JPH0148640B2 - - Google Patents
Info
- Publication number
- JPH0148640B2 JPH0148640B2 JP15868383A JP15868383A JPH0148640B2 JP H0148640 B2 JPH0148640 B2 JP H0148640B2 JP 15868383 A JP15868383 A JP 15868383A JP 15868383 A JP15868383 A JP 15868383A JP H0148640 B2 JPH0148640 B2 JP H0148640B2
- Authority
- JP
- Japan
- Prior art keywords
- commercial
- fluorescent lamp
- relay
- power failure
- failure detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 28
- 230000001934 delay Effects 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 description 7
- 244000145845 chattering Species 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Description
【発明の詳細な説明】
〔技術分野〕
この発明は非常用照明装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] This invention relates to an emergency lighting device.
従来の非常用照明装置は、第１図に示すよう
に、商用電源１の正常時は停電検出リレー２のリ
レー接点２ａ，２ｂ，２ｃがNO側に切換わるこ
とにより、商用電源１よりリーケージトランス３
およびコンデンサ４，５よりなる商用安定器６を
介して蛍光ランプ７に給電して蛍光ランプ７を商
用点灯（常用点灯）させ、蓄電池８とトランジス
タインバータ９とを切離し、かつトランジスタイ
ンバータ９と蛍光ランプ７とを切離す。また、商
用電源１より降圧トランス１０、ダイオード１１
および充電抵抗１２よりなる充電回路１３を介し
て蓄電池８を充電する。
As shown in Fig. 1, in the conventional emergency lighting system, when the commercial power supply 1 is normal, the relay contacts 2a, 2b, 2c of the power failure detection relay 2 are switched to the NO side, so that the leakage transformer is removed from the commercial power supply 1. 3
Power is supplied to the fluorescent lamp 7 via a commercial ballast 6 consisting of capacitors 4 and 5 to turn on the fluorescent lamp 7 for commercial use (normal lighting), disconnect the storage battery 8 and transistor inverter 9, and disconnect the transistor inverter 9 and the fluorescent lamp. Separate from 7. In addition, a step-down transformer 10 and a diode 11 are connected to the commercial power supply 1.
The storage battery 8 is charged via a charging circuit 13 comprising a charging resistor 12.
商用電源１が停電すると、停電検出リレー２の
リレー接点２ａ，２ｂ，２ｃがNC側に切換わ
り、商用安定器６と蛍光ランプ７とが切離され、
トランジスタインバータ９と蛍光ランプ７とが接
続されるとともにトランジスタインバータ９と蓄
電池８とが接続され、トランジスタインバータ９
が発振を開始して蛍光ランプ７が高周波点灯（非
常点灯）する。なお、１４は点検スイツチであ
る。 When the commercial power supply 1 has a power outage, the relay contacts 2a, 2b, and 2c of the power outage detection relay 2 are switched to the NC side, and the commercial ballast 6 and the fluorescent lamp 7 are disconnected.
The transistor inverter 9 and the fluorescent lamp 7 are connected, and the transistor inverter 9 and the storage battery 8 are also connected.
starts oscillating, and the fluorescent lamp 7 lights up at high frequency (emergency lighting). Note that 14 is a check switch.
