JP5484144B2 - G-shaped LED signal bulb - Google Patents

G-shaped LED signal bulb Download PDF

Info

Publication number
JP5484144B2
JP5484144B2 JP2010067035A JP2010067035A JP5484144B2 JP 5484144 B2 JP5484144 B2 JP 5484144B2 JP 2010067035 A JP2010067035 A JP 2010067035A JP 2010067035 A JP2010067035 A JP 2010067035A JP 5484144 B2 JP5484144 B2 JP 5484144B2
Authority
JP
Japan
Prior art keywords
light
light emitting
emitting diodes
terminal
bulb
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.)
Active
Application number
JP2010067035A
Other languages
Japanese (ja)
Other versions
JP2011195121A (en
Inventor
勇 鈴木
悦彦 山崎
健 水野
Original Assignee
大同信号株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 大同信号株式会社 filed Critical 大同信号株式会社
Priority to JP2010067035A priority Critical patent/JP5484144B2/en
Publication of JP2011195121A publication Critical patent/JP2011195121A/en
Application granted granted Critical
Publication of JP5484144B2 publication Critical patent/JP5484144B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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 Arrangement For Electric Light Sources In General (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Description

この発明は、鉄道用のＧ形信号電球を代替しうるＧ形ＬＥＤ信号電球に関し、詳しくは、鉄道用の多灯形色灯信号機に装着されるＧ形信号電球に対する取付互換性や給電互換性を持たせつつ発光部には発光ダイオード（ＬＥＤ）を採用した信号電球であるＧ形ＬＥＤ信号電球に関する。   The present invention relates to a G-type LED signal light bulb that can replace a G-type signal light bulb for railways, and more particularly, mounting compatibility and power supply compatibility for G-type signal light bulbs mounted on railway multi-lamp color light traffic lights. The present invention relates to a G-type LED signal bulb that is a signal bulb that employs a light emitting diode (LED) in a light emitting portion.

鉄道用の信号機に装着される信号電球について、フィラメント電球に代えてＬＥＤ電球ユニットを使用する場合が増えている（例えば特許文献１〜６参照）。
鉄道用の信号機のうち多灯形色灯信号機に装着される信号電球としてはＡ形電球やＧ形電球が使用されるが、近年はソケット（口金）の接触性に加えて量産性の良いＧ形電球が多用されている。 Regarding signal light bulbs mounted on railway traffic lights, cases where LED light bulb units are used instead of filament light bulbs are increasing (for example, see Patent Documents 1 to 6).
Of the traffic lights for railways, A light bulbs and G light bulbs are used as signal light bulbs to be mounted on multi-color color light traffic lights. Recently, in addition to the contactability of sockets (caps), G has good mass productivity. Shaped bulbs are frequently used.

ソケットの同じ信号電球であるＧ形電球とＩ形電球が相違するのは、Ｉ形電球はフィラメントや発光ダイオードといった発光部への給電を二端子から行うようになっているのに対し（例えば特許文献１〜４，６参照）、Ｇ形電球は（例えば非特許文献１や特許文献５の図７〜９を参照）、フィラメントかそれに代わる発光ダイオードといった発光部を二つ具えていて、主発光部（一方の発光部）が主端子Ｍ（メインフィラメント端子）と共通端子Ｃ（コモン端子）とに接続されていて両端子Ｍ，Ｃから給電がなされると発光し、副発光部（他方の発光部）が副端子Ｓ（サブフィラメント端子）と共通端子Ｃ（コモン端子）とに接続されていて両端子Ｓ，Ｃから給電がなされると発光するようになっている。   The difference between G-type bulbs and I-type bulbs, which are signal bulbs with the same socket, is that I-type bulbs supply power to light-emitting parts such as filaments and light-emitting diodes from two terminals (for example, patents) References 1-4 and 6), the G-shaped light bulb (see, for example, FIGS. 7 to 9 of Non-Patent Document 1 and Patent Document 5) has two light-emitting parts such as a filament or a light-emitting diode instead of the main light emission. Part (one light-emitting part) is connected to a main terminal M (main filament terminal) and a common terminal C (common terminal), and when power is supplied from both terminals M and C, the sub-light-emitting part (the other light-emitting part) The light emitting part) is connected to the sub terminal S (sub filament terminal) and the common terminal C (common terminal), and emits light when power is supplied from both terminals S and C.

主発光部と副発光部の双方にＬＥＤを用いたＧ形ＬＥＤ信号電球について特許文献５の図８で公知になった構成を本願発明の課題の説明に役立つ程度に説明する。このＧ形ＬＥＤ信号電球４０は（図４（ａ）参照）、主端子Ｍと共通端子Ｃとに接続された主発光部４３も、副端子Ｓと共通端子Ｃとに接続された副発光部４６も、発光ダイオードの直列接続を更に並列接続したものからなるが、主発光部４３は、主端子Ｍへ直に接続されるのでなく、整流回路４２とトランス４１を介して接続されている。副発光部４６は、副端子Ｓへ直に接続されるのでなく、整流回路４５とトランス４４を介して接続されている。   Regarding the G-type LED signal bulb using LEDs for both the main light-emitting portion and the sub-light-emitting portion, the configuration known in FIG. 8 of Patent Document 5 will be described to the extent that it is useful for explaining the problem of the present invention. In this G-shaped LED signal bulb 40 (see FIG. 4A), the main light emitting unit 43 connected to the main terminal M and the common terminal C is also the sub light emitting unit connected to the sub terminal S and the common terminal C. 46 also includes a series connection of light emitting diodes further connected in parallel, but the main light emitting portion 43 is not directly connected to the main terminal M but is connected to the rectifier circuit 42 via the transformer 41. The sub light emitting unit 46 is not directly connected to the sub terminal S, but is connected to the rectifier circuit 45 via the transformer 44.

トランス４１，４４は給電された交流の電圧を変換するものであり、整流回路４２，４５は交流を直流に変換するものであり、そのうち整流回路４２は（図４（ｂ）参照）、ダイオードＤ１〜Ｄ４によるブリッジ回路からなり、整流回路４５は（図４（ｂ）参照）、ダイオードＤ５〜Ｄ８によるブリッジ回路からなり、いずれも、点灯ちらつき防止のために全波整流を行うようになっている。
このようなＧ形ＬＥＤ信号電球４０が多灯形色灯信号機には複数個装着され、２灯直列点灯される黄色灯Ｙ１，Ｙ２にもそれぞれＧ形ＬＥＤ信号電球４０が装着される（図４（ｃ）参照）。また、多灯形色灯信号機には、２灯直列点灯に係る片断線時の不正現示を防止するために、電圧平衡器Ｌが設けられて主端子Ｍや副端子Ｓに接続されている。 The transformers 41 and 44 convert supplied AC voltage, and the rectifier circuits 42 and 45 convert AC to DC. Among them, the rectifier circuit 42 (see FIG. 4B) includes a diode D1. The rectifier circuit 45 is composed of a bridge circuit composed of diodes D5 to D8 (see FIG. 4B), and all perform full-wave rectification to prevent lighting flicker. .
A plurality of such G-shaped LED signal bulbs 40 are mounted on the multi-lamp color lamp traffic light, and the G-shaped LED signal bulb 40 is also mounted on each of the yellow lamps Y1 and Y2 that are lit in series (FIG. 4). (See (c)). In addition, in the multi-lamp type color lamp traffic light, a voltage balance L is provided and connected to the main terminal M and the sub-terminal S in order to prevent unauthorized display at the time of one-wire disconnection related to two-lamp series lighting. .

