JPH09226582A - Multiple light type color light system signal - Google Patents
Multiple light type color light system signalInfo
- Publication number
- JPH09226582A JPH09226582A JP8042979A JP4297996A JPH09226582A JP H09226582 A JPH09226582 A JP H09226582A JP 8042979 A JP8042979 A JP 8042979A JP 4297996 A JP4297996 A JP 4297996A JP H09226582 A JPH09226582 A JP H09226582A
- Authority
- JP
- Japan
- Prior art keywords
- light
- light emitting
- yellow
- electric circuit
- power
- 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
- 238000009413 insulation Methods 0.000 claims description 4
- 239000003086 colorant Substances 0.000 abstract description 4
- 230000001131 transforming effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 9
- 239000000758 substrate Substances 0.000 description 7
- 230000000750 progressive effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- DGOBMKYRQHEFGQ-UHFFFAOYSA-L acid green 5 Chemical compound [Na+].[Na+].C=1C=C(C(=C2C=CC(C=C2)=[N+](CC)CC=2C=C(C=CC=2)S([O-])(=O)=O)C=2C=CC(=CC=2)S([O-])(=O)=O)C=CC=1N(CC)CC1=CC=CC(S([O-])(=O)=O)=C1 DGOBMKYRQHEFGQ-UHFFFAOYSA-L 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/12—Visible signals
- B61L5/18—Light signals; Mechanisms associated therewith, e.g. blinders
- B61L5/1809—Daylight signals
- B61L5/1881—Wiring diagrams for power supply, control or testing
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L2207/00—Features of light signals
- B61L2207/02—Features of light signals using light-emitting diodes [LEDs]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Traffic Control Systems (AREA)
Abstract
Description
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】本発明は、鉄道信号機、特に電気
三位式多灯形色灯式信号機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railway traffic light, and more particularly to an electric three-position multi-light type color light traffic light.
【０００２】[0002]
【従来の技術】色灯式信号機は、昼夜を通して灯の色に
よって信号を現示する方式の信号機であり、自動の信号
区間に用いられる。多灯形には、３現示，４現示，５現
示のものがあるが、いずれも単一の灯器の組合せを垂直
に並べたものである。2. Description of the Related Art A colored light type traffic light is a traffic light of a type that presents a signal according to the color of a light throughout the day and night, and is used in an automatic signal section. The multi-lamp type includes three-view, four-view, and five-view, all of which are combinations of single lamps arranged vertically.
【０００３】灯器は、３０Ｖ，４５Ｗの複繊条電球を取
付けるソケットと、２枚のレンズの組合せを有し、レン
ズの焦点に電球のフィラメントが固定されるように関係
位置が設定されている。レンズには、図９に示すように
段付レンズが用いられ、外側は無色内面段付レンズ２
１、内側は、着色（赤，黄（正確には橙黄），緑）の外
面段付レンズ２２である。段付レンズは、軽量で合成焦
点距離が小さく、電球２３から出る光束を多く利用でき
る。The lamp has a socket for mounting a double-strand bulb of 30 V and 45 W and a combination of two lenses, and the relative position is set so that the filament of the bulb is fixed at the focal point of the lens. . As the lens, a stepped lens is used as shown in FIG. 9, and the outer side is a colorless inner stepped lens 2
1. Inside is a colored (red, yellow (correctly orange yellow), green) outer stepped lens 22. The stepped lens is lightweight, has a small combined focal length, and can utilize a large amount of light flux emitted from the light bulb 23.
【０００４】信号電球は、多灯形信号機に３０Ｖ，４５
Ｗ（Ｇ型）のものが用いられ、焦点を合わせるためにレ
ンズとフィラメントとの相互距離を厳重に規定してい
る。The signal bulb is a multi-lamp type traffic light with 30V, 45
The W (G type) one is used, and the mutual distance between the lens and the filament is strictly regulated for focusing.
【０００５】信号電球は、定格電圧の８０〜９０％の電
圧で使用して、５０００時間位まで寿命を延ばしている
が、電圧１Ｖの低下で光力は、１２％少なくなる。この
ため、信号電球を使用期間を２年を超えないように使用
限定を定め、さらに重要な停止信号灯の使用限度は、７
ケ月としている。Although the signal light bulb is used at a voltage of 80 to 90% of the rated voltage and the life is extended to about 5000 hours, the light power is reduced by 12% when the voltage is lowered by 1V. For this reason, the usage limit of the signal light bulb is set so that the usage period does not exceed 2 years, and the more important limit of the usage of the stop signal light is 7
It's been a month.
【０００６】電球は、使用前に定格電圧で２４時間試験
点灯し、取替えるときはまず、停止灯に新品を使用し、
停止灯に使用された電球を進行灯に、進行灯の電球を注
意灯に使用する順序で順送りに使用される。Before use, the light bulb is lit for 24 hours at the rated voltage, and when it is replaced, a new stop light is used.
The light bulbs used for the stop lights are used as progressive lights, and the light bulbs for the progress lights are used for progressive light in the order of use.
