JPS61237400A - Illumination lighting system - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 ［技術分野］ 式に関するものである。[Detailed description of the invention] [Technical field] It is related to the formula.

［背景技術］ 近年、照明装置の小型・軽量化及び高効率化を目的とし
て点灯回路を高周波化し、蛍光灯を高周波点灯させるも
のが普及、定着しつつある。[Background Art] In recent years, in order to make lighting devices smaller, lighter, and more efficient, lighting circuits have been made to operate at higher frequencies, and fluorescent lamps that operate at high frequencies have become popular and established.

この点灯回路の一例としてはまず商用電源から直流電源
を得て、この直流電源の直流電力を高周波変換回路によ
り高周波化し、その高周波電力で蛍光灯を点灯させるも
のが広く提供されている。As an example of this lighting circuit, one that first obtains DC power from a commercial power source, converts the DC power of this DC power source into a high frequency using a high frequency conversion circuit, and lights a fluorescent lamp with the high frequency power is widely available.

更に蛍光灯の弁傘を考慮して予熱・始動回路に工夫がな
されている。周波数については小型、軽量化低騒音化の
為に２０ＫＨｚ以上の高周波が使われるのが普通である
。このように構成、設計された蛍光灯高周波照灯装置に
おいては、主に節電（省電力）を狙いとした節電型照明
装置として、商用周波数（５０／６０Ｈｚ）による点灯
と同等の明るさが確保できれば良いという節電型設計に
徹したものがあり、この場合ランプ電流は高周波の為蛍
光灯のフィラメント電極降下損等が少なくなるの一！ｈ
　怠ｍ国ｊ士Ｎｔ＾々訂酩しｉ二り一彎楡Ｉ↓ｄｓす声
ノて、同箸の光束が出せるのである。しかしながら、節
電型を重視するに偏り、明るさく全光束）アップが無く
、消費者の必要照度に答えられる明るさとしていたずら
に蛍光灯の本数を増加させざるを得ず、その為取付は器
具台数又は器具寸法が増し、施工、デザイン、経済上等
種々の不都合を呈していた。Furthermore, the preheating and starting circuits have been devised to take into consideration the bulbs of fluorescent lamps. Regarding the frequency, a high frequency of 20 KHz or higher is normally used to make the device smaller, lighter, and less noisy. Fluorescent high-frequency lighting equipment configured and designed in this way is a power-saving lighting equipment aimed mainly at saving electricity, and ensures brightness equivalent to lighting at commercial frequencies (50/60Hz). There is a design that focuses on energy-saving design, and in this case, the lamp current is at a high frequency, so the drop loss of the filament electrode of a fluorescent lamp is reduced! h
The same amount of light can be produced by the same pair of chopsticks. However, the emphasis is on energy-saving models, and there is no increase in brightness (total luminous flux), and the number of fluorescent lights has to be increased unnecessarily in order to achieve the brightness that meets the illuminance needs of consumers. Alternatively, the size of the equipment increases, which presents various problems in terms of construction, design, economics, etc.

他方ランプ電流を商用周波数の点灯時のそれとほぼ同じ
に設定し、明るさく全光束）アップを狙いとした高周披
貞灯の照明器具が住宅向きとして提供されでいる。この
場合も高周波点灯時のランプ電流が商用周波数による定
格点灯時のランプ電流とほぼ同じになるように設定しで
あるため、明るさく全光束）アップが商用周波数による
定格点灯時の全光束を１００％とすると、多くて１５％
以下であることが実測により確認されている。但し蛍光
灯の種類や、ランプ電流に休止区間があるか否かにより
異なる。この為全光束が多く、且つより小型な照明器共
を求める消費者の要望には答えられなかった。つまりＦ
Ｌ２０の６灯用の照明器具の場合、住宅８畳〜１０畳に
使用されるが、上記１５％の光束アップでは蛍光灯が５
．２灯必要となり、５灯では所望の全光束が得られない
。結局６灯を用いることになり、明るさが少々アップす
るが、５灯のように小型の器具寸法にならず器具設計ま
で効果が生かせない状態であった。On the other hand, high-frequency radial lamp lighting equipment is available for residential use, with the lamp current set to approximately the same as that when the lamp is lit at a commercial frequency, with the aim of increasing brightness and total luminous flux. In this case as well, the lamp current during high frequency lighting is set to be approximately the same as the lamp current during rated lighting at a commercial frequency, so the brightness (total luminous flux) is increased by 100% compared to the total luminous flux during rated lighting at a commercial frequency. %, at most 15%
It has been confirmed by actual measurements that the following is true. However, it varies depending on the type of fluorescent lamp and whether or not there is a pause period in the lamp current. For this reason, it has not been possible to meet consumer demands for a smaller illuminator with a large total luminous flux. In other words, F
In the case of L20 6-lamp lighting equipment, it is used for houses of 8 tatami to 10 tatami mats, but when increasing the luminous flux by 15%, the fluorescent lamp will be 5 tatami mats.
．． Two lights are required, and the desired total luminous flux cannot be obtained with five lights. In the end, we ended up using 6 lights, which increased the brightness a little, but the size of the fixture was not as small as with 5 lights, so we were not able to take full advantage of the effectiveness of the fixture design.