特開２０００−５２９８８号公報JP 2000-52988 A 実用新案登録第３０６８５０２号公報Utility Model Registration No. 3068502 特開２００２−１７３０２８号公報JP 2002-173028 A 特開２００４−１１４９６８号公報JP 2004-114968 A 特開２００５−２４７１６０号公報JP-A-2005-247160 特開２００９−１１１４号公報JP 2009-1114 A

株式会社交友社平成３年７月２０日発行、吉村寛・吉越三郎共著「信号１７版」ｐ．９４〜９８Koyusha Co., Ltd., issued July 20, 1991, co-written by Hiroshi Yoshimura and Saburo Yoshikoshi “Signal 17th Edition” p. 94-98

しかしながら、このような従来のＧ形ＬＥＤ信号電球４０では、発光部４３，４６と給電端子Ｍ，Ｓとの間にトランス４１，４４と整流回路４２，４５が介在していて、その整流回路４２，４５がダイオードブリッジからなるため、その故障状態によっては２灯直列点灯時に視認性が低下することがある。すなわち、２灯直列点灯状態の接続において（図４（ｃ）参照）、部品が正常な場合は、２灯Ｙ１，Ｙ２とも同様な輝度となり安全であるが、例えば一方の黄色灯Ｙ１の整流回路４２のダイオードＤ１がショートモードで故障した場合すなわち整流回路短絡故障の場合を想定すると、次のような状況になる。   However, in such a conventional G-type LED signal bulb 40, the transformers 41 and 44 and the rectifier circuits 42 and 45 are interposed between the light emitting units 43 and 46 and the power supply terminals M and S, and the rectifier circuit 42 is provided. , 45 are composed of diode bridges, and depending on the failure state, the visibility may deteriorate when two lamps are lit in series. That is, when the two lamps are connected in series (see FIG. 4C), when the components are normal, the two lamps Y1 and Y2 have the same brightness and are safe. For example, the rectifier circuit of one yellow lamp Y1 Assuming a case where the diode D1 of 42 fails in the short mode, that is, a case where the rectifier circuit is short-circuited, the following situation occurs.

この場合、トランス４１からの正方向の電流は、ダイオードＤ１→ダイオードＤ２→トランス４１と流れる循環流となり、主発光部４３には流れないため主発光部４３は発光せず、黄色灯Ｙ１は滅灯となる。ところが、他方の黄色灯Ｙ２において同じ主端子Ｍ側にある主発光部４３は通電されるので黄色灯Ｙ２は滅灯とならない。しかも、フィラメントに多い断線の場合と異なり、整流回路短絡故障では端子Ｍ，Ｓ，Ｃから見た通電量の明確な変化がないので、２灯Ｙ１，Ｙ２の通電量をバランスさせるという電圧平衡器Ｌの不正現示防止機能が活かしきれない。
そのため、整流回路短絡故障では２灯Ｙ１，Ｙ２の視認性が低下するのである。 In this case, the current in the positive direction from the transformer 41 becomes a circulating flow that flows from the diode D1 → the diode D2 → the transformer 41, and does not flow to the main light emitting portion 43. Therefore, the main light emitting portion 43 does not emit light, and the yellow lamp Y1 is extinguished. It becomes a light. However, since the main light emitting unit 43 on the same main terminal M side is energized in the other yellow lamp Y2, the yellow lamp Y2 is not extinguished. In addition, unlike the case where the filaments are frequently disconnected, there is no clear change in the energization amount seen from the terminals M, S, and C in the case of a short circuit failure in the rectifier circuit. L's illegal display prevention function cannot be fully utilized.
For this reason, the visibility of the two lamps Y1 and Y2 is reduced due to a short circuit failure in the rectifier circuit.

もっとも、発光部も発光ダイオードを含んでいるので短絡故障の発生が想定されるが、発光部では、複数の発光ダイオードが直列接続されていることから、一部の発光ダイオードの短絡故障の影響が局所にとどまるので、致命的な短絡故障の発生頻度は極めて小さいうえ、発光部の故障では、発光状態の変化と通電量の変化が連動するので、電圧平衡器Ｌの２灯通電量バランス機能が活きる。そのため短絡故障でも視認性の低下が少ない。
そこで、２灯直列点灯への適合性を高めるべく全波整流専用の整流回路の使用を取りやめるとともに全波整流専用回路が無くても点灯ちらつきが防止されるＧ形ＬＥＤ信号電球を実現することが技術的な課題となる。 However, since the light emitting unit also includes a light emitting diode, it is assumed that a short circuit failure will occur. However, in the light emitting unit, a plurality of light emitting diodes are connected in series. Since it stays locally, the frequency of fatal short-circuit faults is extremely small, and in the case of a light emitting unit failure, the change in the light emission state and the change in the energization amount are linked. Live. Therefore, there is little decrease in visibility even when a short circuit failure occurs.
Therefore, in order to improve the suitability for two-lamp series lighting, the use of a rectifier circuit dedicated to full-wave rectification is stopped, and a G-type LED signal bulb that prevents flickering without a full-wave rectifier dedicated circuit is realized. It becomes a technical challenge.

本発明のＧ形ＬＥＤ信号電球は（解決手段１）、このような課題を解決するために創案されたものであり、鉄道のＧ形信号電球と取付互換性のある主端子と副端子と共通端子と、前記主端子と前記共通端子とを介する交流の給電に応じて発光する複数の発光ダイオードを有する主発光部と、前記副端子と前記共通端子とを介する交流の給電に応じて発光する複数の発光ダイオードを有する副発光部とを備えたＧ形ＬＥＤ信号電球において、前記主発光部および前記副発光部のうち何れか一方または双方における複数の発光ダイオードが、給電された交流を半波整流しながら前記共通端子へ向かう電流を通過させて発光する正方向半波整流部と、その交流を半波整流しながら前記共通端子から来る電流を通過させて発光する逆方向半波整流部とに分かれており、これらの発光ダイオードのみによって全波整流が行われるようになっていることを特徴とする。   The G-type LED signal light bulb of the present invention (Solution 1) was devised to solve such a problem, and is common to the main terminal and the sub-terminal that are compatible with the G-type signal light bulb of the railway. A main light emitting unit having a plurality of light emitting diodes that emit light in response to AC power supply via the terminal, the main terminal and the common terminal; and light emission in response to AC power supply through the sub terminal and the common terminal In a G-type LED signal light bulb having a sub-light-emitting unit having a plurality of light-emitting diodes, a plurality of light-emitting diodes in one or both of the main light-emitting unit and the sub-light-emitting unit generate half-waves from the supplied alternating current. A forward half-wave rectifier that emits light by passing a current toward the common terminal while rectifying, and a reverse half-wave rectifier that emits light by passing a current coming from the common terminal while half-wave rectifying the alternating current; Divided and characterized by being adapted to full-wave rectification is performed only by the light-emitting diodes.

また、本発明のＧ形ＬＥＤ信号電球は（解決手段２）、上記解決手段１のＧ形ＬＥＤ信号電球であって、前記正方向半波整流部と前記逆方向半波整流部の何れにもツェナーダイオードが逆向きで直列接続されていて、低電圧の電流通過を阻止するようになっていることを特徴とする。   The G-type LED signal light bulb of the present invention is (Solution means 2), which is the G-type LED signal light bulb of the above-mentioned solution means 1, both in the forward half-wave rectifying section and in the reverse half-wave rectifying section. The Zener diodes are connected in series in the reverse direction to prevent passage of a low voltage current.

さらに、本発明のＧ形ＬＥＤ信号電球は（解決手段３）、上記解決手段１，２のＧ形ＬＥＤ信号電球であって、前記主発光部および前記副発光部のうち発光ダイオードのみによって全波整流が行われるようになった発光部には、高電圧の電流を通過させるバリスタとこのバリスタの短絡故障時に溶断するフューズとを直列接続したものが、並列接続されていることを特徴とする。   Further, the G-type LED signal light bulb of the present invention is (Solution means 3), which is the G-type LED signal light bulb of the above-mentioned solution means 1 and 2, wherein only the light-emitting diodes of the main light-emitting part and the sub-light-emitting part are full-wave. The light emitting section that has been rectified is connected in parallel with a series connection of a varistor that allows a high-voltage current to pass through and a fuse that melts in the event of a short circuit failure of the varistor.

