JP2008253119A

JP2008253119A - Distribution panel

Info

Publication number: JP2008253119A
Application number: JP2007095259A
Authority: JP
Inventors: Takuya Kagawa; 卓也香川; Shinichiro Okamoto; 信一郎岡本; Tomoyuki Sawada; 知行澤田; Hiroaki Koshin; 博昭小新
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 2007-03-30
Filing date: 2007-03-30
Publication date: 2008-10-16

Abstract

<P>PROBLEM TO BE SOLVED: To provide a distribution panel capable of comparatively reducing an occupied space for disposing all a trunk breaker, branched breakers, an AC-DC converter and DC equipment and facilitating wiring work. <P>SOLUTION: The distribution panel has a DC-related disposing space A for disposing the AC-DC converter 22 for converting AC power into DC power and a DC circuit section including a DC device 23 needing DC power, and an AC-related disposing space B for disposing a DC circuit section having one trunk breaker 31 and a plurality of branched breakers 32 connected to the AC power, both the spaces being provided in a single casing 1. The branched breakers 32 are disposed on both sides of a vertical direction of conductive bars 90a-90c connected to the trunk breaker 31. The DC device 23 is disposed on the lower part of the conductive bar 29 biasedly disposed to a DC output of the DC-AC converter 22. The conductive bar 29 is disposed on a position biased to an upper branched breaker 32 in the vertical direction. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、屋内配線の分岐に用いる分電盤に関するものである。 The present invention relates to a distribution board used for branching indoor wiring.

従来から、この種の分電盤としては、たとえば住宅等の壁に取り付けられた前面が矩形状の筐体内に、交流電源に接続された主幹ブレーカと、主幹ブレーカの側方において上下２段に分かれて左右方向に複数個ずつ並設された分岐ブレーカとを収納し、上下各段の分岐ブレーカに挟まれ左右方向に延長された交流側導電バーを介して主幹ブレーカと分岐ブレーカとを電気的に接続したものが提供されている。この分電盤は、主幹ブレーカおよび分岐ブレーカを介して交流電源をたとえば住宅内の電源コンセントに分配し、電源コンセントに接続された電気機器に対して交流電源を供給する。 Conventionally, as this type of distribution board, for example, a front face attached to a wall of a house or the like is in a rectangular housing, a main breaker connected to an AC power source, and a two-stage upper and lower side on the side of the main breaker Separates multiple branch breakers arranged in parallel in the left and right direction, and electrically connects the main breaker and branch breaker via the AC side conductive bar sandwiched between the upper and lower branch breakers and extended in the left and right direction A connection to is provided. This distribution board distributes AC power to, for example, a power outlet in a house via a main breaker and a branch breaker, and supplies AC power to the electrical equipment connected to the power outlet.

ところで、近年、たとえばＬＡＮ用通信モジュール、インターネットに接続するためのゲートウェイ、ルータ等のインターネット用通信モジュール、無線データ通信のための無線通信モジュール、ＢＳ・ＣＳ・ＣＡＴＶのブースタ等の映像系ユニットなど、直流電力を必要とする直流機器の使用の機会が増えている。これらの直流機器は、従来の大型の電気機器のように交流電源を直流電源に変換する交流直流変換器（ＡＣ／ＤＣコンバータ）を内蔵せず、電源コンセントに接続するＡＣアダプタ等の外付けの電源部を用いるものである。 By the way, in recent years, for example, LAN communication modules, gateways for connecting to the Internet, Internet communication modules such as routers, wireless communication modules for wireless data communication, video system units such as BS / CS / CATV boosters, etc. Opportunities for using DC devices that require DC power are increasing. These DC devices do not incorporate an AC / DC converter (AC / DC converter) that converts AC power into DC power, unlike conventional large electrical devices, and are externally attached to an AC adapter or the like that is connected to a power outlet. A power supply unit is used.

一方、交流直流変換器を内蔵しない直流機器の使用に際して、各直流機器ごとに用いられる外付けの電源部（ＡＣアダプタ等）を不要とするために、分電盤を介して交流電源に接続される１台の交流直流変換器を分電盤の外部に設け、この交流直流変換器から出力される直流電源をＤＣ／ＤＣコンバータで昇圧もしくは降圧して各直流機器に供給するようにすることが考えられている（たとえば特許文献１参照）。
特開２００４−１１２９２０号公報 On the other hand, when using a DC device that does not have an AC / DC converter, it is connected to an AC power source via a distribution board in order to eliminate the need for an external power supply (such as an AC adapter) used for each DC device. One AC / DC converter is provided outside the distribution board, and the DC power output from the AC / DC converter is stepped up or down by a DC / DC converter and supplied to each DC device. (For example, refer to Patent Document 1).
JP 2004-112920 A

しかし、特許文献１記載の発明では、交流直流変換器と直流機器とが分電盤の外部に設けられているので、主幹ブレーカおよび分岐ブレーカを収納した分電盤の筐体の取り付けるスペースとは別に交流直流変換器および直流機器を配置するスペースが必要になり、主幹ブレーカと分岐ブレーカと交流直流変換器と直流機器とを全て配置するための占有スペースは大きくなる。 However, in the invention described in Patent Document 1, since the AC / DC converter and the DC device are provided outside the distribution board, the space for mounting the distribution board housing containing the main breaker and the branch breaker is as follows. Separately, a space for arranging the AC / DC converter and the DC device is required, and an occupied space for arranging all of the main breaker, the branch breaker, the AC / DC converter, and the DC device becomes large.

さらに、分電盤と交流直流変換器とが離れて配置される場合に分電盤と交流直流変換器との間の配線を邪魔にならないように引き回す作業には手間がかかるという問題がある。同様に、交流直流変換器と直流機器とが離れて配置される場合には交流直流変換器と直流機器との間の配線を邪魔にならないように引き回す作業には手間がかかる。 Furthermore, when the distribution board and the AC / DC converter are arranged apart from each other, there is a problem that it takes time and effort to route the wiring between the distribution board and the AC / DC converter so as not to get in the way. Similarly, when the AC / DC converter and the DC device are arranged apart from each other, it takes time and effort to route the wiring between the AC / DC converter and the DC device so as not to interfere.

本発明は上記事由に鑑みて為されたものであって、主幹ブレーカと分岐ブレーカと交流直流変換器と直流機器とを全て配置するための占有スペースが従来構成に比較して小さくなり、且つ配線作業が容易となる分電盤を提供することを目的とする。 The present invention has been made in view of the above-mentioned reasons, and the occupied space for arranging all the main breaker, branch breaker, AC / DC converter, and DC device is smaller than the conventional configuration, and the wiring An object is to provide a distribution board that facilitates the work.

請求項１の発明は、交流電源に接続された交流回路部と、交流回路部から入力される交流電源を直流電源に変換して出力する交流直流変換器と、交流直流変換器の出力に接続される直流回路部とを前面矩形状の１つの筐体内に収納した分電盤であって、前記交流回路部が、交流電源に接続された主幹ブレーカと、筐体の前面の一辺に沿って延長されており主幹ブレーカに接続された交流側導電バーと、筐体の前面に沿う面内での交流側導電バーの幅方向の両側において交流側導電バーの長手方向に沿って複数個ずつ並設されておりそれぞれ交流側導電バーに接続された分岐ブレーカとを備え、前記直流回路部が、前記交流側導電バーの長手方向の側方において前記交流側導電バーの長手方向と同方向に延長されており前記交流直流変換器の出力に接続された直流側導電バーと、直流側導電バーに接続された直流機器とを備え、直流機器が、交流側導電バーの幅方向の一端部側で直流側導電バーに接続され、直流側導電バーが、交流側導電バーの幅方向の両側の分岐ブレーカのうちの一方側に偏った位置に配設されていることを特徴とする。 The invention of claim 1 is an AC circuit unit connected to an AC power source, an AC / DC converter for converting an AC power source input from the AC circuit unit to a DC power source, and an output of the AC / DC converter. And a DC breaker connected to an AC power source along one side of the front surface of the casing. A plurality of AC side conductive bars that are extended and connected to the main circuit breaker are arranged along the longitudinal direction of the AC side conductive bars on both sides in the width direction of the AC side conductive bar in the plane along the front surface of the housing. A branch breaker connected to the AC side conductive bar, and the DC circuit portion extends in the same direction as the longitudinal direction of the AC side conductive bar on the side of the AC side conductive bar in the longitudinal direction. The output of the AC / DC converter A DC side conductive bar connected to the DC side conductive bar, and a DC unit connected to the DC side conductive bar. The DC unit is connected to the DC side conductive bar at one end side in the width direction of the AC side conductive bar, and the DC side The conductive bar is arranged at a position biased to one side of the branch breakers on both sides in the width direction of the AC side conductive bar.

この構成によれば、交流直流変換器および直流機器を主幹ブレーカおよび分岐ブレーカと共に１つの筐体内に収納しているので、交流直流変換器および直流機器を主幹ブレーカおよび分岐ブレーカと別に設置する場合に比べて、主幹ブレーカと分岐ブレーカと交流直流変換器と直流機器とを全て配置するための占有スペースを小さくすることができ、且つ、分岐ブレーカと交流直流変換器との間の配線作業、交流直流変換器と直流機器との間の配線作業がどちらも容易になる。また、直流機器は一般的に分岐ブレーカよりも外形が大きいので、仮に直流側導電バーが交流側導電バーの長手方向の延長線上に配設されていると、交流側導電バーの幅方向における分岐ブレーカの端面からの直流機器の突出量が大きく、筐体において交流側導電バーの幅方向における分岐ブレーカの外側に無駄なスペースが空き、交流側導電バーの幅方向の寸法が必要以上に大きい筐体を用いることになるが、請求項１の構成によれば、直流機器を接続する直流側導電バーが交流側導電バーの幅方向の両側の分岐ブレーカのうちの一方側に偏った位置に配設されているので、交流側導電バーの幅方向における分岐ブレーカの端面からの直流機器の突出量を小さく抑えることができる。したがって、交流側導電バーの幅方向における筐体の寸法を小さく抑えることができ、筐体の占有スペースを極力小さく抑えることができる。なお、筐体は交流側導電バーの長手方向を上下方向とする縦向きと、交流側導電バーの長手方向を左右方向とする横向きとのどちらでも使用することができるものである。 According to this configuration, the AC / DC converter and the DC device are housed in the single casing together with the main breaker and the branch breaker. Therefore, when the AC / DC converter and the DC device are installed separately from the main breaker and the branch breaker. Compared to the main circuit breaker, branch breaker, AC / DC converter, and DC equipment, the occupied space can be reduced, and the wiring work between the branch breaker and the AC / DC converter can be reduced. Both wiring work between the converter and the DC device is facilitated. Further, since the DC device is generally larger in outer shape than the branch breaker, if the DC side conductive bar is disposed on the longitudinal extension of the AC side conductive bar, the branch in the width direction of the AC side conductive bar is assumed. The protruding amount of the DC device from the end face of the breaker is large, there is a useless space outside the branch breaker in the width direction of the AC side conductive bar in the case, and the width direction dimension of the AC side conductive bar is larger than necessary. According to the configuration of claim 1, the DC side conductive bar connecting the DC device is arranged at a position biased to one side of the branch breakers on both sides in the width direction of the AC side conductive bar. Since it is provided, the protrusion amount of the DC device from the end face of the branch breaker in the width direction of the AC side conductive bar can be suppressed small. Therefore, the size of the housing in the width direction of the AC side conductive bar can be kept small, and the occupied space of the housing can be kept as small as possible. The casing can be used in either a vertical direction in which the longitudinal direction of the AC side conductive bar is the vertical direction or a horizontal direction in which the longitudinal direction of the AC side conductive bar is the horizontal direction.