その改善として５．２灯の内の０．２灯分をＦＬＩＯの
蛍光灯１本で補うことも考えられるが、照明器共を外か
ら見た場合に発光長が異なるため、奇異に感じられると
いう問題があり、点灯時の外観上好ましくない、しかも
ＦＬ２０とＦＬＩＯとの２種類の高周波点灯装置を設け
るか、若しくは第６図に示すように１種の高周波点灯装
置１の高周波出力をパランサ３を介して一括点灯させる
時でもＦＬ２０の蛍光灯２２゜Ｉ〜２２゜、のインピー
ダンスとＦＬｌｏの蛍光灯２．。のインピーダンスとの
差に等しいインピーダンス素子４をＦＬ２０の蛍光灯２
２゜、〜２２゜２とＦＬｌｏの蛍光灯２１０との直列回
路に挿入接続するか、パランサ３にインピーダンス素子
４の機能を付加した特殊なパランサを用いる必要があり
、いずれの場合でも部品点数が多くなってコストが高く
なるという欠点がある。As an improvement, it may be possible to replace 0.2 out of the 5.2 lights with a single FLIO fluorescent light, but it seems strange because the light emission lengths are different when looking at the lighting equipment from the outside. There is a problem that the appearance during lighting is undesirable.Moreover, it is necessary to provide two types of high frequency lighting devices, FL20 and FLIO, or to convert the high frequency output of one type of high frequency lighting device 1 into a parallel filter 3 as shown in FIG. Even when lighting all at once via the FL20 fluorescent lamp 22°I~22°, the impedance of the FLlo fluorescent lamp 2. . An impedance element 4 equal to the difference between the impedance of the FL20 fluorescent lamp 2
It is necessary to insert and connect the 2°, ~22°2 and FLlo fluorescent lamps 210 in a series circuit, or to use a special parancer that has the function of an impedance element 4 added to the parancer 3. In either case, the number of parts is small. There is a disadvantage that the number increases and the cost increases.

尚商用電源ＡＣは全波整流器５にて整流され且つ平滑コ
ンデンサ６にて平滑されて直流電源に変換され、高周波
点灯装置１の駆動電源となる。The commercial power supply AC is rectified by a full-wave rectifier 5 and smoothed by a smoothing capacitor 6 to be converted into a DC power source, which serves as a driving power source for the high-frequency lighting device 1.

ところで特に豪華さ、重厚さを出すために金属や、ガラ
スの容共用構成部品を使用するジャンプリアに適用した
場合、例えばＦＣＬ２０Ｘ６灯のジャンプリアが５灯に
なればその分だけ重量が軽減できるという効果があり、
大いに期待されるところであるが、従来のような点灯照
明方式ではこの期待に答えられなかった。By the way, when applied to Jump Rear, which uses shared metal and glass components to give it a sense of luxury and solidity, for example, if a Jump Rear with 6 FCL20 lights is reduced to 5 lights, the weight can be reduced by that amount. It is effective,
Although there are great expectations, conventional lighting systems have not been able to meet these expectations.

尚第７図、第８図はＦＣＬ４０の蛍光灯２４１ＦＣＬ３
２の蛍光灯２，２、ＦＣＬ２０の蛍光灯２２゜を商用周
波数点灯時の全光束と同じ光束が得られるように高周波
ランプ電流値を設定した従沫の３打直列点灯回路、及び
パランサ３と予熱トランス７及び予熱時にオンさせる予
熱スイッチＳＷとを用いて蛍光灯ＬＯ１２コ２の２灯と
、蛍光灯２４６の１灯とを分けて点灯させる点灯回路を
夫々示しでいる。Figures 7 and 8 are FCL40 fluorescent lamps 241FCL3.
Fluorescent lamp 2, 2, FCL20 fluorescent lamp 22°, high frequency lamp current value set so as to obtain the same luminous flux as the total luminous flux when lit at a commercial frequency, and a 3-stroke series lighting circuit of Hosei, and a parancer 3. A lighting circuit is shown that separately lights two fluorescent lamps LO12 and one fluorescent lamp 246 using a preheating transformer 7 and a preheating switch SW that is turned on during preheating.

