JPH09289092A - Lighting system - Google Patents
Lighting systemInfo
- Publication number
- JPH09289092A JPH09289092A JP8100590A JP10059096A JPH09289092A JP H09289092 A JPH09289092 A JP H09289092A JP 8100590 A JP8100590 A JP 8100590A JP 10059096 A JP10059096 A JP 10059096A JP H09289092 A JPH09289092 A JP H09289092A
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- lighting
- fuse
- switch
- circuit
- 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
Classifications
-
- 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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する利用分野】本発明は照明装置に関するも
のであり、更に詳しくは、交流電源通電時及び遮断時共
用のインバータ回路で照明負荷を点灯させる照明装置に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device, and more particularly, to a lighting device for lighting a lighting load by an inverter circuit which is commonly used when an AC power source is energized and cut off.
【０００２】[0002]
【従来の技術】本発明に係る第１従来例の回路図を図４
に示す。2. Description of the Related Art FIG. 4 is a circuit diagram of a first conventional example according to the present invention.
Shown in
【０００３】本回路は、交流電源Ｖａｃの２つの電源線
と、例えば壁スイッチＳＷ１などのオンオフにより、交
流電源Ｖａｃの通電時（以下、平常時と呼ぶ。）に照明
負荷の点灯と不点灯とを切り換える為の１線とを接続す
る３線方式を有し、平常時及び交流電源Ｖａｃの遮断時
（以下、非常時と呼ぶ。）を１つのインバータ回路で共
用で照明負荷を高周波点灯させる照明装置であり、交流
電源Ｖａｃと、交流電源Ｖａｃに直列接続された壁スイ
ッチＳＷ１と、照明負荷の非常点灯の点検の為の点検ス
イッチＳＷ２と、壁スイッチＳＷ１と点検スイッチＳＷ
２とを介して交流電源Ｖａｃの両端に並列接続され、照
明負荷Ｌａを平常時点灯させる安定器７と、点検スイッ
チＳＷ２を介して交流電源Ｖａｃの両端に並列接続さ
れ、照明負荷Ｌａを非常時点灯させる非常点灯ブロック
８とから構成される。なお、照明負荷Ｌａには放電灯Ｌ
ａを用いている。This circuit turns on and off the lighting load when the AC power supply Vac is energized (hereinafter referred to as "normal time") by turning on and off the two power supply lines of the AC power supply Vac and the wall switch SW1 for example. A lighting system that has a three-wire system for connecting with one line for switching the power supply, and uses one inverter circuit to share the lighting load at a high frequency during normal times and when the AC power supply Vac is cut off (hereinafter referred to as an emergency). The device is an AC power supply Vac, a wall switch SW1 connected in series to the AC power supply Vac, a check switch SW2 for checking the emergency lighting of a lighting load, a wall switch SW1 and a check switch SW.
2 is connected in parallel to both ends of the AC power supply Vac via the power supply 2 and the ballast 7 for lighting the lighting load La normally, and is connected in parallel to both ends of the AC power supply Vac via the inspection switch SW2 so as to connect the lighting load La in an emergency. It is composed of an emergency lighting block 8 for lighting. In addition, the discharge lamp L is used as the lighting load La.
a is used.
【０００４】非常点灯ブロック８は、点検スイッチＳＷ
２を介して交流電源電圧Ｖａｃを電力変換して直流電圧
を出力するＡＣ／ＤＣコンバータ５と、ＡＣ／ＤＣコン
バータ５の直流電圧出力を交流の高周波電圧に変換して
放電灯Ｌａに供給するインバータ回路ＩＮＶと、非常時
にインバータ回路ＩＮＶに直流電圧を供給する二次電池
Ｖｏと、ＡＣ／ＤＣコンバータ５により二次電池Ｖｏを
充電する為の充電回路部３と、ＡＣ／ＤＣコンバータ５
の直流電圧出力及び二次電池Ｖｏの直流電圧出力を切り
替えてインバータ回路ＩＮＶに接続する為の切替回路部
６とから構成される。また、安定器７の出力とインバー
タ回路ＩＮＶの出力とを切り替えて放電灯Ｌａに接続す
る切替部４を設けている。更に、点検スイッチＳＷ２
は、交流電源Ｖａｃから安定器７及び非常点灯ブロック
８への交流電源電圧の供給を遮断できる位置に設けられ
ている。The emergency lighting block 8 is an inspection switch SW.
