JPH10188655A - Discharge lamp lighting device - Google Patents
Discharge lamp lighting deviceInfo
- Publication number
- JPH10188655A JPH10188655A JP8344282A JP34428296A JPH10188655A JP H10188655 A JPH10188655 A JP H10188655A JP 8344282 A JP8344282 A JP 8344282A JP 34428296 A JP34428296 A JP 34428296A JP H10188655 A JPH10188655 A JP H10188655A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- components
- discharge lamp
- lighting device
- lamp lighting
- 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
- 239000003990 capacitor Substances 0.000 claims abstract description 26
- 238000005192 partition Methods 0.000 claims abstract description 13
- 238000009499 grossing Methods 0.000 claims description 4
- 230000005855 radiation Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、放電灯に高周波電
力を供給するインバータ回路を備えた放電灯点灯装置に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge lamp lighting device provided with an inverter circuit for supplying high frequency power to a discharge lamp.
【０００２】[0002]
【従来の技術】従来より商用電源の交流電圧を整流し、
直流電源部によって得られた直流電圧をインバータ回路
によって高周波電圧に変換し、放電灯に供給するように
した放電灯点灯装置が広く用いられている。具体的な点
灯回路の構成例を図５に示す。商用電源ＡＣを整流器Ｄ
Ｂにより全波整流して得た脈流電圧を直流電源部１に入
力し、直流電源部１の直流出力をインバータ部２及び放
電灯１１，１２，１３，…を含む負荷回路に供給するも
のである。直流電源部１は整流器ＤＢの出力端間に接続
されたインダクタＬ1 およびＦＥＴよりなるスイッチン
グ素子Ｑ1 の直列回路をスイッチング素子Ｑ1 に並列に
接続された逆流阻止用のダイオードＤ1 および平滑用の
コンデンサＣ1 との直列回路と、スイッチング素子Ｑ1
の制御部３とからなる。なお、制御部３は、電源用の電
解コンデンサＣ2 を備えている。インバータ部２は、平
滑用のコンデンサＣ1 に並列接続されたスイッチング素
子Ｑ 2 ，Ｑ3 の直列回路と、その電源用電解コンデンサ
Ｃ3 、タイマー用電解コンデンサＣ4 等を備えた制御部
４とからなる。スイッチング素子Ｑ2 ，Ｑ3 の接続点か
ら複数の負荷回路がそれぞれ並列に接続されている。2. Description of the Related Art Conventionally, an AC voltage of a commercial power supply is rectified,
The DC voltage obtained by the DC power supply is converted to an inverter circuit.
To convert it to a high-frequency voltage and supply it to the discharge lamp
Discharge lamp lighting devices are widely used. Specific points
FIG. 5 shows a configuration example of the lamp circuit. Rectifier D for commercial power AC
The pulsating voltage obtained by full-wave rectification by B is input to the DC power supply unit 1.
The DC output of the DC power supply 1 to the inverter 2 and
Are supplied to a load circuit including electric lights 11, 12, 13,.
It is. DC power supply unit 1 is connected between the output terminals of rectifier DB
Inductor L1And switch consisting of FET
Element Q1Series circuit of the switching element Q1In parallel
Connected backflow prevention diode D1And for smoothing
Capacitor C1And a switching element Q1
And a control unit 3. Note that the control unit 3 is provided with a power supply for the power supply.
Solution capacitor CTwoIt has. The inverter unit 2 is flat
Sliding capacitor C1Switching elements connected in parallel
Child Q Two, QThreeSeries circuit and electrolytic capacitor for its power supply
CThree, Timer electrolytic capacitor CFourControl unit with etc.
4 Switching element QTwo, QThreeConnection point
A plurality of load circuits are respectively connected in parallel.