［発明の目的１ 本発明は上述の問題点に鑑みて為されたもので、その目
的とするところは蛍光灯の寿命に影響を与えることなく
省電力も図りつつ、効率よく蛍光灯を点灯させて明るさ
く全光束）のアップを図り、しかも器具の小型・軽量化
が実現できる点灯照明方式を提供するにある。[Objective of the Invention 1 The present invention was made in view of the above-mentioned problems, and its purpose is to efficiently light fluorescent lamps while saving power without affecting the life of the fluorescent lamps. The object of the present invention is to provide a lighting system that can increase the brightness (total luminous flux) and make the fixture smaller and lighter.

［発明の開示］ 夾ｍ 第１図はＦＣＬ３２からなる蛍光灯２，２と、ＦＣＬ４
０からなる蛍光灯２４゜とを２打直列回路に接続してイ
ンバータ回路からなる高周波点灯装置１の発振トランス
Ｔの出力を印加して点灯させる本発明方式による実施例
回路を示しており、蛍光灯２，２と２４゜との共通接続
側のフィラメント電極には予熱トランス７の２次出力が
接続され、予熱が行えるようになっている。この予熱ト
ランス７の１次側には予熱スイッチＳＷ及び各蛍光灯２
，２と２４＋１の電源側のフィラメント電極を介して高
周波出力が接続されており、予熱スイッチＳＷのオン時
に予熱がなされる。しかしてＦＣＬ３２、ＦＣＬ４０の
２灯の蛍光灯２，２．２４゜を使用して、ＦＣＬ４０、
ＦＣＬ３２、ＦＣＬ２０の３灯を商用周波数で点灯させ
た場合の明るさく全光束）と同等の明るさを得ようとす
るのが本実施例である。[Disclosure of the Invention] Figure 1 shows fluorescent lamps 2, 2 each consisting of an FCL32, and an FCL4.
This figure shows an embodiment circuit according to the present invention, in which a fluorescent lamp 24° consisting of The secondary output of the preheating transformer 7 is connected to the filament electrode on the common connection side of the lamps 2, 2 and 24°, so that preheating can be performed. The primary side of this preheating transformer 7 includes a preheating switch SW and each fluorescent lamp 2.
, 2 and 24+1 are connected to the high frequency output through the filament electrodes on the power supply side, and preheating is performed when the preheating switch SW is turned on. Therefore, using two fluorescent lamps 2,2.24°, FCL32 and FCL40, FCL40,
This embodiment attempts to obtain a brightness equivalent to the brightness (total luminous flux) when three lamps, FCL32 and FCL20, are turned on at a commercial frequency.