AC / DC converter 5 for converting the AC power supply voltage Vac into a DC voltage by outputting the DC voltage output of AC / DC converter 5 and an inverter for converting the DC voltage output of the AC / DC converter 5 into an AC high frequency voltage and supplying the discharge lamp La. The circuit INV, the secondary battery Vo that supplies a DC voltage to the inverter circuit INV in an emergency, the charging circuit unit 3 for charging the secondary battery Vo by the AC / DC converter 5, and the AC / DC converter 5
And a switching circuit section 6 for switching the DC voltage output of the secondary battery Vo and the DC voltage output of the secondary battery Vo to connect to the inverter circuit INV. Further, there is provided a switching unit 4 that switches the output of the ballast 7 and the output of the inverter circuit INV to connect to the discharge lamp La. Furthermore, inspection switch SW2
Is provided at a position where the supply of the AC power supply voltage from the AC power supply Vac to the ballast 7 and the emergency lighting block 8 can be interrupted.
【０００５】次に動作を簡単に説明する。平常時は、壁
スイッチＳＷ１をオンすると、交流電源Ｖａｃから壁ス
イッチＳＷ１と点検スイッチＳＷ２と安定器７と切替部
４とを介して放電灯Ｌａを高周波点灯させると共に、交
流電源Ｖａｃから点検スイッチＳＷ２とＡＣ／ＤＣコン
バータ５と充電回路部３と切替回路部６とを介して二次
電池Ｖｏを充電する。また、壁スイッチＳＷ１をオフす
ると、交流電源Ｖａｃから安定器７への交流電源電圧の
供給が遮断されるので放電灯Ｌａは消灯すると共に、交
流電源Ｖａｃから点検スイッチＳＷ２とＡＣ／ＤＣコン
バータ５と充電回路部３と切替回路部６とを介して二次
電池Ｖｏを充電する。非常時は、交流電源Ｖａｃが遮断
されるので、安定器７への交流電源電圧の供給が遮断さ
れるので、二次電池Ｖｏがインバータ回路ＩＮＶの電源
となってインバータ回路ＩＮＶを発振動作させて放電灯
Ｌａを高周波で非常点灯させる。Next, the operation will be briefly described. In normal times, when the wall switch SW1 is turned on, the discharge lamp La is lit at a high frequency from the AC power supply Vac via the wall switch SW1, the inspection switch SW2, the ballast 7 and the switching unit 4, and the AC power supply Vac outputs the inspection switch SW2. The secondary battery Vo is charged via the AC / DC converter 5, the charging circuit unit 3, and the switching circuit unit 6. Further, when the wall switch SW1 is turned off, the supply of the AC power supply voltage from the AC power supply Vac to the ballast 7 is cut off, so that the discharge lamp La is turned off, and at the same time, the inspection switch SW2 and the AC / DC converter 5 are connected from the AC power supply Vac. The secondary battery Vo is charged via the charging circuit unit 3 and the switching circuit unit 6. In an emergency, since the AC power supply Vac is cut off, the supply of the AC power supply voltage to the ballast 7 is cut off, so that the secondary battery Vo serves as a power supply for the inverter circuit INV to cause the inverter circuit INV to oscillate. The discharge lamp La is lit at high frequency in an emergency.
【０００６】上述の様な構成を有する照明装置を多灯用
とした場合、複数の安定器７と非常点灯ブロック８とが
必要となるが、点検スイッチＳＷ２を介して互いの安定
器７及び非常点灯ブロック８への電流の廻り込み現象を
解決するものとして、特公昭５６−１６５１６号公報
と、特公昭５６−４７６７８号公報とに示したものがあ
る。When the lighting device having the above-mentioned structure is used for multiple lights, a plurality of ballasts 7 and an emergency lighting block 8 are required, but the ballast 7 and the emergency lighting block 8 are mutually connected via the inspection switch SW2. As a means for solving the phenomenon of current sneak into the lighting block 8, there are those disclosed in Japanese Patent Publication No. 56-16516 and Japanese Patent Publication No. 56-47678.