また、本発明のＧ形ＬＥＤ信号電球は（解決手段４）、上記解決手段１〜３のＧ形ＬＥＤ信号電球であって、前記正方向半波整流部の発光ダイオードと前記逆方向半波整流部の発光ダイオードとが近接配置されていることを特徴とする。   The G-type LED signal light bulb of the present invention is (Solution means 4), which is the G-type LED signal light bulb of the above-mentioned solution means 1 to 3, wherein the light-emitting diode of the forward half-wave rectifier and the reverse half-wave rectifier are used. The light-emitting diodes of the parts are arranged in close proximity.

また、本発明のＧ形ＬＥＤ信号電球は（解決手段５）、上記解決手段１〜４のＧ形ＬＥＤ信号電球であって、前記正方向半波整流部と前記逆方向半波整流部が何れも複数の発光ダイオードの直列接続を含んでいて、電流が複数の発光ダイオードを通過するようになっていることを特徴とする。   The G-type LED signal light bulb of the present invention is (Solution means 5), which is the G-type LED signal light bulb of the above-mentioned solution means 1 to 4, wherein the forward half-wave rectifier and the reverse half-wave rectifier are Includes a series connection of a plurality of light emitting diodes, and is characterized in that a current passes through the plurality of light emitting diodes.

このような本発明のＧ形ＬＥＤ信号電球にあっては（解決手段１）、全波整流の整流回路と発光ダイオードの発光部とを一体化したことにより、全波整流専用回路が無くなって全波整流専用回路の単独故障も無くなるため、故障の発生頻度が激減するうえ、ダイオードが故障すると発光量が変化すると同時に通電量も変化することから、２灯直列点灯時には通電量変化を補償する電圧平衡器の不正現示防止機能が働いて２灯の通電量がバランスするので、ダイオードが短絡故障しても２灯の視認性の低下が少なくて済む。   In such a G-type LED signal bulb of the present invention (Solution 1), the full-wave rectification rectifier circuit and the light-emitting part of the light-emitting diode are integrated, so that the full-wave rectification dedicated circuit is eliminated. Since there is no single failure of the dedicated circuit for wave rectification, the frequency of failure is drastically reduced, and if the diode fails, the amount of light emission changes as well as the amount of current flowing. Since the function of preventing the improper display of the balancer works and the energization amount of the two lamps is balanced, even if the diode is short-circuited, the visibility of the two lamps can be reduced little.

また、個々の発光ダイオードは交流全波発光しないが、正方向半波整流部と逆方向半波整流部とが交互に交流半波点灯するため、発光部全体としては交流全波点灯することになるので、点灯ちらつきが全波整流専用回路使用時と同様に防止される。なお、個々の発光ダイオードが交流半波発光になって光量が減少することについては、発光ダイオードの個数を増やしたり、具体化に際して実装される抵抗やツェナーダイオードといった付加部材にて電流値を適宜調整したり、給電する電圧を適宜調整することで、補償すれば良い。
したがって、この発明によれば、点灯ちらつきが全波整流レベルに抑えられていても２灯直列点灯に良く適合するＧ形ＬＥＤ信号電球を実現することができる。 In addition, although the individual light emitting diodes do not emit AC full-wave light, the forward half-wave rectification unit and the reverse half-wave rectification unit alternately perform AC half-wave lighting. Therefore, flickering of lighting is prevented in the same manner as when using a full-wave rectification dedicated circuit. In addition, regarding the fact that individual light-emitting diodes emit AC half-wave light and the amount of light decreases, the number of light-emitting diodes can be increased, or the current value can be adjusted as appropriate with additional members such as resistors and Zener diodes that are mounted during implementation. Or by appropriately adjusting the power supply voltage.
Therefore, according to this invention, even if lighting flicker is suppressed to the full-wave rectification level, it is possible to realize a G-type LED signal bulb that is well suited for two-lamp series lighting.

また、本発明のＧ形ＬＥＤ信号電球にあっては（解決手段２）、発光ダイオードに対してその順方向と逆の向きで且つ直列にツェナーダイオードを接続して、低電圧の電流は発光部の発光ダイオードを通過できないようにしたことにより、給電時・点灯時には発光ダイオードの印加電圧ひいては通電量が安定するとともに、非給電時・滅灯時にはケーブル誘起ノイズ等による不所望な点灯が防止される。   Further, in the G-type LED signal light bulb of the present invention (Solution means 2), a Zener diode is connected in series with the light emitting diode in a direction opposite to its forward direction, and a low voltage current is emitted from the light emitting unit. By preventing the light from passing through the light-emitting diode, the applied voltage of the light-emitting diode and the amount of current flow are stabilized during power supply and lighting, and undesired lighting due to cable-induced noise is prevented during non-power-supply and lighting. .

さらに、本発明のＧ形ＬＥＤ信号電球にあっては（解決手段３）、フューズが切れれば、故障検知し、ＬＥＤ灯をそのまま使用せず交換するので、バリスタの回線により発光ダイオードを保護することができる。   Further, in the G-type LED signal light bulb of the present invention (Solution means 3), if the fuse blows, the failure is detected and the LED lamp is replaced without being used as it is, so that the light-emitting diode is protected by the varistor circuit. be able to.

また、本発明のＧ形ＬＥＤ信号電球にあっては（解決手段４）、正方向半波整流部の発光ダイオードと逆方向半波整流部の発光ダイオードとを近接配置したことにより、点灯ちらつきが上述の時間面だけでなく空間面からも防止される。   Further, in the G-type LED signal light bulb of the present invention (Solution means 4), the flickering of lighting is caused by arranging the light emitting diodes of the forward half-wave rectifying unit and the light emitting diodes of the reverse half-wave rectifying unit close to each other. This is prevented not only from the time aspect described above but also from the space aspect.

また、本発明のＧ形ＬＥＤ信号電球にあっては（解決手段５）、直列接続された複数の発光ダイオードを電流が通過するようにしたことにより、一部の発光ダイオードの短絡故障の影響が局所にとどまるので、致命的な短絡故障の発生頻度が極めて小さくなる。   Further, in the G-type LED signal bulb of the present invention (Solution 5), the current passes through a plurality of light emitting diodes connected in series, so that the short circuit failure of some light emitting diodes is affected. Since it stays locally, the frequency of fatal short-circuit faults becomes extremely small.

本発明の実施例１について、Ｇ形ＬＥＤ信号電球の構造を示し、（ａ）が電球単体の回路図、（ｂ）が発光部における発光ダイオードの配置図である。The structure of a G type LED signal bulb is shown about Example 1 of the present invention, (a) is a circuit diagram of a single bulb, and (b) is an arrangement figure of a light emitting diode in a light emission part. 多灯形色灯信号機における２灯直列点灯の部分に係る回路図である。It is a circuit diagram which concerns on the part of 2 lamp | ramp serial lighting in a multi-lamp type color lamp signal apparatus. 本発明の実施例２について、発光ダイオードの配置図である。It is an arrangement plan of a light emitting diode about Example 2 of the present invention. 従来のＧ形ＬＥＤ信号電球について、（ａ）が電球単体の回路図、（ｂ）が詳細な回路図、（ｃ）が多灯形色灯信号機における２灯直列点灯の部分に係る回路図である。(A) is a circuit diagram of a single light bulb, (b) is a detailed circuit diagram, and (c) is a circuit diagram relating to a two-lamp series lighting part in a multi-lamp type color lamp traffic light. is there.

