JPH06215616A - Cooling of ultraviolet lamp - Google Patents
Cooling of ultraviolet lampInfo
- Publication number
- JPH06215616A JPH06215616A JP5023211A JP2321193A JPH06215616A JP H06215616 A JPH06215616 A JP H06215616A JP 5023211 A JP5023211 A JP 5023211A JP 2321193 A JP2321193 A JP 2321193A JP H06215616 A JPH06215616 A JP H06215616A
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- lamp
- air
- lighting mode
- ultraviolet lamp
- 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
Landscapes
- Light Sources And Details Of Projection-Printing Devices (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、紫外線ランプの冷却
方法に関する。特に、樹脂、塗料、インク、接着剤等の
硬化に関する紫外線ランプの冷却方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cooling an ultraviolet lamp. In particular, the present invention relates to a method of cooling an ultraviolet lamp for curing resins, paints, inks, adhesives and the like.
【０００２】[0002]
【従来技術】樹脂、塗料、インク、接着剤等の硬化に
は、メタルハライドランプや高圧水銀ランプからの放射
される紫外線が利用される。最近は、硬化処理の生産性
を上げるために硬化時間、すなわち紫外線の照射時間を
短縮することが要求されている。この要求に対して、ラ
ンプの高出力化をはかることが検討され、それに伴って
冷却方法もいろいろと工夫されている。2. Description of the Related Art Ultraviolet rays emitted from a metal halide lamp or a high pressure mercury lamp are used for curing resins, paints, inks, adhesives and the like. Recently, it has been required to shorten the curing time, that is, the irradiation time of ultraviolet rays in order to increase the productivity of the curing treatment. In response to this demand, it has been studied to increase the output of the lamp, and along with that, various cooling methods have been devised.
【０００３】以下、従来の紫外線ランプの冷却方法を説
明する。発光長１cmあたりの入力１６０Ｗ以上の紫外線
ランプを冷却する場合、ランプを取り囲む樋状反射ミラ
ーの３カ所に冷却用空気吹出口を設ける。この３カ所は
ランプ円周表面に対してほぼ３等分になる方向から吹き
付けることができる。これら３つの吹出口を選択的に使
うことによって、ランプの点灯状態に合った冷却をする
ことができた。この技術を開示したものに、特開昭６２
─２９４４３９号や特開昭６２─２９４４３８号があ
る。A conventional method for cooling an ultraviolet lamp will be described below. When cooling an ultraviolet lamp with an input of 160 W or more per 1 cm of light emission length, cooling air outlets are provided at three locations of a gutter-shaped reflecting mirror surrounding the lamp. These three locations can be sprayed from a direction that divides the lamp circumferential surface into approximately three equal parts. By selectively using these three outlets, it was possible to perform cooling in accordance with the lighting state of the lamp. Japanese Patent Application Laid-open No. Sho 62-62 discloses the technique.
-294439 and JP-A-62-294438.
【０００４】ランプは、数段階の出力で切り換えて点灯
することが多い。例えば、照射処理する時は高出力点灯
モードとして、照射処理を行わない時は低出力点灯モー
ドとする。この場合、ランプの高出力化に伴い、各点灯
モード間の出力差が大きくなる。このため、従来のよう
に冷却風吹出口を複数設けて、これらを選択的に使用す
るだけでは、いずれかの点灯モードでは良好に冷却する
ことができたとしても、全ての点灯モードについて良好
に冷却することは難しくなる。[0004] The lamp is often switched and lit by the output of several stages. For example, the high output lighting mode is set when the irradiation processing is performed, and the low output lighting mode is set when the irradiation processing is not performed. In this case, the output difference between the respective lighting modes increases as the lamp output increases. Therefore, even if it is possible to satisfactorily cool in any of the lighting modes by providing a plurality of cooling air outlets and selectively using these as in the conventional case, it is possible to satisfactorily cool in all the lighting modes. It will be difficult to do.
【０００５】[0005]
【発明が解決しようとする課題】この発明が解決しよう
とする課題は、ランプを高出力化しても良好に冷却する
ことができる紫外線ランプの冷却方法を提供することに
ある。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for cooling an ultraviolet lamp which can cool the lamp satisfactorily even when the output of the lamp is increased.
【０００６】[0006]
【課題を解決するための手段】課題を解決するためにこ
の発明は、紫外線ランプを取り囲む樋状反射ミラーに複
数の冷却用開口を有して、高出力点灯モードで使用する
時は、冷却用開口から当該紫外線ランプに冷却風を吹き
付けて、低出力点灯モードで使用する時は、冷却用開口
から樋状反射ミラー内の空気を排風することを特徴とす
る。SUMMARY OF THE INVENTION In order to solve the problems, the present invention has a gutter-shaped reflecting mirror surrounding an ultraviolet lamp having a plurality of cooling openings for cooling when used in a high output lighting mode. When the cooling air is blown from the opening to the ultraviolet lamp to use in the low output lighting mode, the air inside the gutter-shaped reflecting mirror is exhausted from the cooling opening.
