JP2011125149A - Bus bar device of circuit breaker - Google Patents

Bus bar device of circuit breaker Download PDF

Info

Publication number
JP2011125149A
JP2011125149A JP2009281135A JP2009281135A JP2011125149A JP 2011125149 A JP2011125149 A JP 2011125149A JP 2009281135 A JP2009281135 A JP 2009281135A JP 2009281135 A JP2009281135 A JP 2009281135A JP 2011125149 A JP2011125149 A JP 2011125149A
Authority
JP
Japan
Prior art keywords
bus bar
circuit breaker
conductor
unit
terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP2009281135A
Other languages
Japanese (ja)
Inventor
Isamu Nagahiro
永廣  勇
Koji Asakawa
浅川  浩司
Takeshi Emura
武史 江村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuji Electric FA Components and Systems Co Ltd
Original Assignee
Fuji Electric FA Components and Systems Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuji Electric FA Components and Systems Co Ltd filed Critical Fuji Electric FA Components and Systems Co Ltd
Priority to JP2009281135A priority Critical patent/JP2011125149A/en
Publication of JP2011125149A publication Critical patent/JP2011125149A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/20Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
    • H02B1/205Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards for connecting electrical apparatus mounted side by side on a rail

Landscapes

  • Distribution Board (AREA)
  • Patch Boards (AREA)
  • Breakers (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bus bar device of a circuit breaker which has an improved structure so as to flexibly cope with specification changes including replacement and extension of the circuit breaker by a simple wiring work in a plurality of circuit breakers arranged in parallel in a board. <P>SOLUTION: In the bus bar device of the circuit breaker, wiring the power supply side terminals 1b of each circuit breaker is performed, relative to a plurality of circuit breakers 1 arranged laterally and set in the board. The bus bar device is divided into a bus bar unit 6 corresponding to the circuit breaker 1 on 1:1 basis, and each bus bar unit 6 has a bus bar conductor 8 of each phase in a unit case 7, and a connection terminal 8a, which is branched off from the bus bar conductor 8 to correspond to the terminal array of the circuit breaker 1, is drawn out to the unit case side. While the connection terminal 8a of the bus bar unit 6 is connected by insertion into the power supply side terminals 1b of the circuit breaker 1, the mutual adjacent bus bar units 6 are connected by a plug-in method to make the electric connection of the bus bar conductors 8 of respective phases. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

この発明は、マニュアル・モータ・スタータ(モータ保護専用の配線用遮断器)などを対象とした回路遮断器に適用するブスバー装置に係わる。   The present invention relates to a bus bar device applied to a circuit breaker for a manual motor starter (a circuit breaker dedicated to motor protection).

配電盤,分電盤などの盤内に敷設した機器取付用レールに複数台の頭記回路遮断器(マニュアル・モータ・スタータ)を据付けた配電設備において、各回路遮断器の電源側端子を電源側の主幹機器(例えば配線用遮断器)に接続して給電するには、あらかじめ各回路遮断器の電源側端子の相互間に電線を渡り配線した上で、ここに電源側の電線を接続して各回路遮断器に一括して給電する配線方式が一般に採用されている。   In power distribution equipment with multiple head circuit breakers (manual, motors, starters) installed on equipment mounting rails laid in panels such as switchboards and distribution boards, the power supply side terminals of each circuit breaker are connected to the power supply side. In order to connect and supply power to the main equipment (for example, circuit breaker), connect the wires on the power supply side after connecting the wires between the power supply side terminals of each circuit breaker in advance. In general, a wiring system is used in which power is supplied to each circuit breaker in a lump.

また、前記渡り配線作業の利便性を図るために、メーカーでは回路遮断器のブスバーシステムとして、複数台の回路遮断器の間で電源側端子を相互接続する渡り配線専用のブスバー装置,および電源側の電線を接続する電源入力端子ブロックなどの付属装置がオプション品として用意されている(例えば、非特許文献1,特許文献1参照)。   In addition, in order to make the transition wiring work more convenient, the manufacturer uses a bus bar system for the circuit breaker as a bus bar system for the circuit breaker. Attached devices such as a power input terminal block for connecting the wires are prepared as optional items (see, for example, Non-Patent Document 1 and Patent Document 1).

