JPH0747005Y2 - Lighting equipment - Google Patents
Lighting equipmentInfo
- Publication number
- JPH0747005Y2 JPH0747005Y2 JP1990108149U JP10814990U JPH0747005Y2 JP H0747005 Y2 JPH0747005 Y2 JP H0747005Y2 JP 1990108149 U JP1990108149 U JP 1990108149U JP 10814990 U JP10814990 U JP 10814990U JP H0747005 Y2 JPH0747005 Y2 JP H0747005Y2
- Authority
- JP
- Japan
- Prior art keywords
- circuit board
- printed circuit
- fluorescent lamp
- reflector
- mounting
- 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 - Lifetime
Links
- 210000000078 claw Anatomy 0.000 claims description 33
- 238000005286 illumination Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 229910000679 solder Inorganic materials 0.000 description 6
- 238000005476 soldering Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Facsimile Scanning Arrangements (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 この考案は、例えばファクシミリおよび複写機等におけ
る読み取り用、または液晶表示器のバックライト照明用
に用いられる照明装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an illuminating device used for reading, for example, in a facsimile and a copying machine, or for backlight illumination of a liquid crystal display.
近年、ファクシミリおよび複写機等における読み取り
用、または液晶表示器のバックライト照明用に用いられ
る照明装置には、その照度分布が極力均一であることが
要望されている。2. Description of the Related Art In recent years, illumination devices used for reading in facsimiles and copiers or for backlight illumination of liquid crystal displays have been required to have a uniform illuminance distribution.
従来の照明装置を第３図（ａ），（ｂ）および第４図
（ａ），（ｂ）に基づいて説明する。A conventional illumination device will be described with reference to FIGS. 3 (a) and 3 (b) and FIGS. 4 (a) and 4 (b).
第３図（ａ），（ｂ）および第４図（ａ），（ｂ）は従
来の照明装置の構成を示す概念図である。3 (a) and 3 (b) and FIGS. 4 (a) and 4 (b) are conceptual diagrams showing the configuration of a conventional lighting device.
第３図（ａ），（ｂ）および第４図（ａ），（ｂ）に示
すように、従来の照明装置は、蛍光ランプ２の点灯回路
を構成する回路部品（図示せず）をプリント基板８上に
実装し、このプリント基板８上に反射板９または10とソ
ケット６とを取付け、このソケット６間に蛍光ランプ２
を装着したものである。As shown in FIGS. 3 (a) and 3 (b) and FIGS. 4 (a) and 4 (b), the conventional lighting device is printed with circuit components (not shown) constituting a lighting circuit of the fluorescent lamp 2. It is mounted on a substrate 8, a reflector 9 or 10 and a socket 6 are mounted on the printed circuit board 8, and the fluorescent lamp 2 is mounted between the sockets 6.
Is attached.
反射板９および10は、蛍光ランプ光の配光を制御し、さ
らにプリント基板８の反りおよび回路部品に対して蛍光
ランプ光による輻射熱の影響を防止する。The reflectors 9 and 10 control the distribution of the fluorescent lamp light, and further prevent the warp of the printed circuit board 8 and the circuit components from being affected by the radiant heat of the fluorescent lamp light.
第３図（ａ），（ｂ）に示す反射板９は、側面方向の形
状がＬ型であり、また固定片Ｘ（反射板９のプリント基
板８に接する部分）に切込み部を設けて両端部の幅を中
央部の幅より広くすることにより蛍光ランプ２の端部の
照度の低下を補正してある。この反射板９は、固定片Ｘ
の両端部および中央部に螺子止めすることにより、プリ
ント基板８に取り付けられる。The reflector 9 shown in FIGS. 3 (a) and 3 (b) has an L-shape in the side surface direction, and a fixing piece X (a portion of the reflector 9 in contact with the printed circuit board 8) is provided with a notch to form both ends. By making the width of the portion wider than the width of the central portion, the decrease in illuminance at the end portion of the fluorescent lamp 2 is corrected. This reflector 9 is a fixed piece X
It is attached to the printed circuit board 8 by being screwed to both end portions and the central portion of the.