請求項２の発明は、請求項１の発明において、前記筐体が前面に沿う面内での前記交流側導電バーの幅方向が上下方向となるように設置されており、前記直流側導電バーが、交流側導電バーの上方の前記分岐ブレーカ側に偏った位置に配設されていることを特徴とする。 According to a second aspect of the present invention, in the first aspect of the invention, the casing is installed such that a width direction of the AC side conductive bar in a plane along the front surface is a vertical direction, and the DC side conductive bar Is arranged at a position biased toward the branch breaker side above the AC side conductive bar.

この構成によれば、交流側導電バーの幅方向が上下方向となるから、筐体の上下方向の寸法を小さく抑えることができる。また、直流側導電バーが交流側導電バーよりも上寄りに配設されているので、分岐ブレーカよりも外形が大きい一般的な直流機器を直流側導電バーの下方の比較的低い位置に配置することができ、筐体が高所に取り付けられている場合に、直流機器が高い位置に配置される構成に比べて直流機器の保守点検作業が容易になる。 According to this configuration, since the width direction of the AC-side conductive bar is the vertical direction, the vertical dimension of the housing can be kept small. Further, since the DC side conductive bar is disposed above the AC side conductive bar, a general DC device having a larger outer shape than the branch breaker is disposed at a relatively low position below the DC side conductive bar. In the case where the casing is attached at a high place, the DC device can be maintained and inspected more easily than a configuration in which the DC device is arranged at a high position.

請求項３の発明は、請求項１または請求項２の発明において、前記交流直流変換器が、前記交流回路部と前記直流機器との間に配置されていることを特徴とする。 A third aspect of the invention is characterized in that, in the first or second aspect of the invention, the AC / DC converter is disposed between the AC circuit section and the DC device.

この構成によれば、直流機器を交流回路部から離すことができ、交流回路部から放射されるノイズの直流機器への影響を低減することができる。 According to this configuration, the DC device can be separated from the AC circuit unit, and the influence of noise radiated from the AC circuit unit on the DC device can be reduced.

請求項４の発明は、請求項１ないし請求項３のいずれかの発明において、前記筐体における前記交流回路部と前記直流回路部との間に、交流回路部の配線が収納される空間と直流回路部の配線が収納される空間とを仕切る隔壁を設けたことを特徴とする。 According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, a space in which the wiring of the AC circuit unit is accommodated between the AC circuit unit and the DC circuit unit in the housing. The present invention is characterized in that a partition wall is provided for partitioning the space for storing the wiring of the DC circuit portion.

この構成によれば、交流回路部の配線と直流回路部の配線とが１つの空間に混在する場合に比べて、配線の見分けが容易になり配線作業を容易に行うことができる。交流回路部と直流回路部とでは互いに異なる作業者によって配線作業が行われることもあるが、この場合にも、特に配線が混乱せず配線作業を円滑に行うことができる。 According to this configuration, as compared with the case where the wiring of the AC circuit unit and the wiring of the DC circuit unit are mixed in one space, the wiring can be easily distinguished and the wiring work can be easily performed. In the AC circuit unit and the DC circuit unit, wiring work may be performed by workers different from each other, but in this case as well, wiring work can be performed smoothly without any particular confusion.

本発明は、交流直流変換器および直流機器を主幹ブレーカおよび分岐ブレーカと共に１つの筐体内に収納しているので、主幹ブレーカと分岐ブレーカと交流直流変換器と直流機器とを全て配置するための占有スペースを比較的小さくすることができ、且つ、分岐ブレーカと交流直流変換器との間の配線作業、交流直流変換器と直流機器との間の配線作業がどちらも容易になる。また、直流機器を接続する直流側導電バーが交流側導電バーの幅方向の両側の分岐ブレーカのうちの一方側に偏った位置に配設されているので、交流側導電バーの幅方向における分岐ブレーカの端面から直流機器が突出することを回避可能となり、交流側導電バーの幅方向における筐体の寸法を小さく抑えることができるという効果がある。 In the present invention, since the AC / DC converter and the DC device are housed in the single casing together with the main breaker and the branch breaker, the occupation for arranging all the main breaker, the branch breaker, the AC / DC converter, and the DC device. The space can be made relatively small, and the wiring work between the branch breaker and the AC / DC converter and the wiring work between the AC / DC converter and the DC device are both facilitated. In addition, since the DC side conductive bar connecting the DC device is arranged at a position biased to one side of the branch breakers on both sides in the width direction of the AC side conductive bar, the branch in the width direction of the AC side conductive bar It is possible to avoid the direct current device from protruding from the end face of the breaker, and there is an effect that the size of the housing in the width direction of the alternating current side conductive bar can be suppressed to be small.

以下の実施形態では、住宅の壁に取り付けられる分電盤を例示し、取付状態を示す図１の上下左右を上下左右として説明する。 In the following embodiment, the distribution board attached to the wall of a house will be exemplified, and the upper, lower, left, and right of FIG.

本実施形態の分電盤は、図１に示すように前面矩形状の筐体１を備え、交流電源を直流電源に変換する交流直流変換器（ＡＣ／ＤＣコンバータ）２２と直流電力を必要とする直流機器２３を含む直流回路部とを配設する直流系配設スペースＡと、交流電源に接続された１つの主幹ブレーカ３１と複数の分岐ブレーカ３２とを有した交流回路部を専ら配設する交流系配設スペースＢとを筐体１内に有する。 The distribution board according to the present embodiment includes a front rectangular housing 1 as shown in FIG. 1, and requires an AC / DC converter (AC / DC converter) 22 that converts AC power into DC power and DC power. An AC circuit section having a DC circuit arrangement space A in which a DC circuit section including a DC device 23 is disposed, and one main breaker 31 and a plurality of branch breakers 32 connected to an AC power supply are exclusively disposed. The housing 1 has an AC system installation space B.

筐体１は、合成樹脂成形品であり図２に示すように矩形枠状の箱本体１０と、箱本体１０の前面側に結合される蓋体２０とで構成される。箱本体１０は矩形枠状の背板１１の外周縁の全周に亘って側板１２が前方に突設された形状に形成され、背板１１には矩形状に開口した開口窓１３が形成される。 The housing 1 is a synthetic resin molded product, and includes a box body 10 having a rectangular frame shape and a lid body 20 coupled to the front side of the box body 10 as shown in FIG. The box body 10 is formed in a shape in which a side plate 12 protrudes forward all around the outer peripheral edge of a rectangular frame-shaped back plate 11, and the back plate 11 is formed with an opening window 13 that opens in a rectangular shape. The

直流系配設スペースＡでは、開口窓１３の右端から左側へ一定間隔をあけた位置（ここでは、開口窓１３の左右方向の略中央部）に、開口窓１３の上下両端間に架設され上端部および下端部を固定ねじ１７ａでそれぞれ固定した中桟１７Ａを配置してある。この中桟１７Ａと、開口窓１３の右端より右側方の背板１１との間に後述の取付台２００が配設されている。 In the direct current system installation space A, the upper end of the opening window 13 is installed between the upper and lower ends of the opening window 13 at a position spaced apart from the right end to the left side of the opening window 13 (here, approximately the center in the left-right direction of the opening window 13). An intermediate rail 17A is provided in which the upper and lower ends are fixed with fixing screws 17a. A mounting base 200 which will be described later is disposed between the middle rail 17 </ b> A and the back plate 11 on the right side of the right end of the opening window 13.

ここで、直流系配設スペースＡにおいて開口窓１３より右側に位置する背板１１および中桟１７Ａには、それぞれ上下２個の支持台１４ａ、１５ａが突設され、両支持台１４ａ、１５ａの周囲にはそれぞれ断面Ｌ字状であって矩形領域の角部をなすように配列されたガイド壁１４ｂ、１５ｂが形成される。上側の支持台１４ａには下方に隣接して背板１１からの突出寸法が支持台１４ａよりもやや大きい抜止ボス１４ｃが形成される。また、下側の支持台１５ａの周囲に設けたガイド壁１５ｂの前端面には下半分程度の受け片１５ｃが連続一体に形成されている。 Here, in the DC system installation space A, two upper and lower support bases 14a and 15a protrude from the back plate 11 and the middle rail 17A located on the right side of the opening window 13, respectively. Guide walls 14b and 15b each having an L-shaped cross section and arranged so as to form a corner of a rectangular region are formed around the periphery. The upper support 14a is formed with a retaining boss 14c adjacent to the lower side and having a protruding dimension from the back plate 11 slightly larger than that of the support 14a. Further, a receiving piece 15c of about the lower half is formed continuously and integrally on the front end surface of the guide wall 15b provided around the lower support base 15a.

取付台２００は、左右両側縁の上下両端部にそれぞれ支持片２０１が突設されており、各支持片２０１には、支持台１４ａ、１５ａに螺入される取付ねじ２５を挿通させるためのだるま孔からなる取付孔２０１ａがそれぞれ形成されており、これらの取付孔２０１ａを挿通させた取付ねじ２５を締め付けることにより箱本体１０に取付台２００を取り付けるようになっている。また、取付台２００の取付位置は上述のガイド壁１４ｂ、１５ｂに合わせることで容易に位置決めできる。また取付孔２０１ａの大径部には上述の抜止ボス１４ｃが挿入され、支持片２０１が箱本体１０に対して回り止めされる。 The mounting base 200 has support pieces 201 projecting from the upper and lower ends of the left and right side edges, and each support piece 201 has a dharma through which mounting screws 25 inserted into the support bases 14a and 15a are inserted. Mounting holes 201a each having a hole are formed, and the mounting base 200 is attached to the box body 10 by tightening the mounting screws 25 inserted through the mounting holes 201a. Moreover, the mounting position of the mounting base 200 can be easily positioned by matching the above-described guide walls 14b and 15b. Further, the above-described retaining boss 14 c is inserted into the large diameter portion of the mounting hole 201 a, and the support piece 201 is prevented from rotating with respect to the box body 10.

この取付台２００は交流直流変換器２２および直流機器２３を取り付けるためのものである。交流直流変換器２２の器体２２ｄ、直流機器２３の器体２３ｄは図３に示すようにそれぞれ直方体状に形成されており、交流直流変換器２２および直流機器２３の取り付けは、それぞれの器体２２ｄ、２３ｄの上下両端部の左右両端部にそれぞれ設けた取付片２２ｅ、２３ｅの取付孔２２ｆ、２３ｆに挿通させた取付ねじ（図示せず）を取付台２００に締め付けることにより行われる。本実施形態では１つの筐体１内に複数台（ここでは３台）の直流機器２３が収納されており、これら複数台の直流機器２３と交流直流変換器２２とは左右方向に並べて配置される。なお、器体２２ｄ、２３ｄの背面は取付台２００に当接できるように平坦面となっている。 The mounting base 200 is for mounting the AC / DC converter 22 and the DC device 23. The body 22d of the AC / DC converter 22 and the body 23d of the DC device 23 are formed in a rectangular parallelepiped shape as shown in FIG. 3, and the AC / DC converter 22 and the DC device 23 are attached to the respective bodies. This is done by tightening mounting screws (not shown) inserted through mounting holes 22f and 23f of mounting pieces 22e and 23e respectively provided at the left and right end portions of the upper and lower end portions of 22d and 23d to the mounting base 200. In the present embodiment, a plurality of (here, three) DC devices 23 are accommodated in one casing 1, and the plurality of DC devices 23 and the AC / DC converter 22 are arranged side by side in the left-right direction. The The back surfaces of the container bodies 22d and 23d are flat so that they can come into contact with the mounting base 200.

