JPH03263740A - Cathode-ray tube device - Google Patents
Cathode-ray tube deviceInfo
- Publication number
- JPH03263740A JPH03263740A JP6307790A JP6307790A JPH03263740A JP H03263740 A JPH03263740 A JP H03263740A JP 6307790 A JP6307790 A JP 6307790A JP 6307790 A JP6307790 A JP 6307790A JP H03263740 A JPH03263740 A JP H03263740A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- metal body
- panel face
- stress
- crt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011521 glass Substances 0.000 claims abstract description 45
- 239000002184 metal Substances 0.000 claims abstract description 32
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 14
- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 208000031481 Pathologic Constriction Diseases 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
Description
〔産業上の利用分野〕
この発明は、TVなどに用いられる陰極線管装置(以下
CRTと称す〉に関するものである。
〔従来の技術〕
第5図は一般に使用されているCRTの要部を一部破断
して示す側面図である。図において、(1)は前面に設
けられたパネルフェース(1a)とこれにつながる側部
のパネルスカート(1b)とにより構成されるパネル、
(2a)はファンネルである。パネル(1)とファンネ
ル(2a)とは何れもガラス製であり、両者はガラス半
田であるフリットガラス(3〉によって接合されている
。
(4)はパネルスカート(lb)に巻き付けられた金属
製バンドである。なお、後方には電子銃を内蔵するネッ
クを有するが、この図では省略されている。この例では
、パネルフェース(la)とネックとの間に介在する側
壁はパネルスカート(lb)とファンネル(2a)とに
よって構成されている。また、(7)はパネルスカート
(1a)の内面に形成された蛍光スクリーンである。
次に動作について説明する。 CRTの内部を真空にす
る時、CRT表面の大部分では圧縮応力を生ずるが、第
6図の斜線で示した領域、すなわちCRTの前面周縁部
と側面の一部では引張応力を生ずる6第6図4;1CR
Tの域ω要部を画いkもQ)“Cある。
ガラスは、11.縮め力下では高い強冷をホ4゛が引張
応力下では強度が低い、特に外表面は製造時などに微細
tl傷な生じ・や4く、これが引張強度低訃の主要因と
な−p”(いる。したが)(″、ガラ、2.製C■1′
では、CRT表向には極力引張応力が生じひいよ・)に
配慮している6しかし、力形に迦り、ThCRTでは、
第6図iJ示ず斜線領域に依然之、L を引張症、力が
作用している。また、一方バネ、ル(1)ど7アンネル
(2a)ti;Itフッリトガフス(3)ア接合される
たぬ、接右時の熱にJ、り接合部j7]”傍には高い残
留応力が生じる。きらに、こ、のソリツし接合部は、1
証したよりに真窄による引張Lt、力究牛領域C=#′
)一部含まt1又いる。
[発明が解決し2ようとニー46課題]従来のCRTG
;i以1〜.o)よりにすべて強化されでいないガラス
製であるため、ガラスの板FFI 本増ツ゛172二に
よ・〕て応力を低下きせる必要がある。(のため、持に
大形にjJCRTではガラスの板厚が非常cr:厚くな
り、重量が増加するという問題点があ−,) IS。
さらに、フリットガラスに、よる接合部G:′ば、払合
時の熱(、コより高い残留心力が/1−しる2′共番、
”一部にはこれ!1”真ゆ時の引張応力も加わって強瓜
゛土間顯どなっている。
tにJAS、まに別な従来例としで、持分昭56・34
!□’183号公報に示されている第7図ωような側壁
(2)が金属製であるCRTがあるが、このようなCR
I’を真空にした時、ガラス製バネルフェ・−ス(+、
f、l] )の周縁部では外表面に引張力を生じ、既
述の今ガラス製CRT E同様の問題をイ」−・する。
また、1−記金属側壁製CRTでは、側壁(2)ヒバネ
ルフX・−ス(la)hを到着しでいるフリットガラス
(3)に高い応力を牛じるという問題点もあるこの発明
は上記のような問題点を解消するためC,こなs t’
+にもので、軽量で、しかも引張応力下でも強電の高い
CR1’を得ることを目的どする6[課題を解決するた
め0手段1
この発明に係るCRTは、パネルフェースの周縁部およ
び少なくεもこの周縁部につながる側壁の一部を厚さ方
向にガラスを包まない金属体で形成し、さらに金属体と
ガラスの接合部周辺とのガラス体に強化繊維を埋設した
ものである。
(作用]
この発明におけるCRTでは、表面に引張応力を生じる
部分にガラスに比べて引張強度の高い金属を使用してい
るため、神jハ板厚で所望の強度を持つごどができると
Aに、フリット接合部周辺のガラス体Gご強化繊維を埋
設置ることによすρ、j応力発生部分のガラス体の強度
を高めることができる。
〔実施例j
以下、この発明の一実施例を図について説明ケる。第1
図は部分断面図であり、前記様*のものと同一または相
当部分には同−n号を付して説明な省略する1図におい
で、、(1,c)はパネルフ】−ス(1a)の周縁部お