次に、回路遮断器に適用した従来のブスバー装置を図8,図9に示す。各図において、1は回路遮断器(例えば、頭記のマニュアル・モータ・スタータ)、1aは回路遮断器1のロッカー式操作ハンドル、1bは電源側端子(ネジ端子)、1cは負荷側端子、1dは端子カバーである。また、2は左右に並ぶ複数台の回路遮断器1(図示例では3台)について、その電源側端子1bの相互間を渡り配線する専用のブスバー(オプション品)、3は左端に並ぶ回路遮断器1の電源側端子1bに前記ブスバー2と一緒に接続した電源入力端子ブロック(オプション品)であり、そのカバー付きケース内には回路遮断器1の電源側端子1bに接続する端子板が収納されている。4は電源入力端子ブロック3と上位の電源機器との間に配線した電源側の電線、5は盤内に敷設した機器取付用レールである。   Next, a conventional bus bar device applied to a circuit breaker is shown in FIGS. In each figure, 1 is a circuit breaker (for example, the manual motor / starter mentioned above), 1a is a rocker type operation handle of the circuit breaker 1, 1b is a power supply side terminal (screw terminal), 1c is a load side terminal, 1d is a terminal cover. Reference numeral 2 denotes a dedicated bus bar (optional product) for wiring between the power supply side terminals 1b of a plurality of circuit breakers 1 (three in the illustrated example) arranged side by side, and 3 is a circuit breaker arranged at the left end. A power input terminal block (optional product) connected to the power supply side terminal 1b of the circuit breaker 1 together with the bus bar 2, and a terminal plate connected to the power supply side terminal 1b of the circuit breaker 1 is housed in the case with the cover. Has been. Reference numeral 4 denotes a power supply side electric wire wired between the power input terminal block 3 and the upper power supply equipment, and 5 denotes equipment mounting rails laid in the panel.

ここで、前記した渡り配線用のブスバー2は、3相電源回路のR,S,T各相に対応する3本のブスバー導体(平角導体)をラミネートしてその相互間および外周面に絶縁を施した上で、回路遮断器1の電源側端子1bの配列ピッチに合わせて各相のバー導体から側方に接続端子2a(ピン端子)を横一列に並べて引き出した一体構造になる。また、電源入力端子ブロック3についても、図示してないがブスバー2の接続端子2aと同様なR,S,Tの各相に対応する接続端子を備えている。なお、前記接続端子2aについては、フォーク端子を採用したものもある。   Here, the above-described bus bar 2 for crossover wiring is formed by laminating three bus bar conductors (flat rectangular conductors) corresponding to the R, S, and T phases of the three-phase power supply circuit to insulate each other and the outer peripheral surface. In addition, the connection terminals 2a (pin terminals) are arranged side by side in a horizontal line from the bar conductors of the respective phases in accordance with the arrangement pitch of the power supply side terminals 1b of the circuit breaker 1. The power input terminal block 3 also includes connection terminals corresponding to R, S, and T phases similar to the connection terminal 2a of the bus bar 2, although not shown. The connection terminal 2a may employ a fork terminal.

そして、盤内に設置した複数台の回路遮断器1(図示例では3台)に対して、その電源側端子1bを電源側の電線4に分岐接続するには、回路遮断器1の電源側端子1b(ネジ端子)を緩めた上で、前記ブスバー2の接続端子2aを図8の矢印方向から回路遮断器の電源側端子1bに差込み、さらに左端に並ぶ回路遮断器1の電源側端子1bにはブスバー2に重ねて配置した電源入力端子ブロック3の接続端子を一緒に差込んだ状態で各回路遮断器1の電源側端子(端子ネジ)1bを締め付けてブスバー2の接続端子2aを接続する。これにより、各回路遮断器1の相互間がブスバー2を介して渡り配線される。   In order to branch-connect the power supply side terminal 1b to the power supply side electric wire 4 with respect to a plurality of circuit breakers 1 (three in the illustrated example) installed in the panel, the power supply side of the circuit breaker 1 After loosening the terminal 1b (screw terminal), the connection terminal 2a of the bus bar 2 is inserted into the power supply side terminal 1b of the circuit breaker from the direction of the arrow in FIG. 8, and further, the power supply side terminal 1b of the circuit breaker 1 arranged at the left end. In the state where the connection terminals of the power input terminal block 3 arranged so as to overlap the bus bar 2 are inserted together, the power terminal (terminal screw) 1b of each circuit breaker 1 is tightened to connect the connection terminal 2a of the bus bar 2 To do. As a result, the circuit breakers 1 are connected to each other via the bus bar 2.

特開2007−128795号公報(図2)Japanese Patent Laying-Open No. 2007-128795 (FIG. 2)

製品カタログ“マニュアルモータスタータ コンビネーションスタータ”、「ブスバーシステム」(第42−45頁)、[online]、富士電機機器制御株式会社、[平成21年12月5日検索]、インターネット<http://www.fujielectric.co.jp/fcs/jpn/edc/catalog2/EH530d/EH530d_all.pdf>Product Catalog “Manual Motor Starter Combination Starter”, “Bus Bar System” (pages 42-45), [online], Fuji Electric Device Control Co., Ltd., [December 5, 2009 Search], Internet <http: // www.fujielectric.co.jp/fcs/jpn/edc/catalog2/EH530d/EH530d_all.pdf>

ところで、図8で述べた従来構造のブスバー装置は機能,取扱い面で次記のような問題点がある。すなわち、非特許文献1に開示されているように、ブスバーは回路遮断器の台数に対応した長さの一体ラミネート構造であり、回路遮断器1の使用台数(例えば、2台用〜5台用)によってその仕様長さが異なる。   By the way, the bus bar device of the conventional structure described in FIG. 8 has the following problems in terms of function and handling. That is, as disclosed in Non-Patent Document 1, the bus bar has an integral laminate structure having a length corresponding to the number of circuit breakers, and the number of circuit breakers 1 used (for example, for 2 to 5 units). ) The length of the specification varies.

