JPH0135383Y2 - - Google Patents
Info
- Publication number
- JPH0135383Y2 JPH0135383Y2 JP1453586U JP1453586U JPH0135383Y2 JP H0135383 Y2 JPH0135383 Y2 JP H0135383Y2 JP 1453586 U JP1453586 U JP 1453586U JP 1453586 U JP1453586 U JP 1453586U JP H0135383 Y2 JPH0135383 Y2 JP H0135383Y2
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- cylindrical body
- fins
- air
- 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.)
- Expired
Links
- 238000001816 cooling Methods 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000011521 glass Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は定置用又は携帯用の投光器に関する。[Detailed explanation of the idea] (Industrial application field) The present invention relates to a stationary or portable light projector.
（従来の技術）
従来の携帯用投光器においては、第４図に示さ
れるようにミラーが収納されている本体０１頭部
の外表面に複数の冷却用フイン０２が突設されて
いるが、本体０１の内面には放冷用フインが設け
られている、また、ミラーはその外周全縁が本体
０１の内面に密着するように本体０１内に収納さ
れている。なお、０３は本体０１の前端に装着さ
れたガラス、０４は把手、０５はスイツチであ
る。(Prior Art) In a conventional portable floodlight, as shown in FIG. Cooling fins are provided on the inner surface of the mirror 01, and the mirror is housed in the main body 01 so that its entire outer periphery is in close contact with the inner surface of the main body 01. Note that 03 is a glass attached to the front end of the main body 01, 04 is a handle, and 05 is a switch.
（考案が解決しようとする問題点）
従つて、上記従来の投光器を点灯した場合、電
球の発熱によつてその周辺の空気が加熱され、し
かも、この空気はミラーとガラス０３で囲まれた
本体０１内空間に停滞して循環することはない。
そして、放冷フイン用０２からの放熱量が僅かで
あるため本体０１内の空気温度は150℃以上に上
昇する。この結果、電球の寿命が１時間程度とな
り、また、本体０１の外表面に人が触れることに
よつて火傷を負うおそれがあつた。(Problem to be solved by the invention) Therefore, when the above conventional floodlight is turned on, the air around it is heated by the heat generated by the bulb, and this air is heated by the main body surrounded by the mirror and glass 03. It does not stagnate and circulate in the space within 01.
Since the amount of heat radiated from the cooling fins 02 is small, the air temperature inside the main body 01 rises to 150° C. or higher. As a result, the lifespan of the light bulb was reduced to about one hour, and there was a risk of burns if a person touched the outer surface of the main body 01.
（問題点を解決するための手段）
本考案は上記問題点を解決するために提案され
たものであつて、その要旨とするところは、筒状
本体と、この筒状本体の内壁にその周方向に所定
の間隔を隔てて複数本突設されてその軸方向に伸
びる放冷用の内部フインと、中央部に通気穴を有
し外周縁が上記内部フインの項端に近接するよう
に上記筒状本体内に配設された椀状のミラーを具
え、上記筒状本体内の空気が熱対流によつて上記
ミラーの後方からその通気穴を通つて前方に至り
外周縁を越えて隣接する上記内部フインの間を経
て上記ミラーの後方へ戻る空気循環通路を形成し
たことを特徴とする投光器にある。(Means for Solving the Problems) The present invention has been proposed to solve the above problems, and its gist is to provide a cylindrical body and an inner wall of the cylindrical body around the periphery. a plurality of internal fins for cooling dissipation that are protruded at predetermined intervals in the direction and extend in the axial direction; A bowl-shaped mirror is disposed within a cylindrical body, and air within the cylindrical body travels from the rear of the mirror to the front through its ventilation hole by thermal convection, and is adjacent to the mirror beyond its outer periphery. The projector is characterized in that an air circulation passage is formed between the inner fins and returning to the rear of the mirror.