このような本発明のＧ形ＬＥＤ信号電球について、これを実施するための具体的な形態を、以下の実施例１〜２により説明する。
図１〜２に示した実施例１は、上述した解決手段１〜５（出願当初の請求項１〜５）を総て具現化したものであり、図３に示した実施例２は、その変形例である。 About the G form LED signal bulb | ball of this invention, the specific form for implementing this is demonstrated by the following Examples 1-2.
The embodiment 1 shown in FIGS. 1 and 2 embodies all the above-described solving means 1 to 5 (claims 1 to 5 as originally filed), and the embodiment 2 shown in FIG. It is a modification.

本発明のＧ形ＬＥＤ信号電球の実施例１について、その具体的な構成を、図面を引用して説明する。図１は、（ａ）が単体のＧ形ＬＥＤ信号電球１０に係る回路図、（ｂ）が発光部１１，１２における発光ダイオードＭ１〜Ｍ４，Ｓ１〜Ｓ４の配置図である。   About the Example 1 of the G type LED signal bulb of this invention, the specific structure is demonstrated referring drawings. 1A is a circuit diagram relating to a single G-shaped LED signal bulb 10, and FIG. 1B is a layout diagram of light emitting diodes M1 to M4 and S1 to S4 in the light emitting units 11 and 12. FIG.

このＧ形ＬＥＤ信号電球１０は、鉄道のＧ形信号電球と取付互換性のある主端子Ｍと副端子Ｓと共通端子Ｃとを有するソケットと、主端子Ｍと共通端子Ｃとを介する交流の給電に応じて発光する複数の発光ダイオードＭ１〜Ｍ４を有する主発光部１１と、副端子Ｓと共通端子Ｃとを介する交流の給電に応じて発光する複数の発光ダイオードＳ１〜Ｓ４とを備えていて、鉄道用の多灯形色灯信号機に装着しうるようになっている点で、既述したＧ形ＬＥＤ信号電球４０と同様のものであるが、以下に述べる点では相違している。   This G-type LED signal light bulb 10 is a socket having a main terminal M, a sub-terminal S, and a common terminal C that are compatible with the G-type signal light bulb of a railway, and an alternating current through the main terminal M and the common terminal C. A main light emitting unit 11 having a plurality of light emitting diodes M1 to M4 that emit light in response to power supply, and a plurality of light emitting diodes S1 to S4 that emit light in response to alternating current power supply through the sub terminal S and the common terminal C are provided. Thus, it is the same as the G-type LED signal light bulb 40 described above in that it can be mounted on a multi-lamp color lamp signal device for railways, but is different in the following points.

すなわち、Ｇ形ＬＥＤ信号電球１０は、主発光部１１について、その発光ダイオードＭ１〜Ｍ４が、主端子Ｍと共通端子Ｃとを介して給電された交流を半波整流しながら主端子Ｍから共通端子Ｃへ向かう電流だけを通過させて発光する発光ダイオードＭ３〜Ｍ４からなる正方向半波整流部と、その交流を半波整流しながら共通端子Ｃから来て主端子Ｍへ去る電流だけを通過させて発光する発光ダイオードＭ１〜Ｍ２からなる逆方向半波整流部とに分かれている点で、従来のＧ形ＬＥＤ信号電球４０と相違する。   That is, the G-type LED signal light bulb 10 is common to the main light emitting unit 11 from the main terminal M while the light emitting diodes M1 to M4 are half-wave rectifying the alternating current fed through the main terminal M and the common terminal C. A forward half-wave rectification unit composed of light-emitting diodes M3 to M4 that emit light by passing only a current directed to the terminal C, and only a current coming from the common terminal C and leaving the main terminal M while half-wave rectifying the alternating current. It is different from the conventional G-type LED signal light bulb 40 in that it is divided into a reverse half-wave rectification unit composed of light-emitting diodes M1 and M2 that emit light.

また、Ｇ形ＬＥＤ信号電球１０は、副発光部１２について、その発光ダイオードＳ１〜Ｓ４が、副端子Ｓと共通端子Ｃとを介して給電された交流を半波整流しながら副端子Ｓから共通端子Ｃへ向かう電流だけを通過させて発光する発光ダイオードＳ３〜Ｓ４からなる正方向半波整流部と、その交流を半波整流しながら共通端子Ｃから来て副端子Ｓへ去る電流だけを通過させて発光する発光ダイオードＳ１〜Ｓ２からなる逆方向半波整流部とに分かれている点でも、従来のＧ形ＬＥＤ信号電球４０と相違する。   Further, the G-type LED signal light bulb 10 is common to the sub-light emitting unit 12 from the sub-terminal S while the light-emitting diodes S <b> 1 to S <b> 4 rectify the alternating current fed through the sub-terminal S and the common terminal C by half-wave rectification. A positive direction half-wave rectification unit composed of light-emitting diodes S3 to S4 that emit light by passing only a current directed to the terminal C, and only a current that comes from the common terminal C and leaves the sub-terminal S while half-wave rectifying the alternating current. It is also different from the conventional G-type LED signal light bulb 40 in that it is divided into a reverse half-wave rectification unit composed of light-emitting diodes S1 and S2 that emit light.

さらに、Ｇ形ＬＥＤ信号電球１０は、それらの発光ダイオードＭ１〜Ｍ４，Ｓ１〜Ｓ４のみによって主発光部１１でも副発光部１２でも全波整流が行われるようになっていて、整流回路４２や整流回路４５のような全波整流専用回路がもはや存在しない点でも、従来のＧ形ＬＥＤ信号電球４０と相違する。
そのようなＧ形ＬＥＤ信号電球１０について、図示した実用的で具体的な回路構成例を述べると、以下のようになっている。 Further, the G-type LED signal light bulb 10 is configured such that full-wave rectification is performed only in the light emitting diodes M1 to M4 and S1 to S4 in both the main light emitting unit 11 and the sub light emitting unit 12, and the rectifying circuit 42 and the rectifying circuit are rectified. It is different from the conventional G-type LED signal light bulb 40 in that a full-wave rectification dedicated circuit such as the circuit 45 no longer exists.
Regarding such a G-type LED signal bulb 10, an example of a practical and specific circuit configuration shown in the drawing is as follows.

主発光部１１は、メインフィラメントに似せて細長いワンチップＩＣに纏められ、その長手方向に等ピッチで一列に発光ダイオードＭ１〜Ｍ４がその順で並べられて、逆方向半波整流部の発光ダイオードＭ１〜Ｍ２と正方向半波整流部の発光ダイオードＭ３〜Ｍ４とが近接配置されたものとなっている。また、ワイヤボンディング等の配線接続にて、逆方向半波整流部の発光ダイオードＭ１〜Ｍ２が順方向を同じに揃えて直列接続され、正方向半波整流部の発光ダイオードＭ３〜Ｍ４も順方向を同じに揃えて直列接続されて、正方向半波整流部と逆方向半波整流部が何れも複数の発光ダイオードの直列接続を含んでいて、電流が複数の発光ダイオードを通過するものとなっている。   The main light emitting unit 11 is combined into a long and narrow one-chip IC similar to the main filament, and the light emitting diodes M1 to M4 are arranged in a line at an equal pitch in the longitudinal direction, and the light emitting diodes of the reverse half wave rectifying unit M1 and M2 and light emitting diodes M3 to M4 of the positive half-wave rectification unit are arranged close to each other. Further, the light-emitting diodes M1 to M2 of the reverse half-wave rectification unit are connected in series with the same forward direction by wiring connection such as wire bonding, and the light-emitting diodes M3 to M4 of the positive half-wave rectification unit are also forward direction. The forward half-wave rectification unit and the reverse half-wave rectification unit both include a series connection of a plurality of light-emitting diodes, and the current passes through the plurality of light-emitting diodes. ing.