ここで本実施例に使用するＦＣＬ３２、ＦＣＬ４０を２
０℃の雰囲気で４０ＫＨｚの高周波により点灯させた際
のランプ効率ｅａｔ／−と光束について、商用周波数の
点灯時の定格電流値Ｉ　ＯＡＣ以上流した高周波ランプ
電流値ｒ　ｘＨｐとの関係を測定したところ第２図のよ
うな結果を得た。該第２図において横細に高周波ランプ
電流値Ｉ　ＸＨＦを、商用周波数点灯時の定格電流値Ｉ
　ＯＡＣを基準としてその倍数で表しており、また縦軸
はランプ効率α−／−を、商用周波数点灯時を基準とし
てその相対値で表している。また光束も同様である。こ
の図において曲線イで示すようにＦＣＬ３２のランプ効
率を鵬ハは０６９５×ｌ０ＡＣでピークとなり、ＦＣＬ
４０のランプ効率Ｑ　ｍｌＨのピークは曲線口で示すよ
うに０．８５　Ｘ　ｌ０ＡＣ付近にある。ここで高周波
ランプ電流値を増加させると、徐々にランプ効率１．　
ｍｌＨが下降し、丁度商用周波数による点灯時における
ランプ効率αｍ／Ｈと等しくなる点を、ＦＣＬ３２の場
合をＩ　ｍａｘＨｐ３２とし、ＦＣＬ　４０の場合をＩ
　Ｉ＠ａＸＨｐ４０とすると、Ｉ　ｌ１ｌａＸＨｐ３２
は１．３Ｘ　Ｉ　ＯＡＣ付近にあり、Ｉ−ａＸＨｐ４０
は１．３５×ＩｏＡＣ付近にあることが分かる。他方Ｆ
ＣＬ３２、ＦＣＬ４０の各光束はハ、二の各曲線で示す
ように高周波ランプ電流値Ｉ　ＸＨＦが増加するに従っ
てランプ効率αＩＩ／−が下降することにより徐々に飽
和傾向の曲線を描いている。Here, FCL32 and FCL40 used in this example are 2
We measured the relationship between the lamp efficiency eat/- and the luminous flux when the lamp was lit with a high frequency of 40 KHz in an atmosphere of 0°C, and the high frequency lamp current value r x Hp when the rated current value I OAC was passed or higher when the lamp was lit at a commercial frequency. The results shown in Figure 2 were obtained. In Fig. 2, the high frequency lamp current value I
The graph is expressed as a multiple of OAC as a reference, and the vertical axis represents lamp efficiency α-/- as a relative value with reference to commercial frequency lighting. The same applies to the luminous flux. In this figure, as shown by curve A, the lamp efficiency of FCL32 peaks at 0695×10AC, and FCL
The peak of the lamp efficiency Q mlH of 40 is around 0.85 x 10 AC as shown by the curve opening. When the high-frequency lamp current value is increased, the lamp efficiency gradually increases to 1.
The point at which mlH decreases and becomes exactly equal to the lamp efficiency αm/H during lighting at a commercial frequency is defined as I maxHp32 for FCL32 and I for FCL 40.
If I@aXHp40, I l1laXHp32
is around 1.3X I OAC, and I-aXHp40
It can be seen that the value is around 1.35×IoAC. On the other hand F
Each of the luminous fluxes of CL32 and FCL40, as shown by the curves C and 2, gradually draws a curve that tends to saturate as the lamp efficiency αII/- decreases as the high frequency lamp current value IXHF increases.

この第２図の測定結果から次のことが言える。The following can be said from the measurement results shown in FIG.

つまり０．９ＸＩｏＡｃからＩ　ｍａｘＨＦｓ２又は■
ｍａｘＨｐ４゜の点迄に高周波ランプ電流値Ｉ　ＸＨＦ
を設定すると、従来の商用周波数点灯の明るさより明る
（且つランプ効率Ｑｔａ／−が商用周波数点灯のものよ
り高く、節電による省電力型の点灯゛回路ができる。In other words, from 0.9XIoAc to I maxHFs2 or ■
High frequency lamp current value I XHF up to the point of maxHp4°
By setting , the brightness is brighter than that of conventional commercial frequency lighting (and the lamp efficiency Qta/- is higher than that of commercial frequency lighting, and a power-saving lighting circuit can be created).

ここで問題となるランプ寿命について本発明者らが調査
したところ、第３図に示すような結果が得られた。この
第３図はＦＣＬ４０．ＦＣＬ３０の２灯を５組常温下で
２．５時間点灯、０．５時間消灯のサイクルで、第１図
回路により点灯させた場合の寿命調査の結果を示してお
り、横軸は高周波ランプ電流値工ｘ□を、また縦軸は商
用周波数点灯（グロ一点灯管使用）時の寿命を１．０と
した相対値を示し、同図中イは高周波ランプ電流値Ｉ　
ＸＩ（Ｆが１，０ＸＩＯＡＣの場合を、口は高周波ラン
プ電流値Ｉ　ＸＨＦが１．ｌＸｌ０ＡＣの場合を、ハは
高周波ランプ電流値ｒ　ＸＨＦが１．２Ｘ１．ＡＣの場
合を夫々示す。この第３図から商用周波数による定格点
灯と同じ高周波ランプ電流値■ＸＨＦ％つまりＩ　ＸＨ
Ｆ＝１　、　　ＯＸ　Ｉ　ＯＡＣとした場合、蛍光灯の
フィラメント電極の断線寿命は商用周波数点灯（グロ一
点′灯管使用）時のフィラメント電極の断線寿命を基準
とした場合の２倍以上になることが分かった。When the present inventors investigated the lamp life, which is a problem here, the results shown in FIG. 3 were obtained. This figure 3 shows FCL40. The graph shows the results of a lifespan study when 5 sets of two FCL30 lamps were turned on at room temperature using the circuit shown in Figure 1 in a cycle of 2.5 hours on and 0.5 hours off, and the horizontal axis shows the high-frequency lamp current. The vertical axis shows the relative value with the lifespan when lit at commercial frequency (using a glow lamp lamp) as 1.0, and A in the figure shows the high-frequency lamp current value I.
XI(F is 1.0XIOAC, 口 is the case where the high frequency lamp current value IXHF is 1.1X10AC, C is the case where the high frequency lamp current value r From the figure, the high frequency lamp current value which is the same as the rated lighting at commercial frequency ■XHF% or I XH
When F = 1 and OX I OAC, the disconnection life of the filament electrode of a fluorescent lamp is more than twice that of the filament electrode disconnection life when lit at a commercial frequency (using a single glow lamp). I understand.