よびこω周縁部につながる側壁を形成する金属体eあり
、この例では側型(2)全体ではなくすなわち第5図の
従来例で示したファンネル(2a)の前部まで金属体で
形成されている。(1d)はバネルフ2ミ・−ス(1a
)の一部で金属体(lc)との接合部を形成しかつ蛍光
スクリーン(7)より外周にあって強化ffl維を埋没
したガラス体、(2<1 )は金属体(le)の後部に
m=)ながるガラス体(2b)の一部で金属体(1c)
との接合部を形成しかつ強化繊維を埋設したガラス体で
ある6パネルフエース(1a)の中央部4なわち映像が
映し出される部分は例えばF、IAj(0本電子機械工
業会)のH8602祠等のガラスで形成きれており、そ
の外周部である強化繊II′’J!設部(1d)には例
えば炭化ケイ素の短繊軒tなどが強化mMどしで用いら
れる。また、金属体(l c )の後部につながる強化
繊維埋設部(2d)についても同様である。金属体(1
c)どしては1・記ガラスに熱膨張係数が近(、しがも
真ゆ峙σ)ガラスの発生が少ない例えば炭素鋼等が用い
られる。また、強化繊維埋設部(ld)、(2d)と金
属体く1c)とけフリットガラス(3)により接合され
ている。なお1.パネルフェース(la)の前面には、
樹脂(5)を介して防熾用の前動ガウス(6)が設けら
れているが、この前面ガラス(6)は万−CRTが破壊
した場合にもパネルフェース(l a)のガラス部が前
方に飛散するのを防止するための付加的なものである0
例えば小型のCRTにおいては、破壊時のエネルギーが
小さいので、前面ガラス(6)は設けない場合もある。
なお、図示していないが、金属体(1c)の外表面には
すべて絶縁のため被覆が施されているこのような構成を
有するCRTの内部を真空にする時、C17表面には第
2図に示す様な応力分布を生ずる。すなわち、パネルフ
ェース(1a)のガラス部分および金属体(IC)の後
部につながるガラス部分の表面はすべて圧縮応力となっ
ている、パネルフェース(1a)の前面周縁部では引張
応力を生じているが、この部分は金属製であるため、許
容応力を高くすることが出来、したがって板厚を薄くす
ることができる。また、ガラス金属体(IC)とをフリ
ットガラス(3)で接合すると、接合部近傍に高い残留
応力が生じるが、その高応力発生箇所に強化繊維を埋設
することにより、所要部の強度を高め、信頼性を向上さ
せることができる。
なお、上記実施例では金属体(1c)を従来例のファン
ネル(2a)の前部までとしたが、ファンネル(2a)
全体としてもよく、この場合には第3図に示すように金
属体(lc)とネック(8)との接合周辺のガラス体に
強化繊維埋設部(8d)を設けるとよい。
また、第4図に示すように金属体(lc)を従来例のパ
ネルスカート(lb)t:でとし、金属体(l c)と
従来例のファンネル(2a)の接合部周辺とのガラス体
に強化繊維埋設部(2d)を設けてもよい。[Industrial Application Field] The present invention relates to a cathode ray tube device (hereinafter referred to as CRT) used in TVs, etc. [Prior Art] Figure 5 shows the main parts of a commonly used CRT. It is a side view partially cut away. In the figure, (1) is a panel composed of a panel face (1a) provided at the front and a panel skirt (1b) at the side connected to the panel face (1a),
(2a) is a funnel. Panel (1) and funnel (2a) are both made of glass, and they are joined by glass solder (3). Panel (4) is made of metal wrapped around the panel skirt (lb). The band has a neck at the rear that houses an electron gun, but it is omitted in this figure.In this example, the side wall interposed between the panel face (la) and the neck is a panel skirt (lb ) and a funnel (2a).Furthermore, (7) is a fluorescent screen formed on the inner surface of the panel skirt (1a).Next, the operation will be explained.When the inside of the CRT is evacuated , a compressive stress is generated on most of the CRT surface, but a tensile stress is generated in the shaded area in FIG.
Delineating the main part of the region ω of T, k is also Q) “C.Glass is 11. Strongly cooled under compressive force, but has low strength under tensile stress.Especially, the outer surface is Fine tl scratches occur, and this is the main cause of low tensile strength.
