KR920005763Y1 - Cathode structure frame in electron tube - Google Patents
Cathode structure frame in electron tube Download PDFInfo
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- KR920005763Y1 KR920005763Y1 KR2019870014284U KR870014284U KR920005763Y1 KR 920005763 Y1 KR920005763 Y1 KR 920005763Y1 KR 2019870014284 U KR2019870014284 U KR 2019870014284U KR 870014284 U KR870014284 U KR 870014284U KR 920005763 Y1 KR920005763 Y1 KR 920005763Y1
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- heater
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/04—Cathodes
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- Electrodes For Cathode-Ray Tubes (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안의 단면도.1 is a cross-sectional view of the present invention.
제2도는 종래의 단면도.2 is a conventional cross-sectional view.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
31 : 내향 돌출판31: inward protrusion plate
본 고안은 음극 및 음극지지체로 구성된 전자관용 음극구조체에 관한 것으로 특히, 절전형 전자관에 적당하도록 안출된 것이다.The present invention relates to a cathode structure for an electron tube composed of a cathode and a cathode support, and is particularly suitable for power-saving electron tubes.
종래의 전자관용 음극구조체의 구성에 대하여 제2도에 대해 설명하면 먼저 음극(2)는 음극캡(21)과 음극 슬리이브(22) 및 음극홀더(23)을 구비하고 히이터(1)을 온(ON)하였을시 전자관 스크린상에 화상이 출현할때까지의 시간을 출화시간이라할때 출화시간을 빠르게 하기 위하여 음극슬리이브(22) 부분은 CrNi의 합금을 사용하고 Cr을 산화시켜 흑화처리 하게 된다.Referring to FIG. 2 for the structure of a conventional cathode tube structure for an electron tube, first, the cathode 2 includes a cathode cap 21, a cathode sleeve 22, and a cathode holder 23, and turns on the heater 1. When it is turned on, the time until the image appears on the electron tube screen is called the firing time. In order to speed up the firing time, the cathode sleeve 22 portion is made of an alloy of CrNi and oxidized Cr to blacken. do.
그러나, 절전형 전자관용 음극슬리이브(22)는 히이터(1)의 열이 음극(2)으로부터 쉽게 흡수, 방출되지 않도록 하기 위하여 음극 슬리이브(22)를 흑화처리하지 않고 건조 수소 가스중에서 환원처리하게 되며 히이터(1)의 외경을 최소로 하고 히이터(1)에 의해 음극(2)의 내경을 최소로하여 히이터(1)열을 음극(2)으로부터의 방출을 최소화하고 있다.However, in order to prevent the heat of the heater 1 from being easily absorbed and released from the cathode 2, the cathode-type cathode tube 22 for energy saving type tube can be reduced in dry hydrogen gas without blackening. The outside diameter of the heater 1 is minimized, and the inside diameter of the cathode 2 is minimized by the heater 1 to minimize the heat of the heater 1 from the cathode 2.
이렇게 구성된 음극(2)은 음극캡(21)의 상면부에 BaCO3을 주성분으로하는 전자방사물질층(24)을 스프레이등의 방법에 의해 부착시키게 된다.The cathode 2 configured as described above attaches the electron emitting material layer 24 containing BaCO 3 as a main component to the upper surface of the cathode cap 21 by spraying or the like.
또한, 음극 지지체(3)와 환상절연체(4)로 구성된 절연구조체는 유리봉착(41) 및 크램핑 방법등에 의해 구성되어진다.In addition, the insulating structure composed of the negative electrode support 3 and the annular insulator 4 is constituted by the glass sealing 41 and the clamping method.
음극지지체(3)용접에 의해 원통형으로 되어 있으며, 음극(2)의 음극홀더(23)와 용접에 의해 음극구조체를 구성시키게 된다.It is cylindrical by welding the negative electrode support 3, and the negative electrode structure is constructed by welding with the negative electrode holder 23 of the negative electrode 2.
이렇게 구성된 음극구조체는 스판세트공정을 통하여 전자총에 부착되어지고 봉지 및 배기, 활성화 공정을 통하여 전자방사물질층(24)이 분해하게되고 음극캡(21)중의 환원제와 산화환원반응을 일으켜 음극(2)으로부터 전자가 방출할수 있게 되어진다.The negative electrode structure thus constructed is attached to the electron gun through a span set process, and the electron emitting material layer 24 is decomposed through the encapsulation, exhaust, and activation processes, and a redox reaction occurs with a reducing agent in the negative electrode cap 21. Electrons can be emitted.