本実施形態で用いる直流機器２３は、たとえばＬＡＮ用通信モジュール、インターネットに接続するためのゲートウェイ、ルータ等のインターネット用通信モジュール、無線データ通信のための無線通信モジュール、ＢＳ・ＣＳ・ＣＡＴＶのブースタ等の映像系ユニットなどであって、前面にはＲＪ−４５に対応したＬＡＮケーブル接続用モジュラージャック、電源スイッチの操作ハンドル等を有する機能面を露出させているが、ここでは機能面の図示を省略している。さらに、直流機器２３は器体２３ｄの前面の上部に直流電源を接続するための電源接続端子部２４を有し、この電源接続端子部２４が交流直流変換器２２の出力端子部（後述する）に接続される。 The DC device 23 used in this embodiment includes, for example, a LAN communication module, a gateway for connecting to the Internet, an Internet communication module such as a router, a wireless communication module for wireless data communication, a BS / CS / CATV booster, etc. The functional surface having a modular jack for LAN cable connection corresponding to RJ-45, the operation handle of the power switch, etc. is exposed on the front surface, but the functional surface is not shown here. is doing. Further, the DC device 23 has a power connection terminal portion 24 for connecting a DC power source to the upper part of the front surface of the body 23d, and this power connection terminal portion 24 is an output terminal portion (described later) of the AC / DC converter 22. Connected to.

交流直流変換器２２は、図４に示すように一対の接続線２６が接続される入力端子部２２ｇと、それぞれ２本１組の外部配線２７が接続される複数の外部接続端子部２２ｈと、直流機器２３の電源接続端子部２４に接続される出力端子部２８とを有し、入力端子部２２ｇから入力される交流電源を変換部２２ｉにて直流電源に変換して外部接続端子部２２ｈと出力端子部２８とに出力するものである。つまり、変換部２２ｉで変換された直流電源は、交流直流変換器２２内において複数系統の直流配電路に分配されており、各系統の直流配電路にそれぞれ外部接続端子部２２ｈあるいは出力端子部２８が設けられている。したがって、筐体１内に配置され交流直流変換部２２に接続される直流機器２３においては勿論のこと、たとえば防犯や防災センサ等のセンサ、光源がＬＥＤからなるＬＥＤ照明端末など筐体１の外部に配置される直流機器２３’（図３参照）においても外部配線２７を介して交流直流変換器２２に接続すれば、交流直流変換器２２からの直流電源供給を受けて動作可能となる。 As shown in FIG. 4, the AC / DC converter 22 includes an input terminal portion 22g to which a pair of connection wires 26 are connected, a plurality of external connection terminal portions 22h to which two sets of external wires 27 are connected, And an output terminal portion 28 connected to the power supply connection terminal portion 24 of the DC device 23. The AC power input from the input terminal portion 22g is converted into a DC power source by the conversion portion 22i, and the external connection terminal portion 22h. The data is output to the output terminal unit 28. That is, the DC power converted by the converter 22i is distributed to a plurality of DC distribution paths in the AC / DC converter 22, and the external connection terminal section 22h or the output terminal section 28 is connected to each system DC distribution path. Is provided. Therefore, in addition to the DC device 23 arranged in the housing 1 and connected to the AC / DC converter 22, for example, a sensor such as a crime prevention or disaster prevention sensor, an LED lighting terminal whose light source is an LED, etc. The DC device 23 ′ (see FIG. 3) disposed in FIG. 3 can be operated by receiving a DC power supply from the AC / DC converter 22 if connected to the AC / DC converter 22 via the external wiring 27.

また、本実施形態で用いる交流直流変換器２２は、交流電源を直流電源に変換する変換部２２ｉだけでなく、変換部２２ｉからの直流電源を昇圧もしくは降圧するＤＣ／ＤＣ変換部２２ｊを各系統ごとに有しており、これにより安定した電圧で直流電力を供給することができる。ＤＣ／ＤＣ変換部２２ｊは各系統ごとに直流電源の電圧を所望の電圧に設定するものである。ただし、ここでは１組の外部配線２７を、筐体１の外部に配置された直流の外部電源ＤＣ（たとえば、太陽電池など）に接続することで、交流直流変換器２２への交流電源供給が停止したときでも外部電源ＤＣからの電力供給を受けて交流直流変換器２２を継続動作可能としており、この外部電源ＤＣに接続される外部接続端子部２２ｈの系統にはＤＣ／ＤＣ変換部２２ｊを設けていない。背板１１の上端部には配線孔１１ａが貫設されており、外部配線２７はこの配線孔１１ａを通して筐体１の外部に引き出される。 Further, the AC / DC converter 22 used in the present embodiment includes not only the converter 22i that converts AC power into DC power but also a DC / DC converter 22j that boosts or lowers DC power from the converter 22i in each system. Therefore, DC power can be supplied with a stable voltage. The DC / DC converter 22j sets the voltage of the DC power supply to a desired voltage for each system. However, the AC power supply to the AC / DC converter 22 can be performed by connecting a set of external wirings 27 to a DC external power source DC (for example, a solar cell) disposed outside the housing 1. Even when the operation is stopped, the AC / DC converter 22 can be continuously operated by receiving power supply from the external power supply DC, and the DC / DC conversion section 22j is connected to the system of the external connection terminal section 22h connected to the external power supply DC. Not provided. A wiring hole 11a is provided in the upper end portion of the back plate 11, and the external wiring 27 is drawn out of the housing 1 through the wiring hole 11a.

さらに、この交流直流変換器２２は、各系統ごとにたとえば電流制限回路からなる過電流保護装置２２ｋを有している。過電流保護装置２２ｋは、各系統ごとに閾値を設定して、閾値を超える過電流から交流直流変換器２２を保護するものである。過電流保護装置２２ｋは、ＤＣ／ＤＣ変換部２２ｊの設けられている系統においては、ＤＣ／ＤＣ変換部２２ｊの出力と外部接続端子部２２ｈあるいは出力端子部２８との間に設けられる。 Further, the AC / DC converter 22 has an overcurrent protection device 22k including, for example, a current limiting circuit for each system. The overcurrent protection device 22k sets a threshold value for each system and protects the AC / DC converter 22 from an overcurrent exceeding the threshold value. The overcurrent protection device 22k is provided between the output of the DC / DC conversion unit 22j and the external connection terminal unit 22h or the output terminal unit 28 in the system in which the DC / DC conversion unit 22j is provided.

なお、本実施形態では変換部２２ｉで変換された直流電源が交流直流変換器２２の内部で複数系統の直流配電路に分配される例を示しているが、この例に限らず、交流直流変換器２２の出力を一系統とし、交流直流変換器２２と別に設けた端子台において交流直流変換器２２からの直流電源を複数系統の直流配電路に分配するようにしてもよい。この場合、ＤＣ／ＤＣ変換部２２ｊや過電流保護装置２２ｋは交流直流変換器２２とは別に設けられる。 In the present embodiment, an example is shown in which the DC power converted by the converter 22i is distributed to a plurality of DC power distribution paths inside the AC / DC converter 22, but is not limited to this example. The output of the converter 22 may be a single system, and a DC power source from the AC / DC converter 22 may be distributed to a plurality of DC power distribution paths at a terminal block provided separately from the AC / DC converter 22. In this case, the DC / DC converter 22j and the overcurrent protection device 22k are provided separately from the AC / DC converter 22.

上述した入力端子部２２ｇは図１に示すように交流直流変換器２２の器体２２ｄの下面側、外部接続端子部２２ｈは器体２２ｄの上面側にそれぞれ設けられている。入力端子部２２ｇおよび外部接続端子部２２ｈはいわゆる速結端子からなり、接続線２６、外部配線２７を簡単に接続可能としてある。出力端子部２８は器体２２ｄの前面の上部に設けられている。ここで、入力端子部２２ｇに一端が接続される接続線２６の他端はいずれか１つの分岐ブレーカ３２の負荷側端子部（後述する）に接続され、これにより交流直流変換器２２の入力端子部２２ｇには分岐ブレーカ３２から交流電源が入力される。つまり、交流直流変換器２２は下部において交流電源の入力を受け、上部において直流電源の出力を行うので、交流電源と直流電源との間の絶縁距離を比較的長く確保することができる。また、直流電源を出力する外部接続端子部２２ｈと出力端子部２８とが器体２２ｄの上部にまとめて配置されているので、交流直流変換器２２の内部回路を簡素化することができる。なお、交流直流変換器２２の器体２２ｄの前面には、交流直流変換器２２の動作状態（通電の有無等）を示す表示部、交流直流変換器２２の動作状態の設定操作用の操作部などを有する機能面を露出させているが、ここでは機能面の図示を省略している。 As shown in FIG. 1, the input terminal portion 22g described above is provided on the lower surface side of the housing 22d of the AC / DC converter 22, and the external connection terminal portion 22h is provided on the upper surface side of the housing 22d. The input terminal portion 22g and the external connection terminal portion 22h are so-called quick connection terminals, and the connection line 26 and the external wiring 27 can be easily connected. The output terminal part 28 is provided in the upper part of the front surface of the container body 22d. Here, the other end of the connection line 26 whose one end is connected to the input terminal portion 22g is connected to a load side terminal portion (described later) of any one of the branch breakers 32, whereby the input terminal of the AC / DC converter 22 is connected. AC power is input from the branch breaker 32 to the unit 22g. That is, the AC / DC converter 22 receives the input of the AC power source at the lower portion and outputs the DC power source at the upper portion, so that the insulation distance between the AC power source and the DC power source can be secured relatively long. Further, since the external connection terminal portion 22h for outputting the direct current power supply and the output terminal portion 28 are collectively arranged on the upper portion of the body 22d, the internal circuit of the alternating current direct current converter 22 can be simplified. In addition, on the front surface of the housing 22d of the AC / DC converter 22, a display unit that indicates an operation state (whether or not energized) of the AC / DC converter 22 and an operation unit for setting the operation state of the AC / DC converter 22 are provided. However, the functional surface is not shown here.

ところで、本実施形態では、交流直流変換器２２の出力端子部２８と直流機器２３の電源接続端子部２４とを電気的に接続するために、外部配線２７や接続線２６のような電線ではなく金属板からなる導電バー２９（直流側導電バー）を用いる。導電バー２９は直流機器２３とともに直流回路部を構成する。 By the way, in this embodiment, in order to electrically connect the output terminal portion 28 of the AC / DC converter 22 and the power connection terminal portion 24 of the DC device 23, it is not an electric wire such as the external wiring 27 or the connecting wire 26. A conductive bar 29 (DC side conductive bar) made of a metal plate is used. The conductive bar 29 constitutes a DC circuit unit together with the DC device 23.

具体的には、交流直流変換器２２の器体２２ｄの前面における上方に偏った位置には左右方向に延長された端子溝２８ａが形成され、直流機器２３の器体２３ｄの前面における上方に偏った位置にも左右方向に延長された端子溝２４ａが形成されている。各端子溝２４ａ、２８ａは各器体２２ｄ、２３ｄの左右両端間に亘って上下方向に２本ずつ並設されており、各々の底面の一部に電源接続端子部２４、出力端子部２８がそれぞれ設けられている。さらに、交流直流変換器２２の器体２２ｄと直流機器２３の器体２３ｄとは、取付台２００からの突出高さが同一となるように形成されている。そして、交流直流変換器２２および直流機器２３は、取付台２００に取り付けられた状態で交流直流変換器２２の端子溝２８ａと直流機器２３の端子溝２４ａとが左右方向に連続するように上下方向に位置合わせされる。 Specifically, a terminal groove 28a extending in the left-right direction is formed at a position biased upward on the front surface of the housing 22d of the AC / DC converter 22, and biased upward on the front surface of the housing 23d of the DC device 23. A terminal groove 24a extending in the left-right direction is also formed at the same position. Each of the terminal grooves 24a, 28a is arranged in parallel in the vertical direction across the left and right ends of each container body 22d, 23d, and the power connection terminal portion 24 and the output terminal portion 28 are formed on a part of each bottom surface. Each is provided. Further, the housing 22d of the AC / DC converter 22 and the housing 23d of the DC device 23 are formed so that the protruding height from the mounting base 200 is the same. The AC / DC converter 22 and the DC device 23 are installed in the vertical direction so that the terminal groove 28a of the AC / DC converter 22 and the terminal groove 24a of the DC device 23 are continuous in the left-right direction in a state of being attached to the mounting base 200. To be aligned.