このような非常用照明装置において、商用電源
１の通電時より停電し蓄電池８よりトランジスタ
インバータ９が作動して非常点灯する瞬間を考え
る。例えば、停電検出リレー２のリレー接点２ａ
を見れば、そのNO側には、商用安定器６のリー
ケージトランス３のインダクタンスによる逆起電
圧およびコンデンサ４，５の残留電荷によつて電
圧V2が発生している。また、NC側には、トラン
ジスタインバータ９により高周波高電圧V1が発
生している。したがつて、リレー接点２ａのNO
−NC間には電圧V1と電圧V2とが重畳されたサー
ジ電圧が印加される。このとき、リレー接点２
ａ，２ｂ，２ｃは各々チヤタリングおよびバウン
ス状態を呈する。このときのリレー接点２ａの
COM−NO間、COM−NC間およびNO−NC間
の電圧の状態を第２図Ａ，Ｂ，Ｃにそれぞれ示
す。第２図において、T1はCOM−NO間が接続
されている期間、T2はリレー接点２ａがチヤタ
リング、バウンスを起こしている期間、T3は
COM−NC間が接続されている期間で、期間T1
におけるCOM−NC間およびNO−NC間の電圧
VA1，VA2は商用点灯時のランプ電圧、期間T2に
おけるCOM−NO間、COM−NC間およびNO−
NC間の電圧VB1，VB2，VB3はチヤタリング、バ
ウンスによるサージ電圧、期間T3におけるCOM
−NO間およびNO−NC間の電圧VC1，VC2は高周
波点灯時のランプ電圧である。 In such an emergency lighting device, consider the moment when the commercial power supply 1 is energized and a power outage occurs and the storage battery 8 activates the transistor inverter 9 to turn on the emergency lighting. For example, relay contact 2a of power failure detection relay 2
Looking at the NO side, a voltage V 2 is generated on the NO side due to the back electromotive force caused by the inductance of the leakage transformer 3 of the commercial ballast 6 and the residual charges in the capacitors 4 and 5. Further, on the NC side, a high frequency high voltage V1 is generated by a transistor inverter 9. Therefore, NO of relay contact 2a
A surge voltage in which voltage V 1 and voltage V 2 are superimposed is applied between -NC. At this time, relay contact 2
a, 2b, and 2c each exhibit a chattering and bouncing state. At this time, relay contact 2a
The voltage states between COM and NO, between COM and NC, and between NO and NC are shown in FIGS. 2A, B, and C, respectively. In Figure 2, T1 is the period when COM-NO is connected, T2 is the period when the relay contact 2a is chattering and bouncing, and T3 is the period when the relay contact 2a is chattering and bouncing.
The period during which COM and NC are connected, period T 1
Voltage between COM and NC and between NO and NC at
V A1 and V A2 are the lamp voltages during commercial lighting, between COM and NO, between COM and NC, and between NO- during period T2 .
Voltages between NCs V B1 , V B2 , V B3 are surge voltages due to chatter and bounce, and COM during period T 3
The voltages V C1 and V C2 between -NO and between NO and NC are lamp voltages during high frequency lighting.
期間T2において、リレー接点２ａがCOM接点
を通してNO−NC間で橋絡すれば、トランジス
タインバータ９より高周波電圧が供給され、かつ
商用安定器６のコンデンサ５に電流が流れること
により、リレー接点２ａのCOM−NO間が溶着
するという問題があつた。 During period T2 , if the relay contact 2a bridges between NO and NC through the COM contact, high frequency voltage is supplied from the transistor inverter 9, and current flows through the capacitor 5 of the commercial stabilizer 6, so that the relay contact 2a There was a problem with welding between COM and NO.
この発明は、常用点灯から非常点灯への切替時
における停電検出リレーのリレー接点の高周波電
力による溶着事故を防止し、かつリレー接点数を
少くして停電検出リレーを安価でかつ小形化し、
さらに切替性能の信頼性を向上させることができ
る非常用照明装置を提供することを目的とする。
This invention prevents welding accidents of the relay contacts of a power failure detection relay due to high frequency power when switching from normal lighting to emergency lighting, and reduces the number of relay contacts to make the power failure detection relay inexpensive and compact.
Furthermore, it is an object of the present invention to provide an emergency lighting device that can improve the reliability of switching performance.
この発明の非常用照明装置は、商用電源に接続
されて蛍光ランプを商用点灯させる商用安定器
と、前記商用電源に接続されて蓄電池を充電する
充電回路と、前記蓄電池より給電されて前記蛍光
ランプを高周波点灯させるトランジスタインバー
タと、前記商用電源の正常時に前記商用安定器と
前記蛍光ランプとを接続するとともに前記トラン
ジスタインバータと前記蛍光ランプを切離し、前
記商用電源の停電時に前記商用安定器と前記蛍光
ランプとを切離すとともに前記トランジスタイン
バータと前記蛍光ランプとを接続する接点式停電
検出リレーと、前記商用電源の停電を検出して前
記蓄電池と前記トランジスタインバータとを接続
する停電検出回路と、この停電検出回路の停電検
出動作を前記接点式停電検出リレーのチヤタリン
グおよびバウンス時間以上遅らせる遅延回路とを
備える構成である。
The emergency lighting device of the present invention includes: a commercial ballast connected to a commercial power source to turn on a fluorescent lamp for commercial use; a charging circuit connected to the commercial power source to charge a storage battery; and a charging circuit connected to the commercial power source to charge a storage battery; a transistor inverter that connects the commercial ballast and the fluorescent lamp when the commercial power source is normal, and disconnects the transistor inverter and the fluorescent lamp, and connects the commercial ballast and the fluorescent lamp when the commercial power source is out of order; a contact type power failure detection relay that disconnects the lamp and connects the transistor inverter and the fluorescent lamp; a power failure detection circuit that detects a power failure of the commercial power source and connects the storage battery and the transistor inverter; This configuration includes a delay circuit that delays the power failure detection operation of the detection circuit by more than the chattering and bounce time of the contact type power failure detection relay.