このことは第１図実施例回路が商用電源ＡＣを全波整流
器５により全波整流し平滑コンデンサ６により完全平滑
した脈動の無い直流電源を使用する為、フィラメント電
極に再点弧時のストにス等が全く無い点及び始動時に予
熱スイッチＳＷをオンさせて充分予熱させた後にオフし
て点灯に至る完全な先行予熱方式であって、フィラメン
ト電極に始動時と予熱時にストレスをかけずに充分に予
熱ができ、また始動印加電圧も最低限低くし且つ点灯時
に予熱を完全に遮断しているためフィラメント電極のス
ポット温度が下がり寿命へ良い効果をもたらしたこと等
の諸要因が複合、相乗した結果であると推定される。This is because the circuit of the embodiment shown in FIG. 1 uses a non-pulsating DC power source, which is obtained by rectifying the commercial power AC with a full-wave rectifier 5 and completely smoothing it with a smoothing capacitor 6. In addition, it is a complete preheating method that turns on the preheating switch SW at the time of startup to allow sufficient preheating, and then turns it off to turn on the light. This is due to a combination of factors such as the fact that the starting voltage is kept to a minimum and the preheating is completely cut off during lighting, which lowers the spot temperature of the filament electrode and has a positive effect on the lifespan. It is estimated that this is the result.

この結果高周波ランプ電流値Ｉ　ＸＨＦを商用周波数点
灯時の定格ランプ電流値Ｉ　ＯＡＣより多く　（’Ｉ　
Ｘ）ｌｐ＞　１　、　ＯＸ　Ｉ　０ＡＣ）シても、ラン
プ寿命は充分商用周波数点灯時の寿命と同じになること
が予想され、またその結果も第３図に示すようになった
。As a result, the high frequency lamp current value I
Even if X)lp>1, OXI0AC), the lamp life is expected to be sufficiently the same as the life when lit at a commercial frequency, and the results are also shown in FIG.

しかしてＦＣＬ４０、ＦＣＬ３２、ＦＣＬ２０の３灯を
商用周波数で点灯させた場合と同等の明るさを第１図回
路により得ようとすると、光束アップが２３％必要とな
り１．そのときの高周波ランプ電流値Ｉ　ＸＨＦは１．
１７ＸＩＯＡＣとなるが、この高周波ランプ電流値Ｉ　
ＸＨＦは上述の寿命の点からも満足する値であるから、
本実施例回路では高周波７く灯装置１の回路定数を１．
１７ＸＩＯＡＣなる元高周波ランプ電流値Ｉ　Ｘ）ＩＦ
が得られるよう調整することにより、明るさを同等に確
保し且つ蛍光灯の本数を１本少なくする事ができること
になる。However, if you try to obtain the same brightness as when the three lamps FCL40, FCL32, and FCL20 are turned on at a commercial frequency using the circuit shown in Figure 1, you will need to increase the luminous flux by 23%. The high frequency lamp current value IXHF at that time is 1.
17XIOAC, but this high frequency lamp current value I
Since XHF is a satisfactory value in terms of the above-mentioned lifespan,
In this embodiment circuit, the circuit constant of the high frequency lighting device 1 is set to 1.
17XIOAC Original high frequency lamp current value I
By making adjustments to obtain this, it is possible to maintain the same level of brightness and reduce the number of fluorescent lamps by one.

第４図（ａ）（ｂ）は本実施例によるコードＣにて吊下
げる照明器具Ａ１と商用周波数点灯の従来例による照明
器具Ａ２を夫々示しており、本実施例と従来例とを比較
すると従来例器具のセードＤの高さがト■であるに対し
て、ＦＣＬ２０の蛍光灯２□。FIGS. 4(a) and 4(b) respectively show a lighting fixture A1 suspended by a cord C according to this embodiment and a lighting fixture A2 according to a conventional example of commercial frequency lighting, and a comparison between this embodiment and the conventional example shows The height of the shade D of the conventional fixture is □, whereas the height of the shade D of the FCL20 is 2□.