導電バー２９は、少なくとも端子溝２４ａの長手方向の寸法より長く延長されており、端子溝２４ａと端子溝２８ａとに跨る形で端子溝２４ａ、２８ａの底面に沿って端子溝２４ａ、２８ａ内に配置される。導電バー２９の長手方向の両端部には図５に示すようにそれぞれＵ字状の切込２９ａが形成されている。而して、一方の切込２９ａに交流直流変換器２２の出力端子部２８の端子ねじを通し、他方の切込２９ａに直流機器２３の電源接続端子部２４の端子ねじを通した状態で両端子ねじを締め付ければ、導電バー２９の各端部にそれぞれ出力端子部２８、電源接続端子部２４が接続され、出力端子部２８と電源接続端子部２４とが電気的に接続されることになる。 The conductive bar 29 extends at least longer than the longitudinal dimension of the terminal groove 24a, and extends in the terminal grooves 24a and 28a along the bottom surfaces of the terminal grooves 24a and 28a so as to straddle the terminal grooves 24a and 28a. Be placed. As shown in FIG. 5, U-shaped cuts 29a are formed at both ends in the longitudinal direction of the conductive bar 29, respectively. Thus, the terminal screw of the output terminal portion 28 of the AC / DC converter 22 is passed through one of the cuts 29a, and the both ends of the power supply connection terminal portion 24 of the DC device 23 are passed through the other cut 29a. When the female screw is tightened, the output terminal portion 28 and the power connection terminal portion 24 are connected to the respective end portions of the conductive bar 29, and the output terminal portion 28 and the power connection terminal portion 24 are electrically connected. Become.

要するに、交流直流変換器２２と直流機器２３とを左右方向に連接し、導電バー２９を端子溝２４ａ、２８ａ内に取り付ければ、出力端子部２８と電源接続端子部２４とを接続することができ、交流直流変換器２２と直流機器２３との接続作業が比較的容易になる。ここにおいて、直流機器２３の端子溝２４ａは器体２３ｄの前面における上方に偏った位置に形成されているので、直流機器２３は導電バー２９の下方に偏って配設されることとなる。なお、交流直流変換器２２の端子溝２８ａを器体２２ｄの上面に形成するとともに、直流機器２３の端子溝２４ａを器体２３ｄの上面に形成し、直流機器２３が導電バー２９の下方に配設されるようにしてもよい。 In short, the output terminal portion 28 and the power connection terminal portion 24 can be connected by connecting the AC / DC converter 22 and the DC device 23 in the left-right direction and attaching the conductive bar 29 in the terminal grooves 24a, 28a. The connection work between the AC / DC converter 22 and the DC device 23 becomes relatively easy. Here, since the terminal groove 24 a of the DC device 23 is formed at an upwardly biased position on the front surface of the vessel body 23 d, the DC device 23 is biased below the conductive bar 29. In addition, the terminal groove 28a of the AC / DC converter 22 is formed on the upper surface of the container body 22d, and the terminal groove 24a of the DC device 23 is formed on the upper surface of the container body 23d, and the DC device 23 is arranged below the conductive bar 29. It may be provided.

また、本実施形態では筐体１内に上述したように複数台の直流機器２３を収納しており、交流直流変換器２２の出力端子部２８に接続された導電バー２９に全ての直流機器２３を接続することで、全ての直流機器２３に対して直流電源が供給されるようにしている。 In the present embodiment, a plurality of DC devices 23 are housed in the housing 1 as described above, and all the DC devices 23 are connected to the conductive bar 29 connected to the output terminal portion 28 of the AC / DC converter 22. Is connected to supply power to all the DC devices 23.

すなわち、複数台の直流機器２３は、取付台２００に取り付けられた状態で交流直流変換器２２の端子溝２８ａと全ての直流機器２３の端子溝２４ａとが左右方向に連続するように左右方向に一列に並設され、上下方向に位置合わせされる。而して、一方の切込２９ａに直流機器２３の電源接続端子部２４の端子ねじを通し、他方の切込２９ａに隣接する直流機器２３の電源接続端子部２４の端子ねじを通した状態で両端子ねじを締め付ければ、導電バー２９の各端部にそれぞれ隣接する２台の直流機器２３の電源接続端子部２４が接続され、隣接する直流機器２３の電源接続端子部２４同士が電気的に接続されることになる。 In other words, the plurality of DC devices 23 are mounted in the left-right direction so that the terminal grooves 28a of the AC / DC converter 22 and the terminal grooves 24a of all the DC devices 23 are continuous in the left-right direction when attached to the mounting base 200. They are arranged in a row and aligned in the vertical direction. Thus, the terminal screw of the power connection terminal portion 24 of the DC device 23 is passed through one of the cuts 29a, and the terminal screw of the power connection terminal portion 24 of the DC device 23 adjacent to the other cut 29a is passed. When both terminal screws are tightened, the power connection terminal portions 24 of the two DC devices 23 adjacent to each end of the conductive bar 29 are connected, and the power connection terminal portions 24 of the adjacent DC devices 23 are electrically connected to each other. Will be connected to.

このように隣接する直流機器２３の電源接続端子部２４同士を導電バー２９で接続することにより、１台の直流機器２３を交流直流変換器２２に接続すれば、導電バー２９に接続された残りの直流機器２３に対しても送り配線により直流電源が供給される。要するに、本実施形態の交流直流変換器２２は、複数台の直流機器２３を有した電力消費手段に対して直流電源を供給する電力供給手段を構成する。 In this way, by connecting the power connection terminals 24 of the adjacent DC devices 23 with the conductive bar 29, if one DC device 23 is connected to the AC / DC converter 22, the remaining connected to the conductive bar 29. The direct current power is also supplied to the direct current equipment 23 through the feed wiring. In short, the AC / DC converter 22 of the present embodiment constitutes a power supply unit that supplies a DC power source to a power consumption unit having a plurality of DC devices 23.

なお、本実施形態では導電バー２９の一方の切込２９ａを他方よりも深くし、当該一方の切込２９ａに沿って端子ねじの締め付け位置を調節可能とすることにより、出力端子部２８と電源接続端子部２４との間隔、あるいは電源接続端子２４同士の間隔が変わっても同じ導電バー２９で接続できるようにしている。 In the present embodiment, one notch 29a of the conductive bar 29 is made deeper than the other, and the tightening position of the terminal screw can be adjusted along the one notch 29a. Even if the interval between the connection terminal portions 24 or the interval between the power supply connection terminals 24 changes, the same conductive bar 29 can be used for connection.

一方、交流系配設スペースＢでは、直流系配設スペースＡの中桟１７Ａに近接する右側位置に中桟１７Ｂを、また開口窓１３の左端から後述する主幹ブレーカ３１の幅寸法（左右方向の寸法）よりやや大きな間隔をあけた位置に中桟１７Ｃをそれぞれ開口窓１３の上下両端間に架設して、固定ねじ１７ａで固定してある。 On the other hand, in the AC system installation space B, the middle rail 17B is located at the right side position close to the middle rail 17A of the DC system installation space A, and the width dimension (right and left direction) of the main breaker 31 described later from the left end of the opening window 13 The intermediate rails 17C are installed between the upper and lower ends of the opening window 13 at positions slightly spaced from each other (dimension) and fixed with fixing screws 17a.

この中桟１７Ｂ、１７Ｃ間には複数個の分岐ブレーカ３２を配設し、中桟１７Ｃと、開口窓１３の左端より左側方の背板１１との間には主幹ブレーカ３１および後述の一次送りブレーカ３３を配設してある。 A plurality of branch breakers 32 are arranged between the middle rails 17B and 17C, and a main breaker 31 and a primary feed described later are provided between the middle rail 17C and the back plate 11 on the left side from the left end of the opening window 13. A breaker 33 is provided.

ここで、交流系配設スペースＢにおいて開口窓１３より左側に位置する背板１１および中桟１７Ｂには、それぞれ上下２個の支持台１４ａ、１５ａが突設される。この支持台１４ａ、１５ａは直流系配設スペースＡに設けたものと同形状のものであって、両支持台１４ａ、１５ａの周囲にはそれぞれ断面Ｌ字状であって矩形領域の角部をなすように配列されたガイド壁１４ｂ、１５ｂも形成される。開口窓１３の上下の周縁には左右方向に等ピッチで多数個の通し孔１６が形成されており、これら通し孔１６は、各中桟１７Ａ〜１７Ｃを固定する固定ねじ１７ａが螺合される。 Here, in the AC system installation space B, two upper and lower support bases 14a and 15a project from the back plate 11 and the middle rail 17B located on the left side of the opening window 13, respectively. The support bases 14a and 15a have the same shape as that provided in the direct current system installation space A, and each support base 14a and 15a has an L-shaped cross section around the support bases 14a and 15a. Guide walls 14b and 15b arranged so as to form are also formed. A large number of through holes 16 are formed in the left and right edges of the opening window 13 at equal pitches in the left and right direction, and these through holes 16 are screwed with fixing screws 17a for fixing the middle rails 17A to 17C. .

また、交流系配設スペースＢの中桟１７Ｃには上下２個の載置台１８ａ、１９ａが形成され、下側の載置台１９ａには受け片１５ｃと同様に断面Ｌ字状に形成された受け片１９ｂが設けられる。 In addition, the upper and lower mounting bases 18a and 19a are formed in the middle rail 17C of the AC system installation space B, and the lower mounting base 19a has a L-shaped cross section similar to the receiving piece 15c. A piece 19b is provided.

開口窓１３の左側の支持台１４ａ、１５ａと中桟１７Ｃに設けた載置台１８ａ、１９ａとの間には主幹ブレーカ３１を取り付ける架台４０が架設され、中桟１７Ｂの支持台１４ａ、１５ａと中桟１７Ｃに設けた載置台１８ａ、１９ａとの間には分岐ブレーカ３２を取り付ける架台５０が架設される。ここにおいて、架台４０と架台５０とは互いに連結されて一体化され、支持台１４ａ、１５ａを利用して背板１１と中桟１７Ｂとの間に架設される。つまり、架台４０と架台５０とは連結された状態で全体として矩形状を成し、左右両側縁の上下両端部にそれぞれ支持片４１、５１を突設した形になるので、各支持片４１、５１に設けた取付孔４１ａ、５１ａに取付ねじ２５を挿通させて各支持片４１、５１を支持台１４ａ、１５ａにねじ固定することにより、箱本体１０に架台４０および架台５０が取り付けられる。また、架台４０および架台５０の取付位置はガイド壁１４ｂ、１５ｂに合わせることで容易に位置決めできる。また取付孔４１ａ、５１ａの大径部には上述の抜止ボス１４ｃが挿入され、支持片４１、５１が箱本体１０に対して回り止めされる。 Between the support bases 14a and 15a on the left side of the opening window 13 and the mounting bases 18a and 19a provided on the middle rail 17C, a base 40 for mounting the main breaker 31 is installed, and the middle of the support bases 14a and 15a of the middle rail 17B. A gantry 50 to which the branch breaker 32 is attached is erected between the mounting tables 18a and 19a provided on the crosspiece 17C. Here, the gantry 40 and the gantry 50 are connected and integrated with each other, and are laid between the back plate 11 and the middle rail 17B using the support tables 14a and 15a. That is, the gantry 40 and the gantry 50 are connected together to form a rectangular shape as a whole, and the support pieces 41 and 51 protrude from the upper and lower ends of the left and right side edges, respectively. The mount 40 and the mount 50 are attached to the box body 10 by inserting the mounting screws 25 into the mounting holes 41a and 51a provided in the 51 and screwing the support pieces 41 and 51 to the support bases 14a and 15a. The mounting positions of the gantry 40 and the gantry 50 can be easily positioned by matching the guide walls 14b and 15b. Further, the above-described retaining boss 14 c is inserted into the large diameter portion of the mounting holes 41 a and 51 a, and the support pieces 41 and 51 are prevented from rotating with respect to the box body 10.