【０００７】本発明に係る第２従来例の回路図を図５に
示す。本回路は、交流電源Ｖａｃの２つの電源線と、例
えば壁スイッチＳＷ１などのオンオフにより平常時に照
明負荷の点灯と不点灯とを切り換える為の１線とを接続
する３線方式を有し、平常時及び非常時共用で複数の照
明負荷を高周波点灯させる照明装置であり、交流電源Ｖ
ａｃと、交流電源Ｖａｃに直列接続された壁スイッチＳ
Ｗ１と、交流電源Ｖａｃの両端に並列接続された複数の
点灯装置Ａ１〜Ａｎ（ｎは正の整数）と、壁スイッチＳ
Ｗ１のオンオフを検出する３線検出回路１１〜１ｎとか
ら構成され、各々の点灯装置Ａ１〜Ａｎの照明負荷には
放電灯Ｌａ１〜Ｌａｎを用いている。なお、３線検出回
路１１〜１ｎは、例えばフォトカプラを用いたものがあ
る。また、図５には点灯装置Ａ１，Ａ２だけを図示して
いる。A circuit diagram of a second conventional example according to the present invention is shown in FIG. This circuit has a three-wire system in which two power supply lines of the AC power supply Vac are connected to one line for switching lighting and non-lighting of the lighting load in a normal state by turning on / off the wall switch SW1 or the like. It is a lighting device that lights a plurality of lighting loads at high frequency for both emergency and emergency.
AC and a wall switch S connected in series with the AC power supply Vac
W1, a plurality of lighting devices A1 to An (n is a positive integer) connected in parallel to both ends of the AC power supply Vac, and a wall switch S
The three-wire detection circuits 11 to 1n for detecting ON / OFF of W1 are used, and the discharge lamps La1 to Lan are used as the illumination loads of the respective lighting devices A1 to An. It should be noted that the three-line detection circuits 11 to 1n include, for example, one using a photo coupler. Further, FIG. 5 shows only the lighting devices A1 and A2.
【０００８】点灯装置Ａ１は、異常時に交流電源Ｖａｃ
からの電源電圧の供給を遮断することにより３線検出回
路１１及び点灯装置Ａ１を保護するヒューズＦ１と、ヒ
ューズＦ１を介して交流電源電圧Ｖａｃを整流する整流
器ＤＢ１と、整流器ＤＢ１の出力電圧を電力変換して直
流電圧を出力するＤＣ／ＤＣコンバータ２１と、ＤＣ／
ＤＣコンバータ２１の直流電圧出力を交流の高周波電圧
に変換して放電灯Ｌａ１に供給するインバータ回路ＩＮ
Ｖ１と、非常時にインバータ回路ＩＮＶ１に直流電圧を
供給する二次電池Ｖ１と、ＤＣ／ＤＣコンバータ２１に
より二次電池Ｖ１を充電する為の充電回路３１と、ＤＣ
／ＤＣコンバータ２１の直流電圧出力及び二次電池Ｖ１
の直流電圧出力を切り替えてインバータ回路ＩＮＶ１に
接続する為の切替回路４１と、３線検出回路１１からの
検出信号を受けてインバータ回路ＩＮＶ１の発振動作を
制御する制御部６１とから構成される。なお、点灯装置
Ａ２〜Ａｎも点灯装置Ａ１と同様の構成であるので説明
は省略する。The lighting device A1 has an AC power supply Vac when an abnormality occurs.
The fuse F1 that protects the three-wire detection circuit 11 and the lighting device A1 by cutting off the supply of the power supply voltage from the power source, the rectifier DB1 that rectifies the AC power supply voltage Vac via the fuse F1, and the output voltage of the rectifier DB1 A DC / DC converter 21 for converting and outputting a DC voltage;
An inverter circuit IN that converts the DC voltage output of the DC converter 21 into an AC high frequency voltage and supplies it to the discharge lamp La1.
V1, a secondary battery V1 for supplying a DC voltage to the inverter circuit INV1 in an emergency, a charging circuit 31 for charging the secondary battery V1 by the DC / DC converter 21, and a DC
/ DC converter 21 DC voltage output and secondary battery V1
The switching circuit 41 for switching the DC voltage output of the above and connecting to the inverter circuit INV1 and the control unit 61 for receiving the detection signal from the three-wire detection circuit 11 and controlling the oscillation operation of the inverter circuit INV1. Since the lighting devices A2 to An have the same configuration as the lighting device A1, the description thereof will be omitted.