【０００７】[0007]
【作用】この発明は、発光管の熱負荷が高い高出力点灯
モードでは、ランプに対して冷却風を吹付ける、所謂、
冷却効率の良い送風冷却を行う。また、比較的発光管の
熱負荷が低い低出力点灯モードでは、冷却効率は送風に
比べて劣るが、冷却風の変動、特に風量増加によりラン
プが過冷却にならないように、排風冷却を行う。このよ
うに、両方の点灯モードにおいて、ランプを良好に冷却
をすることができる。According to the present invention, in the high output lighting mode in which the heat load of the arc tube is high, the so-called
Blower cooling with good cooling efficiency. Further, in the low output lighting mode in which the heat load of the arc tube is relatively low, the cooling efficiency is inferior to that of the blown air, but the exhaust air is cooled so that the lamp does not become overcooled due to the fluctuation of the cooling air, especially the increase of the air volume. . In this way, the lamp can be cooled well in both lighting modes.
【０００８】[0008]
【実施例】図１は、この発明を説明するための装置の概
略図である。紫外線ランプ１（以下、ランプともいう）
は、高圧水銀ランプやメタルハライドランプよりなり、
波長２５０〜４００ｎｍの光を放射する。ランプ１は棒
状であり、例えば、管径２６ｍｍ、長さ２５０ｍｍが適
用される。反射ミラー２は、コールドミラーなどであっ
て、樋状の形状をなしランプ１を取り囲むように配置さ
れ、千鳥状に冷却用開口２０を有する。被照射物３は、
インク、塗料、樹脂などが基板の上に塗布されて、反射
ミラー２が集光する位置に配置される。灯具４は、反射
ミラー２を取り囲み、冷却風の風洞を形成する。1 is a schematic diagram of an apparatus for explaining the present invention. UV lamp 1 (hereinafter also referred to as lamp)
Consists of a high pressure mercury lamp and a metal halide lamp,
It emits light with a wavelength of 250 to 400 nm. The lamp 1 is rod-shaped, and for example, a tube diameter of 26 mm and a length of 250 mm is applied. The reflection mirror 2 is a cold mirror or the like, has a trough shape, is arranged so as to surround the lamp 1, and has cooling openings 20 in a staggered manner. The irradiation target 3 is
Ink, paint, resin, etc. are applied on the substrate and arranged at the position where the reflection mirror 2 collects light. The lamp 4 surrounds the reflection mirror 2 and forms a wind tunnel for cooling air.
【０００９】ブロア５は、吸気口５０と吹出口５１と有
して、送排風の切替機構６を介して灯具４内に繋がる。
切替機構６は、軸６０を中心に回転して導入口６１を、
ブロア５の吸気口５０もしくは吹出口５１に接触させ
る。The blower 5 has an intake port 50 and an outlet port 51, and is connected to the inside of the lamp 4 through a switching mechanism 6 for blowing air.
The switching mechanism 6 rotates around the shaft 60 to move the introduction port 61,
The blower 5 is brought into contact with the intake port 50 or the blowout port 51.
【００１０】図２は、反射ミラー２の冷却用開口２０を
示した斜視図である。冷却用開口２０は、前述のよう
に、千鳥状に設けられているが、これはランプ１を均一
に冷却するための構成である。しかし、この構成に限る
ものではなく、例えば、高温になりやすい電極近傍を冷
却能力が高くなるように構成することもできる。FIG. 2 is a perspective view showing the cooling opening 20 of the reflection mirror 2. The cooling openings 20 are provided in a zigzag manner as described above, but this is a configuration for uniformly cooling the lamp 1. However, the configuration is not limited to this, and for example, the vicinity of the electrode, which is likely to reach a high temperature, may be configured to have a high cooling capacity.
【００１１】次に、図３を使って、この発明の紫外線ラ
ンプの冷却方法を説明する。図３（ａ）は、高出力点灯
モードで使用した時の状態を示す。図３（ｂ）は、低出
力点灯モードで使用した時の状態を示す。（ａ）図で
は、切替機構６の導入口６１が、ブロア５の吹出口５１
に接触して矢印に示すように冷却風が流れる。この時
は、冷却風を吹き付ける状態となる。そしてシャッタ７
を開いて、ランプ１の放射光を被照射物３に照射する。
この状態でのランプの放射強度は、例えば、発光長１cm
あたり２００Ｗである。（ｂ）図では、切替機構６の導
入口６１が、ブロア５の吸気口５０に接触して矢印に示
すように冷却風が流れる。この時は排風手段となり、ラ
ンプ１近傍の高温になった空気を、反射ミラー２の冷却
用開口２０、灯具４内の風洞内を介して、ブロア５で吸
気する。そしてシャッタ７を閉じて、ランプ１の放射光
は被照射物３に照射されないようにする。この状態での
ランプの放射強度は、例えば、発光長１cmあたり６０Ｗ
である。Next, the method of cooling the ultraviolet lamp of the present invention will be described with reference to FIG. FIG. 3A shows a state when used in the high output lighting mode. FIG. 3B shows a state when used in the low output lighting mode. In the figure (a), the inlet 61 of the switching mechanism 6 is the outlet 51 of the blower 5.