箱本体１０に被着される蓋体２０は後端部外周面が箱本体１０の側板１２の前端部外周面にほぼ一致し、図６に示すように矩形状に形成された４個の窓孔２１ａ〜２１ｄが開口する。窓孔２１ａは箱本体１０に収納された主幹ブレーカ３１および一次送りブレーカ３３のハンドル３１ａを操作可能とするために蓋体２０の前面側に露出させ、窓孔２１ｂ、２１ｃは各分岐ブレーカ３２のハンドル３２ａを操作可能とするために蓋体２０の前面側に露出させ、窓孔２１ｄは交流直流変換器２２の前面および直流機器２３の上記機能面を前面側に露出させる。 The lid 20 attached to the box main body 10 has four rear windows whose outer peripheral surfaces substantially coincide with the outer peripheral surface of the front end of the side plate 12 of the box main body 10 and are formed in a rectangular shape as shown in FIG. Holes 21a to 21d are opened. The window hole 21a is exposed to the front side of the lid 20 so that the main breaker 31 and the handle 31a of the primary feed breaker 33 housed in the box body 10 can be operated, and the window holes 21b and 21c are formed on the branch breakers 32. The handle 32a is exposed to the front side of the lid 20 so that the handle 32a can be operated, and the window hole 21d exposes the front side of the AC / DC converter 22 and the functional surface of the DC device 23 to the front side.

ところで、架台４０は、開口窓１３の上下方向の寸法よりも上下方向の寸法が小さい縦長の長方形状に板金（鉄板）により形成され、主幹ブレーカ３１は架台４０に対して固定ねじ４３を用いて取り付けられる。主幹ブレーカ３１は、前面に設けられ端子ねじを有した電源側端子部３１ｂと、右端部に設けられた出力側端子部（図示せず）と、電源側端子部３１ｂと出力側端子部との間に介在する接点（図示せず）とを備え、接点が開閉することにより電源側端子部３１ｂと出力側端子部との間の導通・非導通を切り替えるものである。この接点は、上述のハンドル３１ａの操作によっても開閉する。電源側端子部３１ｂには交流電源の電力線（図示せず）が接続され、出力側端子部には後述の導電バー９０ａ〜９０ｃが接続される。 By the way, the gantry 40 is formed of a sheet metal (iron plate) in a vertically long rectangular shape whose vertical dimension is smaller than the vertical dimension of the opening window 13, and the main breaker 31 uses a fixing screw 43 to the gantry 40. It is attached. The main breaker 31 includes a power supply side terminal portion 31b provided with a terminal screw on the front surface, an output side terminal portion (not shown) provided on the right end, a power supply side terminal portion 31b, and an output side terminal portion. It has a contact (not shown) interposed therebetween, and switches between conduction and non-conduction between the power supply side terminal portion 31b and the output side terminal portion by opening and closing the contact. This contact is also opened and closed by operating the handle 31a. A power line (not shown) of an AC power source is connected to the power supply side terminal portion 31b, and conductive bars 90a to 90c described later are connected to the output side terminal portion.

架台４０の左側部には、主幹ブレーカ３１が遮断された状態でも電源を確保することができるように、主幹ブレーカ３１の電源側（一次側）から主幹ブレーカ３１を通さずに電源を得る電源系を設けてあり、この電源系には一次送りブレーカ３３が挿入される。 A power supply system that obtains power from the power source side (primary side) of the main core breaker 31 without passing through the main circuit breaker 31 so that the power source can be secured even when the main circuit breaker 31 is cut off. The primary feed breaker 33 is inserted into this power supply system.

一方、分岐ブレーカ３２を取り付ける架台５０は、図７に示す形状に板金（鉄板）により形成されたものであり、右端縁の上端部および下端部に支持片５１が突設され、左端縁の上端部および下端部に連結片５２が突設されている。支持片５１には上述したように取付孔５１ａが形成されるが、連結片５２には連結突起５２ａが突設され、連結突起５２ａの右側近傍には止めねじ孔５２ｂが形成されている。連結突起５２ａは架台４０の連結片４２に設けた連結孔４２ａにおける大径部に挿入され、止めねじ孔５２ｂには止め孔（図示せず）を通して図１に示すように連結ねじ５３が螺合する。 On the other hand, the gantry 50 to which the branch breaker 32 is attached is formed by sheet metal (iron plate) in the shape shown in FIG. 7, and support pieces 51 project from the upper end and lower end of the right end edge, and the upper end of the left end edge. A connecting piece 52 projects from the bottom and bottom ends. As described above, the mounting hole 51a is formed in the support piece 51, but the connection protrusion 52a protrudes from the connection piece 52, and a set screw hole 52b is formed near the right side of the connection protrusion 52a. The connection protrusion 52a is inserted into the large diameter portion of the connection hole 42a provided in the connection piece 42 of the mount 40, and the connection screw 53 is screwed into the set screw hole 52b through a set hole (not shown) as shown in FIG. To do.

したがって、架台５０の連結片５２の前面側に架台４０の連結片４２を重ね合わせ、連結突起５２ａを連結孔４２ａに挿入するとともに、止め孔（図示せず）を通して連結ねじ５３を止めねじ孔５２ｂに螺合させることによって、架台４０と架台５０とが結合される。 Accordingly, the connecting piece 42 of the gantry 40 is superposed on the front surface side of the connecting piece 52 of the gantry 50, the connecting protrusion 52a is inserted into the connecting hole 42a, and the connecting screw 53 is set through the fixing hole (not shown). The gantry 40 and the gantry 50 are coupled by being screwed together.

架台５０の上下方向の中央部には４個の矩形状の貫き孔５４が左右方向に並設され、架台５０の上下両端部には左右方向において貫き孔５４とほぼ同じ位置で保持孔５５が形成されている。貫き孔５４および保持孔５５は架台５０の前面側に載置される合成樹脂成形品からなるバー支持部材８０を取り付けるために用いられる。保持孔５５は上下方向の寸法が左右方向の寸法よりも大きい長孔状に形成され、下端部における左右のいずれか一方の側縁から抜止片５５ａが突設された形状に形成されている。 Four rectangular through holes 54 are juxtaposed in the left-right direction at the center in the vertical direction of the gantry 50, and holding holes 55 are provided at the upper and lower ends of the gantry 50 at substantially the same positions as the through holes 54 in the left-right direction. Is formed. The through hole 54 and the holding hole 55 are used for attaching a bar support member 80 made of a synthetic resin molded product placed on the front side of the gantry 50. The holding hole 55 is formed in the shape of a long hole whose vertical dimension is larger than the horizontal dimension, and is formed in a shape in which a retaining piece 55a projects from either the left or right side edge at the lower end.

バー支持部材８０は、図８に示すように、上下方向の中央部に隔壁８１を有する。隔壁８１は前方に突出し左右方向に延長されており、隔壁８１における左右方向の両端部には前方に突出する支持ポスト８２が形成される。支持ポスト８２の前面（図８では上面）には凹所８２ａが形成され、凹所８２ａの底部には図示しないナットが保持されている。また、支持ポスト８２の前面には凹所８２ａの近傍に位置決め突起８２ｂが突設される。バー支持部材８０の隔壁８１には分離壁８１ａが一体に形成され、分離壁８１ａにより隔壁８１が左右方向において８区画に分割されている。 As shown in FIG. 8, the bar support member 80 has a partition wall 81 at the center in the vertical direction. The partition wall 81 projects forward and extends in the left-right direction, and support posts 82 projecting forward are formed at both ends of the partition wall 81 in the left-right direction. A recess 82a is formed on the front surface (upper surface in FIG. 8) of the support post 82, and a nut (not shown) is held at the bottom of the recess 82a. Further, a positioning protrusion 82b is provided on the front surface of the support post 82 in the vicinity of the recess 82a. A separation wall 81a is formed integrally with the partition wall 81 of the bar support member 80, and the partition wall 81 is divided into eight sections in the left-right direction by the separation wall 81a.

バー支持部材８０には上下に載置片８４が延設されており、各載置片８４の左右両端部には後方に凹没した凹所８４ａが２個ずつ形成され、各凹所８４ａの底部には図示しないナットが保持されている。各載置片８４の上下方向の中間部には隔壁８１側が後退する段差部８５が形成され、段差部８５と隔壁８１との間には左右方向に並ぶ８本の係止部８６が前方に立設される。係止部８６は左右方向においては分離壁８１ａにより分割された各区間の中間部に位置し、各係止部８６の前端部には隔壁８１に向かって突出する保持爪（図示せず）が形成される。さらに、１つおきで４個の分離壁８１ａには引掛爪８１ｂが突設される。引掛爪８１ｂは分離壁８１ａにおいて隔壁８１よりも上側では上向きに突設され、隔壁８１よりも下側では下向きに突設される。さらに、段差部８５において各引掛爪８１ｂに対向する部位には保持爪８５ａが突設される。隔壁８１の上側の載置片８４の上端縁および隔壁８１の下側の載置片８４の下端縁にはそれぞれ８個ずつのブレーカ取付片８７が並設されている。ブレーカ取付片８７の機能については後述する。 The bar support member 80 has upper and lower mounting pieces 84 extending vertically, and two left and right recesses 84a are formed in the left and right ends of each mounting piece 84. A nut (not shown) is held at the bottom. A stepped portion 85 whose back side is separated from the partition wall 81 is formed at an intermediate portion in the vertical direction of each mounting piece 84, and eight locking portions 86 arranged in the left-right direction are forwardly provided between the stepped portion 85 and the partition wall 81. Established. The locking portion 86 is positioned in the middle of each section divided by the separation wall 81a in the left-right direction, and a holding claw (not shown) protruding toward the partition wall 81 is provided at the front end portion of each locking portion 86. It is formed. Furthermore, hooking claws 81b are projected from every other four separation walls 81a. The hooking claw 81 b protrudes upward on the separation wall 81 a above the partition wall 81 and protrudes downward on the lower side of the partition wall 81. Furthermore, a holding claw 85a is projected from a portion of the stepped portion 85 that faces each hooking claw 81b. Eight breaker mounting pieces 87 are juxtaposed on the upper end edge of the mounting piece 84 on the upper side of the partition wall 81 and the lower end edge of the mounting piece 84 on the lower side of the partition wall 81. The function of the breaker mounting piece 87 will be described later.

上述の載置片８４の後面には各透孔８１ｃの周囲においてボス部（図示せず）が後方に突設される。載置片８４の後面には左右方向に直交する断面がＬ字状に形成された上下各４個ずつのスライド片（図示せず）が突設される。スライド片の上下方向の寸法は、架台５０に設けた保持孔５５において抜止片５５ａよりも上側の部分に挿入可能となるように設定される。載置片８４には各スライド片の先端部をそれぞれ前方から視認可能とする複数個の確認孔８４ｂが開口する。 On the rear surface of the mounting piece 84, a boss portion (not shown) protrudes rearward around each through hole 81c. On the rear surface of the mounting piece 84, four upper and lower slide pieces (not shown) each having a L-shaped cross section orthogonal to the left-right direction are projected. The vertical dimension of the slide piece is set so that it can be inserted into the upper part of the retaining piece 55 a in the holding hole 55 provided in the mount 50. The mounting piece 84 has a plurality of confirmation holes 84b that allow the front end of each slide piece to be visually recognized from the front.