【０００９】次に動作を簡単に説明する。平常時は、壁
スイッチＳＷ１をオンすると、３線検出回路１１で壁ス
イッチＳＷ１のオンを検知してインバータ回路ＩＮＶ１
を発振動作させて放電灯Ｌａ１を点灯させると共に、交
流電源Ｖａｃから整流器ＤＢ１とＤＣ／ＤＣコンバータ
２１と充電回路３１とを介して二次電池Ｖ１を充電す
る。壁スイッチＳＷ１をオフすると、３線検出回路１１
で壁スイッチＳＷ１のオフを検知してインバータ回路Ｉ
ＮＶ１を発振停止するなどして放電灯Ｌａ１を消灯させ
ると共に、交流電源Ｖａｃから整流器ＤＢ１とＤＣ／Ｄ
Ｃコンバータ２１と充電回路３１とを介して二次電池Ｖ
１を充電する。非常時は、交流電源Ｖａｃが遮断される
ので、交流電源Ｖａｃからインバータ回路ＩＮＶ１への
電源電圧の供給が遮断され、二次電池Ｖ１がインバータ
回路ＩＮＶの電源となってインバータ回路ＩＮＶ１を発
振動作させて放電灯Ｌａを高周波で非常点灯させる。Next, the operation will be briefly described. In normal times, when the wall switch SW1 is turned on, the 3-wire detection circuit 11 detects that the wall switch SW1 is turned on and the inverter circuit INV1 is detected.
To illuminate the discharge lamp La1 and charge the secondary battery V1 from the AC power supply Vac via the rectifier DB1, the DC / DC converter 21, and the charging circuit 31. When the wall switch SW1 is turned off, the 3-wire detection circuit 11
Turns off the wall switch SW1 to detect the inverter circuit I
The discharge lamp La1 is turned off by, for example, stopping the oscillation of NV1, and the rectifier DB1 and DC / D are connected from the AC power supply Vac.
Rechargeable battery V via C converter 21 and charging circuit 31
Charge 1. In an emergency, since the AC power supply Vac is cut off, the supply of the power supply voltage from the AC power supply Vac to the inverter circuit INV1 is cut off, and the secondary battery V1 serves as the power supply for the inverter circuit INV to oscillate the inverter circuit INV1. The discharge lamp La is lit at high frequency in an emergency.
【００１０】[0010]
【発明が解決しようとする課題】しかし、上記従来例に
おいては、ヒューズＦ１を３線検出回路１１の一端及び
交流電源Ｖａｃの一端の接点よりも交流電源Ｖａｃ側に
設けているので、平常時且つ壁スイッチＳＷ１のオフ時
にヒューズＦ１が断線しても、図４に示す矢印の様に、
交流電源Ｖａｃ→ヒューズＦ２→３線検出回路１２→３
線検出回路１１→整流器ＤＢ１→交流電源Ｖａｃの経路
により３線検出回路１１に電流が流れ、３線検出回路１
１では壁スイッチＳＷ１がオンしている様な検知をして
しまい、ヒューズＦ１の断線により交流電源Ｖａｃから
の電源電圧の供給が遮断されているにもかかわらず、上
述の様に制御部６１を介してインバータ回路ＩＮＶ１を
発振動作させて放電灯Ｌａ１を点灯させてしまう、とい
う廻り込み現象の問題点が生じてしまう。However, in the above-mentioned conventional example, since the fuse F1 is provided closer to the AC power supply Vac than the contacts of one end of the three-wire detection circuit 11 and one end of the AC power supply Vac, it is normal and Even if the fuse F1 is disconnected when the wall switch SW1 is turned off, as shown by the arrow in FIG.
AC power supply Vac → Fuse F2 → 3-wire detection circuit 12 → 3
Current flows through the 3-wire detection circuit 11 through the path of the wire detection circuit 11 → rectifier DB1 → AC power supply Vac.
1 detects that the wall switch SW1 is on, and the supply of the power supply voltage from the AC power supply Vac is cut off due to the disconnection of the fuse F1. Therefore, the inverter circuit INV1 is oscillated and the discharge lamp La1 is turned on, causing a problem of the wraparound phenomenon.
【００１１】本発明は上記問題点に鑑みてなされたもの
で、その目的とするところは、３線式を有し、廻り込み
現象による誤動作を防止可能な照明装置を提供すること
である。The present invention has been made in view of the above problems, and an object of the present invention is to provide a lighting device having a three-wire system and capable of preventing malfunction due to a wraparound phenomenon.