そのために、複数台の回路遮断器1を盤内に並置してその相互間にブスバー2を接続した使用状態で、回路遮断器1に接続した負荷側回路の仕様変更などにより回路遮断器を異なる定格,特性の回路遮断器に付け替えたり、あるいは一時的に取り外したりする場合には、そのメンテナンス作業として各回路遮断器1の電源側端子ネジ1bを全て緩めてブスバー2を一旦取り外した上で回路遮断器1の付替えを行い、その後に改めて各回路遮断器1にブスバー2を接続し直す必要がある。また、一部の回路遮断器を取り外してブスバー2を使用する場合には、ブスバー2から引き出した各接続端子2aのうち、回路遮断器1に接続しない接続端子2aは充電部が露呈したままとなるため、感電防止対策としてその接続端子を絶縁カバーで覆うなどの措置が必要となる。さらに、既設の回路遮断器の横に並べて盤内に回路遮断器1を増設する場合には、その台数に対応した長さのブスバー(オプション品)に差し替えたり、別なブスバーを追加したりするなど、従来構造のブスバーではその配線作業に時間と手間がかかる。   For this purpose, the circuit breaker differs depending on the specifications of the load side circuit connected to the circuit breaker 1 in a state where a plurality of circuit breakers 1 are juxtaposed in the panel and the bus bar 2 is connected between them. When replacing or temporarily removing the circuit breaker of rated or characteristic, as a maintenance work, loosen all the power supply side terminal screws 1b of each circuit breaker 1 and remove the bus bar 2 once. It is necessary to replace the circuit breaker 1 and then connect the bus bar 2 to each circuit breaker 1 again. Further, when the bus bar 2 is used with some circuit breakers removed, the connection part 2a not connected to the circuit breaker 1 among the connection terminals 2a drawn out from the bus bar 2 is left exposed to the charging unit. Therefore, measures such as covering the connection terminal with an insulating cover are necessary as a measure for preventing electric shock. Furthermore, when installing the circuit breaker 1 in the panel side by side with the existing circuit breaker, replace it with a bus bar (option) of a length corresponding to the number of units or add another bus bar. For example, a bus bar having a conventional structure requires time and labor for wiring.

この発明は上記の点に鑑みなされたものであり、その目的は前記課題を解決し、盤内に並置配備した複数台の回路遮断器について、その回路遮断器の一部を付替え,増設するなどの仕様変更に対しても、簡単な配線作業で柔軟に対応できるように構造を改良した回路遮断器のブスバー装置を提供することにある。   The present invention has been made in view of the above points. The object of the present invention is to solve the above-mentioned problems and to replace and add a part of the circuit breakers for a plurality of circuit breakers arranged in parallel in the panel. An object of the present invention is to provide a busbar device for a circuit breaker having an improved structure so that it can flexibly cope with changes in specifications such as simple wiring work.

上記目的を達成するために、この発明によれば、左右に並べて盤内に設置した複数台の回路遮断器に対し、各回路遮断器の電源側端子の相互間に渡り配線する回路遮断器のブスバー装置において、
当該ブスバー装置を回路遮断器と一対一で対応するブスバーユニットに分けた上で、各ブスバーユニットは、そのユニットケースに各相のブスバー導体を内装し、かつ回路遮断器の端子配列に合わせて前記ブスバー導体から分岐した接続端子をユニットケースの側方に引き出した構成となし、このブスバーユニットの接続端子を回路遮断器の電源側端子に差込み接続した状態で、隣接するブスバーユニットの相互間をプラグイン式に連結して各相のブスバー導体同士を電気的に接続するものとし(請求項1)、そのブスバーユニットは具体的に次記のような態様で構成することができる。
(1)前記ブスバー導体の端部にバネ性を有する接続アームを一体形成し、該接続アームを隣接するユニットケースのブスバー導体に重ね合わせてプラグイン式に接続する(請求項2)。
(2)前項(1)において、接続アームがブスバー導体の端部から複数本に分けて分岐延在した撓み性を有するフォーク状のアームになり、かつ該アームの先端部には隣接するユニットケースのブスバー導体に重なり合う凸状接触部を形成する(請求項3)。
(3)前記ブスバーユニットについて、そのユニットケースの両端に着脱可能なサイドキャップ,サイドカバーを備える(請求項4)。
In order to achieve the above object, according to the present invention, for a plurality of circuit breakers installed in a panel side by side, a circuit breaker for wiring between power supply side terminals of each circuit breaker is provided. In the busbar device,
After dividing the bus bar device into bus bar units corresponding one-to-one with the circuit breaker, each bus bar unit includes a bus bar conductor of each phase in its unit case, and matches the terminal arrangement of the circuit breaker. The connection terminal branched from the bus bar conductor is pulled out to the side of the unit case, and the connection terminal of this bus bar unit is plugged into the power supply side terminal of the circuit breaker and plugged between adjacent bus bar units. The bus bar conductors of the respective phases are electrically connected to each other by being connected in an in-type (Claim 1), and the bus bar unit can be specifically configured in the following manner.
(1) A connecting arm having a spring property is integrally formed at an end portion of the bus bar conductor, and the connecting arm is overlapped with a bus bar conductor of an adjacent unit case and connected in a plug-in manner.
(2) The unit case according to (1), wherein the connecting arm is a fork-shaped arm having a flexibility that is branched and extended from the end portion of the bus bar conductor, and is adjacent to the tip portion of the arm. A convex contact portion that overlaps the bus bar conductor is formed.
(3) The bus bar unit includes detachable side caps and side covers at both ends of the unit case.