【０００７】一方、警戒又は、減速信号を現示するため
に付加した灯は２０００時間までを使用限定とし、この
灯は移動しない。他の灯は、警戒信号を現示する信号機
は最初新品を黄灯（注意灯）に、次に赤灯（停止灯），
緑灯（進行灯）の順序とし、減速信号の場合は、最初進
行灯に取付け、以後、停止，注意灯へ移動し、警戒及び
減速信号を現示するものは、停止灯から注意灯，進行灯
の順序に使用するのが通例である（株式会社交友社，信
号，昭和４１年，第８５〜８９頁参照）。On the other hand, the light added to show a warning or deceleration signal is limited to use for up to 2000 hours, and this light does not move. For other lights, the traffic lights that show the warning signal are first a new light (yellow light), then a red light (stop light),
In the order of green lights (progressive lights), if there is a deceleration signal, first attach it to the progressing lights, then move to the stop and caution lights. It is customarily used for the order of lights (see Koyusha Co., Ltd., Signal, 1941, pp. 85-89).
【０００８】このように、信号電球を用いる限りにおい
ては、寿命が比較的早い時期に尽きることから、その管
理に厄介な手数が必要である。しかも、長いトンネルや
橋梁の信号機の電球取替の作業は大変危険でもある。As described above, as long as the signal light bulb is used, the service life of the signal light bulb is exhausted at a relatively early time, so that it is troublesome to manage it. Moreover, it is very dangerous to replace a light bulb for a traffic light in a long tunnel or bridge.
【０００９】この問題を解消するために発光ダイオード
（以下ＬＥＤという）を信号機の発光源に使用したいと
いう要望が早い時期からあったが、青緑色発光のＬＥＤ
は、弱体（低光度）のため、ＬＥＤの使用を黄灯，赤灯
に限り、緑灯には従来の信号電球を用いざるを得なかっ
た。There has been an early demand for using a light emitting diode (hereinafter referred to as an LED) as a light source of a traffic light in order to solve this problem.
Because of its weakness (low luminosity), the use of LEDs was limited to yellow and red lights, and the conventional signal bulb had to be used for green lights.
【００１０】ところが、最近になって高輝度な青緑色発
光のＬＥＤが開発され、黄，赤，青緑色発光の３灯にＬ
ＥＤの使用が可能となった。Recently, however, a high-intensity blue-green LED has been developed, and three LEDs of yellow, red, and blue-green light are L
The ED can now be used.
【００１１】[0011]
【発明が解決しようとする課題】色灯式信号機の赤色，
黄色，緑色の色調は、ＪＩＳＥ−３３０３に規定されて
いて勝手な色調を使うことは許されない。また、運輸省
の規定には信号機の光度（カンデラ数）規定はないが、
従来のＪＲＳでは「日光の明るいところで０．８倍の電
圧で６００ｍ見えること」となっている。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
As for yellow and green tones, it is not allowed to use arbitrary tones defined in JIS-3303. In addition, the Ministry of Transport does not have a luminosity (candela number) regulation for traffic signals,
According to the conventional JRS, "it is possible to see 600 m at 0.8 times the voltage in bright sunlight".
【００１２】ＬＥＤは、使用経年により、次第に光度が
低下し、光度が１／２になったときを寿命としており、
約３万時間経過後、これを取替えることになる。したが
って、新品のときには規定の明るさの２倍の光度を有し
ていなければならない。The light intensity of the LED gradually decreases with the lapse of use, and the life is defined when the light intensity becomes 1/2.
It will be replaced after about 30,000 hours. Therefore, when it is new, it must have a luminous intensity twice as much as the specified brightness.
【００１３】一方、光の届き方は、色によって異なり、
波長の短い緑色発光のＬＥＤの減衰が最も大きい。もっ
とも、４現示，５現示の信号機では、黄灯−緑灯（減衰
信号）では緑灯より黄灯の方が明るい方が安全側である
し、また、一般には三灯のうちの赤灯現示は最も明るい
ことが望ましい。On the other hand, how the light reaches depends on the color,
A green-emitting LED with a short wavelength has the largest attenuation. However, in the 4th and 5th traffic lights, the yellow light-green light (decay signal) is safer when the yellow light is brighter than the green light, and in general, the red light of the three lights It is desirable that the lighting is brightest.
【００１４】このように、各色のＬＥＤにはそれぞれの
特性があり、また、運用上の制約があって、単純に信号
電球をＬＥＤに置き替えればよいというものではない。As described above, each color LED has its own characteristics and there are operational restrictions, and it is not necessary to simply replace the signal light bulb with the LED.
【００１５】本発明の目的は、赤色，黄色，青緑色の発
光現示にＬＥＤを用い、各色をバランスよく発光させる
多灯形色灯式信号機を提供することにある。It is an object of the present invention to provide a multi-lamp type color light type traffic signal that uses LEDs for red, yellow and blue-green light emission indications to emit light in a balanced manner.