【００１２】[0012]
【課題を解決するための手段】上記問題点を解決するた
めに、請求項１記載の発明によれば、交流電源の通電時
には交流電源により常に充電される二次電池と、交流電
源の通電時には交流電源を電源電圧供給源とし、交流電
源の遮断時には二次電池を電源電圧供給源として照明負
荷に高周波電圧を供給するインバータ回路と、交流電源
の通電時での、交流電源からインバータ回路への電源電
圧供給をオンオフするスイッチと、スイッチのオンオフ
を検出して照明負荷を点滅する方向へインバータ回路を
出力を制御する３線検出回路と、交流電源及び３線検出
回路の入力端の接点よりもインバータ回路側に設けられ
ると共に、異常時に交流電源と照明負荷との接続を遮断
する第１のヒューズとを備えることを特徴とする。In order to solve the above problems, according to the invention of claim 1, a secondary battery which is always charged by the AC power supply when the AC power supply is energized, and a secondary battery when the AC power supply is energized. An AC power supply is used as a power supply voltage source, and an inverter circuit that supplies a high frequency voltage to the lighting load when the AC power supply is cut off and a secondary battery is used as a power supply voltage supply source. A switch that turns on and off the power supply voltage, a three-wire detection circuit that detects the on-off state of the switch and controls the output of the inverter circuit in the direction that blinks the lighting load, and a contact at the input end of the AC power supply and the three-wire detection circuit. It is characterized by including a first fuse provided on the inverter circuit side and for disconnecting the connection between the AC power supply and the lighting load in the event of an abnormality.
【００１３】請求項２記載の発明によれば、接点と３線
検出回路の入力端との間に第２のヒューズを設け、異常
時に交流電源と３線検出回路との接続を遮断することを
特徴とする。According to the second aspect of the present invention, a second fuse is provided between the contact and the input end of the three-wire detection circuit to interrupt the connection between the AC power supply and the three-wire detection circuit in the event of an abnormality. Characterize.
【００１４】請求項３記載の発明によれば、照明負荷の
非常点灯を点検する点検スイッチを、インバータ回路の
入力側に設けたことを特徴とする。According to the third aspect of the invention, an inspection switch for inspecting the emergency lighting of the lighting load is provided on the input side of the inverter circuit.
【００１５】請求項４記載の発明によれば、第１のヒュ
ーズと点検スイッチとを直列接続することを特徴とす
る。According to a fourth aspect of the invention, the first fuse and the inspection switch are connected in series.
【００１６】請求項５記載の発明によれば、第１のヒュ
ーズと点検スイッチとを一体形成することを特徴とす
る。According to a fifth aspect of the present invention, the first fuse and the inspection switch are integrally formed.
【００１７】請求項６記載の発明によれば、照明負荷は
放電灯であることを特徴とする。According to a sixth aspect of the invention, the illumination load is a discharge lamp.
【００１８】[0018]
（実施の形態１）本発明に係る第１の実施の形態に係る
回路図を図１に示す。(Embodiment 1) FIG. 1 shows a circuit diagram according to a first embodiment of the present invention.
【００１９】図５に示す従来例と異なる点は、ヒューズ
Ｆ１の代わりに、交流電源Ｖａｃ及び３線検出回路１１
の入力端の接点ｂ点と整流器ＤＢ１の入力端との間に第
１ヒューズ（以下、ヒューズと呼ぶ。）Ｆ１１を新たに
設けて、異常時に交流電源Ｖａｃと点灯装置Ａ１とを遮
断することにより、点灯装置Ａ１を保護する様に構成し
たことであり、その他の従来例と同一構成には同一符号
を付すことにより説明を省略する。なお、点灯装置Ａ２
〜Ａｎも点灯装置Ａ１と同様の構成を有しているので説
明は省略する。The difference from the conventional example shown in FIG. 5 is that instead of the fuse F1, an AC power supply Vac and a three-wire detection circuit 11 are used.
By newly providing a first fuse (hereinafter, referred to as a fuse) F11 between the contact point b at the input end of the rectifier DB1 and the input end of the rectifier DB1, the AC power supply Vac and the lighting device A1 are cut off in the event of an abnormality. The lighting device A1 is configured to be protected, and the same configurations as those of the other conventional examples are denoted by the same reference numerals and the description thereof will be omitted. The lighting device A2
Since ~ An also has the same configuration as the lighting device A1, the description thereof is omitted.