（作用）
本考案においては、上記構成を具えているた
め、これを点灯した場合、筒状本体内の空気が熱
対流によつてミラーの後方からその通気穴を通つ
て前方に至りその外周縁を越えて隣接する内部フ
インの間を経てミラーの後方へ循環する。従つ
て、筒状本体内の空気は局部的に上昇することは
なく、内部フインの間を通る際に内部フインと接
触して効果的に冷却される。(Function) Since the present invention has the above-mentioned configuration, when the light is turned on, the air inside the cylindrical body flows from the rear of the mirror to the front through the ventilation hole and reaches the outer periphery of the mirror due to thermal convection. and between adjacent internal fins to the rear of the mirror. Therefore, the air within the cylindrical body does not rise locally, but comes into contact with the internal fins when passing between them and is effectively cooled.
（実施例）
本考案の１実施例が第１図ないし第３図に示さ
れている。(Embodiment) An embodiment of the present invention is shown in FIGS. 1 to 3.
１は筒状本体で、鉄、ステンレス、アルミ、軽
合金、その他熱伝導の良い材質からなる。 1 is a cylindrical body made of iron, stainless steel, aluminum, light alloy, or other material with good thermal conductivity.
２は筒状本体１の内周面にその周方向に所定の
間隔を隔てて複数本突設されてその軸方向に伸び
る放冷用の内部フインである。 Reference numeral 2 denotes a plurality of internal cooling fins that are protruded from the inner circumferential surface of the cylindrical body 1 at predetermined intervals in the circumferential direction and extend in the axial direction.
３は筒状本体１の外周面に突設されてその軸方
向に伸びる放冷用の外部フインであり、前記内部
フイン２と同じ数だけこれと対応する周方向位置
に設けてあるが、異なる数であつも良くまた周方
向にずれた位置に設けてもよい。 Reference numeral 3 designates external cooling fins that protrude from the outer circumferential surface of the cylindrical body 1 and extend in the axial direction thereof, and are provided in the same number as the internal fins 2 at corresponding circumferential positions, but they are different. They may be provided in number or may be provided at positions shifted in the circumferential direction.
図示の内部フイン２及び外部フイン３はいずれ
も筒状本体１の全長に亘つて設けられているが、
前半分のみに設けても良く、或いは、内部フイン
２を全長に設け、外部フイン３を前半分に設けて
も良く、或いは、内部フイン２を前半分に設け、
外部フイン３を全長に設けても良い。 The illustrated internal fins 2 and external fins 3 are both provided over the entire length of the cylindrical body 1;
It may be provided only on the front half, or the internal fins 2 may be provided over the entire length and the external fins 3 may be provided on the front half, or the internal fins 2 may be provided on the front half,
The external fins 3 may be provided along the entire length.
５はミラーで、その中心にランプ６の径より大
径の通気穴５ａが形成され、このミラー５の外周
縁５ｂは各内部フイン２の項端２ａに当接して支
持されている。 Reference numeral 5 denotes a mirror, and a ventilation hole 5a having a diameter larger than that of the lamp 6 is formed in the center thereof, and the outer peripheral edge 5b of this mirror 5 is supported in contact with the front end 2a of each internal fin 2.
７はランプ６を取付けた台座であり、調整軸８
によつて筒状本体１に進退可能に取付けてある。 7 is a pedestal on which the lamp 6 is attached, and an adjustment shaft 8
It is attached to the cylindrical main body 1 so that it can move forward and backward.
９はバネであり、ミラー５をその前後より挟圧
して保持している。 Reference numeral 9 denotes a spring, which holds the mirror 5 by pinching it from the front and back.
１０はガラスであり、筒状本体１の前方に取付
けられた前方枠体１２にゴムパツキン１１で挾持
された状態で嵌合されている。 Reference numeral 10 is made of glass, and is fitted into a front frame 12 attached to the front of the cylindrical main body 1 while being held by rubber gaskets 11.
１３は筒状本体１の後方に取付けられた後方枠
体である。そして、上記筒状本体１、前方枠体１
２、ガラス１０、後方枠体１３により防水性の密
閉空間が限界される。 13 is a rear frame attached to the rear of the cylindrical main body 1. Then, the cylindrical main body 1, the front frame 1
2. The waterproof sealed space is limited by the glass 10 and the rear frame 13.
なお、ミラー５としてコールドミラーを使用す
ることも可能である。 Note that it is also possible to use a cold mirror as the mirror 5.