【００１６】[0016]
【課題を解決するための手段】上記目的を達成するた
め、本発明による多灯形色灯式信号機においては、赤
灯，黄灯，緑灯の灯器の発光源にそれぞれ赤，黄，青緑
色発光の発光ダイオードを用いた多灯形色灯式信号機で
あって、各灯に用いられた発光ダイオードの総数Ｎは同
じであり、灯器に分散して配置され、発光ダイオード
は、各灯器毎に電気回路に接続して発光ユニットを構成
し、電気回路は、抵抗器と、複数個の発光ダイオードと
が直列連結された結線を複数本並列連結して直流電源に
接続されたものであり、赤灯と黄灯との電気回路は、ｎ
1個の発光ダイオードを直列連結した結線をｍ1本並列連
結したもの、緑灯の電気回路は、ｎ2個の発光ダイオー
ドを直列連結した結線をｍ2本並列連結したもの、但
し、ｎ1＞ｎ2 ｍ1＜ｍ2 （ｎ1，ｎ2＝１，２，３…，Ｎ） （ｍ1，ｍ2＝１，２，…）であり、直流電源は、同一の
交流電源から供給された交流電圧を各電気回路毎に整流
して発光ダイオードに直流を給電するものであり、各灯
の電気回路のインピーダンスは同じである。In order to achieve the above object, in the multi-light type color light type traffic light according to the present invention, red, yellow and blue lights are respectively emitted to light sources of red, yellow and green lights. A multi-lamp type color light type traffic signal using green light emitting diodes, wherein the total number N of light emitting diodes used in each lamp is the same, and the light emitting diodes are distributed and arranged in each lamp. Each light emitting device is connected to an electric circuit to form a light emitting unit, and the electric circuit is composed of a resistor and a plurality of light emitting diodes connected in series and connected in parallel to a DC power source. Yes, the electric circuit of red light and yellow light is n
One light emitting diode connected in series is m 1 connected in parallel, the green light electrical circuit is n 2 light emitting diodes connected in series is m 2 connected in parallel, where n 1 > N 2 m 1 <m 2 (n 1 , n 2 = 1 , 2, 3 ..., N) (m 1 , m 2 = 1, 2, ...) And the DC power supplies are supplied from the same AC power supply. The generated alternating voltage is rectified for each electric circuit to supply direct current to the light emitting diode, and the impedance of the electric circuit of each lamp is the same.
【００１７】また、各灯の発光ユニットは２組の電気回
路を有し、各々の電気回路は、１電気回路毎に直流電源
に接続されたものである。The light emitting unit of each lamp has two sets of electric circuits, and each electric circuit is connected to a DC power source for each electric circuit.
【００１８】また、多灯形色灯式信号機は、４現示又は
５現示の信号機であり、同時に現示する黄灯の２灯又は
黄灯と緑灯との２灯の電気回路は直列に結線され、各電
気回路に接続された直流電源のうち、一方の直流電源
は、両電気回路に給電するものであり、両電気回路に通
電する直流電源の電圧は、他の電気回路に接続された直
流電源の電圧の２倍であって、２灯の電気回路のインピ
ーダンスを同一に整合するものである。Further, the multi-light type color light type traffic light is a traffic light of 4 or 5 lights, and an electric circuit of two lights of yellow light or two lights of yellow light and green light shown at the same time is connected in series. One of the DC power supplies connected to each of the electric circuits is connected to each of the electric circuits, and one of the DC power supplies supplies power to both of the electric circuits, and the voltage of the DC power supplied to both of the electric circuits is connected to the other electric circuit. It is twice the voltage of the generated DC power supply, and the impedances of the electric circuits of the two lamps are matched.
【００１９】また、直流電源は、絶縁トランスと整流器
とを含み、絶縁トランスは、交流電源を整流器に給電
し、且つ交流電源配線と、各電気回路との配線間を電気
的にしゃ断して発光ダイオードの誘導電圧による微弱点
灯を阻止するものであり、整流器は、交流電源電圧を整
流して各灯の電気回路に給電するものである。The DC power supply includes an insulating transformer and a rectifier. The insulating transformer supplies the AC power supply to the rectifier, and electrically cuts off the AC power supply wiring from each electric circuit to emit light. The rectifier serves to prevent weak lighting due to the induced voltage of the diode, and the rectifier rectifies the AC power supply voltage to supply power to the electric circuit of each lamp.
【００２０】また、同時に現示する黄灯の２灯又は黄灯
と緑灯との２灯の両電気回路の直流電源に設けられた絶
縁トランスは、１００Ｖの交流電源電圧を２００Ｖに昇
圧して各整流器に給電するものである。Further, the insulating transformer provided in the DC power source of both the two yellow lamps or the two yellow and green lamps shown simultaneously simultaneously boosts the AC power source voltage of 100V to 200V. It supplies power to each rectifier.
【００２１】[0021]
【発明の実施の形態】以下に本発明を図によって説明す
る。図１，図２において、正面が開放された円形中空の
ケース１内にＬＥＤ２を搭載した基板３を収納設置す
る。基板３上に搭載するＬＥＤ２の配列は、特に限定さ
れるものではないが、ケース１内の全体に分散させて同
心状又は縦横に均等に密に配列する。各ＬＥＤ２は、直
並列に結線して電源配線に結線されている。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to the drawings. In FIGS. 1 and 2, a substrate 3 having LEDs 2 mounted therein is housed in a circular hollow case 1 having an open front. The arrangement of the LEDs 2 mounted on the substrate 3 is not particularly limited, but the LEDs 2 are dispersed throughout the case 1 and arranged concentrically or evenly in the vertical and horizontal directions. The LEDs 2 are connected in series and in parallel and connected to the power supply wiring.