【００２０】（実施の形態２）本発明に係る第２の実施
の形態の回路図を図２に示す。(Second Embodiment) FIG. 2 shows a circuit diagram of a second embodiment according to the present invention.
【００２１】図１に示した第１の実施の形態と異なる点
は、ｂ点と３線検出回路１１の入力端との間に第２ヒュ
ーズＦ２１（以下、ヒューズと呼ぶ。）を新たに設け
て、異常時に交流電源Ｖａｃと３線検出回路１１とを遮
断することにより、３線検出回路１１を保護する様に構
成したことであり、その他の第１の実施の形態と同一構
成には同一符号を付すことにより説明を省略する。な
お、点灯装置Ａ２〜Ａｎも点灯装置Ａ１と同様の構成を
有しているので説明は省略する。The difference from the first embodiment shown in FIG. 1 is that a second fuse F21 (hereinafter referred to as a fuse) is newly provided between the point b and the input end of the 3-wire detection circuit 11. Thus, the three-wire detection circuit 11 is protected by shutting off the AC power supply Vac and the three-wire detection circuit 11 at the time of abnormality, and the same structure as the other first embodiment is the same. The description is omitted by attaching the reference numerals. Since the lighting devices A2 to An also have the same configuration as the lighting device A1, the description thereof will be omitted.
【００２２】（実施の形態３）本発明に係る第３の実施
の形態の回路図を図３に示す。(Embodiment 3) FIG. 3 shows a circuit diagram of a third embodiment according to the present invention.
【００２３】図１に示した第１の実施の形態と異なる点
は、整流器ＤＢ１の出力端とＤＣ／ＤＣコンバータ２１
の入力端との間に、ヒューズＦ１１と放電灯Ｌａ１の非
常点灯点検の為の点検スイッチＳＷ２１との直列回路を
設けたことであり、その他の第１の実施の形態と同一構
成には同一符号を付すことにより説明を省略する。な
お、ヒューズＦ１１と点検スイッチＳＷ２１とを一体形
成してもよく、一体形成することにより装置の更なる小
型化が可能となる。また、点灯装置Ａ２〜Ａｎも点灯装
置Ａ１と同様の構成を有しているので説明は省略する。The difference from the first embodiment shown in FIG. 1 is that the output terminal of the rectifier DB1 and the DC / DC converter 21 are different.
A series circuit of a fuse F11 and an inspection switch SW21 for inspecting the emergency lighting of the discharge lamp La1 is provided between the input terminal and the input terminal of the same. The description is omitted by adding. The fuse F11 and the inspection switch SW21 may be integrally formed, and by integrally forming the fuse F11 and the inspection switch SW21, the size of the device can be further reduced. Further, since the lighting devices A2 to An also have the same configuration as the lighting device A1, the description thereof will be omitted.
【００２４】上記全ての実施の形態においては、ヒュー
ズＦ１１〜Ｆ１ｎを、交流電源Ｖａｃ及び３線検出回路
１１〜１ｎの入力端の接点ｂ点よりも負荷側に設けたの
で、ヒューズ断線時には確実に交流電源Ｖａｃからイン
バータ回路ＩＮＶ１〜ＩＮＶｎへの電圧供給を遮断で
き、壁スイッチＳＷ１オフ時の点灯装置Ａ１〜Ａｎの誤
動作を防止可能、つまり廻り込み現象による放電灯Ｌａ
１〜Ｌａｎの誤点灯を防止できる。なお、ヒューズＦ１
１〜Ｆ１ｎは、交流電源Ｖａｃ及び３線検出回路１１〜
１ｎの入力端の接点ｂ点よりも負荷側に設けたので、ヒ
ューズ断線時には確実に交流電源Ｖａｃからインバータ
回路ＩＮＶ１〜ＩＮＶｎへの電圧供給を遮断できる構成
であれば何でもよく、ＤＣ／ＤＣコンバータ２１〜２ｎ
は降圧コンバータでも昇圧コンバータでも何でもよく、
インバータ回路ＩＮＶ１〜ＩＮＶｎはどの様な構成を用
いてもよく、照明負荷としては放電灯を用いたが、他の
種類の光源を用いてもよい。In all the above-mentioned embodiments, the fuses F11 to F1n are provided on the load side with respect to the contact point b at the input ends of the AC power supply Vac and the three-wire detection circuits 11 to 1n, so that the fuses are surely disconnected. The voltage supply from the AC power supply Vac to the inverter circuits INV1 to INVn can be cut off, and the malfunction of the lighting devices A1 to An when the wall switch SW1 is off can be prevented, that is, the discharge lamp La due to the wraparound phenomenon.