【０００３】この放電灯点灯装置を構成している電子部
品は、それぞれに使用温度範囲が規定されている。コイ
ル類やスイッチング素子等の半導体部品は比較的高い温
度で使用しても支障は無い。しかし、電解コンデンサの
寿命は、使用温度の影響を受ける。部品の最高使用温度
をＴ1 （℃）、寿命を算出するための部品温度をＴ
2（℃）、温度Ｔ1 における寿命をＪ1 （時間）、温度
Ｔ2 における寿命をＪ2 （時間）とすると、 （Ｔ1 −Ｔ2 ）／１０ Ｊ2 ＝Ｊ1 ×２ となる。上式より、一般的に温度が１０℃下がると寿命
は約２倍に伸びる。したがって、電解コンデンサは可能
な限り低い温度の雰囲気中で使用した方が良く、プリン
ト基板上の対流を考えて高温部品からの影響を受けにく
い配置にしている。また、高温部品の温度を下げるた
め、放電灯の出力を低下させた設計をすることもある。[0003] The operating temperature range of each of the electronic components constituting this discharge lamp lighting device is defined. There is no problem even if the semiconductor components such as coils and switching elements are used at a relatively high temperature. However, the life of the electrolytic capacitor is affected by the operating temperature. The maximum operating temperature of the component is T 1 (° C), and the component temperature for calculating the life is T
Assuming that the life at 2 (° C.), the temperature T 1 is J 1 (hour), and the life at the temperature T 2 is J 2 (hour), (T 1 −T 2 ) / 10 J 2 = J 1 × 2. From the above equation, generally, when the temperature decreases by 10 ° C., the life is extended about twice. Therefore, it is better to use the electrolytic capacitor in an atmosphere at a temperature as low as possible. In consideration of convection on the printed circuit board, the electrolytic capacitor is arranged so as to be hardly affected by high-temperature components. In addition, in order to lower the temperature of the high-temperature component, a design may be made in which the output of the discharge lamp is reduced.
【０００４】[0004]
【発明が解決しようとする課題】低い温度で使用したい
部品は高温部品のそばに配置することはできず、遠ざけ
て配置しなければならない。そのため、プリント基板を
小型化することが困難になる。また、発熱部品の温度を
抑えようとすると、放電灯の出力を低下させなくてはな
らない。Components that are to be used at low temperatures cannot be located near hot components and must be located far away. This makes it difficult to reduce the size of the printed circuit board. Further, in order to reduce the temperature of the heat-generating component, the output of the discharge lamp must be reduced.
【０００５】本発明はこのような点に鑑みてなされたも
のであり、発熱部品と使用温度の低い部品とを同一プリ
ント配線板に実装していても使用温度の低い部品が発熱
部品からの輻射熱を直接受けないように、また、異なっ
た使用温度範囲の部品でも、それに合った環境で使用す
ることのできる部品で構成された放電灯点灯装置を提供
しようとするものである。The present invention has been made in view of such a point, and even when a heat-generating component and a component having a low operating temperature are mounted on the same printed wiring board, the component having a low operating temperature will not emit radiant heat from the heat-generating component. It is an object of the present invention to provide a discharge lamp lighting device including components which can be used in an environment suitable for the components in different operating temperature ranges so as not to be directly affected by the temperature.
【０００６】[0006]
【課題を解決するための手段】本発明にあっては、前記
の課題を解決するために、異なった使用温度範囲の部品
をそれぞれほぼ同じ使用温度範囲の部品ごとに実装し、
使用温度の違う部品群の境界に仕切りを設けることによ
りプリント基板上に複数の温度の室を形成させる。これ
により、使用温度範囲の低い部品は高温部品からの輻射
熱を直接受けることなく、それぞれの部品に合った使用
温度環境で使用することができる。また、比較的温度の
低い室に電解コンデンサを配置することで電解コンデン
サの寿命を延ばす効果がある。更に高温部品と電解コン
デンサとの距離が縮まるため、プリント基板の小型化の
効果もある。According to the present invention, in order to solve the above-mentioned problems, parts having different operating temperature ranges are mounted for each of the parts having substantially the same operating temperature range.