の分だけ本実施例のセードＤはほぼ低い高さｈとなり小
型化が図れた。また従来例では各蛍光灯２＜ｏｒ　２３
２１２２０用に夫々鋼鉄型の安定器Ｂ＜ｏ、Ｂｚ２ｔＢ
２゜を用いているため重量が重いが、本実施例は高周波
点灯装置１が軽いのは勿論のこと蛍光灯の゛本数の減少
及びそれに伴う支持金具の減少により一層の軽量化が図
れた。その上蛍光灯数の減少によりコストダウンとなり
、しかもランプ交換時の手間が２／３に減り、また交換
費（蛍光灯の費用、手間賃）も安くなり、更にランプ効
率ごＩＩＩ／１１Ｉが商用周波数点灯時に比べで高く設
定することにより、節電、省電力が図れて消費電力費が
安価となり、結果維持費の低減化が図れた。By this amount, the shade D of this embodiment has a substantially lower height h, resulting in miniaturization. In addition, in the conventional example, each fluorescent lamp 2<or 23
Steel type ballast B<o, Bz2tB for 21220 respectively
Although it is heavy due to the use of a 2° angle, in this embodiment, not only the high frequency lighting device 1 is light but also the weight can be further reduced by reducing the number of fluorescent lamps and the accompanying reduction in supporting metal fittings. In addition, the cost is reduced by reducing the number of fluorescent lamps, and the labor required to replace lamps is reduced by 2/3, the replacement cost (cost of fluorescent lamps and labor charges) is also lower, and the lamp efficiency is lower than that of III/11I at commercial frequencies. By setting the light higher than when the lights are on, we were able to conserve power and reduce power consumption costs, resulting in lower maintenance costs.

ところで第２図に示した特性よりＦＣＬ３２の蛍光灯を
５灯商用周波数により点灯させた場合の明るさを４灯の
高周波点灯により得ようとする場合高周波ランプ電流値
Ｉ　ＸＨＦが１．１５’ｘＩ。ＡＣとなるように高周波
点灯装置１の回路定数を設定しであり、上記実施例１と
同様な効果が得られた。By the way, from the characteristics shown in Fig. 2, if you want to obtain the brightness of 5 FCL32 fluorescent lamps lit at commercial frequency by lighting 4 lamps at high frequency, the high frequency lamp current value IXHF will be 1.15'xI. . The circuit constants of the high-frequency lighting device 1 were set so as to be AC, and the same effect as in Example 1 was obtained.

ところで上記実施例はＦＣＬ４０．ＦＣＬ３２の蛍光灯
を使用した実施例であったが、一般的に蛍光灯が小型（
小Ｗ）程フィラメント電極損失の効果が大きいため、光
束のアップ率が大きいと言われている。又殆どの種類の
蛍光灯では商用周波数点灯時の定格ランプ電流値１０Ａ
Ｃより低い高周波ランプ電流値Ｉ　ＸＨＦでランプ効率
αＩＩのピークがある。そこで第２図の特性図を一般的
に他の種類の蛍光灯を含めて平均的な値で書き直すと、
第５図に示すようになる。この図の光束の曲線イから分
かるように光束の上昇が直線的増加からずれて飽和傾向
となるのがほぼ１゜Ｉ　Ｘ　Ｘ　ＯＡＣの点付近である
。ＦＣＬ３２の場合は第２図から分かるようにその傾向
を示しているが、ＦＣＬ４０の場合はやや上の方である
がほぼ１゜Ｉ　Ｘ　Ｉ　ＯＡＣと言っても間違いない。By the way, the above embodiment is FCL40. Although this example used an FCL32 fluorescent lamp, fluorescent lamps are generally small (
It is said that the smaller the W), the greater the effect of filament electrode loss, and therefore the greater the rate of increase in luminous flux. Also, most types of fluorescent lamps have a rated lamp current of 10A when lit at commercial frequency.
The lamp efficiency αII has a peak at a high frequency lamp current value IXHF lower than C. Therefore, if we rewrite the characteristic diagram in Figure 2 using average values, including other types of fluorescent lamps, we get
The result is as shown in FIG. As can be seen from the luminous flux curve A in this figure, the increase in the luminous flux deviates from a linear increase and tends to saturation approximately around the point of 1° I X X OAC. In the case of FCL32, this tendency is shown as can be seen from FIG. 2, but in the case of FCL40, although it is slightly higher, it is safe to say that it is approximately 1°I X I OAC.

