JPS60261308A - Switchboard - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は、特に内蔵機器を多段積に収容する低圧配電盤
の小形化に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention particularly relates to miniaturization of a low-voltage switchboard that accommodates built-in devices in multiple stacks.

〔発明の背景〕[Background of the invention]

低圧閉鎖配電盤は、内部に磁気駆動吹消コイルを持った
しゃ断器（以下ＡＣＢと称す）や開閉器（以下ＭＣＢと
称す）を内蔵し、各回路の保護を行なう盤であるが、い
わゆる３ＫＶ以上の高圧や１１ＫＶ以上の特別高圧盤と
異なｐ、２００Ｖや４０ＯＶクラスの低絶縁レベルの機
器に直結した盤構成のため、定められた盤寸法に多くの
回路の機器をコンパクトに合理的に収納された盤である
ことが特に要求される。このため、ＡＣＢ盤などでは、
従来２段積であったものが、ＡＣＢの小形化によシ３〜
４段積になってきている。A low-voltage closed switchboard is a board that has a built-in circuit breaker (hereinafter referred to as ACB) and switchgear (hereinafter referred to as MCB) with a magnetic drive blowing coil, and protects each circuit. Unlike high-voltage or special high-voltage panels of 11KV or higher, the panel structure is directly connected to equipment with low insulation levels such as p, 200V, and 40OV classes, so many circuit devices can be compactly and rationally housed within the specified panel dimensions. In particular, it is required to be a board. For this reason, on ACB discs etc.
The conventional two-layer structure has been improved by making the ACB more compact.
It's starting to stack up to 4 levels.

しかしながら、盤に多くのＡＣＢを収納すればするほど
、盤内部は複雑になシ、特に、母線部や機器に連絡する
ケーブル部などいわゆる盤の後部にその影響が大きい。However, the more ACBs are housed in a panel, the more complicated the interior of the panel becomes, and this has a particularly large effect on the so-called rear part of the panel, such as the busbar section and the cable section connecting to equipment.

しかも前述の如く低圧盤であるため、絶縁距離を多く必
要としないので、内部の母線導体などはせまいスペース
に数多く収納する例が多かった。この反面、作業性、保
守点検性を考えると、非常に困難であり、場所によって
は主回路ケーブルを布設接続した後では、盤内部に手が
入らないとか、見えないとかの不具合を生じている。特
に母線は盤のほぼ中央部になるので、その影響が著しい
。このため、従来は、盤巾を大きくするか、又は連絡母
線箱を追加して対処していた。このため、設置スペース
大やコスト大などの欠点があった。Moreover, as mentioned above, since it is a low-voltage board, it does not require a large insulation distance, so many internal bus conductors and the like are often housed in a small space. On the other hand, it is extremely difficult in terms of workability and maintenance/inspection, and depending on the location, problems may occur, such as being unable to access or see inside the panel after the main circuit cable has been laid and connected. . In particular, since the busbar is located almost in the center of the board, this effect is significant. Conventionally, this problem has been dealt with by increasing the panel width or by adding a connecting busbar box. For this reason, there are drawbacks such as a large installation space and high cost.

〔発明の目的〕[Purpose of the invention]

本発明の目的は、盤寸法を変えずに、連絡母線を設けた
小形の配電盤を提供することにある。An object of the present invention is to provide a small-sized power distribution board provided with a connecting bus bar without changing the board dimensions.

〔発明の概要〕[Summary of the invention]

本発明の配電盤は、列盤設置する境界部に連絡母線が互
に境界にまたがるように設置して、盤の小形化をはかっ
たものである。The power distribution board of the present invention is designed to reduce the size of the board by installing communication busbars at the boundary where the boards are installed so as to straddle the border.

〔発明の実施例〕[Embodiments of the invention]

以下、本発明の実施例を第１図ないし第５図によシ説明
する。Embodiments of the present invention will be described below with reference to FIGS. 1 to 5.