上記のようにブスバー装置を回路遮断器と一対一で対応するブスバーユニットに分けて構成することにより、盤内に並置配備した複数台の回路遮断器について、その回路遮断器を付替え,増設する仕様変更にも柔軟に対応して、回路遮断器の相互間に渡り配線するブスバー装置を簡単,かつ短時間の作業で構築することができ、これによりユーザーへのサービス性改善が図れる。   As described above, the bus bar device is divided into bus bar units that correspond one-to-one with the circuit breakers, so that the circuit breakers can be replaced and expanded for multiple circuit breakers arranged in parallel in the panel. The busbar device for wiring between circuit breakers can be constructed easily and in a short time, and the serviceability for users can be improved.

この発明の実施例によるブスバー装置の構成図であって、(a)はブスバー装置を回路遮断器に組み付けた使用状態の正面図、(b),(c)はそれぞれ(a)におけるブスバーユニットの外観斜視図,およびその内部に組み込んだブスバー導体の斜視図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram of the bus bar apparatus by the Example of this invention, (a) is a front view of the use condition which assembled | attached the bus bar apparatus to the circuit breaker, (b), (c) is each of the bus bar unit in (a). It is an external appearance perspective view, and a perspective view of the bus bar conductor built in the inside. 図1(a)に対応する補足説明図であって、(a),(b)はそれぞれブスバー装置を回路遮断器に接続した状態の平面図、および側面図である。It is a supplementary explanatory view corresponding to Drawing 1 (a), and (a) and (b) are the top views and the side views in the state where the bus bar device was connected to the circuit breaker, respectively. 図1(b)に対応するブスバーユニットの組立構造を表す図であって、(a),(b)はそれぞれ上面側,および底面側から見た分解斜視図である。It is a figure showing the assembly structure of the bus bar unit corresponding to FIG.1 (b), Comprising: (a), (b) is the exploded perspective view seen from the upper surface side and the bottom surface, respectively. 図1における2組のブスバーユニットをプラグイン式に連結した状態を表す図であって、(a)正面図、(b)は底面図、(c),(d)はそれぞれ上面側,底面側から見た斜視図である。It is a figure showing the state which connected two sets of bus-bar units in FIG. 1 in the plug-in type, Comprising: (a) Front view, (b) is a bottom view, (c), (d) is an upper surface side and a bottom surface side, respectively. It is the perspective view seen from. 図4に対応する補足説明図であって、(a),(b)はそれぞれユニットケースを取り除いたブスバー導体の接続状態を表す正面図,および底面図、(c),(d)はそれぞれ上面側,底面側から見た斜視図である。FIG. 5 is a supplementary explanatory diagram corresponding to FIG. 4, wherein (a) and (b) are respectively a front view and a bottom view showing a connection state of the bus bar conductor with the unit case removed, and (c) and (d) are respectively a top view. It is the perspective view seen from the side and the bottom face side. この発明によるブスバー装置の異なる実施例の構成図であって、(a),(b),(c)はそれぞれブスバー装置を回路遮断器に接続した状態の正面図,平面図,および側面図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram of the different Example of the bus bar apparatus by this invention, Comprising: (a), (b), (c) is the front view of the state which connected the bus bar apparatus to the circuit breaker, a top view, and a side view, respectively. is there. 図6におけるブスバーユニットに組み込んだブスバー導体の配置図であって、(a),(b)はそれぞれ正面図、および平面図である。FIG. 7 is a layout view of bus bar conductors incorporated in the bus bar unit in FIG. 6, wherein (a) and (b) are a front view and a plan view, respectively. 従来のブスバーを回路遮断器に接続する手順を表す正面図である。It is a front view showing the procedure which connects the conventional bus bar to a circuit breaker. 図8のブスバーを電源入力端子ブロックとともに回路遮断器に接続した使用状態を表す図であって、(a),(b)はそれぞれ正面図,および側面図である。It is a figure showing the use condition which connected the bus bar of FIG. 8 to the circuit breaker with the power input terminal block, Comprising: (a), (b) is a front view and a side view, respectively.

以下、この発明の実施の形態を図1〜図7に示す実施例に基づいて説明する。なお、実施例の図中で図8,図9に対応する部材には同じ符号を付してその説明は省略する。   DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on examples shown in FIGS. In addition, in the figure of an Example, the same code | symbol is attached | subjected to the member corresponding to FIG. 8, FIG. 9, and the description is abbreviate | omitted.