また、逆方向半波整流部の発光ダイオードＭ１〜Ｍ２はアノードが共通端子Ｃに接続されカソードが抵抗Ｒ１の一端に接続され、抵抗Ｒ１の他端がツェナーダイオードＺＤ１のカソードに接続され、ツェナーダイオードＺＤ１のアノードが主端子Ｍに接続されている。さらに、正方向半波整流部の発光ダイオードＭ３〜Ｍ４はカソードが共通端子Ｃに接続されアノードが抵抗Ｒ２の一端に接続され、抵抗Ｒ２の他端がツェナーダイオードＺＤ２のアノードに接続され、ツェナーダイオードＺＤ２のカソードが主端子Ｍに接続されている。これにより、正方向半波整流部と逆方向半波整流部の何れにもツェナーダイオードが逆向きで直列接続されていて、低電圧の電流通過を阻止するものとなっている。   Further, the light emitting diodes M1 to M2 of the reverse half-wave rectification unit have an anode connected to the common terminal C, a cathode connected to one end of the resistor R1, and the other end connected to the cathode of the Zener diode ZD1, The anode of ZD1 is connected to the main terminal M. Further, the light emitting diodes M3 to M4 of the positive half-wave rectification unit have a cathode connected to the common terminal C, an anode connected to one end of the resistor R2, and the other end of the resistor R2 connected to the anode of the Zener diode ZD2. The cathode of ZD2 is connected to the main terminal M. Thus, a Zener diode is connected in series in the reverse direction to both the forward half-wave rectification unit and the reverse half-wave rectification unit to prevent low-voltage current passage.

副発光部１２も、メインフィラメントに似せて細長いワンチップＩＣに纏められ、その長手方向に等ピッチで一列に発光ダイオードＳ１〜Ｓ４がその順で並べられて、逆方向半波整流部の発光ダイオードＳ１〜Ｓ２と正方向半波整流部の発光ダイオードＳ３〜Ｓ４とが近接配置されたものとなっている。また、ワイヤボンディング等の配線接続にて、逆方向半波整流部の発光ダイオードＳ１〜Ｓ２が順方向を同じに揃えて直列接続され、正方向半波整流部の発光ダイオードＳ３〜Ｓ４も順方向を同じに揃えて直列接続されて、正方向半波整流部と逆方向半波整流部が何れも複数の発光ダイオードの直列接続を含んでいて、電流が複数の発光ダイオードを通過するものとなっている。   The sub-light emitting unit 12 is also integrated into an elongated one-chip IC similar to the main filament, and the light-emitting diodes S1 to S4 are arranged in a line at an equal pitch in the longitudinal direction, and the light-emitting diode of the reverse half-wave rectifying unit S1-S2 and the light emitting diodes S3-S4 of the positive direction half-wave rectification unit are arranged close to each other. In addition, in the wiring connection such as wire bonding, the light emitting diodes S1 to S2 of the reverse half wave rectification unit are connected in series with the same forward direction, and the light emitting diodes S3 to S4 of the positive direction half wave rectification unit are also forward direction. The forward half-wave rectification unit and the reverse half-wave rectification unit both include a series connection of a plurality of light-emitting diodes, and the current passes through the plurality of light-emitting diodes. ing.

また、逆方向半波整流部の発光ダイオードＳ１〜Ｓ２はアノードが共通端子Ｃに接続されカソードが抵抗Ｒ３の一端に接続され、抵抗Ｒ３の他端がツェナーダイオードＺＤ３のカソードに接続され、ツェナーダイオードＺＤ３のアノードが副端子Ｓに接続されている。さらに、正方向半波整流部の発光ダイオードＳ３〜Ｓ４はカソードが共通端子Ｃに接続されアノードが抵抗Ｒ４の一端に接続され、抵抗Ｒ４の他端がツェナーダイオードＺＤ４のアノードに接続され、ツェナーダイオードＺＤ４のカソードが副端子Ｓに接続されている。これにより、正方向半波整流部と逆方向半波整流部の何れにもツェナーダイオードが逆向きで直列接続されていて、低電圧の電流通過を阻止するものとなっている。   Further, the light emitting diodes S1 to S2 of the reverse half-wave rectification unit have an anode connected to the common terminal C, a cathode connected to one end of the resistor R3, and the other end of the resistor R3 connected to the cathode of the Zener diode ZD3. The anode of ZD3 is connected to the subterminal S. Further, the light emitting diodes S3 to S4 of the positive direction half-wave rectification unit have a cathode connected to the common terminal C, an anode connected to one end of the resistor R4, and the other end connected to the anode of the Zener diode ZD4. The cathode of ZD4 is connected to the subterminal S. Thus, a Zener diode is connected in series in the reverse direction to both the forward half-wave rectification unit and the reverse half-wave rectification unit to prevent low-voltage current passage.

ここで、抵抗Ｒ１，Ｒ２，Ｒ３，Ｒ４は、それぞれ、半波整流部の発光ダイオードＭ１〜Ｍ２，Ｍ３〜Ｍ４，Ｓ１〜Ｓ２，Ｓ３〜Ｓ４に流れる電流値を制限するものであり、給電電圧や発光ダイオードの発光特性に基づいて適宜な抵抗値のものが選定され回路に組み込まれている。また、ツェナーダイオードＺＤ１，ＺＤ２，ＺＤ３，ＺＤ４は、主端子Ｍや副端子Ｓと共通端子Ｃとの間に点灯制御用の給電電圧が印加されない滅灯時にケーブル誘起ノイズ等で発光ダイオードＭ１〜Ｍ４，Ｓ１〜Ｓ４が不所望に発光するのを阻止するものであるが、給電による本来の通電時間を削りすぎないよう点灯制御用の給電電圧のピーク電圧より降伏電圧の十分に低いものが選定され回路に組み込まれている。   Here, the resistors R1, R2, R3, and R4 limit the current value flowing through the light emitting diodes M1 to M2, M3 to M4, S1 to S2, and S3 to S4 of the half-wave rectifying unit, respectively. In addition, an appropriate resistance value is selected based on the light emission characteristics of the light emitting diode and incorporated in the circuit. Further, the Zener diodes ZD1, ZD2, ZD3, and ZD4 are light emitting diodes M1 to M4 due to cable-induced noise or the like when the power supply voltage for lighting control is not applied between the main terminal M or the sub terminal S and the common terminal C. , S1 to S4 are prevented from emitting light undesirably, but those having a breakdown voltage sufficiently lower than the peak voltage of the power supply voltage for lighting control are selected so as not to reduce the original energization time by power supply. Built into the circuit.

さらに、バリスタＶ１とフューズＦ１とを直列接続したものが、主端子Ｍと共通端子Ｃとに介挿接続されて、主発光部１１及び付加部材Ｒ１，ＺＤ１，Ｒ２，ＺＤ２に対して並列接続状態になっている。また、バリスタＶ２とフューズＦ２とを直列接続したものが、副端子Ｓと共通端子Ｃとに介挿接続されて、副発光部１２及び付加部材Ｒ３，ＺＤ３，Ｒ４，ＺＤ４に対して並列接続状態になっている。これにより、発光ダイオードのみによって全波整流が行われるようになった主発光部１１も副発光部１２も、高電圧の電流を通過させるバリスタとこのバリスタの短絡故障時に溶断するフューズとを直列接続したものが並列接続されたものとなっている。   Further, the varistor V1 and the fuse F1 connected in series are inserted and connected to the main terminal M and the common terminal C, and are connected in parallel to the main light emitting unit 11 and the additional members R1, ZD1, R2, and ZD2. It has become. The varistor V2 and the fuse F2 connected in series are inserted and connected to the sub-terminal S and the common terminal C, and are connected in parallel to the sub-light emitting unit 12 and the additional members R3, ZD3, R4, and ZD4. It has become. As a result, the main light-emitting unit 11 and the sub-light-emitting unit 12 in which full-wave rectification is performed only by the light-emitting diodes are connected in series with a varistor that allows a high-voltage current to pass through and a fuse that blows when this varistor is short-circuited. Are connected in parallel.