また、第４図（ａ），（ｂ）に示す反射板10は、側面方
向の形状がＲ型であり、また固定片Ｘ（反射板10のプリ
ント基板８に接する部分）に切込み部を設けて両端部の
幅を中央部の幅より広くすることにより蛍光ランプ２の
端部の照度の低下を補正してある。この反射板10は、固
定片Ｘの両端部を螺子止めすることにより、プリント基
板８に取り付けられる。The reflector 10 shown in FIGS. 4 (a) and 4 (b) has an R-shaped lateral direction, and a cutout is provided in the fixed piece X (the portion of the reflector 10 that contacts the printed circuit board 8). By making the width of both ends wider than the width of the central part, the decrease in illuminance at the ends of the fluorescent lamp 2 is corrected. The reflector 10 is attached to the printed board 8 by screwing both ends of the fixed piece X.
このような反射板９または10を取り付けた照明装置に
は、小型化要求のために、例えばφ８〔mm〕の細管の蛍
光ランプ２が用いられるが、このような細管の蛍光ラン
プ２は始動性が悪い。したがって、蛍光ランプ２の始動
性を良好にするために、近接して金属導体を設けること
が必要となる。通常、上記金属導体として反射板９また
は10を用いている。A fluorescent lamp 2 having a thin tube of φ8 [mm], for example, is used for an illumination device to which such a reflector 9 or 10 is attached in order to reduce the size, but such a fluorescent lamp 2 having a thin tube has a startability. Is bad. Therefore, in order to improve the startability of the fluorescent lamp 2, it is necessary to provide a metal conductor in close proximity. Usually, the reflector 9 or 10 is used as the metal conductor.
具体的には、プリント基板８に反射板９または10を固定
する際、プリント基板８のアースランドに反射板９また
は10を螺子止めすることにより、プリント基板８のアー
スランドと反射板９または10とを電気的に接続してい
る。これに対して、このような対策が取られない場合
は、蛍光ランプに印加する始動電圧をさらに高く設定す
る必要があるため、点灯回路を構成する回路部品の大型
化、グレードアップおよび絶縁距離の確保が必要とな
り、小型化の要求を満足しなくなる。Specifically, when fixing the reflection plate 9 or 10 to the printed circuit board 8, the reflection plate 9 or 10 is screwed to the ground land of the printed circuit board 8 so that the ground land of the printed circuit board 8 and the reflection plate 9 or 10 are fixed. And are electrically connected. On the other hand, if such measures are not taken, it is necessary to set the starting voltage applied to the fluorescent lamp to a higher value, so that the circuit components that make up the lighting circuit are upsized, upgraded, and the insulation distance is increased. It becomes necessary to secure it, and the demand for miniaturization will not be satisfied.
なお、プリント基板８のアースランドに反射板９または
10を確実に固定し、アースランドと反射板９または10と
を電気的に十分に接続するためには、例えば、歯付ワッ
シャ等を介した螺子止めにより反射板９または10をプリ
ント基板８に固定することが必要となる。It should be noted that the reflection plate 9 or
In order to securely fix 10 and to electrically and sufficiently connect the earth land and the reflector 9 or 10, the reflector 9 or 10 is fixed to the printed circuit board 8 by screwing through a toothed washer or the like. It is necessary to fix it.
しかしながら、このように構成された従来の照明装置
は、プリント基板８に反射板９を固定するために用いる
螺子11が、蛍光ランプ２の照度分布に影響を与えるとい
う問題があった。すなわち、第５図に示すように、反射
板９の中央部および両端部の螺子11が影響し、蛍光ラン
プ２の中央部の照度（符号12）は高くなり、また蛍光ラ
ンプ２の両端部の照度（符号13）が低くなり、照度分布
が不均一になるという問題があった。However, the conventional lighting device configured as described above has a problem that the screw 11 used for fixing the reflection plate 9 to the printed circuit board 8 affects the illuminance distribution of the fluorescent lamp 2. That is, as shown in FIG. 5, the illuminance (reference numeral 12) at the central portion of the fluorescent lamp 2 is increased due to the influence of the screws 11 at the central portion and both end portions of the reflecting plate 9, and at the both end portions of the fluorescent lamp 2. There is a problem that the illuminance (reference numeral 13) becomes low and the illuminance distribution becomes non-uniform.