以下、この発明の一実施例を第３図および第４
図に基づいて説明する。この非常用照明装置は、
商用電源１の正常時は停電検出リレー２′のリレ
ー接点２ａ，２ｂがNO側に切換わることによ
り、商用電源１よりリーケージトランス３および
コンデンサ４，５よりなる商用安定器６を介して
蛍光ランプ７に給電して蛍光ランプ７を商用点灯
（常用点灯）させ、トランジスタインバータ９と
蛍光ランプ７とを切離す。また、商用電源１より
降圧トランス１０、ダイオード１１および充電抵
抗１２よりなる充電回路１３を介して蓄電池８を
充電する。さらに、降圧トランス１０の２次側か
らダイオード１５とコンデンサ１６、抵抗１７お
よびダイオード１８，１９よりなる遅延回路２０
とを通して停電検出用トランジスタ２１に逆バイ
アスが与えられているため、停電検出用トランジ
スタ２１がオフであつてトランジスタインバータ
９のベース入力が遮断され、トランジスタインバ
ータ９は発振を停止している。 An embodiment of the present invention will be described below with reference to FIGS. 3 and 4.
This will be explained based on the diagram. This emergency lighting device is
When the commercial power supply 1 is normal, the relay contacts 2a and 2b of the power failure detection relay 2' are switched to the NO side, and the fluorescent lamp is connected to the commercial power supply 1 via the commercial ballast 6 consisting of the leakage transformer 3 and capacitors 4 and 5. 7 to turn on the fluorescent lamp 7 for commercial use (normal lighting), and disconnect the transistor inverter 9 and the fluorescent lamp 7. Further, the storage battery 8 is charged from the commercial power source 1 via a charging circuit 13 consisting of a step-down transformer 10, a diode 11, and a charging resistor 12. Furthermore, a delay circuit 20 consisting of a diode 15, a capacitor 16, a resistor 17, and diodes 18 and 19 is connected from the secondary side of the step-down transformer 10.
Since a reverse bias is applied to the power failure detection transistor 21 through the power failure detection transistor 21, the power failure detection transistor 21 is off, the base input of the transistor inverter 9 is cut off, and the transistor inverter 9 stops oscillating.
商用電源１が停電すると、停電検出リレー２′
のリレー接点２ａ，２ｂがNC側に切換わり、商
用安定器６と蛍光ランプ７とが切離され、トラン
ジスタインバータ９と蛍光ランプ７とが接続され
る。ところが、停電検出用トランジスタ２１につ
いては、遅延回路２０のために商用電源１の停電
後徐々に逆バイアスが減少していき、商用電源１
の停電より一定時間（停電検出リレー２′がチヤ
タリングおよびバウンスを生じている時間以上）
遅れてオンとなり、蓄電池８からトランジスタイ
ンバータ９にベース入力が加えられてトランジス
タインバータ９が発振を開始し、蛍光ランプ７が
高周波点灯する。 When commercial power supply 1 has a power outage, power outage detection relay 2'
The relay contacts 2a and 2b are switched to the NC side, the commercial ballast 6 and the fluorescent lamp 7 are disconnected, and the transistor inverter 9 and the fluorescent lamp 7 are connected. However, regarding the power failure detection transistor 21, the reverse bias gradually decreases after the power failure of the commercial power supply 1 due to the delay circuit 20.
A certain period of time after the power outage (longer than the time when the power outage detection relay 2' is chattering and bouncing)
It turns on after a delay, and the base input is applied from the storage battery 8 to the transistor inverter 9, the transistor inverter 9 starts oscillating, and the fluorescent lamp 7 lights up at high frequency.