【００２２】ケース１の開口縁には、透明カバー４を重
ねて灯器５とし、図３のように灯箱６の開口座に着座さ
せ、カバー４の周縁をリング７で抑え、開口座を通して
ボルト８をリング７にねじ込んで緊締する。A transparent cover 4 is placed on the opening edge of the case 1 to form a lamp 5, which is then seated on the opening seat of the light box 6 as shown in FIG. Screw 8 onto ring 7 and tighten.
【００２３】ＬＥＤ２を搭載した灯器５は、発光ユニッ
トである。ＬＥＤには、それぞれの発光ユニットについ
て、赤，黄，青緑発光のＬＥＤを組込んで赤，黄，緑色
発光ユニットとし、図４に示すように、緑色発光ユニッ
ト９ａを灯箱６の上段に、黄色発光ユニット９ｂを中段
に、赤色発光ユニット９ｃを下段に組込んで３現示の多
灯形色灯式信号機を構成する。４現示，５現示の信号機
についても要領は全く同じである。The lamp 5 equipped with the LED 2 is a light emitting unit. For the respective light emitting units, LEDs of red, yellow, and blue-green light emission are incorporated into the LEDs to make red, yellow, and green light emitting units. As shown in FIG. 4, the green light emitting unit 9a is placed on the upper stage of the light box 6. By incorporating the yellow light emitting unit 9b in the middle stage and the red light emitting unit 9c in the lower stage, the multi-light type color light type traffic signal shown in FIG. The procedure is exactly the same for the 4th and 5th traffic lights.
【００２４】本発明において、色灯信号機の中心光度
と、視認距離との目安の設定は、表１のとおりである。In the present invention, the standard setting of the central luminous intensity of the color traffic light and the viewing distance is as shown in Table 1.
【００２５】[0025]
【表１】 [Table 1]
【００２６】本発明の実施形態においては、表２に示す
仕様のＬＥＤを用いた（赤色発光ＬＥＤ：スタンレー社
製，黄色発光ＬＥＤ：ＨＰ社製，青緑発光ＬＥＤ：日亜
化学工業（株）製）。青灯で当初５８０ｃｄ必要であれ
ば、表２の青緑色発光のＬＥＤ（２．５ｃｄ）のチップ
を２３０個使用すればよいが、本発明においては、１発
光ユニットに赤，黄，青緑発色発光のＬＥＤをそれぞれ
２２８個を用いた。In the embodiment of the present invention, LEDs having the specifications shown in Table 2 were used (red light emitting LED: Stanley, yellow light emitting LED: HP, blue green light emitting LED: Nichia Corporation). Made). If a blue light requires 580 cd at the beginning, 230 chips of the blue-green LED (2.5 cd) shown in Table 2 may be used. In the present invention, one light emitting unit emits red, yellow, and blue green colors. 228 light emitting LEDs were used respectively.
【００２７】[0027]
【表２】 [Table 2]
【００２８】表２に示すＬＥＤの色度図と信号現示の色
度を図５に示す。図５に明らかなとおり、緑の範囲は広
く、赤の範囲は狭い。波長の縮尺度合いからわかるよう
に人間の眼は赤や黄よりも緑の方が敏感であり、波長が
４９５ｍｍと５００ｍｍの色とでは明らかに異なる色に
見える。図中●印はＬＥＤ、ＬＥＤは▲に示す信号電球
を用いた現行の信号機の灯器からの発色に近いものを選
んだ。The chromaticity diagram of the LED shown in Table 2 and the chromaticity of signal display are shown in FIG. As is clear from FIG. 5, the green range is wide and the red range is narrow. As can be seen from the reduction scale of the wavelength, the human eye is more sensitive to green than red and yellow, and the colors of wavelengths of 495 mm and 500 mm appear to be clearly different colors. In the figure, ● is the LED, and the LED is the one that is close to the color generated from the lamp of the current traffic light using the signal light bulb shown in ▲.
【００２９】本実施形態では、赤灯（Ｒ），黄灯
（Ｙ），緑灯（Ｇ）のいずれについてもＮ＝２２８個の
ＬＥＤ２を基板３に同心円状に搭載してこれをケース１
内に収容し、電源配線コード１０はケース１の裏面から
引き出し、その先端はコネクタ接続とした。また基板３
上には黒色樹脂を注入し、各ＬＥＤ２の正面を除いて互
いに固定するとともに各ＬＥＤ２から発する熱の放熱性
を高めた。In this embodiment, N = 228 LEDs 2 are mounted concentrically on the substrate 3 for each of the red light (R), the yellow light (Y), and the green light (G), and this is mounted on the case 1
It was housed inside, and the power supply wiring cord 10 was pulled out from the back surface of the case 1, and the tip thereof was for connector connection. Substrate 3
Black resin was injected on the top of each LED 2 to fix them to each other except the front surface of each LED 2 and enhance the heat dissipation of the heat generated from each LED 2.