まず、図1〜図5によりこの発明の第1実施例によるブスバー装置の構造を説明する。
この実施例においては、左右に並べて盤内に設置した回路遮断器1(図1,図2参照)に対するオプション品としてのブスバー装置が、各回路遮断器1と一対一に対応するブスバーユニット6に分けて構成されている。ここで、各ブスバーユニット6は、そのユニットケース7にR,S,T各相に対応するブスバー導体8を組み付けた構成になり,各相のブスバー導体8には回路遮断器1の端子配列に合わせてケース7の側方に引き出した接続端子8aが分岐形成されており、次に詳細な組立構造を図3に示す。
First, the structure of the bus bar device according to the first embodiment of the present invention will be described with reference to FIGS.
In this embodiment, the bus bar device as an optional product for the circuit breaker 1 (see FIG. 1 and FIG. 2) arranged side by side on the board is provided in the bus bar unit 6 corresponding to each circuit breaker 1 on a one-to-one basis. It is configured separately. Here, each bus bar unit 6 has a configuration in which a bus bar conductor 8 corresponding to each of the R, S, and T phases is assembled to the unit case 7, and the bus bar conductor 8 of each phase has a terminal arrangement of the circuit breaker 1. In addition, a connection terminal 8a drawn out to the side of the case 7 is branched, and the detailed assembly structure is shown in FIG.

すなわち、ブスバーユニット6のユニットケース7(樹脂成形品)は、両端を開放した箱型のケース本体7a,サイドキャップ7b,サイドカバー7c,底蓋7dとの組立体になり、ケース本体7aの内部にはR,S,T各相のブスバー導体8に対応する三つの室が仕切隔壁を隔てて画成されている。   That is, the unit case 7 (resin-molded product) of the bus bar unit 6 is an assembly of a box-shaped case body 7a, side caps 7b, side covers 7c, and bottom lid 7d with both ends open. The three chambers corresponding to the bus bar conductors 8 of the R, S, and T phases are defined with partition walls.

一方、銅板の打ち抜き加工品になるブスバー導体8には、前記した接続端子8aのほか、導体8の一端側には櫛歯状の切込みを入れて撓み性とバネ性を持たせたフォーク状の接続アーム8bが形成されており、その接続アーム8bは長手方向に沿いZ字形に曲げ加工してその先端部に段差を形成した上で、この先端部の内側面には凸状の接触突起8cを形成している。そして、この各相のブスバー導体8を前記ユニットケース7の本体ケース7aに収設した上で、本体ケース7aにサイドキャップ7b,サイドカバー7c,底蓋7dを嵌合式に組み付けて回路遮断器の一台分に対応するブスバーユニット6を構成している。なお、この実施例では、サイドキャップ7bは、ブスバー導体8の接続アーム8bに嵌合させるようにしている。   On the other hand, in the bus bar conductor 8 which is a punched product of a copper plate, in addition to the connection terminal 8a described above, a fork-like shape in which a comb-like cut is made on one end side of the conductor 8 to provide flexibility and springiness. A connecting arm 8b is formed. The connecting arm 8b is bent into a Z shape along the longitudinal direction to form a step at the tip, and a convex contact protrusion 8c is formed on the inner surface of the tip. Is forming. Then, after the bus bar conductors 8 of the respective phases are accommodated in the main body case 7a of the unit case 7, a side cap 7b, a side cover 7c, and a bottom cover 7d are assembled to the main body case 7a in a fitting manner to form a circuit breaker. A bus bar unit 6 corresponding to one unit is configured. In this embodiment, the side cap 7 b is fitted to the connection arm 8 b of the bus bar conductor 8.

前記構成になるブスバーユニット6を回路遮断器1に組み付けて使用するには、ユニットの連結状態で不要となるサイドキャップ7b,ないしサイドカバー7cをあらかじめ取り外した上で、ブスバーユニット6を回路遮断器1の長手方向に対して並行方向、すなわちユニットケース7から側方に引き出した接続端子8aを図1(a)で示すように回路遮断器1の電源側端子1bに上方から差込み接続し、この状態で同時に隣接するブスバーユニット6との間をプラグイン式に連結して各相のブスバー導体8を電気的に直列接続する。なお、図中の左端に並ぶ回路遮断器1には図9と同様に電源入力端子ブロック3を組み付けて電源側の電線4と接続している。   In order to use the bus bar unit 6 configured as described above in the circuit breaker 1, the side cap 7b or the side cover 7c which is not necessary in the connected state of the unit is removed in advance, and the bus bar unit 6 is then connected to the circuit breaker. 1 is connected to the power supply side terminal 1b of the circuit breaker 1 from above as shown in FIG. 1 (a). In the state, the adjacent bus bar units 6 are connected in a plug-in manner, and the bus bar conductors 8 of the respective phases are electrically connected in series. The circuit breakers 1 arranged at the left end in the figure are assembled with the power input terminal block 3 and connected to the power supply side electric wire 4 as in FIG.