他方この１．１×■ｏＡＣの場合の光束は別の観照から
意味を持つものである。っまｌ）１．　１×１゜ＡＣは
光束アップが１５％〜２０％の範囲で得られ、同種類の
蛍光灯を７乃至６灯使用して商用周波数点灯させる照明
器具に対して同種の蛍光灯を６乃至５灯を使用して高周
波点灯させて蛍光灯を１灯減することができる値である
。通常住宅照明器具では概ね６灯が灯数の最大であり、
５灯以下が一般的である。これは部屋の大きさや、照明
器具のインテリア性からくる寸法制約及び施工性などか
らこのような灯数に決まっているのが現状である。On the other hand, the luminous flux in this case of 1.1×■oAC has meaning from another perspective. l)1. 1×1°AC can increase the luminous flux by 15% to 20%, and compared to a lighting fixture that uses 7 to 6 fluorescent lamps of the same type and lights at a commercial frequency, 6 to 5 of the same type of fluorescent lamps are used. This is the value that allows the use of high-frequency lighting to reduce the number of fluorescent lights by one. Generally, the maximum number of lights for residential lighting equipment is 6 lights,
5 lights or less is common. Currently, this number of lights is determined due to the size of the room, dimensional constraints due to the interior design of the lighting equipment, and ease of construction.

よって同種類（同Ｗ）の蛍光灯使用で、商用周波数点灯
時の点灯灯数を高周波点灯で削減するため灯灯数を高周
波点灯で削減するためとの理由などにより高周波ランプ
電流値Ｉ　Ｘ）ＩＦが１．１Ｘ工。ＡＣ付近に定まって
くるのである。Therefore, when using fluorescent lamps of the same type (same W), the high-frequency lamp current value I IF is 1.1X engineering. It becomes fixed near AC.

また省電力の点灯方式としてはＩ　ｍａｘＨｐ以下の値
に高周波ランプ電流値Ｉ　ＸＨＦを定めなければならな
いから、結果高周波ランプ電流値Ｉ　Ｘ）ＩＦは次のよ
うに制約される。Furthermore, as a power-saving lighting method, the high frequency lamp current value IXHF must be set to a value less than or equal to ImaxHp, so the resulting high frequency lamp current value IX)IF is constrained as follows.

１．１×ｌ０ＡＣ≦Ｉ　Ｘ）ＩＰ≦Ｉ　ｍａＸＨｐ　＋
Ｈ・・’■上述したように高周波ランプ電流値ｒ　ＸＨ
ＦがＩ　ｗａｘＨＦに近付く程ランプ寿命が犠牲になっ
て全光束が増加するので、この点を配慮すれば高周波ラ
ンプ電流値■Ｘ□Ｆは次式のようになる。1.1×l0AC≦I X)IP≦I maXHp +
H...'■ As mentioned above, the high frequency lamp current value r
As F approaches IwaxHF, the lamp life is sacrificed and the total luminous flux increases.If this point is taken into account, the high frequency lamp current value ■X□F becomes as shown in the following equation.

Ｉ　ＸＨＦ≦Ｉａ・・・・・・■ 但しＩａはフィラメント電極断線寿命が商用周波数点灯
時の寿命と同等となる高周波ランプ電流値Ｉａである。IXHF≦Ia...■ However, Ia is the high frequency lamp current value Ia at which the filament electrode breakage life is equivalent to the life when the lamp is lit at a commercial frequency.

従って、ランプ寿命を考慮すれば■と０式の両方を満足
する高周波ランプ電流値工ＸＩ（Ｆを採用する必要があ
る。Therefore, in consideration of the lamp life, it is necessary to adopt a high frequency lamp current value XI (F) that satisfies both formula (2) and formula 0.

尚高周波点灯装置１の駆動電源として全波整流ｌ−１−
−−ｆ４ＦＬＰ−ＴＦＬ冶Ｑ１９）９７Ｊ’３ｍ１ｌｌ
ｈ１１１４Ｌ？７ｔ「＃ｇ’Ｍｌ各ｖｑ＋−用いた場合
、ランプ電流に休止区間が発生するため第５図に示すラ
ンプ効率Ｑ　ｍ　／　’Ｉ４と光束の曲線口、イ全体が
下方に移動し、脈動が多くなるほど高周波ランプ電流値
Ｉ　ＸＨＦの設定範囲が狭くなる。またランプ寿命もフ
ィラメント電極にストレスを生じ短くなるが本発明の目
的とするところを何等妨げるものではないことはいうま
でもない。Further, full-wave rectification l-1- is used as a driving power source for the high-frequency lighting device 1.
--f4FLP-TFLJQ19) 97J'3m1ll
h1114L? 7t'#g'Ml When each vq+- is used, a pause section occurs in the lamp current, so the entire curve of the lamp efficiency Q m/' I4 and luminous flux shown in Fig. 5, A moves downward, causing pulsation. The higher the number, the narrower the setting range of the high-frequency lamp current value IXHF.Furthermore, the lamp life will be shortened due to stress on the filament electrode, but it goes without saying that this does not impede the purpose of the present invention in any way.

