JP2014158383A - LED street light uninterruptible power supply - Google Patents

LED street light uninterruptible power supply Download PDF

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JP2014158383A
JP2014158383A JP2013028524A JP2013028524A JP2014158383A JP 2014158383 A JP2014158383 A JP 2014158383A JP 2013028524 A JP2013028524 A JP 2013028524A JP 2013028524 A JP2013028524 A JP 2013028524A JP 2014158383 A JP2014158383 A JP 2014158383A
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power supply
street light
power
led
secondary battery
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JP5378619B1 (en
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Takatoshi Kawai
孝敏 河合
Masato Izumi
正人 泉
Atsushi Fukazawa
篤 深澤
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MACHIDA CITY
MACHIDA LAB LLC
Izumi Cosmo Co Ltd
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MACHIDA CITY
MACHIDA LAB LLC
Izumi Cosmo Co Ltd
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    • 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
    • Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting

Abstract

PROBLEM TO BE SOLVED: To provide an LED street light uninterruptible power supply in which failure can be found at an early stage, and occurrence of failure can be prevented excellently.SOLUTION: During the normal time when power supply from a commercial AC power supply 14 is continuing, the switch of a power failure changeover circuit 16 is turned to a position opposite from that shown on fig. 3, i.e., the AC power supply 15 side, and an LED illuminating device is lit with power supplied from the AC power supply 15. At this time, a lithium ferrite secondary battery 11 is charged via a charger and driver 10. When power supply from the AC power supply 14 is stopped for some reason, it is sensed and the switch of a power failure changeover circuit 16 is turned to the lithium ferrite secondary battery 11 side shown on fig. 3. Since a switch circuit 17 is turned on at night, the LED illuminating device is lit with power supplied from the lithium ferrite secondary battery 11.

Description

本発明は充電式バッテリを支柱に内蔵したＬＥＤ街路灯無停電電源装置に関する。   The present invention relates to an LED street light uninterruptible power supply device in which a rechargeable battery is built in a column.

昼間に太陽電池で生じた電気を蓄電池に溜め、この電気を利用してＬＥＤライトを点灯する先行技術が提案されている。
例えば特許文献１には、灯具本体ケース内にＬＥＤ光源と、太陽光発電を行うソーラパネルからの電力を溜めるバッテリを配置し、このバッテリからＬＥＤ光源に給電する内容が開示されている。 Prior art has been proposed in which electricity generated by solar cells in the daytime is stored in a storage battery and the LED light is turned on using this electricity.
For example, Patent Literature 1 discloses a content in which an LED light source and a battery for storing power from a solar panel that performs solar power generation are arranged in a lamp body case, and power is supplied from the battery to the LED light source.

特許文献２には、ソーラパネルで充電されるバッテリからの第１の系統と、商用ＡＣ電源からの第２の系統を備え、通常時は第１の系統からの電力によってＬＥＤライトを点灯し、充電不足や緊急時には第２の電源を用いてＬＥＤライトを点灯する内容が開示されている。 Patent Document 2 includes a first system from a battery charged by a solar panel and a second system from a commercial AC power source. In normal times, an LED light is turned on by power from the first system, The content which lights an LED light using a 2nd power supply at the time of insufficient charge or emergency is disclosed.

特許文献３には、ＬＥＤと充電式バッテリを備えた街路灯などの照明装置が開示されている。この照明装置は感知器によって送電されていないことが感知されることにより、この前記バッテリに蓄電した電力によって緊急照明用ＬＥＤを点灯するようにしている。   Patent Document 3 discloses a lighting device such as a street lamp including an LED and a rechargeable battery. When this lighting device senses that no power is being transmitted by the sensor, the emergency lighting LED is turned on by the power stored in the battery.