次に、隣り合う2組のブスバーユニット6をプラグイン式に連結した状態を図4,図5に示す。この図から明らかなように、前記した接続アーム8bに形成した接続突起8cが接続相手のブスバー導体8の表面に重なり合い、接続アーム8bのバネ弾性により加圧接触される。これにより、ブスバーユニット6の相互間では各相のブスバー導体8の間が電気的に渡り接続されることになる。また、ブスバー導体8の接続アーム8bに対応して接続相手のユニットケース7の端部にはアーム差込用の切欠溝を形成した上で、この切欠溝をブスバーユニット6の連結状態で嵌合により塞ぐように栓蓋7eを備えており、この栓蓋7eでブスバー導体8の充電部がケース外方に露呈するのを防いで感電事故の防止を図るようにしている。   Next, FIG. 4 and FIG. 5 show a state in which two adjacent bus bar units 6 are connected in a plug-in manner. As is apparent from this figure, the connection protrusion 8c formed on the connection arm 8b overlaps the surface of the bus bar conductor 8 of the connection partner and is brought into pressure contact by the spring elasticity of the connection arm 8b. Thereby, between the bus bar units 6, the bus bar conductors 8 of the respective phases are electrically connected to each other. Further, a notch groove for inserting an arm is formed at the end of the connecting unit case 7 corresponding to the connecting arm 8 b of the bus bar conductor 8, and this notch groove is fitted in a connected state of the bus bar unit 6. A plug lid 7e is provided so as to prevent the electric shock accident by preventing the charged portion of the bus bar conductor 8 from being exposed to the outside of the case.

なお、図1(a)では、ブスバーユニット6を個別に回路遮断器1の電源側端子1bへ上方側から差込み式に装着し、この装着過程で同時にブスバーユニット相互間をプラグイン式に連結するようにしているが、これとは別な方法として、回路遮断器1の台数に対応する個数のブスバーユニット6をあらかじめプラグイン式に連結しておき、このユニット集合体を左右に並べて盤内に設置した回路遮断器1に一括して差込み接続するようにしてもよい。また、ブスバー導体8からケース側方に引出した接続端子8aについて、図示実施例では先端が二股形状のフォーク端子を採用しているが、図8と同様なピン端子で構成してもよい。さらに、ブスバー導体8の端部に形成した接続アーム8bについても、接続相手のブスバー導体8を両側から挟み込んで接触させるような異形のフォーク形状で構成することもできる。   In FIG. 1A, the bus bar units 6 are individually inserted into the power supply side terminal 1b of the circuit breaker 1 from the upper side, and the bus bar units are simultaneously connected in a plug-in manner in this mounting process. However, as an alternative method, a number of bus bar units 6 corresponding to the number of circuit breakers 1 are connected in advance in a plug-in manner, and the unit aggregates are arranged side by side in the panel. The circuit breaker 1 installed may be plugged in and connected together. Further, for the connection terminal 8a drawn from the bus bar conductor 8 to the side of the case, a fork terminal with a bifurcated tip is used in the illustrated embodiment, but it may be constituted by a pin terminal similar to that shown in FIG. Further, the connection arm 8b formed at the end of the bus bar conductor 8 can also be formed in a deformed fork shape such that the bus bar conductor 8 to be connected is sandwiched and brought into contact with both sides.

上記構成によれば、盤内に並置配備した複数台の回路遮断器1にブスバーユニット6を接続して回路遮断器の相互間に渡り配線した使用状態で、回路遮断器1を付替え,取り外し、増設する配電回路の仕様変更にも、ブスバーユニット6を個別に差し替えるだけの簡単な作業で柔軟に対応できる。   According to the above configuration, the circuit breaker 1 is replaced and removed in a use state in which the bus bar unit 6 is connected to the plurality of circuit breakers 1 arranged in parallel in the panel and wired between the circuit breakers. Therefore, it is possible to flexibly cope with a change in the specifications of the power distribution circuit to be added by a simple operation of replacing the bus bar unit 6 individually.

次に、この発明による応用実施例を図6,および図7に示す。この第2実施例ではユニットケース7に組み込んだブスバー導体8の向きが先記実施例1とは90度異なり、R,S,T各相に対応するブスバー導体8が前後方向に並んでユニットケース7の内部に組み込まれ、かつ各相のブスバー導体8から分岐した接続端子8aをブスバーの導体面と直角方向に屈曲させてユニットケース7の側方に引き出している。   Next, application examples according to the present invention are shown in FIGS. In this second embodiment, the direction of the bus bar conductor 8 incorporated in the unit case 7 is 90 degrees different from that of the first embodiment, and the bus bar conductors 8 corresponding to the R, S, T phases are arranged in the front-rear direction. 7 is connected to the bus bar conductor 8 of each phase and is bent in a direction perpendicular to the conductor surface of the bus bar and pulled out to the side of the unit case 7.