It is possible to prevent erroneous lighting of 1 to Lan. Note that the fuse F1
1 to F1n are the AC power supply Vac and the 3-wire detection circuit 11 to 11.
Since it is provided on the load side from the contact point b at the input end of 1n, any structure may be used as long as it can reliably cut off the voltage supply from the AC power supply Vac to the inverter circuits INV1 to INVn when the fuse is blown. ~ 2n
Can be a buck converter or a boost converter,
The inverter circuits INV1 to INVn may have any configuration, and the discharge load is used as the illumination load, but other types of light sources may be used.
【００２５】[0025]
【発明の効果】請求項１記載の発明によれば、３線式を
有し、廻り込み現象による誤動作を防止可能であると共
に、異常時に交流電源と点灯装置とを遮断することによ
り点灯装置を保護することが可能な照明装置を提供でき
る。According to the first aspect of the invention, the lighting device has a three-wire system and can prevent a malfunction due to a sneak-in phenomenon, and at the same time, the lighting device can be operated by disconnecting the AC power supply and the lighting device at the time of an abnormality. A lighting device that can be protected can be provided.
【００２６】請求項２記載の発明によれば、３線式を有
し、廻り込み現象による誤動作を防止可能であると共
に、異常時に交流電源と３線検出回路とを遮断すること
により３線検出回路を保護することが可能な照明装置を
提供できる。According to the second aspect of the present invention, it has a three-wire system and can prevent malfunction due to a sneak-in phenomenon, and at the same time detect the three-wire by disconnecting the AC power supply and the three-wire detection circuit. A lighting device capable of protecting a circuit can be provided.
【００２７】請求項３及び請求項４に記載の発明によれ
ば、３線式を有し、廻り込み現象による誤動作を防止可
能であると共に、点検スイッチを操作することにより照
明負荷の非常点灯を確認することが可能な照明装置を提
供できる。According to the third and fourth aspects of the present invention, it has a three-wire system and can prevent malfunction due to a wraparound phenomenon, and also, by operating the inspection switch, emergency lighting of the lighting load can be performed. A lighting device that can be confirmed can be provided.
【００２８】請求項５記載の発明によれば、３線式を有
し、廻り込み現象による誤動作を防止可能であると共
に、点検スイッチを操作することにより照明負荷の非常
点灯を確認することが可能で、装置の更なる小型化が可
能な照明装置を提供できる。According to the invention of claim 5, it has a three-wire system and can prevent malfunction due to the wraparound phenomenon, and it is possible to confirm the emergency lighting of the lighting load by operating the inspection switch. Thus, it is possible to provide a lighting device that can be further downsized.
【００２９】請求項６記載の発明によれば、３線式を有
し、廻り込み現象による誤動作を防止可能な照明装置を
提供できる。According to the sixth aspect of the invention, it is possible to provide a lighting device having a three-wire system and capable of preventing a malfunction due to a wraparound phenomenon.
【図１】本発明に係る第１の実施の形態の回路図を示
す。FIG. 1 shows a circuit diagram of a first embodiment according to the present invention.
【図２】本発明に係る第２の実施の形態の回路図を示
す。FIG. 2 shows a circuit diagram of a second embodiment according to the present invention.
【図３】本発明に係る第３の実施の形態の回路図を示
す。FIG. 3 shows a circuit diagram of a third embodiment according to the present invention.
【図４】本発明に係る第１従来例の回路図を示す。FIG. 4 shows a circuit diagram of a first conventional example according to the present invention.
【図５】本発明に係る第２従来例の回路図を示す。FIG. 5 shows a circuit diagram of a second conventional example according to the present invention.