이상과 같이 구성된 종래의 동작을 설명하면 다음과 같다.The conventional operation configured as described above is as follows.
먼저 히이터(1)를 온(ON)하게되면 히이터(1)의 열은 약 2초이내에 정상온도에 도달하게 되고 히이터(1)의 열은 음극슬리이브(22)의 음극캡(21) 음극홀더(23)방향으로 전도 및 방출되어지고 음극 슬리이브(22)에 전도된 열은 음극캡(21)으로 다시 전도되어 전자방사물질중(24)으로 부터 전자가 방출하도록 하고, 일부의 열은 음극홀더(23)부분으로 전도되어 외부로 방출되어진다.First, when the heater 1 is turned on, the heat of the heater 1 reaches a normal temperature within about 2 seconds, and the heat of the heater 1 is the cathode holder of the cathode cap 21 of the cathode sleeve 22. Heat conducted and released in the (23) direction and conducted to the cathode sleeve 22 is conducted back to the cathode cap 21 to allow electrons to be emitted from the electron radiating material 24, and some of the heat is negative. It is conducted to the part of the holder 23 and discharged to the outside.
또한 일부의 열은 음극지지체(3)방향으로 방출되어지는데, 음극지지체(3)방향으로 방출된 열은 다시 음극(2)과 음극 지지체(3)사이의 공간을 통하여 외부로 방출되어진다.In addition, some of the heat is released in the direction of the negative electrode support 3, the heat released in the direction of the negative electrode support 3 is released to the outside through the space between the negative electrode 2 and the negative electrode support (3) again.
음극캡(21)에 전도된 열은 전자방사물질을 가열하게 되고 활성화 공정으로부터 BaCO3가 주성분인 탄산염이 산화염으로 변하고 BaO가 주성분인 산화염은 아래 반응식과 같이 음극캡(21)중의 환원제(주로 Mg)와 반응하여 자유 Ba을 형성시킨다.Heat conducted to the negative electrode cap 21 heats the electron-emitting material, and from the activation process, the carbonate salt containing BaCO 3 as a main component is converted into an oxidized salt, and the oxide salt containing BaO as a main component is a reducing agent (mainly Mg) in the negative electrode cap 21 as shown in the following reaction formula. ) To form free Ba.
이렇게 형성된 자유 Ba은 다시 열에 의해 아래의 반응식과 같이 전자를 방출하게 된다.The free Ba thus formed again emits electrons by heat as shown in the following equation.
이와같이 히이터(1)의 열은 음극캡(21)상면부에 부착되어 있는 전자방사물질층(24)으로부터 전자를 방출하게 하는데, 음극캡(21)으로 전도되는 열이외의 음극(2)의 측면 및 하부방향과 음극과 음극지지체 사이의 공간으로 방출하는 열이 많아 결국음극캡의 온도를 정상적으로 유지하기 위해서는 히터(1)의 정격을 불필요하게 상승시켜야 하는 문제점이 발생되는 것이었다.As such, the heat of the heater 1 causes electrons to be emitted from the electron-emitting material layer 24 attached to the upper surface of the negative electrode cap 21, and the side of the negative electrode 2 other than the heat conducted to the negative electrode cap 21. And there is a lot of heat emitted to the space between the lower direction and the negative electrode and the negative electrode support has a problem that must increase the rating of the heater 1 unnecessarily in order to maintain the temperature of the negative electrode cap normally.
따라서, 본 고안은 음극슬리이브 측면으로 방출되는 히이터의 열을 음극과 음극지지체의 사이를 통하여 쓸데없이 방출되는 열을 감소시켜 히이터의 열이 음극 슬리이브를 통하여 음극캡(21)에 효율적으로 전도시켜 음극캡의 온도를 정상적으로 유지시키는데, 다시 말하면 히이터의 정격을 종전보다 낮추는데 그 목적이 있는 것이다.Accordingly, the present invention reduces the heat of the heater discharged to the side of the negative electrode sleeve through the gap between the negative electrode and the negative electrode support to efficiently conduct the heat of the heater to the negative electrode cap 21 through the negative electrode sleeve. This is to maintain the temperature of the negative electrode cap normally, that is, the purpose of lowering the heater rating than before.