バリスタＶ１，Ｖ２は、雷や高圧静電気放電などに起因してケーブル等に誘起したサージ電圧から発光ダイオードＭ１〜Ｍ４，Ｓ１〜Ｓ４を保護するものであり、発光ダイオードの直列接続Ｍ１〜Ｍ２，Ｍ３〜Ｍ４，Ｓ１〜Ｓ２，Ｓ３〜Ｓ４の耐圧より降伏電圧の低いものが選定されるが、給電による本来の通電を妨げないよう点灯制御用の給電電圧のピーク電圧より降伏電圧の高いものの中から選定され、両条件を満たして選定されたものが回路に組み込まれている。   The varistors V1 and V2 protect the light emitting diodes M1 to M4 and S1 to S4 from a surge voltage induced in a cable or the like due to lightning or high-voltage electrostatic discharge. The light emitting diodes M1 to M2 and M3 are connected in series. ~ M4, S1 to S2, S3 to S4 with a breakdown voltage lower than the withstand voltage are selected, but the breakdown voltage is higher than the peak voltage of the power supply voltage for lighting control so as not to disturb the original energization by power supply. Selected and fulfilled both conditions are included in the circuit.

この実施例１のＧ形ＬＥＤ信号電球１０について、その使用態様及び動作を、図面を引用して説明する。
図２は、多灯形色灯信号機における２灯直列点灯の部分に係る回路図である。 The use mode and operation of the G-shaped LED signal bulb 10 of the first embodiment will be described with reference to the drawings.
FIG. 2 is a circuit diagram relating to a two-lamp series lighting portion in a multi-lamp color lamp traffic light.

Ｇ形ＬＥＤ信号電球１０は、Ｇ形のフィラメント信号電球や既述のＧ形ＬＥＤ信号電球４０を装着して使用できるところであれば代替可能であり、多灯形色灯信号機には複数個装着され、２灯直列点灯される黄色灯Ｙ１，Ｙ２にもそれぞれＧ形ＬＥＤ信号電球１０が装着される。その際、多灯形色灯信号機に設けられていた電圧平衡器Ｌは、取り外したり改造する必要はなく、そのまま主端子Ｍや副端子Ｓに接続しておけば、２灯直列点灯に係る片断線時の不正現示を防止するのに役立つ。   The G-type LED signal light bulb 10 can be replaced if it can be used with the G-type filament signal light bulb or the G-type LED signal light bulb 40 described above. The G-shaped LED signal bulb 10 is also mounted on each of the two yellow lamps Y1 and Y2 that are lit in series. At that time, the voltage balance L provided in the multi-lamp color lamp traffic light does not need to be removed or modified. Helps to prevent fraudulent indications at line time.

詳述すると、先ず正常状態では、主端子Ｍ及び副端子Ｓと共通端子Ｃとの間に点灯制御のために交流の給電電圧が印加されると、主端子Ｍ及び副端子Ｓから共通端子Ｃへ順方向の電圧が印加される半周期のときだけ正方向半波整流部の発光ダイオードＭ３〜Ｍ４と正方向半波整流部の発光ダイオードＳ３〜Ｓ４が導通して間欠的に発光し、主端子Ｍ及び副端子Ｓから共通端子Ｃへ逆方向の電圧が印加される残りの半周期のときだけ即ち共通端子Ｃから主端子Ｍ及び副端子Ｓへ順方向の電圧が印加される残りの半周期のときだけ逆方向半波整流部の発光ダイオードＭ１〜Ｍ２と逆方向半波整流部の発光ダイオードＳ１〜Ｓ２が導通して間欠的に発光する。こうして、主発光部１１も副発光部１２も全波整流時と同じ周期で発光するので、Ｇ形ＬＥＤ信号電球１０は、ちらつかずに点灯する。   More specifically, first, in a normal state, when an AC power supply voltage is applied between the main terminal M and the sub terminal S and the common terminal C for lighting control, the main terminal M and the sub terminal S are connected to the common terminal C. The light emitting diodes M3 to M4 of the positive direction half-wave rectification unit and the light emitting diodes S3 to S4 of the positive direction half-wave rectification unit are electrically connected to each other and emit light intermittently only in a half cycle in which a forward voltage is applied. Only in the remaining half period in which a reverse voltage is applied from the terminal M and the sub terminal S to the common terminal C, that is, the remaining half in which a forward voltage is applied from the common terminal C to the main terminal M and the sub terminal S. Only during the period, the light-emitting diodes M1 and M2 of the reverse half-wave rectification unit and the light-emitting diodes S1 and S2 of the reverse half-wave rectification unit conduct and emit light intermittently. Thus, since the main light-emitting unit 11 and the sub-light-emitting unit 12 emit light at the same cycle as that during full-wave rectification, the G-shaped LED signal bulb 10 is lit without flickering.

次に、何れかの発光ダイオードが故障した場合、例えば黄色灯Ｙ２のＧ形ＬＥＤ信号電球１０の主発光部１１の逆方向半波整流部の発光ダイオードＭ１〜Ｍ２がオープン故障して発光しなくなった場合、その故障に伴って黄色灯Ｙ１のＧ形ＬＥＤ信号電球１０の主発光部１１の同方向の発光ダイオードＭ３〜Ｍ４への電流も流れなくなり、黄色灯Ｙ２とＹ１の発光量も同じになる。この場合、電圧平衡器の特性上、Ｇ形ＬＥＤ電球Ｙ１のＭ端子→電圧平衡器ＬのＬ２端子→同Ｎ端子→Ｌ１端子→Ｇ形ＬＥＤ電球Ｙ１のＳ端子へのインピーダンスはハイインピーダンスとなるので、この経路では電流が流れず、Ｇ形ＬＥＤ電球１１の副発光部の電流には影響を及ぼさない。したがって、一方が光量低下したとき他方も光量が同じように低下し、一方だけが正常の光量となる現示、いわゆる錯誤現示となる障害を防ぐことができる。   Next, when one of the light emitting diodes fails, for example, the light emitting diodes M1 to M2 of the reverse half-wave rectifying unit of the main light emitting unit 11 of the G-shaped LED signal bulb 10 of the yellow light Y2 open and fail to emit light. In this case, the current does not flow to the light emitting diodes M3 to M4 in the same direction of the main light emitting portion 11 of the G-shaped LED signal bulb 10 of the yellow lamp Y1, and the light emission amounts of the yellow lamps Y2 and Y1 are the same. Become. In this case, due to the characteristics of the voltage balancer, the impedance from the M terminal of the G-type LED bulb Y1 to the L2 terminal of the voltage balancer L → the N terminal → the L1 terminal → the S terminal of the G-type LED bulb Y1 becomes high impedance. Therefore, no current flows in this path, and the current of the sub-light emitting portion of the G-type LED bulb 11 is not affected. Accordingly, when one of the light quantity decreases, the other light quantity also decreases in the same way, and it is possible to prevent a failure that is a normal light quantity, that is, a so-called error display.