しかして、ランプ６にバツテリー又は商用電源
から通電することによりこれを点灯すると、ラン
プ６から発生する熱によりその周囲の空気が加熱
されて熱対流により図に矢印で示すようにミラー
５の反射面５ｃに沿つて上昇し、ミラー５の外周
縁５ｂを越えて隣接する内部フイン２の間に形成
される空間２ｂを通り、ミラー５の後方に流れて
行く、そして、空間２ｂを通る際に内部フイン２
の側面及び筒状本体１の内周面と接触して効果的
に冷却される。内部フイン２及び筒状本体１に伝
達された熱は外部フイン３から大気に放散され
る。冷却された空気はミラー５の外面５ｄに沿つ
て降下し、通気穴５ａを経てランプ６の周囲を流
過する過程で再びランプ６から発生する熱によつ
て加熱される。 When the lamp 6 is turned on by energizing it from a battery or a commercial power source, the heat generated by the lamp 6 heats the air around it, causing heat convection to occur on the reflective surface of the mirror 5 as shown by the arrow in the figure. 5c, passes over the outer peripheral edge 5b of the mirror 5, passes through the space 2b formed between the adjacent internal fins 2, flows toward the rear of the mirror 5, and as it passes through the space 2b, the internal Finn 2
and the inner peripheral surface of the cylindrical body 1 to be effectively cooled. The heat transferred to the inner fins 2 and the cylindrical body 1 is radiated to the atmosphere from the outer fins 3. The cooled air descends along the outer surface 5d of the mirror 5 and is heated again by the heat generated from the lamp 6 as it flows around the lamp 6 via the ventilation hole 5a.
かくして、ランプ６の点灯中、密閉空間内の空
気は停滞することなく熱対流により循環するとと
もに循環の過程で内部フイン２と接触して効果的
に冷却される。実験の結果、密閉空間内の空気は
110℃程度まで降下し、また、筒状本体１に触れ
て火傷することもなくなる。 Thus, while the lamp 6 is lit, the air in the closed space circulates through thermal convection without stagnation, and in the process of circulation it comes into contact with the internal fins 2 and is effectively cooled. As a result of the experiment, the air in a closed space is
The temperature drops to about 110°C, and there is no chance of getting burned by touching the cylindrical body 1.
（考案の効果）
本考案においては、筒状本体の内面にその周方
向に所定の間隔を隔ててその軸方向に伸びる複数
本の内部フインが突設されているため、ミラーの
外周縁が筒状本体の内周面に密着することはな
く、従つて、従来のようにミラーとその前方のガ
ラスとの間の空間内に空気が停滞することはな
い。そして、ランプの点灯時、このランプの周囲
の空気はランプから発生する熱によつて加熱され
るが、この加熱された空気は熱対流によつてミラ
ーの反射面に沿つて上昇し、ミラーの外周縁を越
えて隣接する内部フインの間を通つて後方に行
き、内部フイン間を通る際に内部フインと接触し
て効果的に冷却される。そして、この冷却された
空気はミラーの中央部の通気穴を経てランプの周
囲を流過する際ランプを冷却する。(Effects of the invention) In the present invention, a plurality of internal fins extending in the axial direction are provided on the inner surface of the cylindrical body at predetermined intervals in the circumferential direction, so that the outer periphery of the mirror becomes cylindrical. The mirror does not come into close contact with the inner circumferential surface of the shaped body, and therefore air does not stagnate in the space between the mirror and the glass in front of it, unlike in the conventional case. When the lamp is lit, the air around the lamp is heated by the heat generated by the lamp, but this heated air rises along the reflective surface of the mirror due to thermal convection, and It passes over the outer periphery and passes between adjacent inner fins to the rear, and as it passes between the inner fins, it comes into contact with the inner fins and is effectively cooled. This cooled air then cools the lamp as it flows around the lamp through the ventilation hole in the center of the mirror.