このような問題の対策として、螺子11を用いることな
く、接着剤により反射板をプリント基板に固定したり、
反射板の一部に爪を設け、単にこの爪をプリント基板の
裏面で折り曲げることにより反射板をプリント基板に固
定したりすることが考えられる。しかし、このような場
合、いずれも、近接導体とした反射板とプリント基板の
アースランドとを電気的に確実に接続できず、細管の蛍
光ランプの始動性を良好にすることができないという問
題があった。As a measure against such a problem, without using the screw 11, the reflector is fixed to the printed circuit board with an adhesive,
It is conceivable that a claw is provided on a part of the reflector and the claw is simply bent on the back surface of the printed board to fix the reflector to the printed board. However, in both of these cases, there is a problem in that it is not possible to reliably and reliably connect the reflector, which is a proximity conductor, and the earth land of the printed circuit board, and it is not possible to improve the startability of the fluorescent lamp of the thin tube. there were.
また、螺子止め位置を蛍光ランプ装着側ではなく、回路
部品実装側に設けることにより、螺子による蛍光ランプ
の照度分布の影響をなくすことも考えられるが、この場
合、回路部品の実装余地が狭くなるという問題があっ
た。In addition, it is possible to eliminate the influence of the illuminance distribution of the fluorescent lamp due to the screw by providing the screwing position not on the fluorescent lamp mounting side but on the circuit component mounting side, but in this case, there is less room for mounting the circuit component. There was a problem.
また、従来の照明装置では、プリント基板８のアースラ
ンドに反射板９または10を確実に固定し、アースランド
と反射板９または10とを電気的に十分に接続するために
は、例えば、歯付ワッシャ等を介して螺子11を反射板９
または10に固定することが必要となった。その結果、製
造工程数が多くなり、また、輸送等の際に生じる歯付ワ
ッシャの緩みを考慮することが必要になるという問題が
あった。Further, in the conventional lighting device, in order to securely fix the reflection plate 9 or 10 to the earth land of the printed circuit board 8 and sufficiently electrically connect the earth land and the reflection plate 9 or 10, for example, a tooth The screw 11 is attached to the reflector 9 via a washer or the like.
Or it became necessary to fix it to 10. As a result, there is a problem that the number of manufacturing steps increases and it is necessary to consider loosening of the toothed washer that occurs during transportation and the like.
この考案の目的は、上記問題点に鑑み、点灯回路を構成
する回路部品の実装余地を狭めることなく、反射板をプ
リント基板のアースランドに確実電気的に接続でき、か
つ照度分布を均一にした照明装置を提供することであ
る。In view of the above problems, an object of the present invention is to reliably and electrically connect the reflector to the ground land of the printed circuit board without narrowing the mounting space of the circuit components constituting the lighting circuit, and to make the illuminance distribution uniform. A lighting device is provided.
この考案の蛍光ランプの点灯回路を構成する回路部品を
プリント基板に実装し、このプリント基板に反射板およ
び蛍光ランプを取付けた照明装置であって、前記反射板
の前記プリント基板に当接する固定片の前記蛍光ランプ
の長手方向に沿った縁部の中央に切込み部を形成すると
ともに、前記プリント基板を貫通し折曲される取付け用
爪を前記固定片の前記長手方向の両端部および前記切込
み部に設け、かつ前記取付け用爪の少なくとも１個を前
記プリント基板のアースランドに半田付け接合したこと
を特徴とするものである。A lighting device in which circuit parts constituting a lighting circuit of a fluorescent lamp according to the present invention are mounted on a printed board, and a reflector and a fluorescent lamp are attached to the printed board, and a fixing piece of the reflector that contacts the printed board. A cutout is formed at the center of the edge of the fluorescent lamp along the longitudinal direction, and mounting claws penetrating the printed circuit board and bent are provided at both ends of the fixing piece in the longitudinal direction and the cutout. And at least one of the mounting claws is soldered and bonded to an earth land of the printed circuit board.