However, when it comes to the shape of the force, in ThCRT,
In the shaded area (not shown in Figure 6), a tensile force is still acting on L. In addition, on the other hand, there is a high residual stress near the joint part j7] due to the heat generated when the spring is connected to the spring. This occurs.The solid joint of Kirani, this, is 1
As evidenced, the tension Lt due to true stenosis, the strength range C = #'
) Some of them include t1. [46 problems to be solved by the invention] Conventional CRTG
;i more than 1~. (o) Since they are all made of unreinforced glass, it is necessary to reduce the stress by adding a glass plate FFI (1722). (Therefore, there is a problem that the glass plate thickness becomes extremely thick and the weight increases in JJCRT as it becomes larger.) IS. Furthermore, the joint part G due to the frit glass:
``Part of it is this!''Mayutoki's tensile stress is also added, and the face of the doma is stiff. JAS in T, as a different conventional example, equity interest
! □There is a CRT whose side wall (2) is made of metal as shown in Figure 7 ω shown in the '183 publication.
When I' is evacuated, the glass panel face (+,
A tensile force is generated on the outer surface at the peripheral edge of the glass CRT E, which causes the same problem as that of the glass CRT E described above. In addition, in the CRT made of metal side walls described in 1-1, there is a problem in that high stress is applied to the frit glass (3) that has arrived at the side wall (2). In order to solve problems such as C, kona s t'
A CRT according to the present invention is lightweight and has a high electric current even under tensile stress. Also, a part of the side wall connected to the peripheral edge is formed of a metal body that does not enclose the glass in the thickness direction, and reinforcing fibers are embedded in the glass body around the joint between the metal body and the glass. (Function) In the CRT according to the present invention, a metal having a higher tensile strength than glass is used in the part that generates tensile stress on the surface, so it is possible to achieve the desired strength with a plate thickness. By embedding reinforcing fibers in the glass body G around the frit joint, it is possible to increase the strength of the glass body in the stress generation area. Explain the diagram.First
The figure is a partial cross-sectional view, and in Figure 1, the same or equivalent parts as those in * above are marked with the same number and the explanation is omitted. ), and a metal body e forming a side wall connected to the peripheral edge of ω. formed by the body. (1d) is Banelf 2 Myth (1a
) forms a joint with the metal body (lc) and is located on the outer periphery of the fluorescent screen (7) and has reinforced ffl fibers embedded in it; (2<1) is the rear part of the metal body (le) The metal body (1c) is a part of the glass body (2b) that leads to m = ).
The central part 4 of the 6-panel face (1a), which is a glass body with reinforcing fibers embedded in it, which forms the joint with The reinforced fiber II''J! For the installation part (1d), for example, silicon carbide short fiber eaves t or the like is used with reinforcement mm. The same applies to the reinforcing fiber buried portion (2d) connected to the rear part of the metal body (l c ). Metal body (1
c) For example, a material such as carbon steel, which has a thermal expansion coefficient close to that of the glass described in 1. (and has a coefficient of thermal expansion σ) and which is less likely to generate glass, is used. In addition, the reinforcing fiber embedded portions (ld) and (2d) are joined to the metal body (1c) by melting frit glass (3). Note 1. On the front of the panel face (la),
A front movable Gauss (6) for protection is provided through a resin (5), and this front glass (6) will protect the glass part of the panel face (l a) even if the CRT is destroyed. This is an additional item to prevent it from scattering forward.
For example, in a small CRT, the front glass (6) may not be provided because the energy at the time of destruction is small. Although not shown, when the inside of a CRT having such a structure, in which all the outer surfaces of the metal body (1c) are coated for insulation, is evacuated, the C17 surface is covered with a coating as shown in Fig. 2. This results in a stress distribution as shown in . In other words, the surfaces of the glass part of the panel face (1a) and the glass part connected to the rear of the metal body (IC) are all under compressive stress, whereas the front peripheral edge of the panel face (1a) is under tensile stress. Since this part is made of metal, the allowable stress can be increased, and the plate thickness can therefore be reduced. Furthermore, when a glass-metal body (IC) is joined with frit glass (3), high residual stress occurs near the joint, but by embedding reinforcing fibers in the areas where high stress occurs, the strength of the required parts is increased. , reliability can be improved. In addition, in the above embodiment, the metal body (1c) extends to the front part of the funnel (2a) in the conventional example, but the funnel (2a)
It may be made as a whole, and in this case, as shown in FIG. 3, it is preferable to provide a reinforcing fiber embedded portion (8d) in the glass body around the joint between the metal body (lc) and the neck (8). In addition, as shown in Fig. 4, the metal body (lc) is connected to the panel skirt (lb) of the conventional example, and the glass body is connected around the joint of the metal body (lc) and the conventional funnel (2a). A reinforcing fiber buried portion (2d) may be provided.