なお、黄色灯Ｙ１，Ｙ２のＧ形ＬＥＤ信号電球１０の主端子Ｍ及び副端子Ｓと共通端子Ｃとの間に給電電圧が印加されないときには、例えば給電電圧の３０Ｖより低い５Ｖや３Ｖといった降伏電圧のツェナーダイオードＺＤ１〜ＺＤ４が発光部１１，１２に組み合わされているとして、例え外来ノイズがケーブル等を介してＧ形ＬＥＤ信号電球１０に到達したとしても、そのノイズの電圧レベルがツェナーダイオードＺＤ１〜ＺＤ４の上記降伏電圧を超えない限り、Ｇ形ＬＥＤ信号電球１０が誤点灯することはない。   In addition, when a feeding voltage is not applied between the main terminal M and the sub terminal S of the G-shaped LED signal bulb 10 of the yellow lamps Y1 and Y2 and the common terminal C, for example, a breakdown voltage such as 5 V or 3 V lower than 30 V of the feeding voltage. Assuming that the Zener diodes ZD1 to ZD4 are combined with the light emitting units 11 and 12, even if external noise reaches the G-type LED signal light bulb 10 via a cable or the like, the voltage level of the noise becomes the Zener diodes ZD1 to ZD1. As long as the breakdown voltage of ZD4 is not exceeded, the G-type LED signal bulb 10 will not light up erroneously.

また、落雷などに起因して数千Ｖや数百Ｖといったサージ電圧がケーブル等に誘起されて、それが黄色灯Ｙ１，Ｙ２のＧ形ＬＥＤ信号電球１０にまで飛来したような場合、例えば給電電圧の３０Ｖより高いが発光ダイオードの直列接続部Ｍ１〜Ｍ２，Ｍ３〜Ｍ４，Ｓ１〜Ｓ２，Ｓ３〜Ｓ４の耐圧７０Ｖより低い６０Ｖといった降伏電圧のバリスタＶ１，Ｖ２が発光部１１，１２に並列接続状態で組み合わされていることから、サージ電流の大部分がバリスタＶ１，Ｖ２にてバイパスされるので、主発光部１１も、副発光部１２も、過大なサージ電流やサージ電圧に曝されることがなく、安全に保護される。   Further, when a surge voltage such as several thousand volts or several hundred volts is induced in a cable or the like due to a lightning strike or the like, and it reaches the G-shaped LED signal bulb 10 of the yellow lamps Y1 and Y2, for example, power supply The varistors V1 and V2 having a breakdown voltage of 60V which is higher than the voltage 30V but lower than the withstand voltage 70V of the series connection parts M1 to M2, M3 to M4, S1 to S2 and S3 to S4 of the light emitting diodes are connected to the light emitting parts 11 and 12 in parallel. Since most of the surge current is bypassed by the varistors V1 and V2, the main light emitting unit 11 and the sub light emitting unit 12 are exposed to an excessive surge current or surge voltage. There is no protection.

さらに、サージが過大な場合にはバリスタＶ１，Ｖ２が損傷して短絡故障することもありうるが、バリスタＶ１，Ｖ２がショートするとフューズＦ１，Ｆ２に大きな電流が流れてフューズＦ１，Ｆ２が溶断する。これにより、バリスタＶ１，Ｖ２による短絡故障・ショート故障がフューズＦ１，Ｆ２によって断線故障・オープン故障に故障モード変換されるので、２灯直列点灯時には、電圧平衡器Ｌの２灯通電量バランス機能・不正現示防止機能がより的確に活用されて、視認性の低下が抑制される。   Further, if the surge is excessive, the varistors V1 and V2 may be damaged and a short circuit failure may occur. However, if the varistors V1 and V2 are short-circuited, a large current flows through the fuses F1 and F2 and the fuses F1 and F2 are blown. . As a result, the short-circuit failure / short-circuit failure caused by the varistors V1 and V2 is converted into a failure mode / open failure by the fuses F1 and F2. The fraud display prevention function is more appropriately used, and the deterioration of visibility is suppressed.

本発明のＧ形ＬＥＤ信号電球の実施例２について、その具体的な構成を、図面を引用して説明する。図３は、主発光部１１における発光ダイオードＭ１〜Ｍ４と副発光部１２における発光ダイオードＳ１〜Ｓ４とに係る別の配置例を示している。   A specific configuration of the G-type LED signal bulb according to the second embodiment of the present invention will be described with reference to the drawings. FIG. 3 shows another arrangement example relating to the light emitting diodes M1 to M4 in the main light emitting unit 11 and the light emitting diodes S1 to S4 in the sub light emitting unit 12.

このＧ形ＬＥＤ信号電球が上述した実施例１のものと相違するのは、発光部１１，１２における発光ダイオードＭ１〜Ｍ４，Ｓ１〜Ｓ４の並び順が各部毎に入れ替わって発光ダイオードの配置において正方向半波整流部と正方向半波整流部とが入り交じっている点である。具体的には、主発光部１１では、発光ダイオードＭ１〜Ｍ４の電気的な接続関係を変更することなく配置だけが変更されて、複数の発光ダイオードが左から右へ逆方向半波整流部の発光ダイオードＭ１，正方向半波整流部の発光ダイオードＭ３，逆方向半波整流部の発光ダイオードＭ２，正方向半波整流部の発光ダイオードＭ４の順に並んでいる。   This G-type LED signal light bulb is different from that of the first embodiment described above in that the arrangement order of the light-emitting diodes M1 to M4 and S1 to S4 in the light-emitting units 11 and 12 is changed for each unit and the arrangement of the light-emitting diodes is correct. The directional half-wave rectification unit and the positive-direction half-wave rectification unit are mixed. Specifically, in the main light emitting unit 11, only the arrangement is changed without changing the electrical connection relationship of the light emitting diodes M <b> 1 to M <b> 4, so that the plurality of light emitting diodes of the reverse half-wave rectifying unit are changed from left to right. The light emitting diode M1, the light emitting diode M3 in the forward half-wave rectifier, the light emitting diode M2 in the reverse half-wave rectifier, and the light-emitting diode M4 in the forward half-wave rectifier are arranged in this order.

また、副発光部１２では左から右へ正方向半波整流部の発光ダイオードＳ３，逆方向半波整流部の発光ダイオードＳ１，正方向半波整流部の発光ダイオードＳ４，逆方向半波整流部の発光ダイオードＳ２がその順に並んでいる。このような部材配置にあっては、各発光部において正方向半波整流部の発光ダイオードと正方向半波整流部の発光ダイオードとが交互になっているばかりか、主発光部１１と副発光部１２との間でも正方向半波整流部の発光ダイオードと正方向半波整流部の発光ダイオードとが交互になっている。
そのため、個々の発光ダイオードが交流半波発光であっても、Ｇ形ＬＥＤ信号電球１０の点灯状態については、ちらつきが感じられない。 Further, in the sub-light-emitting unit 12, from left to right, the light-emitting diode S3 of the forward half-wave rectifier, the light-emitting diode S1 of the reverse half-wave rectifier, the light-emitting diode S4 of the forward half-wave rectifier, and the reverse half-wave rectifier. The light emitting diodes S2 are arranged in that order. In such a member arrangement, the light emitting diodes of the positive direction half-wave rectifying unit and the light emitting diodes of the positive direction half-wave rectifying unit are alternately arranged in each light emitting unit, and the main light emitting unit 11 and the sub-light emitting unit. The light-emitting diodes of the positive direction half-wave rectification unit and the light-emitting diodes of the positive direction half-wave rectification unit are alternately arranged with the unit 12.
Therefore, even if each light-emitting diode is AC half-wave light emission, no flickering is felt in the lighting state of the G-type LED signal bulb 10.

本発明のＧ形ＬＥＤ信号電球は、鉄道用の多灯形色灯信号機において２灯直列点灯される場合を念頭に改良されたものであるが、２灯直列点灯の場合に使用が限定される訳でなく、Ｇ形信号電球の使用されるところであればどこでも使用することができる。   The G-type LED signal light bulb of the present invention has been improved in consideration of the case where two lamps are lit in series in a railway multi-lamp color lamp signal device, but the use is limited to the case of two lamps lit in series. It can be used wherever a G-shaped signal bulb is used.