この考案の構成によれば、点灯回路の回路部品を実装し
たプリント基板に反射板および蛍光ランプを取付けたた
め、部品点数が削減でき組立容易になり小型化できる。
また反射板のプリント基板に当接する固定片の蛍光ラン
プの長手方向に沿った縁部の中央に切込み部を形成した
ため、蛍光ランプの長手方向の照度分布の均一化を図れ
るとともに、プリント基板を貫通し折曲される取付け用
爪を固定片の長手方向の両端部および切込み部に設けた
ため、従来のように螺子を用いることなく、反射板をプ
リント基板上の蛍光ランプ装着側に取付けることができ
る。したがって、従来のような螺子の影響を受けること
がないので蛍光ランプの照度分布を均一にすることがで
き、また蛍光ランプの点灯回路を構成する回路部品の実
装余地を狭めることもない。また、反射板の取付け用爪
を折曲してプリント基板に取付けているため、照明装置
の高さ寸法を小さくてき、また半田付け以前に反射板を
プリント基板に固定できるので、反射板が傾く等の不具
合がない。これに対して、取付け用爪を折曲しないで半
田で固定する場合、プリント基板の下の寸法は半田強度
および半田付け目性を考慮する必要があるため大きくな
り、また半田付け時に反射板が傾いたり、浮いてしまう
等の不具合がある。さらに反射板の中央の切欠部に取付
け用爪を形成しているため、反射板の材料を有効利用で
きる。また取付け用爪の少なくとも１個をプリント基板
のアースランドに半田付け接合することにより、プリン
ト基板の銅箔と直接接続するため確実にアースが取れ、
反射板とプリント基板のアースランドとを電気的に確実
に接続することができる。その結果、小型で蛍光ランプ
の始動性が良好で、かつ照度分布の均一な照明装置を得
ることができる。According to the structure of the present invention, since the reflector and the fluorescent lamp are mounted on the printed circuit board on which the circuit components of the lighting circuit are mounted, the number of components can be reduced, the assembly can be facilitated, and the size can be reduced.
In addition, since the cutout is formed in the center of the edge of the fixed piece that abuts the printed circuit board of the reflector along the longitudinal direction of the fluorescent lamp, the illuminance distribution in the longitudinal direction of the fluorescent lamp can be made uniform and the printed circuit board can be penetrated. Since the mounting claws that are bent are provided at both ends and notches in the longitudinal direction of the fixed piece, the reflector can be mounted on the side of the printed circuit board where the fluorescent lamp is mounted without using screws. . Therefore, it is possible to make the illuminance distribution of the fluorescent lamp uniform because it is not affected by the screw as in the prior art, and there is also no narrowing of the mounting space for the circuit components that make up the lighting circuit of the fluorescent lamp. Also, since the mounting claws of the reflector are bent and attached to the printed circuit board, the height of the lighting device can be reduced, and the reflector can be fixed to the printed circuit before soldering, so the reflector is tilted. There are no problems such as. On the other hand, when fixing the mounting claws with solder without bending, the size under the printed circuit board becomes large because it is necessary to consider the solder strength and solderability, and the reflector plate is There are problems such as tilting and floating. Furthermore, since the mounting claw is formed in the notch in the center of the reflector, the material of the reflector can be effectively used. In addition, since at least one of the mounting claws is soldered to the earth land of the printed circuit board, it is directly connected to the copper foil of the printed circuit board so that the earth can be reliably obtained.
The reflector and the earth land of the printed circuit board can be electrically and reliably connected. As a result, it is possible to obtain a lighting device that is small in size, has good startability of the fluorescent lamp, and has a uniform illuminance distribution.
この考案の一実施例を第１図（ａ）〜（ｄ）ないし第２
図（ａ）〜（ｄ）に基づいて説明する。One embodiment of this invention is shown in FIGS.
A description will be given with reference to FIGS.
第１図（ａ）〜（ｃ）はこの考案の第１の実施例の照明
装置の構成を示す概念図、第１図（ｄ）は同照明装置の
反射板４の構成を示す斜視図、第２図（ａ）〜（ｃ）は
この考案の第２の斜視図の照明装置の構成を示す概念
図、第２図（ｄ）は同照明装置の反射板４の構成を示す
概念図である。1 (a) to 1 (c) are conceptual views showing a configuration of a lighting device according to a first embodiment of the present invention, and FIG. 1 (d) is a perspective view showing a configuration of a reflection plate 4 of the lighting device. 2 (a) to 2 (c) are conceptual views showing the configuration of the illumination device of the second perspective view of the present invention, and FIG. 2 (d) is a conceptual diagram showing the configuration of the reflector 4 of the illumination device. is there.