この構造によれば、ブスバーユニット6を盤内に設置した回路遮断器1の電源側端子1bに接続する際には、電源側端子1bの端子ネジをあらかじめ外した上でブスバーユニット6を回路遮断器1の長手方向に対して垂直方向、すなわち回路遮断器1の前方,あるいは側方から装着することにより、接続アーム8bを介してブスバー導体8が隣接ユニットのブスバー導体8とプラグイン式に接続される。そして、この装着状態で電源側端子1bに端子ネジを螺合して締め直すことで接続端子8aとの間が接続される。   According to this structure, when the bus bar unit 6 is connected to the power supply side terminal 1b of the circuit breaker 1 installed in the panel, the bus bar unit 6 is disconnected after the terminal screw of the power supply side terminal 1b is removed in advance. The bus bar conductor 8 is connected to the bus bar conductor 8 of the adjacent unit in a plug-in manner via the connection arm 8b by mounting in a direction perpendicular to the longitudinal direction of the device 1, that is, from the front or side of the circuit breaker 1. Is done. Then, in this mounted state, the terminal is screwed into the power supply side terminal 1b and tightened to reconnect the connection terminal 8a.

したがって、盤内に設置した回路遮断器1の上方側に殆ど遊び空間が無い場合でも、ブスバーユニット6の着脱操作を盤の前方側から支障なく行うことができる。なお、各ブスバーユニット6を相互連結した状態では、ケース7の連結端部に図4に示した栓蓋7eと同様な栓蓋を被着して接続アーム8bが外方に露呈するのを防ぐようにしている。   Therefore, even when there is almost no play space above the circuit breaker 1 installed in the panel, the bus bar unit 6 can be attached and detached from the front side of the panel without any trouble. In a state where the bus bar units 6 are connected to each other, a stopper lid similar to the stopper lid 7e shown in FIG. 4 is attached to the connecting end portion of the case 7 to prevent the connection arm 8b from being exposed to the outside. I am doing so.

1:回路遮断器
1b:電源側端子
3:電源入力端子ブロック
4:電源側の電線
5:回路遮断器の取付用レール
6:ブスバーユニット
7:ユニットケース
7a:ケース本体
7b:サイドキャップ
7c:サイドカバー
8:ブスバー導体
8a:接続端子
8b:接続アーム
8c:接触突起
1: Circuit breaker 1b: Power supply side terminal 3: Power supply input terminal block 4: Power supply side wire 5: Rail for mounting circuit breaker 6: Busbar unit 7: Unit case 7a: Case body 7b: Side cap 7c: Side Cover 8: Busbar conductor 8a: Connection terminal 8b: Connection arm 8c: Contact protrusion

Claims (4)

左右に並べて盤内に設置した複数台の回路遮断器に対し、各回路遮断器の電源側端子の相互間に渡り配線する回路遮断器のブスバー装置において、
当該ブスバー装置を回路遮断器と一対一で対応するブスバーユニットに分けた上で、各ブスバーユニットは、そのユニットケースに各相のブスバー導体を内装し、かつ回路遮断器の端子配列に合わせて前記ブスバー導体から分岐した接続端子をユニットケースの側方に引き出した構成となし、このブスバーユニットの接続端子を回路遮断器の電源側端子に差込み接続した状態で、隣接するブスバーユニットの相互間をプラグイン式に連結して各相のブスバー導体同士を電気的に接続するようにしたことを特徴とする回路遮断器のブスバー装置。
In the busbar device of the circuit breaker that is wired between the power supply side terminals of each circuit breaker for multiple circuit breakers installed in the panel side by side on the left and right,
After dividing the bus bar device into bus bar units corresponding one-to-one with the circuit breaker, each bus bar unit includes a bus bar conductor of each phase in its unit case, and matches the terminal arrangement of the circuit breaker. The connection terminal branched from the bus bar conductor is pulled out to the side of the unit case, and the connection terminal of this bus bar unit is plugged into the power supply side terminal of the circuit breaker and plugged between adjacent bus bar units. A busbar device for a circuit breaker, characterized in that the busbar conductors of each phase are electrically connected to each other by being connected in-line.
請求項1に記載のブスバー装置において、ブスバー導体の一端部にバネ性を持たせた接続アームを一体形成し、該接続アームを隣接するユニットケースのブスバー導体に重ね合わせてプラグイン式に接続するようにしたことを特徴とする回路遮断器のブスバー装置。   2. The bus bar device according to claim 1, wherein a connection arm having a spring property is integrally formed at one end of the bus bar conductor, and the connection arm is overlapped with the bus bar conductor of an adjacent unit case and connected in a plug-in manner. A busbar device for a circuit breaker, characterized in that it is configured as described above. 請求項2に記載のブスバー装置において、接続アームがブスバー導体の端部から複数本に分けて分岐延在した撓み性を有するフォーク状のアームになり、かつ該アームの先端部には隣接するユニットケースのブスバー導体に重なり合う凸状接触部を形成したことを特徴とする回路遮断器のブスバー装置。   3. The bus bar device according to claim 2, wherein the connecting arm is a fork-like arm having a flexibility that is branched and extended from an end portion of the bus bar conductor, and is adjacent to the tip portion of the arm. A busbar device for a circuit breaker, characterized in that a convex contact portion that overlaps the busbar conductor of the case is formed. 請求項1ないし3のいずれかに記載のブスバー装置において、各ブスバーユニットが、そのユニットケースの両端に着脱可能なサイドキャップ,サイドカバーを備えていることを特徴とする回路遮断器のブスバー装置。
4. The bus bar device according to claim 1, wherein each bus bar unit includes a detachable side cap and a side cover at both ends of the unit case.
JP2009281135A 2009-12-11 2009-12-11 Bus bar device of circuit breaker Withdrawn JP2011125149A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009281135A JP2011125149A (en) 2009-12-11 2009-12-11 Bus bar device of circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009281135A JP2011125149A (en) 2009-12-11 2009-12-11 Bus bar device of circuit breaker