【００３０】図６（ａ），（ｂ）にＬＥＤの電気回路を
示す。図６（ａ）は赤灯（Ｒ），黄灯（Ｙ）のＬＥＤの
電気回路１１ａ、図６（ｂ）は緑灯（Ｇ）のＬＥＤの電
気回路１１ｂの基本構成を示す。赤灯（Ｒ），黄灯
（Ｙ）では、抵抗器Ｒ1と、ｎ1＝３８個のＬＥＤ２のチ
ップとを直列に結線し、その結線をｍ1＝３本並列に接
続してこれを１組とし、黄色及び赤色発光ユニット９
ｂ，９ｃは、その２組を並列に組合せて図１のように基
板３に搭載している。6A and 6B show an electric circuit of the LED. FIG. 6A shows the basic configuration of the electric circuit 11a of the red (R) and yellow (Y) LED, and FIG. 6B shows the basic configuration of the electric circuit 11b of the green (G) LED. In the case of the red light (R) and the yellow light (Y), the resistor R 1 and n 1 = 38 LED2 chips are connected in series, and the connection is connected in parallel with m 1 = 3 pieces. 1 set, yellow and red light emitting unit 9
b and 9c are mounted in combination on the substrate 3 as shown in FIG.
【００３１】一方緑灯（Ｇ）では、抵抗器Ｒ2とｎ2＝１
９個のＬＥＤ２のチップとを直列に結線し、その結線を
ｍ2＝６本並列に接続してこれを１組とし、緑色発光ユ
ニット９ａにその２組を並列に組合せて基板３に搭載し
ている。なお、抵抗器Ｒ1，Ｒ2の設定については、黄灯
にＲ1＝１．８ＫΩ，赤灯にＲ1＝２．０ＫΩ，緑灯にＲ
2＝３．３ＫΩを選定し、印加電圧直流１００Ｖで１チ
ップに対し、緑色発光したＬＥＤに１３ｍＡ，黄色発光
ＬＥＤと、赤色発光ＬＥＤに１８ｍＡ流すように設定し
た。On the other hand, in the green lamp (G), resistors R 2 and n 2 = 1
Nine LED2 chips are connected in series, and the connection is connected in parallel with m 2 = 6 pieces to form one set, and the green light emitting unit 9a is combined with the two sets in parallel and mounted on the substrate 3. ing. The resistors R 1 and R 2 are set as follows: R 1 = 1.8KΩ for yellow light, R 1 = 2.0KΩ for red light, R 1 for green light.
2 = 3.3 KΩ was selected, and it was set so that 13 mA was applied to the green-emitting LED, 18 mA was applied to the yellow-emitting LED, and 18 mA was applied to the red-emitting LED per chip with an applied voltage of 100 V DC.
【００３２】図７（ａ），（ｂ）に発光ユニットの電気
回路を示す。図７（ａ）は、黄，赤色発光ユニット９
ｂ，９ｃの電気回路，図７（ａ）は、緑色発光ユニット
９ａの電気回路である。いずれも各組の電気回路１１
ａ，１１ｂは、直流電源としての整流器１２に結線さ
れ、整流器１２は、絶縁トランス１３を介して１００Ｖ
の交流電源に接続されたものである。各電気回路は、上
記の回路構成によって、インピーダンスは同じになる。7A and 7B show an electric circuit of the light emitting unit. FIG. 7A shows a yellow and red light emitting unit 9
Electric circuits b and 9c, and FIG. 7A are electric circuits of the green light emitting unit 9a. In each case, each set of electric circuit 11
a and 11b are connected to a rectifier 12 serving as a DC power supply, and the rectifier 12 is connected to an insulating transformer 13 to generate 100V.
It is connected to the AC power supply. Each electric circuit has the same impedance due to the above circuit configuration.
【００３３】各電気回路に用いるＬＥＤの総数Ｎ、同じ
結線に含まれるＬＥＤの数ｎ1，ｎ2、結線の数ｍ1，ｍ2
は上記の例に限られるものではなく、各灯の電気回路の
インピーダンスを整合させる組合わせは、他の組合わせ
も可能である。本発明では、表２の特性のＬＥＤの組合
わせを用いてｎ1＞ｎ2（ｎ1，ｎ2＝１，２，・・・
Ｎ）、（ｍ1，ｍ2＝１，２，・・・）の条件を満たして
Ｎ＝ｎ1×ｍ1＝ｎ2×ｍ2を実現している。信号電球を用
いた信号機では信号制御電圧に３０Ｖが用いられるが、
本発明においては１００Ｖの交流電源を整流して各電気
回路に１００Ｖの直流電圧を印加する。これによって消
費電力が減少し、回路電流は１／１０程度となって電源
配線コードのケーブルドロップの考慮は不要となる。The total number N of LEDs used in each electric circuit, the numbers n 1 and n 2 of LEDs included in the same wiring, and the numbers m 1 and m 2 of wiring.