第１図（ａ）〜（ｃ）および第２図（ａ）〜（ｃ）に示
すように、照明装置は、蛍光ランプ２の点灯回路を構成
する回路部品（図示せず）をプリント基板１に実装し、
このプリント基板１に反射板3,4または５とソケット６
とを取付け、このソケット６間に蛍光ランプ２を装着し
たものである。As shown in FIGS. 1 (a) to (c) and FIGS. 2 (a) to (c), the lighting device includes a circuit board (not shown) constituting a lighting circuit of the fluorescent lamp 2 on the printed circuit board 1. Implemented in
This printed circuit board 1 has reflectors 3, 4 or 5 and sockets 6
And the fluorescent lamp 2 is mounted between the sockets 6.
反射板3,4および５は、蛍光ランプ光の配光を制御し、
さらにプリント基板１の反りおよび点灯回路を構成する
回路部品に対して蛍光ランプ光による輻射熱の影響を防
止するためのものである。The reflectors 3, 4 and 5 control the light distribution of the fluorescent lamp light,
Further, it is intended to prevent the warp of the printed circuit board 1 and the influence of the radiant heat from the fluorescent lamp light on the circuit components constituting the lighting circuit.
なお、反射板3,4および５の反射面の有効領域は、反射
板の蛍光ランプに面した全面である。The effective area of the reflecting surfaces of the reflecting plates 3, 4 and 5 is the entire surface of the reflecting plate facing the fluorescent lamp.
以下、第1,第２および第３の実施例の照明装置の反射板
3,4および５について説明する。Hereinafter, the reflectors of the lighting devices of the first, second and third embodiments
3, 4, and 5 will be described.
第１図（ｄ）に示すように第１の実施例の照明装置の反
射板４は側面方向の形状がＬ型であり、また反射板４の
プリント基板１と当接する固定片Ｘの蛍光ランプ２の長
手方向に沿った縁部の中央に切込み部14を設け、その両
端部の幅を中央部の幅より広くすることにより蛍光ラン
プ２の端部の照度の低下を補正してある。As shown in FIG. 1 (d), the reflector 4 of the illuminating device of the first embodiment has an L-shape in the side direction, and the fluorescent lamp of the fixed piece X that abuts the printed board 1 of the reflector 4. A cut 14 is provided at the center of the edge of the fluorescent lamp 2 along the longitudinal direction, and the width of both ends of the cut 14 is made wider than the width of the center to correct the decrease in illuminance at the end of the fluorescent lamp 2.
また、反射板４の反射面の有効領域外の裏面となる固定
片Ｘの中央部および両端部に、この固定片と一体の取付
け用爪7,7′を設けたものである。Further, mounting claws 7 and 7'integral with the fixing piece are provided at the central portion and both ends of the fixing piece X, which is the back surface outside the effective area of the reflecting surface of the reflecting plate 4.
このような反射板４を、プリント基板１の蛍光ランプ装
着側に設けた取付け用穴（図示せず）に取付け用爪7,
7′を挿入し、この挿入した取付け用爪7,7′をプリント
基板１の裏面で折り曲げることにより、プリント基板１
に取付けた。また折り曲げた取付け用爪7,7′をプリン
ト基板１のアースランド（図示せず）に半田付けするこ
とにより接合した。（第１図（ａ），（ｂ）および
（ｃ）参照。The reflecting plate 4 is attached to a mounting hole (not shown) provided on the side of the printed circuit board 1 where the fluorescent lamp is mounted, and the mounting claws 7,
7'is inserted, and the inserted mounting claws 7,7 'are bent on the back surface of the printed circuit board 1 so that the printed circuit board 1
Attached to. Further, the bent mounting claws 7 and 7'are soldered to an earth land (not shown) of the printed circuit board 1 to join them. (See FIGS. 1 (a), (b) and (c).
次に、第２図（ｄ）に示す第２の実施例の照明装置の反
射板５は、側面方向の形状がＲ型であり、また反射板５
の固定片Ｘに切込み部14を設け、その両端部の幅を中央
部の幅より広くすることにより蛍光ランプ２の端部の照
度の低下を補正してある。Next, the reflector 5 of the illumination device of the second embodiment shown in FIG. 2 (d) has an R-shape in the side surface direction, and the reflector 5
The fixing piece X is provided with a notch portion 14 and the width of both end portions thereof is made wider than the width of the central portion to correct the decrease in illuminance at the end portion of the fluorescent lamp 2.
