어 슬리이브(2)의 하단과 결합되는 복수개의 고정편(3)이 형성되므로써 히터(4)의 열이 슬리이브(2)를 통해 홀더(1)로 전도되어 발생되는 열손실을 최소화할 수 있으므로 인해 음극부의 온도를 안정된 상태로 유지시켜 에미션 특성을 증대시킬 수 있음과 동시에 음극부의 설계 자유도를 확대하여 용이하게 절전형으로 설계할 수 있는 등의 많은 장점이 구비된 매우 유용한 발명이다.As described above, according to the present invention, a plurality of fixing pieces 3 are formed on the outer circumferential surface of the upper portion of the holder 1, which is installed in the cathode ray tube, at a predetermined interval to be coupled to the lower end of the sleeve 2 so that the heater 4 is formed. Heat loss caused by conduction of heat to the holder 1 through the sleeve 2 can be minimized, so that the temperature of the cathode can be maintained in a stable state and the emission characteristics can be increased. It is a very useful invention with many advantages, such as being able to easily design a power saving type by expanding the degree of freedom.

Claims (2)

홀더에 슬리이브에서 홀더의 방향으로 전도되는 열을 최소화하기 위하여 슬리이브와 결합되는 고정편이 형성된 것을 특징으로 하는 음극선관의 홀더와 슬리이브 결합구조.The holder and sleeve coupling structure of the cathode ray tube, characterized in that the holder is formed with a fixing piece coupled to the sleeve to minimize the heat conducted in the direction of the holder in the sleeve. 제1항에 있어서, 상기 홀더의 상단 외주면에 소정 간격으로 복수개가 형성된 고정편의 길이는 약 0.5~4㎜, 폭은 약 0.5~1.5㎜, 두께는 홀더와 동일하게 형성된 음극선관의 홀더와 슬리이브 결합구조.The holder and the sleeve of the cathode ray tube of claim 1, wherein a plurality of fixing pieces are formed on the outer circumferential surface of the upper end of the holder at predetermined intervals of about 0.5 to 4 mm, a width of about 0.5 to 1.5 mm, and a thickness thereof is the same as the holder. Coupling structure.
KR1019950037376A 1995-10-26 1995-10-26 Cathode ray tube KR0179118B1 (en)

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KR0179118B1 true KR0179118B1 (en) 1999-03-20

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