以上のように、この発明によればパネルフェースの周縁
部および少なくともこの周縁部につながる側壁の一部を
厚さ方向にガラスを包まない金属体で形成し、さらに金
属体とガラス部周辺とのガラス体に強化繊維を埋設した
ので、軽量でしかも接合部の残留応力や引張応力に対し
ても強度の信頼性が高いCRTを得ることができるとい
う効果が得られる。As described above, according to the present invention, the peripheral edge of the panel face and at least a part of the side wall connected to this peripheral edge are formed of a metal body that does not enclose the glass in the thickness direction, and furthermore, the metal body and the periphery of the glass part are formed. Since the reinforcing fibers are embedded in the glass body, it is possible to obtain a CRT that is lightweight and has high reliability in strength against residual stress and tensile stress at the joints.
第1図はこの発明の一実施例による陰極線管装置の要部
を示す断面図、第2図は第1図に示す陰極線管装置の応
力分布の様子を示す説明図、第3図、第4図はそれぞれ
この発明の他の実施例による陰極線管装置の要部を示す
断面図、第5図は従来の陰極線管装置の一例の要部を一
部破断して示す側面図、第6図は第5図のもののHの要
部における応力分布の様子を示す説明図、第7図は従来
の陰極線管装置の他の例の要部を示す断面図である。
図において、(1a)はパネルフェース、(1b)はパ
ネルスカート、(1c)は金属体、(1d)、(2d)
、(8d)は強化繊維埋設のガラス体、(2)は側壁、
(2a)はファンネル、(2b)は側壁のガラス部分、
(3)はフリットガラス、(5)は摺脂、(7)は蛍光
スクリーン、(8)はネックである。
なお、各図中同一符号は同一または相当部分を示す。FIG. 1 is a sectional view showing essential parts of a cathode ray tube device according to an embodiment of the present invention, FIG. 2 is an explanatory diagram showing the state of stress distribution in the cathode ray tube device shown in FIG. 1, and FIGS. The figures are respectively a sectional view showing the main parts of a cathode ray tube device according to another embodiment of the present invention, FIG. FIG. 5 is an explanatory diagram showing the state of stress distribution in the main part of H in the one shown in FIG. 5, and FIG. 7 is a sectional view showing the main part of another example of the conventional cathode ray tube device. In the figure, (1a) is the panel face, (1b) is the panel skirt, (1c) is the metal body, (1d), (2d)
, (8d) is a glass body with embedded reinforcing fibers, (2) is a side wall,
(2a) is the funnel, (2b) is the glass part of the side wall,
(3) is the frit glass, (5) is the resin paste, (7) is the fluorescent screen, and (8) is the neck. Note that the same reference numerals in each figure indicate the same or corresponding parts.
Claims (1)
れるパネルフェース、後方に設けられて電子銃を内蔵す
るネック、および前記パネルフェースとネックとの間に
介在する側壁を備え、前記パネルフェースの周縁部およ
び少なくともこの周縁部につながる側壁の一部を厚さ方
向にガラスを包まない金属体で形成し、この金属体以外
はガラスで構成され、内部を真空に保つ陰極線管装置に
おいて、前記金属体とガラスの接合部周辺とのガラス体
に強化繊維を埋設したことを特徴とする陰極線管装置。(1) A panel face provided at the front and having a fluorescent screen formed on the inner surface, a neck provided at the rear and containing an electron gun, and a side wall interposed between the panel face and the neck, and the panel face In the cathode ray tube device, the peripheral edge of the tube and at least a part of the side wall connected to the peripheral edge are made of a metal body that does not enclose glass in the thickness direction, and the rest of the cathode ray tube device is made of glass, and the interior is kept in a vacuum. A cathode ray tube device characterized in that reinforcing fibers are embedded in the glass body around the joint between the metal body and the glass.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6307790A JP2646789B2 (en) | 1990-03-13 | 1990-03-13 | Cathode ray tube device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6307790A JP2646789B2 (en) | 1990-03-13 | 1990-03-13 | Cathode ray tube device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH03263740A true JPH03263740A (en) | 1991-11-25 |
JP2646789B2 JP2646789B2 (en) | 1997-08-27 |
Family
ID=13218914
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6307790A Expired - Lifetime JP2646789B2 (en) | 1990-03-13 | 1990-03-13 | Cathode ray tube device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2646789B2 (en) |
-
1990
- 1990-03-13 JP JP6307790A patent/JP2646789B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2646789B2 (en) | 1997-08-27 |
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