また、反射板５の反射面の有効領域外の裏面となる固定
片Ｘの中央部および両端部に、反射板５と一体の取付け
用爪７を設けたものである。Further, mounting claws 7 integrated with the reflector 5 are provided at the central portion and both ends of the fixed piece X, which is the back surface outside the effective area of the reflecting surface of the reflector 5.
このような反射板５を、プリント基板１の蛍光ランプ装
着側に設けた取付け用穴（図示せず）に取付け用爪７を
挿入し、この挿入した取付け用爪７をプリント基板１裏
面で折り曲げることにより、プリント基板１に取付け
た。また折り曲げた取付け用爪７をプリント基板１のア
ースランド（図示せず）に半田付けすることにより接合
した。（第２図（ａ），（ｂ）および（ｃ）参照。） このように第１および第２の実施例の照明装置によれ
ば、従来のように螺子を用いることなく、反射板4,5の
反射面の有効領域外の裏面に設けた取付け用爪7,7′に
より、反射板4,5をプリント基板１に取り付けた。した
がって、従来のような螺子の影響を受けることなく、蛍
光ランプ１の照度分布は均一となる。また、反射板4,5
は、蛍光ランプ２の装着側に取付けた。したがって、蛍
光ランプ２の点灯回路を構成する回路部品の実装余地を
狭めることがない。また、反射板4,5の取付け用爪7,7′
は、半田付けによりプリント基板１のアースランドに接
合した。したがって、反射板4,5とプリント基板１のア
ースランドとを電気的に確実に接続することができた。The reflecting plate 5 is inserted into a mounting hole (not shown) provided on the side of the printed circuit board 1 where the fluorescent lamp is mounted, and the mounting claw 7 is bent, and the inserted mounting claw 7 is bent on the rear surface of the printed circuit board 1. As a result, it was attached to the printed circuit board 1. Further, the bent mounting claws 7 were soldered to an earth land (not shown) of the printed circuit board 1 to join them. (See FIGS. 2 (a), (b) and (c).) As described above, according to the lighting devices of the first and second embodiments, the reflector plate 4, The reflection plates 4 and 5 were attached to the printed circuit board 1 by the attachment claws 7 and 7'provided on the back surface outside the effective area of the reflection surface of 5. Therefore, the illuminance distribution of the fluorescent lamp 1 becomes uniform without being affected by the conventional screw. Also, reflectors 4,5
Was attached to the mounting side of the fluorescent lamp 2. Therefore, the mounting space for the circuit components forming the lighting circuit of the fluorescent lamp 2 is not narrowed. Also, the claws 7 and 7'for mounting the reflectors 4 and 5
Was joined to the earth land of the printed circuit board 1 by soldering. Therefore, the reflection plates 4 and 5 and the earth land of the printed circuit board 1 could be electrically and reliably connected.
さらに、また、反射板4,5の取付け用爪7,7′を折曲して
プリント基板１に取付けているため、照明装置の高さ寸
法を小さくでき、また半田付け以前に反射板4,5をプリ
ント基板１に固定できるので、反射板4,5が傾く等の不
具合がない。これに対して、取付け用爪7,7′を折曲し
ないで半田で固定する場合、プリント基板１の下の寸法
は半田強度および半田付け性を考慮する必要があるため
大きくなり、また半田付け時に反射板4,5が傾いたり、
浮いてしまう等の不具合がある。Furthermore, since the mounting claws 7 and 7'of the reflectors 4 and 5 are bent and attached to the printed circuit board 1, the height of the lighting device can be reduced, and the reflectors 4 and 7 can be mounted before soldering. Since 5 can be fixed to the printed circuit board 1, there is no problem such as the reflection plates 4 and 5 tilting. On the other hand, when the mounting claws 7 and 7'are fixed by soldering without bending, the size under the printed circuit board 1 becomes large because it is necessary to consider the solder strength and solderability. Sometimes the reflectors 4 and 5 tilt,
There is a problem such as floating.