이하에서 이를 첨부도면에 의해 상세히 설명하면 다음과 같다.Hereinafter, described in detail by the accompanying drawings as follows.
먼저 음극(2)은 음극캡(21)과 음극슬리이브(22) 및 음극홀더(23)을 구비하고 충화시간을 빠르게 하기 위하여 음극슬리이브(22)부분을 Ni-Cr의 합금으로 Cr을 산화시켜 Cr2O3의 훅화처리를 하고, 음극캡(21)의 상면부에는 전자방사물질층(24)을 스프레이등의 방법으로 부착시켜 구성하게 된다.First, the negative electrode 2 includes a negative electrode cap 21, a negative electrode sleeve 22, and a negative electrode holder 23, and oxidizes Cr with an alloy of Ni-Cr in the negative electrode sleeve 22 in order to increase the charging time. The hooking treatment of Cr 2 O 3 is carried out, and the electron emitting material layer 24 is attached to the upper surface of the cathode cap 21 by spraying or the like.
또한 음극지지체(2)는 그 상단부에 내부방향으로 돌출판(31)을 구비시킨 원통형으로 전자총의 각 전극과 절연시키기 위해 환상절연체(4)와 유리봉착(41) 및 크램핑 방법에 의해 접속부착되어 절연구조체를 형성시키게 된다.In addition, the cathode support 2 is a cylindrical shape having a protruding plate 31 in the upper end thereof in an inward direction, and is connected and connected by an annular insulator 4, a glass seal 41, and a clamping method to insulate each electrode of the electron gun. To form an insulating structure.
이렇게 형성된 음극(2) 및 절연구조체는 하단 부분에 용접에 의해 접속되어지고 음극구조체를 형성시키게 된다.The cathode 2 and the insulating structure thus formed are connected to the lower portion by welding to form the cathode structure.
또한 음극슬리이브(22)의 처리에 있어서, 흑화처리를 하지 않고 건조수소가스등에 의해 환원처리하면 출화시간은 음극슬리이브(22)를 훅화처리한 음극(2)보다 다소 늦어지지만 보다 히이터(1)의 열을 음극캡(21)으로 전도시키는데 효율적이며 초절전형 음극구조체를 형성시킬수 있다.In the treatment of the cathode sleeve 22, if the reduction treatment is carried out by dry hydrogen gas or the like without blackening, the firing time is slightly later than that of the cathode 2 on which the cathode sleeve 22 is hooked. Efficient to conduct heat of the negative electrode to the negative electrode cap 21 and can form an ultra low-power type negative electrode structure.
이렇게 구성된 음극구조체는 스판세트공정을 통하여 전자층에 삽입부착되어지고 봉지배기활성화 공정을 통하여 음극(2)의 전자방사물질층(24)으로부터 전자가 방출할수 있게 된다.The cathode structure thus constructed is inserted and attached to the electron layer through a span set process, and electrons can be emitted from the electron emission material layer 24 of the cathode 2 through the encapsulation exhaust activation process.
이상과 같이 구성된 본 고안의 작용효과를 도면 제1도에 의해 설명하면 다음과 같다.Referring to Figure 1 the effect of the present invention configured as described above is as follows.
