JPH0142930Y2 - - Google Patents
Info
- Publication number
- JPH0142930Y2 JPH0142930Y2 JP1982164158U JP16415882U JPH0142930Y2 JP H0142930 Y2 JPH0142930 Y2 JP H0142930Y2 JP 1982164158 U JP1982164158 U JP 1982164158U JP 16415882 U JP16415882 U JP 16415882U JP H0142930 Y2 JPH0142930 Y2 JP H0142930Y2
- Authority
- JP
- Japan
- Prior art keywords
- cathode
- support
- conductive adhesive
- assembly
- spacer
- 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.)
- Expired
Links
- 239000000853 adhesive Substances 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 239000011521 glass Substances 0.000 description 11
- 238000003466 welding Methods 0.000 description 10
- 239000000919 ceramic Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910001120 nichrome Inorganic materials 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 229910000833 kovar Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
Description
【考案の詳細な説明】
この考案は陰極線管用電子銃構体、特にインラ
イン型電子銃構体の改良に関する。[Detailed Description of the Invention] This invention relates to an improvement of an electron gun assembly for a cathode ray tube, particularly an in-line type electron gun assembly.
陰極線管の動作は真空ガラスバルブ内の電子銃
から放射される熱電子を格子により制御、加速
し、パネルガラス内面に塗布された蛍光体層を衝
撃することにより所望の表示を得るものである。
従来陰極線管において、熱電子を放射する電極を
陰極と呼び、陰極を支持する電極を陰極支持体と
呼んでいる。第１図はインライン型電子銃の陰極
組立構造体の断面図である。第１図において、陰
極１と陰極支持体２は電気溶接等により互に溶接
されている。陰極支持体２は全周にわたりフリツ
トガラス等の非導電性接着材３を介してセラミツ
ク等のスペーサ４に固定されている。さらに、セ
ラミツク等のスペーサ４を第１格子電極５の中へ
挿入する。第１格子電極５にリテーナ６を電気溶
接等により溶接することにより、セラミツク等の
スペーサ４が第１格子電極５の中に固定される。 A cathode ray tube operates by controlling and accelerating thermionic electrons emitted from an electron gun inside a vacuum glass bulb using a grid and impacting a phosphor layer coated on the inner surface of the panel glass to obtain a desired display.
In conventional cathode ray tubes, the electrode that emits thermoelectrons is called a cathode, and the electrode that supports the cathode is called a cathode support. FIG. 1 is a sectional view of a cathode assembly structure of an in-line electron gun. In FIG. 1, a cathode 1 and a cathode support 2 are welded together by electric welding or the like. The cathode support 2 is fixed around its entire circumference to a spacer 4 made of ceramic or the like via a non-conductive adhesive 3 such as frit glass. Furthermore, a spacer 4 made of ceramic or the like is inserted into the first grid electrode 5. By welding the retainer 6 to the first grid electrode 5 by electric welding or the like, the spacer 4 made of ceramic or the like is fixed in the first grid electrode 5.
第２図は陰極支持体２の斜視図である。第２図
に示すように陰極支持体２は金属円筒により形成
されている。この陰極支持体２の材料組成はニク
ロムであり熱膨張係数は10.0×10-6である。第１
図に示したように陰極支持体２は全周にわたつて
フリツトガラス等の非導電性接着材３にて接着さ
れている。このフリツトガラス等の非導電性接着
材３の熱膨張係数は6.5×10-6である。材料組成
がニクロムの陰極支持体２とフリツトガラス等の
非導電性接着材３との熱膨張係数が異なる為動作
中にフリツトガラス等の非導電性接着材３から陰
極支持体２がはがれ、第１格子電極５との間隔が
変動し正確な電極間隔を得ることが出来なくなつ
たり、極端な場合は陰極１が第１格子電極５と短
絡する欠点があつた。 FIG. 2 is a perspective view of the cathode support 2. FIG. As shown in FIG. 2, the cathode support 2 is formed of a metal cylinder. The material composition of the cathode support 2 is nichrome, and the coefficient of thermal expansion is 10.0×10 -6 . 1st
As shown in the figure, the cathode support 2 is bonded all around with a non-conductive adhesive 3 such as frit glass. The coefficient of thermal expansion of the non-conductive adhesive 3 such as frit glass is 6.5×10 -6 . Because the thermal expansion coefficients of the cathode support 2, which has a material composition of nichrome, and the non-conductive adhesive 3, such as frit glass, are different, the cathode support 2 peels off from the non-conductive adhesive 3, such as frit glass, during operation, and the first grid The gap between the cathode 1 and the electrode 5 fluctuates, making it impossible to obtain an accurate electrode spacing, and in extreme cases, the cathode 1 may short-circuit with the first grid electrode 5.
この考案の目的は、陰極支持体とスペーサとを
フリツトガラス等の非導電性接着剤で固定した陰
極線管用電子銃構体において、陰極支持体の外周
にフリツトガラス等の非導電性接着材と同等の熱
膨張係数を持つ補助支持体を電気溶接等により溶
接することにより、陰極と第１格子電極との間隔
を正確に得る構造を提供するものである。 The purpose of this invention is to provide an electron gun assembly for a cathode ray tube in which a cathode support and a spacer are fixed with a non-conductive adhesive such as fritted glass. By welding an auxiliary support having a coefficient by electric welding or the like, a structure is provided in which the distance between the cathode and the first grid electrode can be accurately obtained.
次に本考案の実施例について図面を参照して説
明する。 Next, embodiments of the present invention will be described with reference to the drawings.