なお、遅延回路２０の遅延時間は抵抗１７およ
びコンデンサ１６の時定数を変えることにより調
整する。 Note that the delay time of the delay circuit 20 is adjusted by changing the time constants of the resistor 17 and capacitor 16.
このように構成すれば、商用電源１の停電時に
おいて、停電検出リレー２′がチヤタリングおよ
びバウンスを生じている期間はトランジスタイン
バータ９が作動せず、停電検出リレー２′の切替
状態が安定したのち、トランジスタインバータ９
が発振を開始して蛍光ランプ７を高周波点灯させ
るため、常時から非常時への切替時におけるリレ
ー接点２ａ，２ｂの溶着事故を防止できる。この
理由はつぎのとおりである。 With this configuration, during a power outage of the commercial power supply 1, the transistor inverter 9 will not operate while the power outage detection relay 2' is chattering and bouncing, and after the switching state of the power outage detection relay 2' has stabilized, the transistor inverter 9 will not operate. , transistor inverter 9
starts oscillating and lights up the fluorescent lamp 7 at high frequency, so it is possible to prevent welding accidents of the relay contacts 2a and 2b when switching from normal to emergency. The reason for this is as follows.
(イ) リレー接点２ａ，２ｂのNO−NC間に商用
安定器６のリーケージトランス３のインダクタ
ンスによる逆起電圧およびコンデンサ４，５の
残留電荷による電圧V2とトランジスタインバ
ータ９より供給される高周波電圧V1とが重畳
して印加されることがない。(a) Voltage V 2 due to the back electromotive force due to the inductance of the leakage transformer 3 of the commercial ballast 6 and the residual charge of the capacitors 4 and 5 and the high frequency voltage supplied from the transistor inverter 9 between NO and NC of the relay contacts 2a and 2b. V 1 is not applied in a superimposed manner.
(ロ) 蛍光ランプ７が商用安定器６に接続された状
態からトランジスタインバータ９に接続される
状態へ切替わるタイミングより蓄電池８とトラ
ンジスタインバータ９とを接続するタイミング
を遅らせているため、リレー接点２ａ，２ｂに
チヤタリング、バウンスが生じてもサージ電圧
が生じない。(b) Since the timing of connecting the storage battery 8 and the transistor inverter 9 is delayed from the timing of switching from the state where the fluorescent lamp 7 is connected to the commercial ballast 6 to the state where it is connected to the transistor inverter 9, the relay contact 2a , 2b, no surge voltage occurs even if chattering or bounce occurs.
また、一般に電池内蔵型の非常用照明器具では
直流側の切替部は低圧、大電流の使用条件である
ため、長期の高温放置ではリレー接点の信頼性が
問題となり、その対策として高価な金めつきや金
クラツド接点を使用している。その結果、金接点
は融点が低いため、耐アーク性能が低く、溶着事
故を起こしやすい原因となつていた。これに対
し、実施例のものでは耐アーク性能に着目した接
点材料でよく、使用電圧も高電圧であり、使用リ
レーは従来に比べ接点数も少くてよく、かつ安価
で小形のものでよくなる。 In general, emergency lighting equipment with a built-in battery requires low voltage and high current for the switching section on the DC side, so if left at high temperatures for long periods of time, the reliability of the relay contacts becomes a problem, and as a countermeasure, expensive gold plated It uses solid and gold-clad contacts. As a result, since gold contacts have a low melting point, they have poor arc resistance and are prone to welding accidents. On the other hand, in the example, a contact material that focuses on arc resistance performance is sufficient, the voltage used is high, the number of contacts of the relay used is smaller than that of the conventional relay, and the relay can be inexpensive and small.
なお、実施例では、停電検出リレー２′は商用
電源１に接続する交流リレーであつたが、整流後
の直流電圧で作動させる直流リレーでもよい。ま
た、停電検出リレー２′は降圧トランス１０の１
次側に設けたが、２次側であつてもよい。 In the embodiment, the power failure detection relay 2' is an AC relay connected to the commercial power source 1, but it may be a DC relay operated by rectified DC voltage. In addition, the power failure detection relay 2' is connected to the step-down transformer 10.
Although it is provided on the next side, it may be provided on the secondary side.