さらに第１および第２の実施例によれば、反射板４また
は５の固定片Ｘの両端部の幅を中央部の幅より広くする
ために、固定部の中央部に切込み部分を設ける際この切
込み部分を利用して、反射板に取付け用爪７を設けるこ
とにより、反射板４および５の材料を有効に利用するこ
とができた。Further, according to the first and second embodiments, in order to make the width of both ends of the fixing piece X of the reflecting plate 4 or 5 wider than the width of the central portion, when the cut portion is provided in the central portion of the fixing portion, By providing the mounting claw 7 on the reflection plate by utilizing the cut portion, the materials of the reflection plates 4 and 5 could be effectively used.
なお、プリント基板１の取付け用穴に挿入した複数の取
付け用爪7,7′は、折り曲げた後、全てを半田付けする
必要はなく、プリント基板１のアースランドに接合する
べき取付け用爪のみを半田付けすれば良い。The plurality of mounting claws 7 and 7'inserted into the mounting holes of the printed circuit board 1 do not need to be soldered after being bent. Only the mounting claws to be bonded to the earth land of the printed circuit board 1 are required. You can solder it.
また、第１および第２の実施例における取付け用爪7,
7′は、反射板3,4および５と一体としたが、これに限ら
ず、反射板の反射面の有効領域外の裏面であれば、別体
としても良い。Further, the mounting claws 7 in the first and second embodiments,
7'is integrated with the reflectors 3, 4 and 5, but not limited to this, and may be a separate body as long as it is a back surface outside the effective area of the reflection surface of the reflector.
この考案の照明装置によれば、点灯回路の回路部品を実
装したプリント基板に反射板および蛍光ランプを取付け
たため、部品点数が削減でき組立容易になり小型化でき
る。また反射板のプリント基板に当接する固定片の蛍光
ランプの長手方向に沿った縁部の中央に切込み部を形成
したため、蛍光ランプの長手方向の照度分布の均一化を
図れるとともに、プリント基板を貫通し折曲される取付
け用爪を固定片の長手方向の両端部および切込み部に設
けたため、従来のように螺子を用いることなく、反射板
をプリント基板上の蛍光ランプ装着側に取付けることが
できる。したがって、従来のような螺子の影響を受ける
ことがないので蛍光ランプの照度分布を均一にすること
ができ、また蛍光ランプの点灯回路を構成する回路部品
の実装余地を狭めることもない。また、反射板の取付け
用爪を折曲してプリント基板に取付けているため、照明
装置の高さ寸法を小さくてき、また半田付け以前に反射
板をプリント基板に固定できるので、反射板が傾く等の
不具合がない。これに対して、取付け用爪を折曲しない
で半田で固定する場合、プリント基板の下の寸法は半田
強度および半田付け目性を考慮する必要があるため大き
くなり、また半田付け時に反射板が傾いたり、浮いてし
まう等の不具合がある。さらに反射板の中央の切欠部に
取付け用爪を形成しているため、反射板の材料を有効利
用できる。また取付け用爪の少なくとも１個をプリント
基板のアースランドに半田付け接合することにより、プ
リント基板の銅箔と直接接続するため確実にアースが取
れ、反射板とプリント基板のアースランドとを電気的に
確実に接続することができる。その結果、小型で蛍光ラ
ンプの始動性が良好で、かつ照度分布の均一な照明装置
を得ることができる。According to the lighting device of the present invention, since the reflector and the fluorescent lamp are attached to the printed circuit board on which the circuit components of the lighting circuit are mounted, the number of components can be reduced, the assembly can be facilitated, and the size can be reduced. In addition, since the cutout is formed in the center of the edge of the fixed piece that abuts the printed circuit board of the reflector along the longitudinal direction of the fluorescent lamp, the illuminance distribution in the longitudinal direction of the fluorescent lamp can be made uniform and the printed circuit board can be penetrated. Since the mounting claws that are bent are provided at both ends and notches in the longitudinal direction of the fixed piece, the reflector can be mounted on the side of the printed circuit board where the fluorescent lamp is mounted without using screws. . Therefore, it is possible to make the illuminance distribution of the fluorescent lamp uniform because it is not affected by the screw as in the prior art, and there is also no narrowing of the mounting space for the circuit components that make up the lighting circuit of the fluorescent lamp. Also, since the mounting claws of the reflector are bent and attached to the printed circuit board, the height of the lighting device can be reduced, and the reflector can be fixed to the printed circuit before soldering, so the reflector is tilted. There are no problems such as. On the other hand, when fixing the mounting claws with solder without bending, the size under the printed circuit board becomes large because it is necessary to consider the solder strength and solderability, and the reflector plate is There are problems such as tilting and floating. Furthermore, since the mounting claw is formed in the notch in the center of the reflector, the material of the reflector can be effectively used. In addition, since at least one of the mounting claws is soldered and bonded to the ground land of the printed circuit board, it is directly connected to the copper foil of the printed circuit board, so that the earth is surely obtained, and the reflector and the ground land of the printed circuit board are electrically connected. Can be securely connected to. As a result, it is possible to obtain a lighting device that is small in size, has good startability of the fluorescent lamp, and has a uniform illuminance distribution.