［発明の効果］ 本発明は商用周波数点灯時の蛍光灯の定格ランプ電流値
を越え、光束の増加側でランプ効率が商用周波数点灯時
と同じとなる値を上限とする範囲内に設定した高周波ラ
ンプ電流値で当該蛍光灯を。[Effects of the Invention] The present invention provides a high frequency lamp set within a range that exceeds the rated lamp current value of a fluorescent lamp when lit at a commercial frequency and whose upper limit is a value at which the lamp efficiency on the side of increasing luminous flux is the same as when lit at a commercial frequency. The fluorescent lamp in question according to the lamp current value.

高周波点灯させるので、高いランプ効率により蛍光灯を
点灯でき、しかも全光束を大幅に増加させることができ
るから、従来の照明器具において必要だった蛍光灯の本
数を削減して同等の全光束を得ることが可能となり、し
かも省電力が図れ、更に灯数の削減による照明器共の小
型化、軽量化、コストの低減、更に維持費の低減が可能
となるという効果がある。Since high frequency lighting is used, fluorescent lamps can be lit with high lamp efficiency, and the total luminous flux can be significantly increased, so the number of fluorescent lamps required in conventional lighting equipment can be reduced and the same total luminous flux can be obtained. In addition, it is possible to save power, and by reducing the number of lights, it is possible to reduce the size and weight of the illuminator, reduce costs, and reduce maintenance costs.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明方式による実施例１の回路図、第２図乃
至ｖｉ３図は同上の説明図、第４図（、）（ｂ）は同上
と従来例との比較説明図、第５図は本発明の詳細な説明
図、第６図乃至第８図は従来例の回路図であり、１は高
周波点灯装置、２は蛍光灯１、ｒｏ＾。は商用周波数点
灯時の定格ランプ電流値、Ｉ　ＸＨＦは高周波ランプ電
流値である。 代理人　弁理士　石　１）長　七 −」９ 、訃へ″ｒ−ｆｉ喬 第６（２）Fig. 1 is a circuit diagram of Embodiment 1 according to the method of the present invention, Figs. 2 to VI3 are explanatory diagrams of the same as the above, Fig. 4 (,) (b) are explanatory diagrams comparing the same with the conventional example, and Fig. 5 1 is a detailed explanatory diagram of the present invention, and FIGS. 6 to 8 are circuit diagrams of conventional examples, where 1 is a high frequency lighting device, 2 is a fluorescent lamp 1, and ro^. is the rated lamp current value during commercial frequency lighting, and IXHF is the high frequency lamp current value. Agent Patent Attorney Shi 1) Long 7-"9, to the deceased"r-fi Qiao No. 6 (2)

Claims (3)

【特許請求の範囲】[Claims] （１）商用周波数点灯時の蛍光灯の定格ランプ電流値を
越え、光束の増加側でランプ効率が商用周波数点灯時と
同じとなる値を上限とする範囲内に設定した高周波ラン
プ電流値で当該蛍光灯を高周波点灯させることを特徴と
する照明点灯方式。(1) The high-frequency lamp current value is set within a range that exceeds the rated lamp current value of the fluorescent lamp when lit at a commercial frequency and the upper limit is a value at which the lamp efficiency on the side of increasing luminous flux is the same as when lit at a commercial frequency. A lighting method characterized by lighting fluorescent lamps at high frequencies. （２）高周波ランプ電流値の設定範囲の下限を商用周波
数点灯時の定格ランプ電流値の略１．１倍としたことを
特徴とする特許請求の範囲第１項記載の照明点灯方式。(2) The lighting method according to claim 1, wherein the lower limit of the setting range of the high-frequency lamp current value is approximately 1.1 times the rated lamp current value when lighting at a commercial frequency. （３）高周波ランプ電流値の設定範囲の上限を商用周波
数点灯時におけるランプ寿命と同等となる値としたこと
を特徴とする特許請求の範囲第１項又は第２項記載の照
明点灯方式。(3) The lighting method according to claim 1 or 2, wherein the upper limit of the setting range of the high-frequency lamp current value is set to a value equivalent to the lamp life when lit at a commercial frequency.