特許文献４には、移動式の街路灯として、支柱の頂部にソーラパネルを、ソーラパネルよりも若干下方の支柱の上部にＬＥＤライトを設け、支柱の上部に設けたボックス内にソーラパネルからの電力を充電するバッテリやコントローラを配置した構造が提案されている。   In Patent Literature 4, as a mobile street light, a solar panel is provided at the top of the support column, an LED light is provided at the upper part of the support column slightly below the solar panel, and the solar panel is mounted in a box provided at the upper portion of the support column. A structure in which a battery and a controller for charging electric power are arranged has been proposed.

特許文献５には、ＬＥＤを用いた非常用照明装置として、リチウムイオン電池を組み込んだ構造が提案されている。この照明装置は複数個のＬＥＤを直列に接続し、これらＬＥＤの全てまたは一部にリチウムイオン電池を並列に接続することで、停電検出回路や切替スイッチを不要とした回路構成を可能とした内容が提案されている。   Patent Document 5 proposes a structure incorporating a lithium ion battery as an emergency lighting device using an LED. This lighting device has a configuration in which a plurality of LEDs are connected in series, and a lithium-ion battery is connected in parallel to all or part of these LEDs, thereby enabling a circuit configuration that eliminates the need for a power failure detection circuit and a changeover switch. Has been proposed.

特開２０１２−２２７１０５号公報JP 2012-227105 A 特開２０１１−１９９９６３号公報JP 2011-199963 A 特開２００８−２５８１２３号公報JP 2008-258123 A 特開２００５−０５６８０７号公報JP 2005-056807 A 特開２０１１−０９０９７０号公報JP 2011-090970 A

特許文献１〜５に開示された内容に基づけば、平常時は商用ＡＣ電源からの電力によって点灯され、停電時には太陽光発電などで蓄電したバッテリからの電力によって点灯されるＬＥＤ街路灯は容易に想定される。   Based on the contents disclosed in Patent Documents 1 to 5, LED street lights that are lit by electric power from a commercial AC power source during normal times and lit by electric power from a battery stored by solar power generation or the like during a power outage are easily is assumed.

一方、上記の構成によって多数の街路灯を設置した場合、各街路灯ごとに部品の寿命や回路の不具合の有無が異なり、停電時ではないのに商用ＡＣ電源からの電力ではなくバッテリからの電力によって点灯する街路灯が発生することが想定される。
しかしながら、外観的には他の街路灯と同様に点灯しているため判断することができない。
このような街路灯は平常時でもバッテリを利用しているため、バッテリの蓄電量が不足し、停電が起きたときに十分な機能を発揮できない。 On the other hand, when a large number of street lamps are installed with the above configuration, the life of parts and the presence or absence of circuit defects differ for each street light, and the power from the battery, not the power from the commercial AC power supply, is not at the time of a power failure. It is assumed that street lights that are turned on will be generated.
However, it cannot be judged because it is lit in the same manner as other street lights.
Since such a street light uses a battery even in normal times, the amount of power stored in the battery is insufficient, and a sufficient function cannot be exhibited when a power failure occurs.

また従来の街路灯にあっては、バッテリやコントローラを個別に組み込むようにしており、有効な防水対策をここの部材に施す必要があり手間がかかるとともにとコストアップの原因となっている。特に、台風や河川の氾濫、高潮などによって支柱内に水が浸入した場合に、十分な耐水性を発揮できる構造が提案されていない。   Moreover, in the conventional street light, the battery and the controller are individually incorporated, and it is necessary to apply effective waterproof measures to the members here, which is troublesome and causes an increase in cost. In particular, no structure has been proposed that can exhibit sufficient water resistance when water enters the column due to typhoons, river floods, storm surges, and the like.

上記の課題を解決するため本発明は、光センサによって夜間と判断した場合には商用ＡＣ電源を電源とし、夜間と判断した場合で且つ前記商用ＡＣ電源から給電されていないと判断した場合に電源を内部電源装置に切り替えるようにしたＬＥＤ街路灯無停電電源装置において、電源が前記内部電源装置に切り替えられていることを表示するＬＥＤ等の表示ランプが外部から視認可能な街路灯の支柱に取付けられた構成とした。 In order to solve the above problems, the present invention uses a commercial AC power source as a power source when it is determined at night by an optical sensor, and a power source when it is determined that it is night and when power is not supplied from the commercial AC power source. In an LED street light uninterruptible power supply that switches to an internal power supply, an indicator lamp such as an LED that indicates that the power supply has been switched to the internal power supply is attached to a streetlight post that is visible from the outside. The configuration was as follows.