第１図（ａ）〜（ｃ）はこの考案の第１の実施例の照明
装置の構成を示す概念図、第１図（ｄ）は同照明装置の
反射板４の構成を示す斜視図、第２図（ａ）〜（ｃ）は
この考案の第２の実施例の照明装置の構成を示す概念
図、第２図（ｄ）は同照明装置の反射板５の構成を示す
斜視図、第３図（ａ），（ｂ）および第４図（ａ），
（ｂ）は従来の照明装置の構成を示す概念図、第５図は
従来の照明装置による照度分布を示す図である。 １……プリント基板、２……蛍光ランプ、4,5……反射
板、7,7′……取付け用爪、14……切込み部1 (a) to 1 (c) are conceptual views showing a configuration of a lighting device according to a first embodiment of the present invention, and FIG. 1 (d) is a perspective view showing a configuration of a reflection plate 4 of the lighting device. 2 (a) to 2 (c) are conceptual views showing a configuration of a lighting device according to a second embodiment of the present invention, and FIG. 2 (d) is a perspective view showing a configuration of a reflector plate 5 of the lighting device. 3 (a), (b) and 4 (a),
(B) is a conceptual diagram showing a configuration of a conventional lighting device, and FIG. 5 is a diagram showing an illuminance distribution by the conventional lighting device. 1 ... Printed circuit board, 2 ... Fluorescent lamp, 4,5 ... Reflector, 7,7 '... Mounting claw, 14 ... Notch
Claims (1)
をプリント基板に実装し、このプリント基板に反射板お
よび蛍光ランプを取付けた照明装置であって、 前記反射板の前記プリント基板に当接する固定片の前記
蛍光ランプの長手方向に沿った縁部の中央に切込み部を
形成するとともに、前記プリント基板を貫通し折曲され
る取付け用爪を前記固定片の前記長手方向の両端部およ
び前記切込み部に設け、かつ前記取付け用爪の少なくと
も１個を前記プリント基板のアースランドに半田付け接
合したことを特徴とする照明装置。1. A lighting device in which circuit components constituting a lighting circuit of a fluorescent lamp are mounted on a printed circuit board, and a reflector and a fluorescent lamp are mounted on the printed circuit board, wherein the reflective plate contacts the printed circuit board. A notch is formed at the center of the edge of the fixing piece along the longitudinal direction of the fluorescent lamp, and mounting claws penetrating the printed circuit board and bent are provided at both ends of the fixing piece in the longitudinal direction and An illumination device provided in a notch, and at least one of the mounting claws is soldered and bonded to an earth land of the printed circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990108149U JPH0747005Y2 (en) | 1990-10-15 | 1990-10-15 | Lighting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990108149U JPH0747005Y2 (en) | 1990-10-15 | 1990-10-15 | Lighting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0464864U JPH0464864U (en) | 1992-06-04 |
| JPH0747005Y2 true JPH0747005Y2 (en) | 1995-10-25 |
Family
ID=31854985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990108149U Expired - Lifetime JPH0747005Y2 (en) | 1990-10-15 | 1990-10-15 | Lighting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0747005Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61143368U (en) * | 1985-02-26 | 1986-09-04 |
-
1990
- 1990-10-15 JP JP1990108149U patent/JPH0747005Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0464864U (en) | 1992-06-04 |
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| EXPY | Cancellation because of completion of term |