而して、バー支持部材８０を架台５０に取り付けるに際しては、上述のスライド片を保持孔５５の上部に挿入した後に、バー支持部材８０を架台５０に対して下方にスライドさせると、スライド片が抜止片５５ａに係合し、バー支持部材８０が架台５０に結合される。また、バー支持部材８０が架台５０に結合された状態において上述のボス部が貫き孔５４に挿入される。そしてバー支持部材８０は中性極の導電バー９０ａと２本の電圧極の導電バー９０ｂ、９０ｃとを同時に保持できるようなっている。導電バー９０ａ〜９０ｃが交流側導電バーを構成する。 Thus, when the bar support member 80 is attached to the gantry 50, after the slide piece is inserted into the upper portion of the holding hole 55 and then the bar support member 80 is slid downward with respect to the gantry 50, the slide piece is The bar support member 80 is coupled to the gantry 50 by engaging with the retaining piece 55a. Further, in the state where the bar support member 80 is coupled to the gantry 50, the above-described boss portion is inserted into the through hole 54. The bar support member 80 can simultaneously hold the neutral conductive bar 90a and the two voltage conductive bars 90b and 90c. The conductive bars 90a to 90c constitute an AC side conductive bar.

ここで中性極の導電バー９０ａは二つの支持ポスト８２の間に架設される。導電バー９０ａには長手方向において等ピッチで挿通孔９１が形成されている。導電バー９０ａの両端部には端子片９２が延設され、端子片９２には端子ねじ９３が挿入される端子孔９４が形成されている。端子ねじ９３は凹所８２ａの底部に設けたナットに螺合し、これによって導電バー９０ａが支持ポスト８２に固定される。 Here, the neutral conductive bar 90 a is installed between the two support posts 82. Insertion holes 91 are formed in the conductive bar 90a at equal pitches in the longitudinal direction. A terminal piece 92 extends from both ends of the conductive bar 90a, and a terminal hole 94 into which a terminal screw 93 is inserted is formed in the terminal piece 92. The terminal screw 93 is screwed into a nut provided at the bottom of the recess 82 a, whereby the conductive bar 90 a is fixed to the support post 82.

一方、電圧極の各導電バー９０ｂ、９０ｃは隔壁８１の上下においてそれぞれ載置片８４の前面に重ねて配置される。導電バー９０ｂ、９０ｃの長手方向の両端部にはそれぞれ端子孔９５が形成される。端子孔９５には端子ねじ９６が挿入され、端子ねじ９６は載置片８４に設けた凹所８４ａの底部に保持されているナットに螺合する。さらに、導電バー９０ｂ、９０ｃの幅方向の一側縁には前方に向かって接続片９７が突設される。接続片９７は左右方向において分離壁８１ａにより分割された各区間ごとに突設される。接続片９７には２本の挿入端子片９７ａ、９７ｂが延設され、一方の端子挿入片９７ａは接続片９７から導電バー９０ｂ、９０ｃに対向するように接続片９７に対して直交方向に延長され、他方の端子挿入片９７ｂは導電バー９０ｂ、９０ｃから離れるように接続片９７に対して直交方向に延長される。また、導電バー９０ｂ、９０ｃから端子挿入片９７ｂまでの距離は端子挿入片９７ａまでの距離よりも大きくなっている。したがって、端子挿入片９７ａ、９７ｂは前後に位置することになる。さらに、導電バー９０ｂ、９０ｃを載置片８４に取り付けた状態では、互いに他方の導電バー９０ｂ、９０ｃに設けた端子挿入片９７ａ、９７ｂが前後に位置し、且つ両端子挿入片９７ａ、９７ｂの先端縁の位置が上下左右において揃うように位置する。このような配置によって、前後に並ぶ二つの端子挿入片９７ａ、９７ｂは互いに他の導電バー９０ｂ、９０ｃに接続されていることになる。ここで、支持ポスト８２に取り付けられた中性極の導電バー９０ａの幅方向の端縁も上下方向における位置が両端子挿入片９７ａ、９７ｂの先端縁と一致する。なお、異なる導電バー９０ｂ、９０ｃに設けた接続片９７は隔壁８１によって絶縁される。 On the other hand, the conductive bars 90 b and 90 c of the voltage electrode are arranged on the front surface of the mounting piece 84 above and below the partition wall 81, respectively. Terminal holes 95 are respectively formed at both ends in the longitudinal direction of the conductive bars 90b and 90c. A terminal screw 96 is inserted into the terminal hole 95, and the terminal screw 96 is screwed into a nut held at the bottom of a recess 84 a provided in the mounting piece 84. Further, a connecting piece 97 is projected from one side edge in the width direction of the conductive bars 90b, 90c toward the front. The connecting piece 97 protrudes for each section divided by the separation wall 81a in the left-right direction. Two insertion terminal pieces 97a and 97b are extended from the connection piece 97, and one terminal insertion piece 97a extends from the connection piece 97 in a direction orthogonal to the connection piece 97 so as to face the conductive bars 90b and 90c. The other terminal insertion piece 97b is extended in a direction orthogonal to the connection piece 97 so as to be separated from the conductive bars 90b and 90c. Further, the distance from the conductive bars 90b and 90c to the terminal insertion piece 97b is larger than the distance to the terminal insertion piece 97a. Therefore, the terminal insertion pieces 97a and 97b are positioned in the front-rear direction. Furthermore, in a state where the conductive bars 90b and 90c are attached to the mounting piece 84, the terminal insertion pieces 97a and 97b provided on the other conductive bars 90b and 90c are positioned forward and backward, and both the terminal insertion pieces 97a and 97b It is positioned so that the position of the leading edge is aligned vertically and horizontally. With such an arrangement, the two terminal insertion pieces 97a and 97b arranged in the front and rear are connected to the other conductive bars 90b and 90c. Here, the widthwise end edges of the neutral conductive bar 90a attached to the support post 82 also coincide with the front end edges of the two terminal insertion pieces 97a, 97b. The connection pieces 97 provided on the different conductive bars 90 b and 90 c are insulated by the partition wall 81.

ところで、導電バー９０ｂ、９０ｃの長手方向の両端部には支持ポスト８２の角部に合致する形状の切欠部９８が形成されている。したがって、切欠部９８と支持ポスト８２とが係合することによって、導電バー９０ｂ、９０ｃはバー支持部材８０に対して左右方向に位置決めされることになる。また、導電バー９０ｂ、９０ｃの幅方向の一端部は分離壁８１ａに設けた引掛爪８１ｂと載置片８４との間で保持され、他端部は係止部８６に設けた保持爪と載置片８４との間で保持される。 By the way, a notch 98 having a shape matching the corner of the support post 82 is formed at both ends in the longitudinal direction of the conductive bars 90b and 90c. Therefore, the conductive bars 90 b and 90 c are positioned in the left-right direction with respect to the bar support member 80 by engaging the notch 98 and the support post 82. One end of the conductive bars 90b and 90c in the width direction is held between the hooking claw 81b provided on the separation wall 81a and the mounting piece 84, and the other end is mounted on the holding claw provided on the locking portion 86. It is held between the placing piece 84.

したがって、導電バー９０ｂ、９０ｃをバー支持部材８０に装着するには、引掛爪８１ｂと載置片８４との間に導電バー９０ｂ、９０ｃの一端部を挿入し、導電バー９０ｂ、９０ｃを載置片８４に押しつければ係止部８６の保持爪と載置片８４との間で導電バー９０ｂ、９０ｃの他端部が保持される。 Therefore, in order to attach the conductive bars 90b and 90c to the bar support member 80, one end of the conductive bars 90b and 90c is inserted between the hooking claw 81b and the mounting piece 84, and the conductive bars 90b and 90c are mounted. When pressed against the piece 84, the other ends of the conductive bars 90b and 90c are held between the holding claw of the locking portion 86 and the mounting piece 84.

上述のようにしてバー支持部材８０に取り付けられた導電バー９０ａ〜９０ｃは主幹ブレーカ３１の出力側端子と電気的に接続される。出力側端子と導電バー９０ａ〜９０ｃとは端子ねじ９３、９６を用いて外れないように接続される。 The conductive bars 90 a to 90 c attached to the bar support member 80 as described above are electrically connected to the output side terminals of the main breaker 31. The output-side terminals and the conductive bars 90a to 90c are connected using terminal screws 93 and 96 so as not to come off.

導電バー９０ａ〜９０ｃは分岐ブレーカ３２を接続するために設けられており、上下２段に８個ずつの分岐ブレーカ３２を配列している。分岐ブレーカ３２は、前面に設けられ端子ねじ（図示せず）を有した負荷側端子部３２ｂと、電源側（導電バー９０ａ〜９０ｃ側）に設けられ導電バー９０ａ〜９０ｃがそれぞれ挿入接続されるスリット状の端子部３７と、端子部３７と負荷側端子部３２ｂとの間に介在する接点（図示せず）とを備え、接点が開閉することにより端子部３７と負荷側端子部３２ｂとの間の導通・非導通を切り替えるものである。この接点は、上述のハンドル３２ａの操作によっても開閉する。なお負荷側端子部３２ｂは分岐ブレーカ３２における上下方向において導電バー９０ａ〜９０ｃと反対側の端部に階段状に並べて配置され、負荷側端子部３２ｂには負荷への交流電力供給用の電源線（図示せず）が接続される。端子部３７は前後方向の３箇所に設けられており、端子部３７のうち、前段の端子部３７には中性極の導電バー９０ａが挿入接続され、中央、後段の端子部３７、３７には電圧極の導電バー９０ｂ、９０ｃの挿入端子片９７ａ、９７ｂが挿入接続される。つまり、分岐ブレーカ３２にはいわゆるプラグイン式のものを用いる。ただし、各分岐ブレーカ３２はそれぞれ各導電バー９０ａ〜９０ｃのうちの２本にのみ電気的に接続され、他の１本はダミーとして扱われる。 The conductive bars 90a to 90c are provided to connect the branch breakers 32, and eight branch breakers 32 are arranged in two upper and lower stages. The branch breaker 32 is provided on the front surface and has a load side terminal portion 32b having a terminal screw (not shown), and a power supply side (conductive bars 90a to 90c side), and conductive bars 90a to 90c are inserted and connected respectively. A slit-like terminal portion 37 and a contact (not shown) interposed between the terminal portion 37 and the load side terminal portion 32b are provided, and the contact between the terminal portion 37 and the load side terminal portion 32b is opened and closed. It switches between conduction and non-conduction between. This contact is also opened and closed by the operation of the handle 32a described above. The load side terminal portion 32b is arranged in a stepped manner at the end of the branch breaker 32 opposite to the conductive bars 90a to 90c in the vertical direction, and the load side terminal portion 32b has a power line for supplying AC power to the load. (Not shown) is connected. The terminal portions 37 are provided at three locations in the front-rear direction. Among the terminal portions 37, a neutral electrode conductive bar 90 a is inserted and connected to the front-stage terminal portion 37, and the central and rear-stage terminal portions 37 and 37 are connected. Are inserted and connected to the insertion terminal pieces 97a and 97b of the conductive bars 90b and 90c of the voltage electrode. That is, a so-called plug-in type is used for the branch breaker 32. However, each branch breaker 32 is electrically connected to only two of the conductive bars 90a to 90c, respectively, and the other one is treated as a dummy.

またバー支持部材８０には上述したようにブレーカ取付片８７が設けられており、このブレーカ取付片８７に対応するバー支持部材８０の前面の部位にブレーカ支持片８９を突設している。また分岐ブレーカ３２の一方の側面にはブレーカ保持片８７に係合する保持溝３８が開口する。 Further, the breaker mounting piece 87 is provided on the bar support member 80 as described above, and the breaker support piece 89 projects from the front surface portion of the bar support member 80 corresponding to the breaker mounting piece 87. A holding groove 38 that engages with the breaker holding piece 87 is opened on one side surface of the branch breaker 32.

