JPS6297228A - Liquid-cooled projection type cathode-ray tube - Google Patents
Liquid-cooled projection type cathode-ray tubeInfo
- Publication number
- JPS6297228A JPS6297228A JP60120423A JP12042385A JPS6297228A JP S6297228 A JPS6297228 A JP S6297228A JP 60120423 A JP60120423 A JP 60120423A JP 12042385 A JP12042385 A JP 12042385A JP S6297228 A JPS6297228 A JP S6297228A
- Authority
- JP
- Japan
- Prior art keywords
- ray tube
- refrigerant
- liquid
- projection type
- radiator
- 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.)
- Pending
Links
Landscapes
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は液冷式投写形ブラウン管に係り、該ブラウンの
冷却効果を向上するための放熱器の構造に関する〇
〔発明の背景〕
第３図は従来の液冷式ブラウン管の側面、断面図であり
、第４図は正面図である。１はブラウン管を示す◎前面
パネル２は放熱器３を介して、接着剤４により、フェー
スパネル６ ニｍＮｔ８れており、該７ｚ−スパネル６
と前記前面パネル２の間に冷媒５が充填されている。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a liquid-cooled projection type cathode ray tube, and relates to the structure of a radiator for improving the cooling effect of the cathode ray tube. [Background of the Invention] FIG. FIG. 4 is a side view and a sectional view of a conventional liquid-cooled cathode ray tube, and FIG. 4 is a front view. 1 indicates a cathode ray tube ◎The front panel 2 is attached to the face panel 6 with adhesive 4 through the heat sink 3, and the front panel 6
A refrigerant 5 is filled between the front panel 2 and the front panel 2.
液冷式ブラウン管は、該冷媒５と放熱器３によりフェー
スパネル６の熱を放散せしめ、フェースパネル６の温度
を冷却することにより、バルブ破壊を防護し、螢光体の
発光能率を向上するものである。The liquid-cooled cathode ray tube uses the refrigerant 5 and the radiator 3 to dissipate heat from the face panel 6, and by cooling the temperature of the face panel 6, protects the bulb from destruction and improves the luminous efficiency of the phosphor. It is.
第３図、第４図に示す従来の液冷式投写形ブラウン管は
一般に放熱器５にはアルミ等の金属。In the conventional liquid-cooled projection type cathode ray tube shown in FIGS. 3 and 4, the heat sink 5 is generally made of metal such as aluminum.
冷媒５には熱伝導性の良好な液体が使用されており、フ
ェース６０発熱を該液体および金属の熱伝導を利用し、
ブラウン管の外部に放散せしめていた。A liquid with good thermal conductivity is used as the refrigerant 5, and the face 60 generates heat by utilizing the heat conduction of the liquid and metal.
It was dissipated to the outside of the cathode ray tube.
しかしながら、前記冷媒、すなわち、液体の熱伝導率は
、アルミ等金属の熱伝導率に比べ、限られており、放熱
器３を大形化しても、放熱（冷却）効果を顕著に増大す
ることができないという欠点があった。However, the thermal conductivity of the refrigerant, that is, the liquid, is limited compared to that of metals such as aluminum, and even if the radiator 3 is made larger, the heat radiation (cooling) effect cannot be significantly increased. The drawback was that it was not possible.
また前記冷媒の限られた熱伝導率により・フェース面６
の中央部分の放熱（冷却）に比べ・金属の放熱器３に接
した周辺部の放熱量が大きいため、フェース面６に温度
差が生じ、該温度差による熱ストレスが′パルプ破壊の
要因として残されていた。Also, due to the limited thermal conductivity of the refrigerant, the face surface 6
Compared to the heat dissipation (cooling) in the central part, the amount of heat dissipated in the peripheral part in contact with the metal radiator 3 is large, so a temperature difference occurs on the face surface 6, and the thermal stress caused by this temperature difference is the cause of pulp destruction. It was left behind.
本発明の目的は液冷式投写形ブラウン管において、その
放熱（冷却）効果を顕著に向上する放熱構造を提供する
ことにある。An object of the present invention is to provide a heat dissipation structure for a liquid-cooled projection cathode ray tube that significantly improves its heat dissipation (cooling) effect.