By providing a partition at the boundary between the component groups having different operating temperatures, a plurality of temperature chambers are formed on the printed circuit board. Thus, components having a low operating temperature range can be used in an operating temperature environment suitable for each component without directly receiving radiant heat from the high-temperature components. In addition, disposing the electrolytic capacitor in a room having a relatively low temperature has the effect of extending the life of the electrolytic capacitor. Further, since the distance between the high-temperature component and the electrolytic capacitor is reduced, the size of the printed circuit board can be reduced.
【０００７】[0007]
【発明の実施の形態】本発明の第１の実施例を図１〜３
に示す。図１はプリント基板内の実装状態を示したもの
である。長手方向に入力部６から出力部８の部品を配置
している。まず、入力部６には商用電源入力端子５と、
整流器ＤＢ、インダクタＬ1 を実装している。また、中
央部７には平滑用コンデンサを始めとする電解コンデン
サ群を実装している。さらに、出力部８には、インバー
タ部に並列に接続される負荷回路に使用しているバラス
トチョークを実装している。入力部６、出力部８には高
温に発熱する部品を実装しており、中央部７には低い使
用温度で使用したい電解コンデンサを配置している。入
力部６と中央部７との仕切り９は直流電源部を構成して
いるスイッチング素子Ｑ1 とダイオードＤ1 の半導体の
放熱板を使用し、中央部７と出力部８との仕切り１０に
はインバータ部を構成するスイッチング素子Ｑ2 ，Ｑ3
の放熱板を使用している。このプリント基板はケースに
納められており、ケースの断面の形状にほぼ等しい放熱
板を使用することで各部異なった温度の空間が形成され
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention is shown in FIGS.
Shown in FIG. 1 shows a mounting state in a printed circuit board. Components from the input unit 6 to the output unit 8 are arranged in the longitudinal direction. First, the input section 6 has a commercial power input terminal 5,
Rectifier DB, implementing the inductor L 1. An electrolytic capacitor group including a smoothing capacitor is mounted in the central portion 7. Further, a ballast choke used for a load circuit connected in parallel to the inverter unit is mounted on the output unit 8. Components that generate heat at a high temperature are mounted on the input unit 6 and the output unit 8, and an electrolytic capacitor to be used at a low use temperature is disposed in the central unit 7. The partition 9 between the input section 6 and the central section 7 uses a semiconductor heat sink of the switching element Q 1 and the diode D 1 constituting the DC power supply section, and the partition 10 between the central section 7 and the output section 8 is Switching elements Q 2 and Q 3 constituting the inverter section
Uses a heat sink. The printed circuit board is housed in a case, and a space having a different temperature is formed in each part by using a heat radiating plate having substantially the same cross-sectional shape as the case.
【０００８】図２はプリント基板上の温度分布を示す。
入力部６、出力部８の雰囲気温度は発熱部品が有ること
から高温度になる。また、仕切りに使用している半導体
部品の放熱板９、１０は高温になるが、入力部６、出力
部８のチョーク類からの輻射を遮り、直接、中央部７に
影響を及ぼさない。この部分に配置してある電解コンデ
ンサは、ブロック内部で比較的低い温度の使用環境で使
用できる。FIG. 2 shows a temperature distribution on a printed circuit board.
The ambient temperature of the input section 6 and the output section 8 becomes high due to the presence of heat-generating components. The heat radiation plates 9 and 10 of the semiconductor components used for the partition become high in temperature, but block radiation from the chokes of the input section 6 and the output section 8 and do not directly affect the central section 7. The electrolytic capacitor disposed in this portion can be used in a relatively low temperature use environment inside the block.