前記内部電源装置はリチウムフェライト二次電池と、このリチウムフェライト二次電池に夜間点灯時に充電する充電器と、電源の切替を行うコントローラとを袋状または筒状の防水構造体内に収納した状態で、支柱内部に吊下げ支持することが好ましい。
また、内部電源装置に停電時に点灯時間を長くする調光装置を設けることが好ましい。 The internal power supply device includes a lithium ferrite secondary battery, a charger that charges the lithium ferrite secondary battery when it is lit at night, and a controller that switches the power supply in a bag-shaped or cylindrical waterproof structure. It is preferable to suspend and support the inside of the column.
Moreover, it is preferable to provide a light control device for increasing the lighting time at the time of a power failure in the internal power supply.

従来の街路灯として、支柱とは別体のボックスを支柱に取付け、このボックス内にバッテリを収納したものは存在するが、これではコストアップを招いてしまい、支柱内の空間の有効利用が図れていない。   As a conventional street light, there is a box with a separate box attached to the column and a battery inside the box. However, this increases the cost, and the space in the column can be used effectively. Not.

本発明に係るＬＥＤ街路灯無停電電源装置によれば、ＬＥＤ街路灯が非常用の内部電源装置によって駆動していることを表示ランプが点灯するため外部から視認することができる。したがって、災害などが発生していない平常時に表示ランプが点灯している場合は、通常の商用ＡＣ電源からＬＥＤまでの回路に異常が発生していることになるので、故障を早期発見することができる。   According to the uninterruptible power supply for an LED street light according to the present invention, the fact that the LED street light is driven by an emergency internal power supply device can be visually recognized from the outside because the display lamp is turned on. Therefore, when the indicator lamp is lit at normal times when no disasters have occurred, an abnormality has occurred in the circuit from the normal commercial AC power supply to the LED, so that a failure can be detected early. it can.

また、バッテリ（リチウムフェライト二次電池）、充電器、電源の切替および調光等を行うコントローラをユニット化して防水性に優れた袋や筒体内に収納し、この状態で支柱内に吊下げるようにすれば、万一支柱内に水が浸入した場合でも、電源装置として機能する。 In addition, a battery (lithium ferrite secondary battery), charger, controller for switching the power supply, dimming, etc. should be unitized and stored in a bag or cylinder with excellent waterproofness, and suspended in the column in this state. In this case, even if water enters the support column, it functions as a power supply device.

本発明に係る無停電電源装置を組み込んだＬＥＤ街路灯の全体図Overall view of LED street light incorporating uninterruptible power supply according to the present invention 非常用の内部電源装置の構造を示す図Diagram showing the structure of an emergency internal power supply 本発明に係る無停電電源装置の回路図Circuit diagram of uninterruptible power supply according to the present invention 無停電装置を袋状としたときのイメージ図Image diagram of uninterruptible power device in bag shape

本発明に係る無停電電源装置を組み込むＬＥＤ街路灯は中空状の支柱１の上端にＬＥＤ照明装置が取付けられている。 The LED street light incorporating the uninterruptible power supply according to the present invention has an LED lighting device attached to the upper end of a hollow column 1.

前記支柱１は下部を大径部１ａとし、この大径部１ａよりも上方を小径部１ｂとしている。大径部１ａには開口１ｃが形成され、この開口１ｃは着脱自在な蓋体４で閉じられ、また小径部１ｂの外側にはボックスＢを取付け、このボックスＢに光センサ５と非常用の表示ランプ（ＬＥＤ）６が取付けられている。 The lower part of the support column 1 is a large diameter part 1a, and the upper part is a small diameter part 1b above the large diameter part 1a. An opening 1c is formed in the large-diameter portion 1a. The opening 1c is closed by a detachable lid 4. A box B is attached to the outside of the small-diameter portion 1b, and the optical sensor 5 and the emergency sensor are attached to the box B. An indicator lamp (LED) 6 is attached.