而して、分岐ブレーカ３２をバー支持部材８０に取り付けるに際しては、前段の端子部３７に導電バー９０ａを挿入し、中段、後段の端子部３７、３７には挿入端子片９７ａ、９７ｂを挿入せずに分岐ブレーカ３２を挿入端子片９７ａ、９７ｂの幅方向にずらしている状態から、分岐ブレーカ３２の保持溝３８にブレーカ保持片８７を挿入するとともに挿入端子片９７ａ、９７ｂを、中段、後段の端子部３７、３７に挿入するように分岐ブレーカ３２をスライドさせる。このとき、ブレーカ支持片８９が分岐ブレーカ３２の側面に当接して分岐ブレーカ３２の位置ずれが防止される。 Thus, when the branch breaker 32 is attached to the bar support member 80, the conductive bar 90a is inserted into the front terminal portion 37, and the insertion terminal pieces 97a and 97b are inserted into the middle and rear terminal portions 37 and 37. Without inserting the branch breaker 32 in the width direction of the insertion terminal pieces 97a and 97b, the breaker holding piece 87 is inserted into the holding groove 38 of the branch breaker 32, and the insertion terminal pieces 97a and 97b are inserted in the middle and rear stages. The branch breaker 32 is slid so as to be inserted into the terminal portions 37 and 37. At this time, the breaker support piece 89 abuts against the side surface of the branch breaker 32 and the position of the branch breaker 32 is prevented from being displaced.

上述のようにして、分岐ブレーカ３２がバー支持部材８０に固定された状態では、上下の分岐ブレーカ３２の間に分離壁８１ａの上下幅程度の隙間が形成される。この隙間を覆う形で分岐ブレーカ３２の前面には結束部材１００が取り付けられる。 As described above, in the state where the branch breaker 32 is fixed to the bar support member 80, a gap of about the vertical width of the separation wall 81a is formed between the upper and lower branch breakers 32. A bundling member 100 is attached to the front surface of the branch breaker 32 so as to cover the gap.

結束部材１００は４個の分岐ブレーカ３２の幅寸法に相当する長さを有し、上下の分岐ブレーカ３２の間に形成される隙間に挿入される挿入脚１０１を備える。また、結束部材１００は導電バー９０ａの挿通孔９１に圧入される圧入突起（図示せず）を備え、圧入突起が挿通孔９１に圧入されることによって結束部材１００が導電バー９０ａに固定される。結束部材１００には上下の各分岐ブレーカ３２の前面に重なる部位まで延長された結束片１０３が形成され、結束片１０３の先端部に設けた切欠溝１０４が分岐ブレーカ３２の前面に突設された結束用突部（図示せず）に係合することによって、上下の分岐ブレーカ３２が結束片１０３に連結されるようにしてある。この結束部材１００を設けていることにより、各分岐ブレーカ３２が結束部材１００を介して連結されることになる。 The bundling member 100 has a length corresponding to the width dimension of the four branch breakers 32, and includes insertion legs 101 that are inserted into gaps formed between the upper and lower branch breakers 32. The bundling member 100 includes a press-fitting protrusion (not shown) that is press-fitted into the insertion hole 91 of the conductive bar 90a, and the bundling member 100 is fixed to the conductive bar 90a by being press-fitted into the insertion hole 91. . The bundling member 103 is formed with a bundling piece 103 that extends to a portion that overlaps the front surface of each of the upper and lower branch breakers 32, and a notch groove 104 that is provided at the tip of the bundling piece 103 projects from the front surface of the branch breaker 32. The upper and lower branch breakers 32 are connected to the binding piece 103 by engaging with a binding protrusion (not shown). By providing the binding member 100, the branch breakers 32 are connected via the binding member 100.

以上説明したようにして架台４０、５０に取り付けられた主幹ブレーカ３１、分岐ブレーカ３２が交流系配設スペースＢに配設されることになる。ここで、主幹ブレーカ３１の電源側端子部３１ｂに交流電源の電力線が接続されることにより、導電バー９０ａ〜９０ｃは主幹ブレーカ３１を介して交流電源に接続され、各分岐ブレーカ３２は導電バー９０ａ〜９０ｃを介して交流電源に接続される。本実施形態では、主幹ブレーカ３１と導電バー９０ａ〜９０ｃと分岐ブレーカ３２と一次送りブレーカ３３とで交流回路部を構成する。 As described above, the main breaker 31 and the branch breaker 32 attached to the gantry 40, 50 are arranged in the AC system arrangement space B. Here, by connecting the power line of the AC power supply to the power supply side terminal portion 31b of the main breaker 31, the conductive bars 90a to 90c are connected to the AC power supply via the main breaker 31, and each branch breaker 32 is connected to the conductive bar 90a. It is connected to AC power supply through ~ 90c. In the present embodiment, the main circuit breaker 31, the conductive bars 90a to 90c, the branch breaker 32, and the primary feed breaker 33 constitute an AC circuit unit.

なお、一次送りブレーカ３３は分岐ブレーカ３２と同構成を有するものであり、負荷側端子部３３ｂが前面に設けられるともに、電源側（図２の上面側）にはスリット状の端子部３４が前後方向の３箇所に設けられているが、中央の端子部３４には導電バーを接続する導電接触片が設けられておらず、前後の端子部３４、３４のみが利用される。この一次送りブレーカ３３を箱本体１０の交流系配設スペースＢに取り付ける部材としては、補助取付板６０が用いられる。補助取付板６０は上下方向に長い矩形状に形成され上下両端部に段差部（図示せず）を介して２個の連結片６２が延設されている。各連結片６２には連結孔（図示せず）が形成され、連結孔を通して架台４０に設けた連結孔（図示せず）に連結ねじ６３を螺合させることにより、架台４０に補助取付板６０が連結される。 The primary feed breaker 33 has the same configuration as that of the branch breaker 32. The load side terminal portion 33b is provided on the front surface, and the slit-like terminal portion 34 is provided on the power source side (upper surface side in FIG. 2). Although it is provided at three locations in the direction, the central terminal portion 34 is not provided with a conductive contact piece for connecting a conductive bar, and only the front and rear terminal portions 34 and 34 are used. As a member for attaching the primary feed breaker 33 to the AC system installation space B of the box body 10, an auxiliary mounting plate 60 is used. The auxiliary mounting plate 60 is formed in a rectangular shape that is long in the vertical direction, and two connecting pieces 62 are extended at both upper and lower end portions via stepped portions (not shown). Each connecting piece 62 is formed with a connecting hole (not shown), and a connecting screw 63 is screwed into a connecting hole (not shown) provided in the mount 40 through the connecting hole, whereby the auxiliary mounting plate 60 is attached to the mount 40. Are concatenated.

補助取付板６０は一次送りブレーカ３３と左右方向の幅寸法がほぼ等しく形成され、補助取付板６０の下端部の前面には一次送りブレーカ３３の端部に設けた取付溝（図示せず）に挿入される取付係止片（図示せず）が切り起こして形成されている。また、補助取付板６０の長手方向の上半部には中継端子台７０を取り付けてある。この中継端子台７０は、一次送りブレーカ３３の端子部３４、３４に一端部が挿入される２本のバー端子（図示せず）の他端部を合成樹脂成形品の基台７１に挿入保持し、各バー端子の他端部に端子ねじ７３、７３を螺合させたものである。バー端子において端子ねじ７３、７３の螺合する部位は基台７１の上部側に階段状に並べて配置される。そして各バー端子には各端子ねじ７３、７３を用いて２本の接続線７４が接続され、各バー端子は接続線７４を介して主幹ブレーカ３１の電源側端子部３１ｂにおける一方の電圧極と中性極とにそれぞれ接続される。 The auxiliary mounting plate 60 is formed to have substantially the same width in the left-right direction as the primary feed breaker 33, and a mounting groove (not shown) provided at the end of the primary feed breaker 33 is formed on the front surface of the lower end portion of the auxiliary mounting plate 60. An attachment locking piece (not shown) to be inserted is cut and raised. A relay terminal block 70 is attached to the upper half of the auxiliary mounting plate 60 in the longitudinal direction. In this relay terminal block 70, the other end portions of two bar terminals (not shown) whose one end portions are inserted into the terminal portions 34, 34 of the primary feed breaker 33 are inserted and held in the base 71 of the synthetic resin molded product. The terminal screws 73 and 73 are screwed into the other end of each bar terminal. In the bar terminal, the screwed portions of the terminal screws 73 and 73 are arranged in a stepped manner on the upper side of the base 71. Each bar terminal is connected to two connection lines 74 using terminal screws 73, 73, and each bar terminal is connected to one voltage electrode in the power supply side terminal portion 31b of the main breaker 31 via the connection line 74. Connected to the neutral pole respectively.

上述したように本実施形態の分電盤は、交流直流変換器２２と直流機器２３および導電バー２９を含む直流回路部とを直流系配設スペースＡに、主幹ブレーカ３１と一次送りブレーカ３３と分岐ブレーカ３２と導電バー９０ａ〜９０ｃとからなる交流回路部を交流系配設スペースＢにそれぞれ配設するので、主幹ブレーカ３１および分岐ブレーカ３２と交流直流変換器２２および直流機器２３とを別々の筐体に収納する場合に比べて主幹ブレーカ３１と分岐ブレーカ３２と交流直流変換器２２と直流機器２３を全て配置するための占有スペースの省スペース化が図れる。さらに、分岐ブレーカ３２と交流直流変換器２２とは筐体１内において接続線２６で接続されるだけであるから、分岐ブレーカ３２と交流直流変換器２２との間の配線作業は容易となり、また、交流直流変換器２２と直流機器２３とは筐体１内において導電バー２９で接続されるだけであるから、交流直流変換器２２と直流機器２３との間の配線作業も容易となる。 As described above, the distribution board according to the present embodiment includes the AC / DC converter 22, the DC circuit unit including the DC device 23 and the conductive bar 29 in the DC system installation space A, the main breaker 31, the primary feed breaker 33, and the like. Since the AC circuit sections including the branch breaker 32 and the conductive bars 90a to 90c are respectively disposed in the AC system installation space B, the main breaker 31, the branch breaker 32, the AC / DC converter 22 and the DC device 23 are separately provided. As compared with the case where the main circuit breaker 31, the branch breaker 32, the AC / DC converter 22 and the DC device 23 are all arranged, the occupied space for arranging all of the main breaker 31, the branch breaker 32 and the DC device 23 can be reduced. Further, since the branch breaker 32 and the AC / DC converter 22 are only connected by the connection line 26 in the housing 1, the wiring work between the branch breaker 32 and the AC / DC converter 22 becomes easy. Since the AC / DC converter 22 and the DC device 23 are simply connected by the conductive bar 29 in the housing 1, wiring work between the AC / DC converter 22 and the DC device 23 is also facilitated.