Is not limited to the above example, and the combination for matching the impedance of the electric circuit of each lamp may be another combination. In the present invention, n 1 > n 2 (n 1 , n 2 = 1, 2, ...
N) and (m 1 , m 2 = 1, 2, ...) Are satisfied to realize N = n 1 × m 1 = n 2 × m 2 . 30V is used for the signal control voltage in a traffic light using a signal light bulb.
In the present invention, an AC power supply of 100V is rectified and a DC voltage of 100V is applied to each electric circuit. As a result, the power consumption is reduced, the circuit current becomes about 1/10, and it becomes unnecessary to consider the cable drop of the power supply wiring cord.
【００３４】また、ＬＥＤ２は、数ｍＡの電流が流れて
も微弱点灯することが知られている。発光ユニット９ａ
〜９ｃの各電気回路１１ａ，１１ａ、１１ｂ，１１ｂ毎
に絶縁トランス１３を挿入して交流電源の配線ケーブル
１０から各電気回路を絶縁することにより誘導を１／１
０以下に抑えることができる。本実施形態に用いたＬＥ
Ｄは、４０Ｖ程度で微弱点灯することが確かめられた
が、絶縁トランス１３をもって信号制御条件の電源側配
線から各電気回路を切離すことでＬＥＤの微弱点灯を防
止し、あわせて電圧調整が容易となる。It is known that the LED 2 is weakly lit even when a current of several mA flows. Light emitting unit 9a
Insulation transformer 13 is inserted into each of electric circuits 11a, 11a, 11b, 11b of 9c to insulate each electric circuit from wiring cable 10 of the AC power source, thereby reducing the induction to 1/1.
It can be suppressed to 0 or less. LE used in this embodiment
It was confirmed that D is weakly lit at about 40V, but the isolation transformer 13 separates each electric circuit from the power supply side wiring of the signal control condition to prevent weak lighting of the LED, and the voltage adjustment is also easy. Becomes
【００３５】各発光ユニット９ａ〜９ｃの電気回路のイ
ンピーダンスを等しくするのは、４現示，５現示の信号
機において、２灯発光の２灯点灯回路を作る場合に重要
である。「減速現示」は、黄色発光ユニットと緑色発光
ユニットの２灯（Ｙ3，ＧA）の同時点灯により現示さ
れ、「警戒現示」は、黄色発光ユニットと赤色発光ユニ
ットの２灯（Ｙ3，ＧC）の同時点灯により現示される。
図８は、「減速現示」の例を示している。黄色発光ユニ
ット９ｂの電気回路１１ａと、緑色発光ユニット９ａの
電気回路１１ｂとは、整流器１２を介してそれぞれ別個
に絶縁トランス１３に結線され、交流電源から給電され
て発光するが、黄色発光ユニット９ｂの各電気回路１１
ａと緑色発光ユニット９ａの各電気回路１１ｂとは直列
に結線され、黄色発光ユニット９ｂに接続された絶縁ト
ランス１３は、交流１００Ｖを２００Ｖに昇圧して各整
流器１２，１２に給電する。これによって、インピーダ
ンスが等しい２つの発光ユニット９ｂ，９ｃの電気回路
１１ａ，１１ｂにはそれぞれ直流１００Ｖが給電され、
黄色発光ユニット，青色発光ユニットの光度が確保され
る。片方の発光ユニットのＬＥＤの少なくとも一つが断
芯したときには両灯は同様に光度を下げるかあるいは同
時に減灯となる。これは、警戒現示の２点灯回路におい
ても同じである。It is important to make the impedances of the electric circuits of the respective light emitting units 9a to 9c equal to each other when a two-lamp lighting circuit for two-lamp lighting is made in the traffic signal shown in FIG. "Deceleration current-" is currently indicated by the simultaneous lighting of the two light yellow light emitting unit and the green light-emitting unit (Y 3, G A), "Warning current-" is two lamps yellow light emitting unit and a red light-emitting unit ( This is indicated by simultaneous lighting of Y 3 , G C ).
FIG. 8 shows an example of “deceleration indication”. The electric circuit 11a of the yellow light emitting unit 9b and the electric circuit 11b of the green light emitting unit 9a are separately connected to the insulating transformer 13 via the rectifier 12, and are supplied with power from an AC power source to emit light. Each electric circuit 11
The a and the electric circuit 11b of the green light emitting unit 9a are connected in series, and the insulating transformer 13 connected to the yellow light emitting unit 9b boosts AC 100V to 200V and supplies power to the rectifiers 12 and 12. As a result, DC 100V is supplied to the electric circuits 11a and 11b of the two light emitting units 9b and 9c having the same impedance,
The luminous intensity of the yellow light emitting unit and the blue light emitting unit is secured. When at least one of the LEDs of one of the light emitting units is disconnected, both lamps similarly decrease in luminous intensity or simultaneously diminish. This is the same in the two-lighting circuit for warning display.