Publications (1)

Publication Number Publication Date
JP2011125149A true JP2011125149A (en) 2011-06-23

Family

ID=44288466

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009281135A Withdrawn JP2011125149A (en) 2009-12-11 2009-12-11 Bus bar device of circuit breaker

Country Status (1)

Country Link
JP (1) JP2011125149A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2670006A1 (en) * 2011-01-27 2013-12-04 Yueqing Gaoke Environmental Co., Ltd. Plug-in type bus bar
CN106340427A (en) * 2015-07-16 2017-01-18 上海良信电器股份有限公司 Plug-in type miniature circuit breaker housing installation structure
CN110048310A (en) * 2019-04-30 2019-07-23 常州太平通讯科技有限公司 High voltage direct current intelligent power distribution unit
JP7493482B2 (en) 2021-04-30 2024-05-31 三菱電機株式会社 Circuit Breakers

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55100407U (en) * 1978-12-29 1980-07-12
JP2005135833A (en) * 2003-10-31 2005-05-26 Kyodo Ky Tec Corp Plug-in contactor and connection structure of the same
JP2007300706A (en) * 2006-04-28 2007-11-15 Nitto Electric Works Ltd Distribution panel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55100407U (en) * 1978-12-29 1980-07-12
JP2005135833A (en) * 2003-10-31 2005-05-26 Kyodo Ky Tec Corp Plug-in contactor and connection structure of the same
JP2007300706A (en) * 2006-04-28 2007-11-15 Nitto Electric Works Ltd Distribution panel

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2670006A1 (en) * 2011-01-27 2013-12-04 Yueqing Gaoke Environmental Co., Ltd. Plug-in type bus bar
EP2670006A4 (en) * 2011-01-27 2014-06-18 Yueqing Gaoke Environmental Co Ltd Plug-in type bus bar
CN106340427A (en) * 2015-07-16 2017-01-18 上海良信电器股份有限公司 Plug-in type miniature circuit breaker housing installation structure
CN110048310A (en) * 2019-04-30 2019-07-23 常州太平通讯科技有限公司 High voltage direct current intelligent power distribution unit
CN110048310B (en) * 2019-04-30 2020-10-02 常州太平通讯科技有限公司 High-voltage direct-current intelligent power distribution unit
JP7493482B2 (en) 2021-04-30 2024-05-31 三菱電機株式会社 Circuit Breakers

Similar Documents

Publication Publication Date Title
EP1964222B1 (en) Power distribution system with individually isolatable functional zones
US8547684B2 (en) Panelboard having a parallel feeder bars distribution
CN102027639A (en) Jumper, and structural unit comprising at least two modular electric terminals and a jumper
CN111326872A (en) Conductor for power distribution system
JP2011125149A (en) Bus bar device of circuit breaker
JP6209277B2 (en) Bus bar kit
JP2008029133A (en) Electrical distribution panel
KR20090006691U (en) Connector for connecting bus bars
CN111480272B (en) Gas insulated switchgear
JP6330187B2 (en) Board equipment wiring structure
JP2013187947A (en) Plug-in power distribution board
JP6540199B2 (en) Circuit breaker terminal adapter
JP5081853B2 (en) switchboard
WO2017183175A1 (en) Dc power supply distribution board
JP6433336B2 (en) Distribution board
US10411421B2 (en) Electrical distribution system and methods of assembling same
KR20060117647A (en) Connecting method between main busbar and sub busbar for an distribution switchboard and connecting apparatus thereof
JP2007288963A (en) Plug-in power distribution board
JP4876469B2 (en) switchboard
JP2006149118A (en) Interrupting device for low-voltage power distribution
JP2007318875A (en) Distribution panel for housing
JP5652836B2 (en) Bus structure of single-phase three-wire distribution board
KR101825604B1 (en) Structure for bonding bus bars
JP6452402B2 (en) Power storage device
JP5441032B2 (en) Bus structure of single-phase three-wire distribution board

Legal Events

Date Code Title Description
A625 Written request for application examination (by other person)

Free format text: JAPANESE INTERMEDIATE CODE: A625

Effective date: 20121015

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20130911

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20130918

A761 Written withdrawal of application

Free format text: JAPANESE INTERMEDIATE CODE: A761

Effective date: 20131114