ところで、各分岐ブレーカ３２の寸法は、いわゆる分電盤協約寸法（分電盤の内器の規格としてＪＩＳ規格に定められた寸法）に設定してある。一方、直流機器２３の機能にも拠るが直流機器２３は分岐ブレーカ３２と同寸法に収まらないことが多く、一般的に、直流機器２３の外形は分岐ブレーカ３２に比べて大きくなる。そのため、仮に直流側導電バーとしての導電バー２９が交流側導電バーとしての導電バー９０ａ〜９０ｃの長手方向（左右方向）の延長線上に配設されていると、導電バー２９の下方に偏って配設されている直流機器２３の分岐ブレーカ３２の下端面からの突出量が大きく、筐体１において分岐ブレーカ３２の下方に無駄なスペースが空き、上下方向の寸法が必要以上に大きい筐体１を用いることになる。 By the way, the dimension of each branch breaker 32 is set to a so-called distribution board agreement dimension (a dimension defined in the JIS standard as a standard of an internal device of the distribution board). On the other hand, although depending on the function of the DC device 23, the DC device 23 often does not fit in the same dimensions as the branch breaker 32, and in general, the outer shape of the DC device 23 is larger than that of the branch breaker 32. Therefore, if the conductive bar 29 as the DC side conductive bar is disposed on the extension line in the longitudinal direction (left-right direction) of the conductive bars 90a to 90c as the AC side conductive bar, the conductive bar 29 is biased downwardly from the conductive bar 29. The casing 1 has a large projecting amount from the lower end surface of the branch breaker 32 of the arranged DC device 23, and there is a useless space below the branch breaker 32 in the casing 1, and the vertical dimension is larger than necessary. Will be used.

これに対して、本実施形態では図１に示すように導電バー２９を筐体１内の上方側に偏った位置に配設し、分岐ブレーカ３２の下端面からの直流機器２３の突出量を小さく抑えている。したがって、上下方向における筐体１の寸法を小さく抑えることができ、筐体１の占有スペースを極力小さく抑えることができるという利点がある。具体的に説明すると、本実施形態で用いる直流機器２３は図１に示すように上下方向の寸法が分岐ブレーカ３２の２倍を超える器体２３ｄを有するものの、導電バー２９を上段の分岐ブレーカ３２の上端面と略同一高さになるように配置することで、器体２３ｄの下端面が分岐ブレー３２の下端面よりやや下方に位置する程度に分岐ブレーカ３２の下端面からの直流機器２３の突出量を抑えることができる。ここでは、上述したように複数台の直流機器２３が筐体１内に収納されるので、全て同一サイズに形成された器体２３ｄを有する直流機器２３を採用し、全ての直流機器２３を上下方向において同一高さに配置することにより、分岐ブレーカ３２の下端面からの全ての直流機器２３の突出量を一律に小さく抑えている。 On the other hand, in this embodiment, as shown in FIG. 1, the conductive bar 29 is disposed at a position biased upward in the housing 1, and the amount of protrusion of the DC device 23 from the lower end surface of the branch breaker 32 is set. Keep it small. Therefore, there is an advantage that the size of the casing 1 in the vertical direction can be reduced and the space occupied by the casing 1 can be suppressed as small as possible. Specifically, the DC device 23 used in the present embodiment has a container body 23d whose vertical dimension exceeds twice that of the branch breaker 32 as shown in FIG. 1, but the conductive bar 29 is connected to the upper branch breaker 32. Of the DC device 23 from the lower end surface of the branch breaker 32 so that the lower end surface of the vessel body 23d is located slightly below the lower end surface of the branch breaker 32. The amount of protrusion can be suppressed. Here, since a plurality of DC devices 23 are housed in the housing 1 as described above, the DC devices 23 having the body 23d formed in the same size are adopted, and all the DC devices 23 are moved up and down. By arranging them at the same height in the direction, the amount of projection of all the DC devices 23 from the lower end surface of the branch breaker 32 is kept small uniformly.

なお、筐体１は高所に取り付けられることが多いが、本実施形態では導電バー２９が導電バー９０ａ〜９０ｃよりも上寄りに配設されているので、分岐ブレーカ３２よりも外形が大きい直流機器２３を導電バー２９の下方の比較的低い位置に配置することができ、直流機器２３が高い位置に配置される場合に比べて直流機器２３の保守点検作業が容易になるという利点もある。 The housing 1 is often mounted at a high place, but in this embodiment, the conductive bar 29 is disposed above the conductive bars 90 a to 90 c, so that the direct current has a larger outer shape than the branch breaker 32. The device 23 can be arranged at a relatively low position below the conductive bar 29, and there is an advantage that the maintenance and inspection work of the DC device 23 is facilitated as compared with the case where the DC device 23 is arranged at a high position.

また、本実施形態で用いる交流直流変換器２２は上下方向の寸法が直流機器２３の器体２３ｄと同一である器体２２ｄを有し、交流直流変換器２２と直流機器２３とを上下方向において同一高さに配置することにより、分岐ブレーカ３２の下端面からの交流直流変換器２２の突出量についても直流機器２３と同様に小さく抑えている。つまり、交流直流変換器２２の下端面と直流機器２３の下端面とが上下方向に直交する同一平面内に位置するように、交流直流変換器２２および直流機器２３を取付台２００に対して取り付けることにより、上下方向における筐体１の寸法を小さく抑えている。 Further, the AC / DC converter 22 used in the present embodiment has a body 22d whose vertical dimension is the same as the body 23d of the DC device 23, and the AC / DC converter 22 and the DC device 23 are arranged in the vertical direction. By arranging them at the same height, the amount of protrusion of the AC / DC converter 22 from the lower end surface of the branch breaker 32 is also kept small as with the DC device 23. That is, the AC / DC converter 22 and the DC device 23 are attached to the mounting base 200 so that the lower end surface of the AC / DC converter 22 and the lower end surface of the DC device 23 are located in the same plane perpendicular to the vertical direction. Thereby, the dimension of the housing | casing 1 in the up-down direction is restrained small.

ところで、上記実施形態では直流系配設スペースＡにおいて、交流直流変換器２２を左側、直流機器２３を右側に配置しており、これにより、交流直流変換器２２が交流系配設スペースＢに配置された交流回路部（主幹ブレーカ３１と分岐ブレーカ３２と導電バー９０ａ〜９０ｃと一次送りブレーカ３３）と直流機器２３との間に位置する。そのため、直流機器２３が交流回路部から離れて配置されることとなり、交流回路部から放射されるノイズの直流機器２３への影響を低減することができる。 By the way, in the above embodiment, in the DC system installation space A, the AC / DC converter 22 is arranged on the left side, and the DC device 23 is arranged on the right side, whereby the AC / DC converter 22 is arranged in the AC system installation space B. The AC circuit unit (the main breaker 31, the branch breaker 32, the conductive bars 90a to 90c, the primary feed breaker 33) and the DC device 23 are located. Therefore, the DC device 23 is disposed away from the AC circuit unit, and the influence of noise radiated from the AC circuit unit on the DC device 23 can be reduced.

また、上記実施形態においては、取付台２００の左端部に、直流系配設スペースＡと交流径配設スペースＢとを仕切る隔壁７を配設している。隔壁７は少なくとも交流直流変換器２２よりも上下方向の寸法が大きく設定されており、後端縁（取付台２００側の端縁）から取付台２００に沿って交流直流変換器２２側に固定片７ａが延設されることにより、上下方向に直交する断面がＬ字状に形成されている。隔壁７の取付台２００への取り付けは、固定片７ａの上下２箇所に設けた固定孔７ｂに挿通させた取付ねじ（図示せず）を取付台２００に締め付けることにより行われる。この隔壁７を設けたことにより、交流回路部の配線を収納する空間と直流回路部の配線を収納する空間とが仕切られるので、交流回路部の配線と直流回路部の配線とが１つの空間に混在する場合に比べて、配線の見分けが容易になり配線作業を容易に行うことができる。 Further, in the above embodiment, the partition wall 7 that partitions the DC system installation space A and the AC diameter installation space B is provided at the left end portion of the mounting base 200. The partition wall 7 is set to have at least a vertical dimension larger than that of the AC / DC converter 22, and is fixed to the AC / DC converter 22 side from the rear end edge (end edge on the mounting base 200 side) along the mounting base 200. By extending 7a, the cross section orthogonal to the up-down direction is formed in an L shape. The partition wall 7 is attached to the mounting base 200 by tightening mounting screws (not shown) inserted through the fixing holes 7b provided at two locations above and below the fixing piece 7a. By providing the partition wall 7, the space for storing the wiring of the AC circuit unit and the space for storing the wiring of the DC circuit unit are partitioned, so that the wiring of the AC circuit unit and the wiring of the DC circuit unit are one space. Compared with the case where the two are mixed together, the wiring can be easily distinguished and the wiring work can be easily performed.

なお、上述の実施形態では筐体１が導電バー９０ａ〜９０ｃの長手方向を左右方向とする横向きに取り付けられる例を示したが、この例に限らず、本発明の分電盤は導電バー９０ａ〜９０ｃの長手方向を上下方向とする縦向きでも使用することができる。 In the above-described embodiment, the case 1 is illustrated in which the casing 1 is attached in a horizontal direction in which the longitudinal direction of the conductive bars 90a to 90c is the left-right direction. However, the present invention is not limited to this example, and the distribution board of the present invention is the conductive bar 90a. It can also be used in a vertical orientation in which the longitudinal direction of ˜90c is the vertical direction.

本発明の実施形態の構成を示す蓋体を外した状態の正面図である。It is a front view of the state which removed the lid which shows the composition of the embodiment of the present invention. 同上の構成を示す一部省略した分解斜視図である。It is the disassembled perspective view which abbreviate | omitted partially which shows the structure same as the above. 同上の要部を示す蓋体を外した状態の斜視図である。It is a perspective view of the state which removed the cover which shows the principal part same as the above. 同上の交流直流変換器の構成を示すブロック図である。It is a block diagram which shows the structure of the AC / DC converter same as the above. 同上の導電バーの構成を示す正面図である。It is a front view which shows the structure of a conductive bar same as the above. 同上の構成を示す正面図である。It is a front view which shows a structure same as the above. 同上の要部を示す分解斜視図である。It is a disassembled perspective view which shows the principal part same as the above. 同上の要部を示す分解斜視図である。It is a disassembled perspective view which shows the principal part same as the above.

Explanation of symbols

１筐体
７隔壁
２２交流直流変換器
２３直流機器
２９（直流側）導電バー
３１主幹ブレーカ
３２分岐ブレーカ
９０ａ〜９０ｃ（交流側）導電バー
Ａ直流系配設スペース
Ｂ交流系配設スペース
1 Housing 7 Bulkhead 22 AC / DC Converter 23 DC Equipment 29 (DC Side) Conductive Bar 31 Main Breaker 32 Branch Breaker 90a-90c (AC Side) Conductive Bar A DC System Installation Space B AC System Installation Space

Claims

An AC circuit unit connected to the AC power source, an AC / DC converter that converts the AC power input from the AC circuit unit into a DC power source and outputs the output, and a DC circuit unit connected to the output of the AC / DC converter A distribution board housed in one front rectangular casing, wherein the AC circuit section is extended along a main breaker connected to an AC power source and one side of the front of the casing. A plurality of AC-side conductive bars connected to each other along the longitudinal direction of the AC-side conductive bar on both sides in the width direction of the AC-side conductive bar in the plane along the front surface of the casing, A branch breaker connected to the conductive bar, and the DC circuit portion is extended in the same direction as the longitudinal direction of the AC side conductive bar on the side of the AC side conductive bar in the longitudinal direction. DC connected to the output of the instrument A conductive bar and a DC device connected to the DC side conductive bar. The DC device is connected to the DC side conductive bar at one end in the width direction of the AC side conductive bar, and the DC side conductive bar is connected to the AC side. A distribution board, wherein the distribution board is arranged at a position biased to one side of the branch breakers on both sides in the width direction of the conductive bar.

The casing is installed so that the width direction of the AC side conductive bar in the plane along the front surface is the vertical direction, and the DC side conductive bar is on the branch breaker side above the AC side conductive bar. The distribution board according to claim 1, wherein the distribution board is disposed at a biased position.

3. The distribution board according to claim 1, wherein the AC / DC converter is disposed between the AC circuit unit and the DC device.

A partition wall is provided between the AC circuit unit and the DC circuit unit in the housing to partition a space in which wiring of the AC circuit unit is stored and a space in which wiring of the DC circuit unit is stored. The distribution board according to any one of claims 1 to 3.