前記大径部１ａ内の空間内には内部電源装置７が収納されている。この内部電源装置７は防水性の筒体８ａと上部の蓋体８ｂからなる防水構造体８内にコントローラ９、充電器兼駆動装置１０及びリチウムフェライト二次電池１１が組み込まれている。また防水構造体８は大径部１ａの内側面に設けられているフック１２にチェーン１３を介して吊下げ支持されている。尚、防水構造体８内において各部材９、１０、１１はガタつくことがないように長尺な多孔板３に位置決め固定されている。 An internal power supply device 7 is accommodated in the space in the large diameter portion 1a. In this internal power supply device 7, a controller 9, a charger / drive device 10, and a lithium ferrite secondary battery 11 are incorporated in a waterproof structure 8 including a waterproof cylinder 8 a and an upper lid 8 b. The waterproof structure 8 is supported by being suspended via a chain 13 on a hook 12 provided on the inner surface of the large-diameter portion 1a. In the waterproof structure 8, the members 9, 10, and 11 are positioned and fixed to the long porous plate 3 so as not to rattle.

前記防水構造体８としては筒体に限らず袋状のものでもよい。特に防水構造体８を気密性の容器とし、内部に乾燥剤を入れることで、湿気から内部電源装置７を保護することができる。また、二次電池としてはリチウムフェライト以外の二次電池でもよい。更にコントローラ９としは後述する停電時の切替回路及びスイッチ回路が含まれる。 The waterproof structure 8 is not limited to a cylindrical body, but may be a bag-like structure. In particular, the internal power supply device 7 can be protected from moisture by using the waterproof structure 8 as an airtight container and putting a desiccant inside. The secondary battery may be a secondary battery other than lithium ferrite. Further, the controller 9 includes a switching circuit and a switch circuit at the time of power failure, which will be described later.

図３は回路構成図であり、商用のＡＣ電源１４はスイッチ回路１５を介して前記充電器兼駆動装置１０に接続され、この充電器兼駆動装置１０は停電時切替回路１６を介して前記ＬＥＤ照明装置に接続されている。また充電器兼駆動装置１０には前記リチウムフェライト二次電池１１が接続され、このリチウムフェライト二次電池１１はスイッチ回路１７を介して前記停電時切替回路１６に接続されている。更に、前記リチウムフェライト二次電池１１と停電時切替回路１６とを接続する回路の途中には前記非常用の表示ランプ（ＬＥＤ）６が接続されている。 FIG. 3 is a circuit configuration diagram. A commercial AC power supply 14 is connected to the charger / drive device 10 via a switch circuit 15, and the charger / drive device 10 is connected to the LED via a power failure switching circuit 16. Connected to lighting device. The lithium ferrite secondary battery 11 is connected to the charger / drive device 10, and the lithium ferrite secondary battery 11 is connected to the switching circuit 16 at the time of power failure via a switch circuit 17. Further, the emergency display lamp (LED) 6 is connected in the middle of the circuit connecting the lithium ferrite secondary battery 11 and the switching circuit 16 at power failure.

以上において、光センサ５が感知する光量が閾値を下回ると、夜間になったと判断して、スイッチ回路１５，１７がオンになる。
そして、商用のＡＣ電源１４からの給電が継続している平常時にあっては、停電時切替回路１６のスイッチ１６ａは図３とは逆の位置、つまりＡＣ電源１４側に入っており、ＬＥＤ照明装置はＡＣ電源１４から供給される電力によって点灯する。このとき、リチウムフェライト二次電池１１には充電器兼駆動装置１０を介して充電が行われる。 In the above, when the amount of light detected by the optical sensor 5 falls below the threshold value, it is determined that the night has come, and the switch circuits 15 and 17 are turned on.
In the normal state where the power supply from the commercial AC power supply 14 is continued, the switch 16a of the switching circuit 16 at the time of power failure is in a position opposite to that in FIG. The device is lit by the power supplied from the AC power source 14. At this time, the lithium ferrite secondary battery 11 is charged via the charger / drive device 10.