本発明はブラウン管の７エースパネル前方ニ冷却用冷媒
を配し、かつ該冷媒の前方に前面パネルを配し、該前面
パネルと前記フェースパネルを放熱器を介して接着剤に
より接着し、前記冷媒を密閉保持してなる液冷式投写形
ブラウン管において、前記フェースパネルと前面パネル
の間の冷媒中にスリット状、あるいは網状の細い放熱片
を設置し、該放熱片を前記放熱器に接触あるいは機械的
に固定した・ことを特徴とするものである＠
〔発明の実施例〕
以下に本発明を図に示す実施例に従って説明する。In the present invention, a refrigerant for cooling is disposed in front of a 7 ace panel of a cathode ray tube, a front panel is disposed in front of the refrigerant, the front panel and the face panel are bonded with an adhesive via a radiator, and the refrigerant is In a liquid-cooled projection cathode ray tube, a slit-like or net-like thin heat dissipating piece is installed in the refrigerant between the face panel and the front panel, and the heat dissipating piece is brought into contact with the heat radiator or mechanically [Embodiments of the Invention] The present invention will be described below with reference to embodiments shown in the drawings.
第１図は本発明の一実施例を示す液冷式ブラウン管の断
面図である。また第２図は該ブラウン管の正面図である
・
第１図、第２図において、冷媒５中に配置したスリット
７が本考案の特徴である＠
該スリット７をアルミ等の熱伝導性の良い金属で構成し
、周辺の放熱器３に接触あるいは、機械的に固定するこ
とにより、フェースプレート６の発熱を効果的に周辺の
放熱器３に伝導し、放熱（冷却）効果を顕著忙向上する
ことができるＯ
なお該スリット７を投写形レンズの焦点面である、ブラ
ウン管の電光面から離れた冷媒中忙配置し、すなわち投
写形レンズの焦点深度外に配置しかつ光遮蔽の少ない細
°い構造とすることにより、投写光への影響は除去する
ことができるＯ
またミ該スリットのかわりに網状の放熱片を使用しても
同様の効果が得られる。FIG. 1 is a sectional view of a liquid-cooled cathode ray tube showing an embodiment of the present invention. In addition, Figure 2 is a front view of the cathode ray tube. In Figures 1 and 2, the slit 7 placed in the coolant 5 is a feature of the present invention. By being made of metal and contacting or mechanically fixing to the surrounding heat sink 3, the heat generated by the face plate 6 is effectively conducted to the surrounding heat sink 3, and the heat radiation (cooling) effect is significantly improved. In addition, the slit 7 is placed in the coolant away from the focal plane of the projection lens, which is the optical surface of the cathode ray tube. By using this structure, the influence on the projected light can be eliminated.Also, the same effect can be obtained by using a net-like heat dissipating piece instead of the slit.
本発明によれば、液冷式投写形ブラウン管の放熱（冷却
）効果を大幅に向上することができるため、信頼性の向
上と螢光体発光能率の向上をはかることができる。According to the present invention, the heat dissipation (cooling) effect of the liquid-cooled projection type cathode ray tube can be greatly improved, so that reliability and phosphor emission efficiency can be improved.
以上に述べたとおり、放熱片を冷媒中に配置し、周辺部
放熱器３に接触あるいは機械的に固定することにより、
投写光に影響を与えずに、液冷式投写形ブラウン管の放
熱（冷却）効果を顕著に向上することができ、信頼性と
螢光体の発光能率の向上を計ることができる。As described above, by arranging the heat dissipation piece in the refrigerant and contacting or mechanically fixing it to the peripheral radiator 3,
The heat dissipation (cooling) effect of the liquid-cooled projection cathode ray tube can be significantly improved without affecting the projected light, and the reliability and luminous efficiency of the phosphor can be improved.
第１図、第２図はそれぞれ本発明による液冷式投写形′
ブラウン管の一実施例の断面図と正面図、第３図、第４
図はそれぞれ従来の液冷式投写形ブラウン管の断面図と
正面図である。
１・・・ブラウン管％ ２・・・前面パネル、３
・・・放熱器、 ４・・・接着剤、５・・・冷
媒、 ６・・・フェースパネル、７・・
・放熱片＠Figures 1 and 2 respectively show a liquid-cooled projection type according to the present invention.