この発明の非常用照明装置によれば、常用点灯
から非常点灯への切替時における停電検出リレー
のリレー接点の溶着事故を防止でき、しかも停電
検出リレーのリレー接点数を少くして安価でかつ
小形化し、切替性能の信頼性を向上させることが
できる。
According to the emergency lighting device of the present invention, it is possible to prevent welding accidents of the relay contacts of the power failure detection relay when switching from normal lighting to emergency lighting, and the number of relay contacts of the power failure detection relay is reduced, making it inexpensive and compact. The reliability of switching performance can be improved.
第１図は従来の非常用照明装置の回路図、第２
図はリレー接点の各端子間電圧の波形図、第３図
はこの発明の一実施例のブロツク図、第４図はそ
の具体回路図である。
１……商用電源、２′……停電検出リレー、２
ａ，２ｂ……リレー接点、６……商用安定器、７
……蛍光ランプ、８……蓄電池、９……トランジ
スタインバータ、１３……充電回路、２０……遅
延回路、２１……停電検出用トランジスタ。
Figure 1 is a circuit diagram of a conventional emergency lighting system, Figure 2 is a circuit diagram of a conventional emergency lighting system.
The figure is a waveform diagram of the voltage between each terminal of the relay contact, FIG. 3 is a block diagram of an embodiment of the present invention, and FIG. 4 is a specific circuit diagram thereof. 1...Commercial power supply, 2'...Power failure detection relay, 2
a, 2b...Relay contact, 6...Commercial ballast, 7
... Fluorescent lamp, 8 ... Storage battery, 9 ... Transistor inverter, 13 ... Charging circuit, 20 ... Delay circuit, 21 ... Transistor for power failure detection.
Claims (1)
させる商用安定器と、前記商用電源に接続されて
蓄電池を充電する充電回路と、前記蓄電池より給
電されて前記蛍光ランプを高周波点灯させるトラ
ンジスタインバータと、前記商用電源の正常時に
前記商用安定器と前記蛍光ランプとを接続すると
ともに前記トランジスタインバータと前記蛍光ラ
ンプを切離し、前記商用電源の停電時に前記商用
安定器と前記蛍光ランプとを切離すとともに前記
トランジスタインバータと前記蛍光ランプとを接
続する接点式停電検出リレーと、前記商用電源の
停電を検出して前記蓄電池と前記トランジスタイ
ンバータとを接続する停電検出回路と、この停電
検出回路の停電検出動作を前記接点式停電検出リ
レーのチヤタリングおよびバウンス時間以上遅ら
せる遅延回路とを備えた非常用照明装置。1: a commercial ballast connected to a commercial power source to turn on the fluorescent lamp for commercial use; a charging circuit connected to the commercial power source to charge a storage battery; and a transistor inverter supplied with power from the storage battery to turn on the fluorescent lamp at high frequency; When the commercial power supply is normal, the commercial ballast and the fluorescent lamp are connected and the transistor inverter and the fluorescent lamp are disconnected, and when the commercial power supply is out of power, the commercial ballast and the fluorescent lamp are disconnected and the transistor a contact type power failure detection relay that connects the inverter and the fluorescent lamp; a power failure detection circuit that detects a power failure of the commercial power source and connects the storage battery and the transistor inverter; An emergency lighting device equipped with a delay circuit that delays the chatter and bounce time of a contact type power failure detection relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15868383A JPS6050894A (en) | 1983-08-30 | 1983-08-30 | Emergency illuminator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15868383A JPS6050894A (en) | 1983-08-30 | 1983-08-30 | Emergency illuminator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6050894A JPS6050894A (en) | 1985-03-20 |
| JPH0148640B2 true JPH0148640B2 (en) | 1989-10-19 |
Family
ID=15677073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15868383A Granted JPS6050894A (en) | 1983-08-30 | 1983-08-30 | Emergency illuminator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6050894A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100409085C (en) * | 2004-02-25 | 2008-08-06 | 乐金显示有限公司 | Liquid crystal display device and method of fabricating the same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6076897U (en) * | 1983-10-31 | 1985-05-29 | 明治ナシヨナル工業株式会社 | discharge lamp lighting device |
| JPH0511644Y2 (en) * | 1987-09-21 | 1993-03-23 |
-
1983
- 1983-08-30 JP JP15868383A patent/JPS6050894A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100409085C (en) * | 2004-02-25 | 2008-08-06 | 乐金显示有限公司 | Liquid crystal display device and method of fabricating the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6050894A (en) | 1985-03-20 |
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