一方、何らかの原因でＡＣ電源１４からの給電が停止した場合は、それを感知して停電時切替回路１６のスイッチ１６ａが図３に示すリチウムフェライト二次電池１１側に切り替わる。このとき、夜間であればスイッチ回路１７がオンになっているので、ＬＥＤ照明装置はリチウムフェライト二次電池１１から供給される電力によって点灯する。 On the other hand, when the power supply from the AC power supply 14 is stopped for some reason, the switch 16a of the power failure switching circuit 16 is switched to the lithium ferrite secondary battery 11 side shown in FIG. At this time, since the switch circuit 17 is turned on at night, the LED lighting device is lit by the power supplied from the lithium ferrite secondary battery 11.

また、ＬＥＤ照明装置が非常用のリチウムフェライト二次電池１１によって点灯されている場合はスイッチ回路１７がオン状態になっているので表示ランプ６が点灯し、非常用電源を使用していることを周囲に知らせる。
仮に平常時に表示ランプ６が点灯している場合には、ＡＣ電源１４と停電時切替回路１６との間の回路に何らかの不具合があると判断されるので、緊急時に備えて修理を行う。 Further, when the LED lighting device is lit by the emergency lithium ferrite secondary battery 11, the switch circuit 17 is in an ON state, so that the display lamp 6 is lit and the emergency power source is used. Tell the surroundings.
If the display lamp 6 is normally lit, it is determined that there is some malfunction in the circuit between the AC power supply 14 and the power failure switching circuit 16, and repair is performed in preparation for an emergency.

また、上記のコントローラ９の回路に調光機能を付加することが可能である。即ち、本願の街路灯は支柱１内の限られた空間内に内部電源装置７を収納しているためバッテリ容量に制限がある。そこで、調光機構を設け非常時には明るさを半減するなどして点灯時間を長くすることが考えられる。 In addition, a dimming function can be added to the circuit of the controller 9 described above. That is, the street lamp of the present application has a limited battery capacity because the internal power supply device 7 is housed in a limited space in the column 1. Therefore, it is conceivable to provide a dimming mechanism and extend the lighting time by, for example, halving the brightness in an emergency.

図４に示す実施例にあっては、防水構造体８として、筒体ではなく袋状のものを用いている。このように防水構造体８を袋状とすることで、開口１ｃの高さ寸法が小さい場合でも防水構造体８を曲げながら支柱内に挿入することができるので、自由度が高くなる。 In the embodiment shown in FIG. 4, the waterproof structure 8 is not a cylinder but a bag. Thus, by making the waterproof structure 8 into a bag shape, even when the height dimension of the opening 1c is small, the waterproof structure 8 can be inserted into the support column while being bent, so that the degree of freedom is increased.

本発明に係る無停電電源装置は、既存の一般道路、公園、高速道路の街路灯など、ＬＥＤ以外の効率の悪い照明器具による街路灯をＬＥＤ街路灯に更新する際のみならず新規のＬＥＤ街路灯にも利用することができる。   The uninterruptible power supply according to the present invention is a new LED street as well as an existing street light for general roads, parks, and highway street lights, such as street lights with inefficient lighting fixtures other than LEDs. It can also be used for street lights.