【００３６】[0036]
【発明の効果】以上のように本発明によれば、赤灯，黄
灯，緑灯に用いるＬＥＤの特性にあわせた電気回路を構
成し、発光ユニットの電気回路のインピーダンスを等し
く設定したので各灯の発光の視認性に違和感がなく、各
灯の単独での点灯はもとより、２灯同時点灯の際にも各
灯をバランスよく点灯させることができ、１灯が断線し
たときにも２灯はバランスを保持し、誤った現示を示す
ことがない。しかも、拡散角度は電球式の拡散角度±３
゜ に対し、ＬＥＤの使用により±５゜ 以上に拡大され、
信号の視認性を向上できる。As described above, according to the present invention, an electric circuit adapted to the characteristics of the LEDs used for the red lamp, the yellow lamp, and the green lamp is constructed, and the impedance of the electric circuit of the light emitting unit is set to be equal. There is no discomfort in the visibility of the light emission of the lights, and each light can be turned on in a balanced manner when both lights are turned on as well as when they are turned on at the same time. Maintains balance and does not show false indications. Moreover, the diffusion angle is a light bulb type diffusion angle ± 3
By using LED, it is expanded to ± 5 ° or more,
The visibility of the signal can be improved.
【００３７】また、各発光ユニットの制御電圧に交流１
００Ｖを用いて制御電流を低減させ、電源ケーブルでの
電圧降下を抑え、信号トランスの調整を容易に行うこと
ができる。さらに、各灯毎に絶縁トランスを装備して信
号機のインピーダンスを下げるために、誘導電圧による
ＬＥＤの微弱点灯を抑えることができる効果を有する。In addition, the control voltage of each light emitting unit is AC 1
It is possible to reduce the control current by using 00V, suppress the voltage drop in the power cable, and easily adjust the signal transformer. Further, since each lamp is equipped with an insulating transformer to lower the impedance of the traffic signal, it is possible to suppress weak lighting of the LED due to the induced voltage.
【図１】本発明に用いる発光ユニットの一部断面正面図
である。FIG. 1 is a partially sectional front view of a light emitting unit used in the present invention.
【図２】発光ユニットの一部断面側面図である。FIG. 2 is a partial cross-sectional side view of a light emitting unit.
【図３】灯箱に発光ユニットを取付けた状況を示すもの
であり、図４のＡ−Ａ線に相当する部分の断面図であ
る。FIG. 3 is a cross-sectional view of a portion corresponding to the line AA of FIG. 4, showing a state in which a light emitting unit is attached to a light box.
【図４】本発明の多灯形色灯式信号機の一例を示す図で
ある。FIG. 4 is a diagram showing an example of a multi-light type color light type traffic signal of the present invention.
【図５】色度図と信号現示の色度を示す図である。FIG. 5 is a diagram showing a chromaticity diagram and a chromaticity of signal representation.
【図６】（ａ）は黄，赤色発光ユニットのＬＥＤの電気
回路，（ｂ）は緑色発光ユニットの電気回路図である。6A is an electric circuit of LEDs of yellow and red light emitting units, and FIG. 6B is an electric circuit diagram of a green light emitting unit.
【図７】（ａ）は赤，黄色発光ユニットのＬＥＤの電気
回路，（ｂ）は緑色発光ユニットの電気回路を示す図で
ある。FIG. 7A is a diagram showing an electric circuit of LEDs of red and yellow light emitting units, and FIG. 7B is a diagram showing an electric circuit of a green light emitting unit.
【図８】減速現示の２点灯回路を示す図である。FIG. 8 is a diagram showing two lighting circuits for deceleration indication.
【図９】従来の信号機に用いられる信号電球と信号レン
ズとの関係を示す図である。FIG. 9 is a diagram showing a relationship between a signal bulb and a signal lens used in a conventional traffic signal.
１ ケース ２ ＬＥＤ ３ 基板 ４ 透明カバー ５ 灯器 ６ 灯箱 ７ リング ８ ボルト ９ａ 緑色発光ユニット ９ｂ 黄色発光ユニット ９ｃ 赤色発光ユニット １０ 電源配線コード １１ａ，１１ｂ 電気回路 １２ 整流器 １３ 絶縁トランス 1 Case 2 LED 3 Substrate 4 Transparent Cover 5 Lamp 6 Lamp Box 7 Ring 8 Volt 9a Green Light-Emitting Unit 9b Yellow Light-Emitting Unit 9c Red Light-Emitting Unit 10 Power Wiring Cord 11a, 11b Electric Circuit 12 Rectifier 13 Insulation Transformer
Claims (5)
ぞれ赤，黄，青緑色発光の発光ダイオードを用いた多灯
形色灯式信号機であって、 各灯に用いられた発光ダイオードの総数Ｎは同じであ
り、灯器に分散して配置され、発光ダイオードは、各灯
器毎に電気回路に接続して発光ユニットを構成し、 電気回路は、抵抗器と、複数個の発光ダイオードとが直
列連結された結線を複数本並列連結して直流電源に接続
されたものであり、 赤灯と黄灯との電気回路は、ｎ1個の発光ダイオードを
直列連結した結線をｍ1本並列連結したもの、 緑灯の電気回路は、ｎ2個の発光ダイオードを直列連結
した結線をｍ2本並列連結したもの、 但し、ｎ1＞ｎ2 ｍ1＜ｍ2 （ｎ1，ｎ2＝１，２，３…，Ｎ） （ｍ1，ｍ2＝１，２，…）であり、 直流電源は、同一の交流電源から供給された交流電圧を
各電気回路毎に整流して発光ダイオードに直流を給電す
るものであり、 各灯の電気回路のインピーダンスは同じであることを特
徴とする多灯形色灯式信号機。1. A multi-light type color light type traffic signal using red, yellow and blue-green light emitting diodes as light emitting sources of red, yellow and green lamps, respectively. The total number N of the light emitting diodes is the same, and the light emitting diodes are distributed and arranged in the lamps. The light emitting diodes are connected to an electric circuit for each lamp to form a light emitting unit. A number of LEDs connected in series are connected in parallel and connected to a DC power supply. The electric circuit of the red light and the yellow light is a connection in which n 1 LEDs are connected in series. M 1 connected in parallel, the green light electric circuit has m 2 connected in series with n 2 light emitting diodes connected in series, where n 1 > n 2 m 1 <m 2 (n 1 , n 2 = 1 , 2, 3 ..., N) (m 1 , m 2 = 1, 2, ...), and the DC power supply is This is a multi-lamp type color that is characterized in that the AC voltage supplied from the same AC power source is rectified for each electric circuit to supply DC to the light emitting diode, and the electric circuit of each lamp has the same impedance. Light type traffic light.