第３図は本考案による補助支持体７の斜視図で
ある。第３図の補助支持体７の材料組成はコバー
ルであり、熱膨張係数は6.5×10-6である。第４
図は陰極支持体２の外周に本考案による補助支持
体７を電気溶接等により３点ないし４点の少ない
溶接点で溶接した組立図である。第５図は第４図
の組立品をフリツトガラス等の非導電性接着材３
を介して、セラミツク等のスペーサ４に固定した
陰極組立構体の断面図である。第５図において補
助支持体７とフリツトガラス等の非導電性接着材
３の熱膨張係数が同じ為、動作中に、フリツトガ
ラス等の非導電性接着材から陰極支持体がはがれ
ることもなく、かつ、陰極支持体と補助支持体は
３点ないし４点の少ない溶接点で互に溶接されて
いるので、たとえ、陰極の温度が上昇しても熱膨
張によるひずみは溶接点のない部分にて相殺さ
れ、陰極と第１格子電極との間隔を正確に保持出
来て信頼性の高い陰極線管用電子陰構体を提供す
ることが可能である。 FIG. 3 is a perspective view of the auxiliary support 7 according to the present invention. The material composition of the auxiliary support 7 in FIG. 3 is Kovar, and the coefficient of thermal expansion is 6.5×10 -6 . Fourth
The figure is an assembly diagram in which the auxiliary support 7 according to the present invention is welded to the outer periphery of the cathode support 2 by electric welding or the like using as few as 3 or 4 welding points. Figure 5 shows the assembly shown in Figure 4 using a non-conductive adhesive such as fritted glass.
FIG. 2 is a cross-sectional view of a cathode assembly fixed to a spacer 4 made of ceramic or the like through the spacer 4. FIG. In FIG. 5, since the coefficient of thermal expansion of the auxiliary support 7 and the non-conductive adhesive 3 such as frit glass are the same, the cathode support does not peel off from the non-conductive adhesive such as frit glass during operation, and Since the cathode support and the auxiliary support are welded to each other using only 3 or 4 welding points, even if the temperature of the cathode increases, the strain caused by thermal expansion will be offset by the areas without welding points. Therefore, it is possible to provide a highly reliable electron cathode assembly for a cathode ray tube that can accurately maintain the distance between the cathode and the first grid electrode.
第１図は陰極組立構体の断面図、第２図は陰極
支持体の斜視図、第３図は本考案による補助支持
体の斜視図、第４図は本考案による補助支持体を
陰極支持体に電気溶接等により溶接した組立図、
第５図は第４図の組立品を使用した陰極組立構体
の断面図である。
１……陰極、２……陰極支持体、３……非導電
性接着材、４……スペーサ、５……第１格子電
極、６……リテーナ、７……補助支持体。
FIG. 1 is a sectional view of the cathode assembly, FIG. 2 is a perspective view of the cathode support, FIG. 3 is a perspective view of the auxiliary support according to the present invention, and FIG. 4 shows the auxiliary support according to the present invention as the cathode support. Assembly drawings welded by electric welding etc.
FIG. 5 is a cross-sectional view of a cathode assembly using the assembly of FIG. 4. DESCRIPTION OF SYMBOLS 1... Cathode, 2... Cathode support, 3... Non-conductive adhesive, 4... Spacer, 5... First grid electrode, 6... Retainer, 7... Auxiliary support.
Claims (1)
定したインライン型電子銃構体において、陰極支
持体の外周に非導電性接着剤と熱膨張係数が等し
い補助支持体を固着したことを特徴とする陰極線
管用電子銃構体。 An in-line electron gun structure in which a cathode support and a spacer are fixed with a non-conductive adhesive, characterized in that an auxiliary support whose coefficient of thermal expansion is equal to that of the non-conductive adhesive is fixed to the outer periphery of the cathode support. Electron gun structure for cathode ray tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16415882U JPS5967847U (en) | 1982-10-29 | 1982-10-29 | Electron gun structure for cathode ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16415882U JPS5967847U (en) | 1982-10-29 | 1982-10-29 | Electron gun structure for cathode ray tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5967847U JPS5967847U (en) | 1984-05-08 |
| JPH0142930Y2 true JPH0142930Y2 (en) | 1989-12-14 |
Family
ID=30359979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16415882U Granted JPS5967847U (en) | 1982-10-29 | 1982-10-29 | Electron gun structure for cathode ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5967847U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5420665B2 (en) * | 1973-12-27 | 1979-07-24 | ||
| JPS5626849B2 (en) * | 1977-03-22 | 1981-06-22 | ||
| JPS5727950A (en) * | 1980-07-24 | 1982-02-15 | Toshiba Corp | Cap for sealing glass and its manufacture |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5531817Y2 (en) * | 1971-05-25 | 1980-07-29 | ||
| JPS56605Y2 (en) * | 1976-04-27 | 1981-01-09 | ||
| JPS5420665U (en) * | 1977-07-13 | 1979-02-09 | ||
| JPS5626849U (en) * | 1979-08-09 | 1981-03-12 |
-
1982
- 1982-10-29 JP JP16415882U patent/JPS5967847U/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5420665B2 (en) * | 1973-12-27 | 1979-07-24 | ||
| JPS5626849B2 (en) * | 1977-03-22 | 1981-06-22 | ||
| JPS5727950A (en) * | 1980-07-24 | 1982-02-15 | Toshiba Corp | Cap for sealing glass and its manufacture |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5967847U (en) | 1984-05-08 |
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