Ｆ ヒューズ ＩＮＶ インバータ回路 Ｌａ 照明負荷 Ｖａｃ 交流電源 Ｖ１ 二次電池 ＳＷ スイッチ １ｎ ３線検出回路 F Fuse INV Inverter circuit La Lighting load Vac AC power supply V1 Secondary battery SW switch 1n 3-wire detection circuit
Claims (6)
り常に充電される二次電池と、交流電源の通電時には前
記交流電源を電源電圧供給源とし、交流電源の遮断時に
は前記二次電池を電源電圧供給源として照明負荷に高周
波電圧を供給するインバータ回路と、前記交流電源の通
電時での、前記交流電源から前記インバータ回路への電
源電圧供給をオンオフするスイッチと、前記スイッチの
オンオフを検出して前記照明負荷を点滅する方向へ前記
インバータ回路を出力を制御する３線検出回路と、異常
時に前記交流電源と前記照明負荷との接続を遮断する第
１のヒューズとを備える照明装置において、 前記第１のヒューズは、前記交流電源及び前記３線検出
回路の入力端の接点よりも前記インバータ回路側に設け
られることを特徴とする照明装置。1. A secondary battery that is constantly charged by the AC power supply when the AC power supply is energized, and the AC power supply is a power supply voltage supply source when the AC power supply is energized, and the secondary battery is the power supply voltage when the AC power supply is shut off. An inverter circuit that supplies a high-frequency voltage to a lighting load as a supply source, a switch that turns on and off a power supply voltage from the AC power source to the inverter circuit when the AC power source is energized, and an on / off state of the switch is detected. A three-wire detection circuit that controls the output of the inverter circuit in a direction of blinking the lighting load, and a first fuse that disconnects the connection between the AC power supply and the lighting load when an abnormality occurs, The fuse of No. 1 is provided closer to the inverter circuit than the contacts of the AC power supply and the input end of the three-wire detection circuit. Location.
の間に、異常時に前記交流電源と前記３線検出回路との
接続を遮断する第２のヒューズを設けたことを特徴とす
る請求項１記載の照明装置。2. A second fuse is provided between the contact and the input end of the three-wire detection circuit to cut off the connection between the AC power supply and the three-wire detection circuit when an abnormality occurs. The lighting device according to claim 1.
明負荷の非常点灯を点検する点検スイッチを設けたこと
を特徴とする請求項１または請求項２記載の照明装置。3. The illumination device according to claim 1, wherein an inspection switch for inspecting the emergency lighting of the lighting load is provided on the input side of the inverter circuit.
ズに直列接続されるものであることを特徴とする請求項
３記載の照明装置。4. The lighting device according to claim 3, wherein the inspection switch is connected in series to the first fuse.
ズと一体形成されるものであることを特徴とする請求項
４記載の照明装置。5. The illumination device according to claim 4, wherein the inspection switch is integrally formed with the first fuse.
とする請求項１から請求項５のいずれかに記載の照明装
置。6. The lighting device according to claim 1, wherein the lighting load is a discharge lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10059096A JP3728796B2 (en) | 1996-04-23 | 1996-04-23 | Lighting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10059096A JP3728796B2 (en) | 1996-04-23 | 1996-04-23 | Lighting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09289092A true JPH09289092A (en) | 1997-11-04 |
| JP3728796B2 JP3728796B2 (en) | 2005-12-21 |
Family
ID=14278099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10059096A Expired - Fee Related JP3728796B2 (en) | 1996-04-23 | 1996-04-23 | Lighting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3728796B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009163962A (en) * | 2007-12-28 | 2009-07-23 | Panasonic Electric Works Co Ltd | Emergency lighting system |
| JP2011000976A (en) * | 2009-06-19 | 2011-01-06 | Hitachi Ltd | Rupture detector to be attached to train detection device for three-wire track circuit using digital telegram |
| JP2013535071A (en) * | 2010-05-06 | 2013-09-09 | ネクステック パワー システムズ インコーポレイテッド | High-efficiency DC ballast arrangement for automatic polarity protection and emergency backup of lighting equipment in a DC-driven suspended ceiling system |
-
1996
- 1996-04-23 JP JP10059096A patent/JP3728796B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009163962A (en) * | 2007-12-28 | 2009-07-23 | Panasonic Electric Works Co Ltd | Emergency lighting system |
| JP2011000976A (en) * | 2009-06-19 | 2011-01-06 | Hitachi Ltd | Rupture detector to be attached to train detection device for three-wire track circuit using digital telegram |
| JP2013535071A (en) * | 2010-05-06 | 2013-09-09 | ネクステック パワー システムズ インコーポレイテッド | High-efficiency DC ballast arrangement for automatic polarity protection and emergency backup of lighting equipment in a DC-driven suspended ceiling system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3728796B2 (en) | 2005-12-21 |
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