음극(2)의 내부에 삽입되어진 히이터(1)를 온하게되면 히이터의 열은 음극캡(21) 및 음극슬리이브(22), 음극홀더(23)방향으로 전도 및 방출되어지는데 음극 슬리이브(22)가 혹화처리가 되어 있는 경우 대부분의 히이터(1)의 열이 음극 슬리이브(22)에 흡수되어지고 음극슬리이브(22)의 열은 음극캡(21)으로 전도되어 음극캡(21)상면부에 부에 부착되어 있는 전자방사물질층(24)으로부터 전자를 방출할수 있도록 하고 있으며, 일부의 열은 음극홀더(23)로 전도되어 외부로 방출되기도 하나 히이터(1)의 열은 히이터머리부에서 발열되므로 음극슬리이브(22)의 측면을 통하여 음극지지체(3)방향으로 대부분 방출되어진다. 음극슬리이브(22)측면을 통하여 방출되어진 히이터(1)의 열은 음극지지체(3)의 상단부에 내향 돌출판(31)에 의해 종전과 같이 음극(2)과 음극지지체(3)사이의 공간을 통하여 윗부분으로 방출할수 없으며 히이터(1)의 열손실을 감소시킴으로 인해 히이터(1)의 열이 음극캡(21)으로 전도되는데 매우 효율적이다.When the heater 1 inserted into the cathode 2 is turned on, the heat of the heater is conducted and discharged in the direction of the cathode cap 21, the cathode sleeve 22, and the cathode holder 23. When heat treatment is performed at 22, most of the heat of the heater 1 is absorbed by the negative electrode sleeve 22, and the heat of the negative electrode sleeve 22 is conducted to the negative electrode cap 21 so that the negative electrode cap 21 is removed. The electron emitting material layer 24 attached to the upper part is allowed to emit electrons, and some heat is conducted to the cathode holder 23 and is emitted to the outside, but the heat of the heater 1 is the heater head. Since the heat is generated in the negative portion, most of the discharge is directed toward the negative electrode support 3 through the side of the negative electrode sleeve 22. Heat of the heater 1 discharged through the side of the negative electrode sleeve 22 is spaced between the negative electrode 2 and the negative electrode support 3 as before by the inward protrusion plate 31 at the upper end of the negative electrode support 3. It is not possible to discharge upward through the heat sink, and the heat loss of the heater 1 is reduced, so that the heat of the heater 1 is very efficient in conducting to the cathode cap 21.
음극캡(21)에 전도된 열은 전자방사물질층에 전도되고 활성화공정을 통하여 BaCO3가 주성분인 탄산염이 산화염으로 변하고 음극캡(21)중의 환원제와 산화 환원 반응에 의해 자유 Ba을 형성시키고 자유 Ba으로부터 전자가 방출되어진다.Heat conducted to the cathode cap 21 is conducted to the electron-emitting material layer, and the carbonate whose main component is BaCO 3 is converted into an oxidized salt through an activation process and forms free Ba by redox reaction with a reducing agent in the cathode cap 21. Electrons are released from Ba.
이상과 같이 구성되고 작용하는 본 고안은 음극 지지체 상단부에 내향돌출판을 구비시키므로서, 히이터의 열이 음극슬리이브의 측면을 통하여 음극지지체 방향으로 방출되고 이렇게 방출된 열이 음극과 음극지지체사이 공간을 통하여 윗부분으로 방출하는 것을 방지보호하고 있으므로 음극슬리이브의 측면을 통하여 쓸데없이 방출되는 히이터의 열을 감소시킬수 있으며 이로인해 히이터의 열은 보다 효과적으로 음극캡에 전도되어 히이터가 종전보다 낮은 정격에서도 음극캡의 온도는 정상적으로 유지시킬 수 있으며, 음극슬리이브(22)을 혹화처리 하지 않으면 보다 초절전형 음극구조체에 효과적이다.The present invention constructed and functioning as described above includes an inwardly projecting plate at the upper end of the negative electrode support, so that the heat of the heater is released toward the negative electrode support through the side of the negative electrode sleeve, and the heat thus released is space between the negative electrode and the negative electrode support. Since it prevents the upper part from being discharged to the upper part, it can reduce the heat of the heater that is unnecessarily discharged through the side of the cathode sleeve, so that the heat of the heater is more effectively conducted to the negative electrode cap so that the heater can be negatively charged even at a lower rating than before. The temperature of the cap can be maintained normally, and it is more effective for the ultra-low power type negative electrode structure unless the negative electrode sleeve 22 is processed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019870014284U KR920005763Y1 (en) | 1987-08-26 | 1987-08-26 | Cathode structure frame in electron tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019870014284U KR920005763Y1 (en) | 1987-08-26 | 1987-08-26 | Cathode structure frame in electron tube |
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| Publication Number | Publication Date |
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| KR890005665U KR890005665U (en) | 1989-04-20 |
| KR920005763Y1 true KR920005763Y1 (en) | 1992-08-21 |
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| KR2019870014284U KR920005763Y1 (en) | 1987-08-26 | 1987-08-26 | Cathode structure frame in electron tube |
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1987
- 1987-08-26 KR KR2019870014284U patent/KR920005763Y1/en not_active IP Right Cessation
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| KR890005665U (en) | 1989-04-20 |
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