有し、各々の電気回路は、１電気回路毎に直流電源に接
続されたものであることを特徴とする請求項１に記載の
多灯形色灯式信号機。2. The light emitting unit of each lamp has two sets of electric circuits, and each electric circuit is connected to a DC power source for each electric circuit. Multi-light color signal traffic light.
示の信号機であり、同時に現示する黄灯の２灯又は黄灯
と緑灯との２灯の電気回路は直列に結線され、各電気回
路に接続された直流電源のうち、一方の直流電源は、両
電気回路に給電するものであり、 両電気回路に通電する直流電源の電圧は、他の電気回路
に接続された直流電源の電圧の２倍であって、２灯の電
気回路のインピーダンスを同一に整合するものであるこ
とを特徴とする請求項１又は２に記載の多灯形色灯式信
号機。3. A multi-light type color light type traffic light is a traffic light of 4 or 5 lights, and an electric circuit of two lights of yellow light or two lights of yellow light and green light shown at the same time is serial. One of the DC power supplies connected to each of the electric circuits is connected to each of the electric circuits, and one of the DC power supplies supplies power to both electric circuits.The voltage of the DC power supplied to both electric circuits is connected to the other electric circuits. 3. The multi-lamp type color light type traffic signal according to claim 1 or 2, wherein the voltage is twice the voltage of the DC power supply and the impedances of the electric circuits of the two lamps are matched.
含み、 絶縁トランスは、交流電源を整流器に給電し、且つ交流
電源配線と、各電気回路との配線間を電気的にしゃ断し
て発光ダイオードの微弱点灯を阻止するものであり、 整流器は、交流電源電圧を整流して各灯の電気回路に給
電するものであることを特徴とする請求項１，２又は３
に記載の多灯形色灯式信号機。4. The DC power supply includes an insulation transformer and a rectifier, and the insulation transformer supplies AC power to the rectifier, and electrically disconnects the AC power supply wiring from each electric circuit to emit light. The diode for preventing weak lighting of the diode, and the rectifier rectifies an AC power supply voltage to supply power to an electric circuit of each lamp.
The multi-light type color light type traffic signal described in.
灯との２灯の両電気回路の直流電源に設けられた絶縁ト
ランスは、１００Ｖの交流電源電圧を２００Ｖに昇圧し
て各整流器に給電ものであることを特徴とする請求項４
に記載の多灯形色灯式信号機。5. An insulating transformer provided in a DC power supply of both electric lights of two yellow lights or two lights of a yellow light and a green light, which are simultaneously shown, boosts an AC power supply voltage of 100V to 200V. The power is supplied to each rectifier.
The multi-light type color light type traffic signal described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8042979A JP2852895B2 (en) | 1996-02-29 | 1996-02-29 | Multi-light type color light signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8042979A JP2852895B2 (en) | 1996-02-29 | 1996-02-29 | Multi-light type color light signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09226582A true JPH09226582A (en) | 1997-09-02 |
| JP2852895B2 JP2852895B2 (en) | 1999-02-03 |
Family
ID=12651165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8042979A Expired - Lifetime JP2852895B2 (en) | 1996-02-29 | 1996-02-29 | Multi-light type color light signal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2852895B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007207605A (en) * | 2006-02-02 | 2007-08-16 | Kyosan Electric Mfg Co Ltd | Signal for railroad |
-
1996
- 1996-02-29 JP JP8042979A patent/JP2852895B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007207605A (en) * | 2006-02-02 | 2007-08-16 | Kyosan Electric Mfg Co Ltd | Signal for railroad |
| JP4648847B2 (en) * | 2006-02-02 | 2011-03-09 | 株式会社京三製作所 | Railway traffic signal |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2852895B2 (en) | 1999-02-03 |
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