【０００９】図３はブロックの立体図である。図のよう
に、電解コンデンサＣ1 〜Ｃ4 を中央部７に収納してい
る。２個の電解コンデンサＣ1AとＣ1Bは、機能的には１
つの電解コンデンサＣ1 を構成している。なお、図４に
示すように、ケース２０の中央部に穴２１を明けること
が好ましい。このように、温度の低い室のケース部に穴
を明けることで更に温度上昇を避けることができる。ま
た、入力部６と中央部７との仕切り９、あるいは、中央
部７と出力部８との仕切り１０としては、上述の放熱板
に代えて、ケースに突起物を設けることにより、基板上
を幾つかの室に分割しても良い。FIG. 3 is a three-dimensional view of the block. As shown in the figure, electrolytic capacitors C 1 to C 4 are housed in a central portion 7. The two electrolytic capacitors C 1A and C 1B are functionally 1
One of the electrolyte constitutes a capacitor C 1. In addition, as shown in FIG. 4, it is preferable to make a hole 21 in the center of the case 20. In this manner, by forming a hole in the case portion of the low-temperature chamber, it is possible to further prevent the temperature from rising. The partition 9 between the input portion 6 and the central portion 7 or the partition 10 between the central portion 7 and the output portion 8 can be provided on the substrate by providing a projection in place of the above-described heat radiating plate. It may be divided into several rooms.
【００１０】[0010]
【発明の効果】本発明は同一プリント基板上に高い温度
でも使用可能な部品と可能な限り低い温度で使用したい
部品とを実装する場合に、プリント基板上に仕切りを設
けることによって複数の異なった温度の室を形成させ、
可能な限り低い温度で使用したい部品に対する高温部品
からの輻射熱を遮るため、その室の雰囲気温度は上昇し
にくくなる。また、比較的温度の低い室に電解コンデン
サを配置することで電解コンデンサの寿命を延ばす効果
がある。さらに、高温部品と電解コンデンサとの距離も
縮めることができるため、プリント基板の小型化の効果
もある。According to the present invention, when parts which can be used at a high temperature and parts which are to be used at the lowest possible temperature are mounted on the same printed circuit board, a plurality of different parts can be provided by providing partitions on the printed circuit board. To form a temperature chamber,
Since the radiant heat from the high-temperature component to the component to be used at a temperature as low as possible is blocked, the ambient temperature in the room hardly rises. In addition, disposing the electrolytic capacitor in a room having a relatively low temperature has the effect of extending the life of the electrolytic capacitor. Further, since the distance between the high-temperature component and the electrolytic capacitor can be reduced, the size of the printed circuit board can be reduced.
【図１】本発明の第１実施例の概略構成図である。FIG. 1 is a schematic configuration diagram of a first embodiment of the present invention.
【図２】本発明の第１実施例の温度分布を示す説明図で
ある。FIG. 2 is an explanatory diagram showing a temperature distribution according to the first embodiment of the present invention.
【図３】本発明の第１実施例のケース内の部品の配置を
示す斜視図である。FIG. 3 is a perspective view showing an arrangement of components in a case according to the first embodiment of the present invention.
【図４】本発明の第２実施例のケースの外観を示す斜視
図である。FIG. 4 is a perspective view showing an appearance of a case according to a second embodiment of the present invention.
【図５】従来例の回路図である。FIG. 5 is a circuit diagram of a conventional example.
Ｑ1 〜Ｑ3 スイッチング素子 Ｄ1 ダイオード Ｃ1A，Ｃ1B 電解コンデンサ Ｃ2 〜Ｃ4 電解コンデンサ ５ 商用電源入力端子 ６ 入力部 ７ 中央部 ８ 出力部 ９，１０ 仕切りQ 1 to Q 3 switching elements D 1 diode C 1A, C 1B electrolytic capacitor C 2 -C 4 electrolytic capacitors 5 commercial power input terminal 6 input unit 7 central portion 8 outputs 9, 10 partition
───────────────────────────────────────────────────── フロントページの続き (72)発明者 藤本 幸司 大阪府門真市大字門真1048番地 松下電工 株式会社内 (72)発明者 増永 正文 大阪府門真市大字門真1048番地 松下電工 株式会社内 ──────────────────────────────────────────────────の Continuing on the front page (72) Koji Fujimoto, Inventor 1048, Kazuma Kadoma, Osaka Prefecture Matsushita Electric Works, Ltd.