１０…Ｇ形ＬＥＤ信号電球、
１１…主発光部、１２…副発光部、
Ｃ…共通端子（コモン端子）、
Ｍ…主端子（メインフィラメント端子）、
Ｓ…副端子（サブフィラメント端子）、
Ｍ１〜Ｍ２…発光ダイオード（逆方向半波整流部）、
Ｍ３〜Ｍ４…発光ダイオード（正方向半波整流部）、
Ｓ１〜Ｓ２…発光ダイオード（逆方向半波整流部）、
Ｓ３〜Ｓ４…発光ダイオード（正方向半波整流部）、
ＺＤ１〜ＺＤ４…ツェナーダイオード、Ｒ１〜Ｒ４…抵抗、
Ｖ１，Ｖ２…バリスタ、Ｆ１，Ｆ２…フューズ、
４０…Ｇ形ＬＥＤ信号電球、
４１…トランス、４２…整流回路、４３…主発光部、
４４…トランス、４５…整流回路、４６…副発光部、
Ｙ１，Ｙ２…黄色灯、Ｌ…電圧平衡器 10 ... G-shaped LED signal bulb,
11 ... main light emitting part, 12 ... sub light emitting part,
C: Common terminal (common terminal),
M ... main terminal (main filament terminal),
S: Sub-terminal (sub-filament terminal),
M1 to M2 ... Light emitting diode (reverse direction half-wave rectification unit),
M3 to M4 ... Light-emitting diode (positive-direction half-wave rectifier),
S1-S2 ... Light-emitting diode (reverse half-wave rectification unit),
S3 to S4: Light-emitting diode (positive-direction half-wave rectification unit),
ZD1 to ZD4 ... Zener diodes, R1 to R4 ... resistors,
V1, V2 ... Varistor, F1, F2 ... Fuse,
40 ... G-shaped LED signal bulb,
41 ... Transformer, 42 ... Rectifier circuit, 43 ... Main light emitting part,
44 ... Transformer, 45 ... Rectifier circuit, 46 ... Sub-light emitting unit,
Y1, Y2 ... Yellow light, L ... Voltage balancer

Claims (1)

鉄道のＧ形信号電球と取付互換性のある主端子と副端子と共通端子と、前記主端子と前記共通端子とを介する交流の給電に応じて発光する複数の発光ダイオードを有する主発光部と、前記副端子と前記共通端子とを介する交流の給電に応じて発光する複数の発光ダイオードを有する副発光部とを備えたＧ形ＬＥＤ信号電球において、
前記主発光部および前記副発光部のうち何れか一方または双方における複数の発光ダイオードが、給電された交流を半波整流しながら前記共通端子へ向かう電流を通過させて発光する正方向半波整流部と、その交流を半波整流しながら前記共通端子から来る電流を通過させて発光する逆方向半波整流部とに分かれており、これらの発光ダイオードのみによって全波整流が行われるようになっており、
前記正方向半波整流部と前記逆方向半波整流部の何れにもツェナーダイオードが逆向きで直列接続されていて、点灯制御用の正常な給電電圧による電流は前記発光ダイオードを通過させるが低電圧の電流通過を阻止するようになっていることを特徴とするＧ形ＬＥＤ信号電球。 A main light-emitting part having a plurality of light-emitting diodes that emit light in response to alternating current feeding via the main terminal and the common terminal; In the G-shaped LED signal bulb comprising a sub-light-emitting unit having a plurality of light-emitting diodes that emit light in response to alternating current feeding through the sub-terminal and the common terminal,
A forward half wave rectification in which a plurality of light emitting diodes in one or both of the main light emitting unit and the sub light emitting unit emit light by passing a current toward the common terminal while half-wave rectifying the supplied alternating current. And a reverse half-wave rectifier that emits light by passing current from the common terminal while half-wave rectifying the alternating current, and full-wave rectification is performed only by these light-emitting diodes. and,
A Zener diode is connected in series in both the forward half-wave rectification unit and the reverse half-wave rectification unit in the reverse direction, and a current due to a normal power supply voltage for lighting control passes through the light-emitting diode. G-type LED signal bulbs you characterized in that it is adapted to prevent the passage of current voltage.
JP2010067035A 2010-03-23 2010-03-23 G-shaped LED signal bulb Active JP5484144B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010067035A JP5484144B2 (en) 2010-03-23 2010-03-23 G-shaped LED signal bulb

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010067035A JP5484144B2 (en) 2010-03-23 2010-03-23 G-shaped LED signal bulb

Publications (2)

Publication Number Publication Date
JP2011195121A JP2011195121A (en) 2011-10-06
JP5484144B2 true JP5484144B2 (en) 2014-05-07

Family

ID=44873842

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010067035A Active JP5484144B2 (en) 2010-03-23 2010-03-23 G-shaped LED signal bulb

Country Status (1)

Country Link
JP (1) JP5484144B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6012224B2 (en) * 2012-03-30 2016-10-25 大同信号株式会社 Railway signal bulb tester
JP6217096B2 (en) * 2013-03-14 2017-10-25 株式会社リコー High voltage inverter, dielectric barrier discharge generator and sheet material reformer
JP6246688B2 (en) * 2014-02-27 2017-12-13 公益財団法人鉄道総合技術研究所 Railway light-emitting device control apparatus, railway light-emitting device, railway light-emitting device control system, and visual confirmation system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59226401A (en) * 1983-06-06 1984-12-19 株式会社東芝 Light emitting display device
DE19627475C2 (en) * 1996-07-08 2000-12-07 Siemens Ag Circuit arrangement for signaling devices in road traffic systems
JP2004088857A (en) * 2002-08-23 2004-03-18 Tohoku Ricoh Co Ltd Input overvoltage protection circuit and electric equipment comprising the same
JP4471683B2 (en) * 2004-03-04 2010-06-02 大同信号株式会社 LED signal bulb and color light signal
JP2009038247A (en) * 2007-08-02 2009-02-19 Mitsubishi Electric Corp Arrangement for lighting led devices

Also Published As

Publication number Publication date
JP2011195121A (en) 2011-10-06

Similar Documents

Publication Publication Date Title
AU2008264218B2 (en) LEDs tricolor power signal
JP6058828B2 (en) LED lamp with safety module for safe operation on various ballasts
US20040042205A1 (en) Circuit for illuminator
KR101226553B1 (en) LED lamp
US8773023B2 (en) LED traffic signal with synchronized power pulse circuit
US20070018594A1 (en) Holiday light string devices
JP5484144B2 (en) G-shaped LED signal bulb
US20060103320A1 (en) Holiday Light String Devices
US9635717B2 (en) LED lamp
US20070075646A1 (en) Series wired light string with unidirectional shunts
US20090129077A1 (en) Series-wired led light string with unidirectional shunts
JP2013031350A (en) Led light source turn-on device
CN108702835B (en) Power supply device, illumination lamp, and illumination device
US9713236B1 (en) Solid-state lighting arrangement with startup delay circuit
US7339325B2 (en) Series wired light string with unidirectional resistive shunts
JP3072550B2 (en) Induction lighting prevention circuit for signal lights using LEDs
KR200195503Y1 (en) Ballast circuit with error-displaying function for low voltage natrium lamp
JP6369689B2 (en) Beacon light and beacon light system
JP7494039B2 (en) Signal light bulbs and signals
JP5788242B2 (en) LED lighting device and display device having the same
JP6595540B2 (en) Lighting circuit and signal device
JP2016177879A (en) Marker lamp and marker lamp system
JP2017174680A (en) LED lamp and LED lighting device
JP6369690B2 (en) Beacon light system
KR101391976B1 (en) Lighting emitting diode lamp with multiple safety

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20130204

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20131031

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20131105

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20131212

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20140218

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20140218

R150 Certificate of patent or registration of utility model

Ref document number: 5484144

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250