かくして、ランプの点灯中筒状本体内の空気は
熱対流により循環し、この過程で内部フインと接
触して冷却されると同時にこの冷却された空気に
よつてランプを冷却するので、ランプの寿命が大
巾に延びると同時に筒状本体内の空気温度が局部
的に上昇することはなく、その全体の温度も従来
のものより大巾に低下するので、筒状本体に触れ
て火傷するおそれもなくなる。 Thus, while the lamp is running, the air inside the cylindrical body circulates through thermal convection, and in this process it comes into contact with the internal fins and is cooled, at the same time cooling the lamp with this cooled air, thus extending the life of the lamp. At the same time, the air temperature within the cylindrical body does not rise locally, and the overall temperature is much lower than that of conventional ones, so there is no risk of getting burned by touching the cylindrical body. It disappears.
第１図ないし第３図は本考案の１実施例を示
し、第１図は投光器の縦断面図、第２図は第１図
における−線に沿う横断面図、第３図は筒状
本体の斜視図である。第４図は従来の携帯用投光
器の斜視図である。
筒状本体……１、内部フイン……２、項端……
２ａ、ミラー……５、通気穴……５ａ、外周縁…
…５ｂ。
Figures 1 to 3 show one embodiment of the present invention, in which Figure 1 is a longitudinal cross-sectional view of the projector, Figure 2 is a cross-sectional view taken along the - line in Figure 1, and Figure 3 is a cylindrical body. FIG. FIG. 4 is a perspective view of a conventional portable projector. Cylindrical body...1, Internal fin...2, Nuchal end...
2a, Mirror...5, Ventilation hole...5a, Outer edge...
...5b.
Claims (1)
に所定の間隔を隔てて複数本突設されてその軸方
向に伸びる放冷用の内部フインと、中央部に通気
穴を有し外周縁が上記内部フインの項端に近接す
るように上記筒状本体内に配設された椀状のミラ
ーを具え、上記筒状本体内の空気が熱対流によつ
て上記ミラーの後方からその通気穴を通つて前方
に至り外周縁を越えて隣接する上記内部フインの
間を経て上記ミラーの後方へ戻る空気循環通路を
形成したことを特徴とする投光器。 A cylindrical body, a plurality of internal fins for cooling that are protruded from the inner surface of the cylindrical body at predetermined intervals in the circumferential direction and extend in the axial direction, and an external fin having a ventilation hole in the center. A bowl-shaped mirror is disposed within the cylindrical body so that its peripheral edge is close to the end of the inner fin, and the air within the cylindrical body is vented from behind the mirror by thermal convection. A projector characterized in that an air circulation passage is formed which passes through the hole to the front, crosses the outer periphery, passes between the adjacent internal fins, and returns to the rear of the mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1453586U JPH0135383Y2 (en) | 1986-02-05 | 1986-02-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1453586U JPH0135383Y2 (en) | 1986-02-05 | 1986-02-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62139017U JPS62139017U (en) | 1987-09-02 |
| JPH0135383Y2 true JPH0135383Y2 (en) | 1989-10-27 |
Family
ID=30804610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1453586U Expired JPH0135383Y2 (en) | 1986-02-05 | 1986-02-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0135383Y2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006339060A (en) * | 2005-06-03 | 2006-12-14 | Akita Denshi Systems:Kk | Lighting system |
| JP4945433B2 (en) * | 2007-12-28 | 2012-06-06 | シャープ株式会社 | Lighting device |
| KR100993059B1 (en) * | 2008-09-29 | 2010-11-08 | 엘지이노텍 주식회사 | Light emitting apparatus |
| JP5399965B2 (en) * | 2010-03-30 | 2014-01-29 | パナソニック株式会社 | lighting equipment |
| JP5399964B2 (en) * | 2010-03-30 | 2014-01-29 | パナソニック株式会社 | lighting equipment |
| JP5155463B2 (en) * | 2012-03-05 | 2013-03-06 | シャープ株式会社 | Lighting device |
-
1986
- 1986-02-05 JP JP1453586U patent/JPH0135383Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62139017U (en) | 1987-09-02 |
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