The cooling air flows as shown by the arrow. At this time, the cooling air is blown. And shutter 7
Is opened to irradiate the irradiation object 3 with the emitted light of the lamp 1.
The radiant intensity of the lamp in this state is, for example, an emission length of 1 cm.
It is about 200W. In the diagram (b), the inlet 61 of the switching mechanism 6 contacts the intake port 50 of the blower 5, and the cooling air flows as shown by the arrow. At this time, it serves as an exhausting means, and the hot air in the vicinity of the lamp 1 is sucked by the blower 5 through the cooling opening 20 of the reflection mirror 2 and the wind tunnel in the lamp 4. Then, the shutter 7 is closed so that the irradiation light of the lamp 1 is not irradiated on the irradiation object 3. The radiant intensity of the lamp in this state is, for example, 60 W per 1 cm of emission length.
Is.
【００１２】[0012]
【発明の効果】この発明の効果は、発光管の温度が高い
高出力点灯モードでは、ランプに対して冷却風を吹付け
る、所謂、送風冷却を行い、比較的発光管の温度が低い
低出力点灯モードでは、ランプが過冷却にならないよう
に、排風型の冷却を行う。このようにして、両方の点灯
モードにおいて良好な冷却をすることができる。The effect of the present invention is that in the high output lighting mode in which the temperature of the arc tube is high, cooling air is blown to the lamp, so-called blow cooling is performed, and the low output of the arc tube in which the temperature is relatively low is achieved. In the lighting mode, exhaust type cooling is performed to prevent the lamp from being overcooled. In this way, good cooling can be achieved in both lighting modes.
【図面の簡単な説明】[Brief description of drawings]
【図１】この発明にかかる紫外線ランプの冷却装置を示
す。FIG. 1 shows a cooling device for an ultraviolet lamp according to the present invention.
【図２】この発明にかかる反射ミラーの斜視図を示す。FIG. 2 shows a perspective view of a reflection mirror according to the present invention.
【図３】この発明の紫外線ランプの冷却方法の説明用の
図である。FIG. 3 is a diagram for explaining a method of cooling an ultraviolet lamp according to the present invention.
１ 紫外線ランプ ２ 反射ミラー ３ 被照射物 ４ 灯具 ５ ブロア 1 UV lamp 2 Reflection mirror 3 Irradiation object 4 Lamp 5 Blower
Claims (1)
複数の冷却用開口を有して、 高出力点灯モードで使用する時は、冷却用開口から当該
紫外線ランプに冷却風を吹き付けて、 低出力点灯モードで使用する時は、冷却用開口から樋状
反射ミラー内の空気を排風することを特徴とする紫外線
ランプの冷却方法。1. A gutter-shaped reflecting mirror surrounding an ultraviolet lamp has a plurality of cooling openings, and when used in a high output lighting mode, cooling air is blown from the cooling openings to the ultraviolet lamp to reduce the output. When used in the lighting mode, the method for cooling an ultraviolet lamp is characterized in that the air inside the gutter-shaped reflecting mirror is exhausted from the cooling opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05023211A JP3123284B2 (en) | 1993-01-19 | 1993-01-19 | UV lamp cooling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05023211A JP3123284B2 (en) | 1993-01-19 | 1993-01-19 | UV lamp cooling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06215616A true JPH06215616A (en) | 1994-08-05 |
| JP3123284B2 JP3123284B2 (en) | 2001-01-09 |
Family
ID=12104334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05023211A Expired - Fee Related JP3123284B2 (en) | 1993-01-19 | 1993-01-19 | UV lamp cooling method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3123284B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007068322A1 (en) * | 2005-12-14 | 2007-06-21 | Leibniz-Institut für Oberflächenmodifizierung e.V. | Apparatus for carrying out a method to modify surfaces of radiation-hardenable colours and paints by photochemical microfolding by means of short-wave, monochromatic uv radiation under stable irradiation and inerting conditions |
| KR20160032639A (en) * | 2014-09-16 | 2016-03-24 | 주식회사 킴스켐 | Housing for protecting halogen lamp |
| JP2016109318A (en) * | 2014-12-02 | 2016-06-20 | 国立研究開発法人産業技術総合研究所 | Light collection mirror type heating furnace |
-
1993
- 1993-01-19 JP JP05023211A patent/JP3123284B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007068322A1 (en) * | 2005-12-14 | 2007-06-21 | Leibniz-Institut für Oberflächenmodifizierung e.V. | Apparatus for carrying out a method to modify surfaces of radiation-hardenable colours and paints by photochemical microfolding by means of short-wave, monochromatic uv radiation under stable irradiation and inerting conditions |
| KR20160032639A (en) * | 2014-09-16 | 2016-03-24 | 주식회사 킴스켐 | Housing for protecting halogen lamp |
| JP2016109318A (en) * | 2014-12-02 | 2016-06-20 | 国立研究開発法人産業技術総合研究所 | Light collection mirror type heating furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3123284B2 (en) | 2001-01-09 |
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