１…支柱、１ａ…支柱の大径部、１ｂ…支柱の小径部、１ｃ…開口部、３…長尺な多孔板、４…蓋体、５…光センサ、６…非常用の表示ランプ（ＬＥＤ）、７…内部電源装置、８…防水構造体、８ａ…防水性の筒体、８ｂ…防水性の蓋体、９…コントローラ（調光機付き）、１０…充電器兼駆動装置、１１…リチウムフェライト二次電池、１２…フック、１３…チェーン、１４…ＡＣ電源、１５…スイッチ回路、１６……停電時切替回路、１６ａ…停電時切替回路のスイッチ、１７…スイッチ回路、１８…コネクタ部材。   DESCRIPTION OF SYMBOLS 1 ... Support | pillar, 1a ... Large diameter part of support | pillar, 1b ... Small diameter part of support | pillar, 1c ... Opening part, 3 ... Long porous plate, 4 ... Cover, 5 ... Photosensor, 6 ... Emergency display lamp ( LED), 7 ... internal power supply, 8 ... waterproof structure, 8a ... waterproof cylinder, 8b ... waterproof lid, 9 ... controller (with dimmer), 10 ... charger and drive device, 11 ... lithium ferrite secondary battery, 12 ... hook, 13 ... chain, 14 ... AC power supply, 15 ... switch circuit, 16 ... switching circuit at power failure, 16a ... switch of switching circuit at power failure, 17 ... switch circuit, 18 ... connector Element.

一方、何らかの原因でＡＣ電源１４からの給電が停止した場合は、それを感知して停電時切替回路１６のスイッチ１６ａが図３に示すリチウムフェライト二次電池１１側に切り替わる。これと連動して表示ランプ６のスイッチ６ａがオンになる。このとき、夜間であればスイッチ回路１７がオンになっているので、ＬＥＤ照明装置はリチウムフェライト二次電池１１から供給される電力によって点灯する。 On the other hand, when the power supply from the AC power supply 14 is stopped for some reason, the switch 16a of the power failure switching circuit 16 is switched to the lithium ferrite secondary battery 11 side shown in FIG. In conjunction with this, the switch 6a of the display lamp 6 is turned on. At this time, since the switch circuit 17 is turned on at night, the LED lighting device is lit by the power supplied from the lithium ferrite secondary battery 11.

Claims (3)

光センサによって夜間と判断した場合には商用ＡＣ電源を電源とし、夜間と判断した場合で且つ前記商用ＡＣ電源から給電されていないと判断した場合に電源を内部電源装置に切り替えるようにしたＬＥＤ街路灯無停電電源装置において、電源が前記内部電源装置に切り替えられていることを表示するランプが外部から視認可能な街路灯の支柱に取付けられていることを特徴とするＬＥＤ街路灯無停電電源装置。   An LED town that uses a commercial AC power source as a power source when it is determined by a light sensor, and switches the power source to an internal power supply when it is determined that it is night and when it is determined that power is not supplied from the commercial AC power source. An LED street light uninterruptible power supply, characterized in that in the street light uninterruptible power supply, a lamp for indicating that the power source is switched to the internal power supply is attached to a street light column visible from the outside. . 請求項１に記載のＬＥＤ街路灯無停電電源装置において、前記内部電源装置はリチウムフェライト二次電池と、このリチウムフェライト二次電池に夜間点灯時に充電する充電器と、電源の切替を行うコントローラとを袋状または筒状の防水構造体内に収納した状態で、支柱内部に吊下げ支持していることを特徴とするＬＥＤ街路灯無停電電源装置。   2. The LED street light uninterruptible power supply according to claim 1, wherein the internal power supply is a lithium ferrite secondary battery, a charger that charges the lithium ferrite secondary battery when it is lit at night, a controller that switches a power supply, An LED street light uninterruptible power supply device, wherein the LED street light is suspended and supported inside a column in a state of being housed in a bag-shaped or cylindrical waterproof structure. 請求項１に記載のＬＥＤ街路灯無停電電源装置において、前記内部電源装置は停電時に調光することで点灯時間を長くする調光装置を備えることを特徴とするＬＥＤ街路灯無停電電源装置。   2. The LED street light uninterruptible power supply device according to claim 1, wherein the internal power supply device includes a dimming device that dims the lighting time by dimming during a power failure.
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