Claims (6)
流器と、整流器から得られる脈流電圧を安定な直流電圧
にする平滑用コンデンサを含む直流電源部と、前記直流
電圧を高周波に変換するインバータ部とから構成され、
前記整流器、直流電源部、インバータ部に使用している
使用温度範囲の異なる電子部品がランプ形状に沿った方
向に細長に形成された同一プリント基板に実装されてい
る放電灯点灯装置において、プリント基板上の空間に温
度の異なった空間を形成し、前記個々の温度空間に適し
た電子部品を実装配置することを特徴とする放電灯点灯
装置。1. A rectifier for full-wave rectifying an AC voltage of a commercial power supply, a DC power supply unit including a smoothing capacitor for converting a pulsating voltage obtained from the rectifier to a stable DC voltage, and converting the DC voltage to a high frequency. And an inverter section.
In the discharge lamp lighting device, the rectifier, the DC power supply unit, and the electronic component having different operating temperature ranges used in the inverter unit are mounted on the same printed circuit board which is elongated in a direction along the lamp shape. A discharge lamp lighting device, wherein spaces having different temperatures are formed in an upper space, and electronic components suitable for the individual temperature spaces are mounted and arranged.
ことを特徴とする請求項１記載の放電灯点灯装置。2. The discharge lamp lighting device according to claim 1, wherein a converter circuit is used in the DC power supply unit.
で異なった空間を作り出すことを特徴とする請求項１又
は２記載の放電灯点灯装置。3. The discharge lamp lighting device according to claim 1, wherein different spaces are created by providing partitions on the printed circuit board.
デンサを実装配置することを特徴とする請求項１又は２
又は３記載の放電灯点灯装置。4. A smoothing capacitor mounted in a temperature space having the lowest temperature.
Or the discharge lamp lighting device according to 3.
て、スイッチング素子等の放熱板の形状はケース断面と
略同一であり、前記放熱板によりケース内に温度の違っ
た室を形成する仕切りを構成したことを特徴とする請求
項１又は２又は３又は４記載の放電灯点灯装置。5. The printed circuit board is housed in a case, and the shape of a heat radiating plate such as a switching element is substantially the same as the cross section of the case. The heat radiating plate forms a partition for forming a chamber having a different temperature in the case. The discharge lamp lighting device according to claim 1, 2 or 3 or 4, wherein:
穴を明けることを特徴とする請求項５記載の放電灯点灯
装置。6. The discharge lamp lighting device according to claim 5, wherein a hole is formed in a case portion where a temperature is to be lowered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8344282A JPH10188655A (en) | 1996-12-24 | 1996-12-24 | Discharge lamp lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8344282A JPH10188655A (en) | 1996-12-24 | 1996-12-24 | Discharge lamp lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10188655A true JPH10188655A (en) | 1998-07-21 |
Family
ID=18368039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8344282A Pending JPH10188655A (en) | 1996-12-24 | 1996-12-24 | Discharge lamp lighting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10188655A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1246210A3 (en) * | 2001-03-30 | 2004-03-10 | Toshiba Lighting & Technology Corporation | Electrical apparatus |
| JP2007265815A (en) * | 2006-03-28 | 2007-10-11 | Matsushita Electric Works Ltd | Electrodeless discharge lamp lighting device and lighting apparatus using the same |
-
1996
- 1996-12-24 JP JP8344282A patent/JPH10188655A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1246210A3 (en) * | 2001-03-30 | 2004-03-10 | Toshiba Lighting & Technology Corporation | Electrical apparatus |
| JP2007265815A (en) * | 2006-03-28 | 2007-10-11 | Matsushita Electric Works Ltd | Electrodeless discharge lamp lighting device and lighting apparatus using the same |
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