Cross-sectional view and front view of an embodiment of a cathode ray tube, FIGS. 3 and 4
The figures are a sectional view and a front view, respectively, of a conventional liquid-cooled projection type cathode ray tube. 1... Braun tube % 2... Front panel, 3
...Radiator, 4...Adhesive, 5...Refrigerant, 6...Face panel, 7...
・Heat dissipation piece @
Claims (1)
配し、かつ該冷媒の前方に前面パネルを配し、該前面パ
ネルと前記フェースパネルを放熱器を介して接着剤によ
り接着し、前記冷媒を密閉保持してなる液冷式投写形ブ
ラウン管において、前記フェースパネルと前面パネルの
間の冷媒中にスリット状、あるいは網状の細い放熱片を
設置し、該放熱片を前記放熱器に接触あるいは機械的に
固定してなる液冷式投写形ブラウン管。(1) A cooling refrigerant is placed in front of the face panel of the cathode ray tube, a front panel is placed in front of the refrigerant, and the front panel and the face panel are bonded with adhesive via a radiator, and the refrigerant is placed in front of the face panel of the cathode ray tube. In a liquid-cooled projection type cathode ray tube that is kept sealed, a slit-like or net-like thin heat dissipating piece is installed in the refrigerant between the face panel and the front panel, and the heat dissipating piece is brought into contact with the heat radiator or mechanically A liquid-cooled projection type cathode ray tube fixed to the
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60120423A JPS6297228A (en) | 1985-06-05 | 1985-06-05 | Liquid-cooled projection type cathode-ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60120423A JPS6297228A (en) | 1985-06-05 | 1985-06-05 | Liquid-cooled projection type cathode-ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6297228A true JPS6297228A (en) | 1987-05-06 |
Family
ID=14785849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60120423A Pending JPS6297228A (en) | 1985-06-05 | 1985-06-05 | Liquid-cooled projection type cathode-ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6297228A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57132639A (en) * | 1981-02-12 | 1982-08-17 | Toshiba Corp | Cathode-ray tube for projection |
| JPS5814666B2 (en) * | 1978-11-14 | 1983-03-22 | コニカ株式会社 | Direct positive silver halide photographic material |
| JPS61163544A (en) * | 1985-01-11 | 1986-07-24 | Matsushita Electric Ind Co Ltd | Projection cathode-ray tube device |
-
1985
- 1985-06-05 JP JP60120423A patent/JPS6297228A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5814666B2 (en) * | 1978-11-14 | 1983-03-22 | コニカ株式会社 | Direct positive silver halide photographic material |
| JPS57132639A (en) * | 1981-02-12 | 1982-08-17 | Toshiba Corp | Cathode-ray tube for projection |
| JPS61163544A (en) * | 1985-01-11 | 1986-07-24 | Matsushita Electric Ind Co Ltd | Projection cathode-ray tube device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4985815A (en) | Light reflector | |
| JP7207903B2 (en) | Light source device and projection display device having the same | |
| CN108107567A (en) | Digital Micromirror Device component | |
| KR910005076B1 (en) | Color cathode ray tube device | |
| JPS58154146A (en) | Liquid cooling type cathode-ray tube | |
| JPS6297228A (en) | Liquid-cooled projection type cathode-ray tube | |
| JPH1124072A (en) | Liquid crystal display device | |
| JPS628423A (en) | Projection cathod-ray tube | |
| KR900003216B1 (en) | Cathode-ray tube | |
| JP2010032945A (en) | Heat radiation device for dmd element | |
| JPH04317024A (en) | Cooling device for liquid crystal panel | |
| JPH10207381A (en) | Radiator for display device | |
| JP3161250B2 (en) | Projection receiver | |
| JPS59148251A (en) | Projection type cathode-ray tube | |
| CN210776155U (en) | Projection device | |
| JPH03126011A (en) | Liquid crystal projector | |
| JP2759948B2 (en) | Television image projector | |
| JP2023072374A (en) | Light source device and projection type display device | |
| JPS6336599Y2 (en) | ||
| JPS6255839A (en) | Projection type cathode-ray tube | |
| JPH0535390Y2 (en) | ||
| JPS60227344A (en) | Liquid cooling type projection picture tube | |
| JPS6020430A (en) | Liquid-cooled cathode ray tube | |
| JP4196691B2 (en) | Liquid crystal display | |
| CN116339054A (en) | Light source assembly and projection device |