列盤配置された配電箱１，２，３．４は、４段積されて
いる。配電箱ｌの内部は受電用しゃ断器５を内蔵し、受
電用しゃ断器５は受電用導体６を）　経由して隣接の配
電箱２に連絡され、連絡母線７も１ から他の列盤分岐母線８，９に分岐され、配電用しゃ断
器１０等を経由して外部へ接続される。しや断器５，１
０や連絡母線７、分岐母線８．９等は、第２〜４図のよ
うに配置構成されている。すなわち、各配電箱１，２，
３．４は前部ユニット１１と後部ユニット１２とよシ構
成されている。The distribution boxes 1, 2, 3.4 arranged in rows are stacked in four stages. The inside of the distribution box 1 has a built-in power receiving breaker 5, and the power receiving breaker 5 is connected to the adjacent power distribution box 2 via the power receiving conductor 6), and the communication bus 7 is also connected from 1 to other panel branches. It is branched into busbars 8 and 9 and connected to the outside via a power distribution breaker 10 and the like. Shiya disconnector 5,1
0, the connecting bus 7, the branch bus 8, 9, etc. are arranged and configured as shown in FIGS. 2-4. That is, each distribution box 1, 2,
3.4 is composed of a front unit 11 and a rear unit 12.

前部ユニット１１は第１図で示すしゃ断器５゜１０（図
示は省略しである）４段積みで構成している。後部ユニ
ット１２は、連絡母線７や列盤母線８，９や図示を省略
しであるが、ケーブル側の導体やケーブルなどが配置さ
れている。The front unit 11 is composed of four stacked circuit breakers 5° and 10 (not shown) shown in FIG. In the rear unit 12, the communication busbar 7, the panel busbars 8 and 9, and although not shown in the drawings, conductors and cables on the cable side are arranged.

連絡母線７は帯状導体を使用すると共に、配電箱１と配
電箱２との中間位置１３にまたがるように配置されてい
る。云換えれば、連絡母線７の幅方向は、第３図に示す
ように中間位置１３を介して左右に約半分ずつ突出片７
Ａが配電箱１，２に突出している。連絡母線の上、下方
向両端は、上側分岐母線８および下側分岐母線９にボル
ト、ナツト等の締結部１４によシ接続している。負荷導
体１５は分岐導体８．９と直角方向に配置され、一端が
図示にしていない負荷に、他端が固定断路部１６に接続
している。固定断路部１６は各配電箱１〜４の仕切板１
人に取付けられ、他端は配電用しゃ断器１０と電気的に
接離する。The communication bus 7 uses a band-shaped conductor and is arranged so as to straddle the intermediate position 13 between the distribution box 1 and the distribution box 2. In other words, as shown in FIG.
A protrudes from the distribution boxes 1 and 2. The upper and lower ends of the communication busbar are connected to the upper branch busbar 8 and the lower branch busbar 9 by fastening portions 14 such as bolts and nuts. The load conductor 15 is arranged perpendicularly to the branch conductor 8.9 and is connected at one end to a load (not shown) and at the other end to a fixed disconnector 16. The fixed disconnect section 16 is connected to the partition plate 1 of each distribution box 1 to 4.
It is attached to a person, and the other end is electrically connected to and separated from the power distribution breaker 10.

この構成で、共通母線７は中間位置１３を介して配電箱
１，２に突出片７人を突出させている。With this configuration, the common bus bar 7 has seven protruding pieces protruding from the distribution boxes 1 and 2 via the intermediate position 13.

つまシ、突出片７Ａは各配電箱１，２に約半分ずつ突出
している。この結果、負荷導体１５および固定断路部１
６を各配電箱１，２に配置する時、突出片７人が邪魔に
ならず、負荷導体１５、固定断路部１６を偏芯すること
なく、直線に配置することができると共に、作業スペー
スが広く取れる。Approximately half of the tabs and protruding pieces 7A protrude from each distribution box 1, 2. As a result, the load conductor 15 and the fixed disconnection section 1
6 in each distribution box 1, 2, the 7 protruding pieces do not get in the way, and the load conductor 15 and fixed disconnector 16 can be arranged in a straight line without eccentricity, and the work space is saved. Can be taken widely.

この実施例の連絡母線７の上、下端で分岐母線８．９を
接続しているので、各分岐母線８，９は約１／２の電流
が流れる。この結果、各分岐母線８．９の大きさおよび
発生熱は、連絡母線７０半分でよく、その分だけ各配電
箱１〜４を縮小化できる。Since the branch buses 8 and 9 are connected at the upper and lower ends of the communication bus 7 in this embodiment, approximately 1/2 of the current flows through each branch bus 8 and 9. As a result, the size and heat generation of each branch busbar 8.9 may be half that of the connecting busbar, and each distribution box 1 to 4 can be reduced by that amount.

第５図の配電箱４の端部で連絡母線７Ｂを上側および下
側分岐母線８，９で連絡する必要がある場合、連絡母線
７八を被う絶縁カバー１７を配電箱側面、ヒ韓ければ、
盤を大巾に犬きくすることもなく、列盤で増設のような
時には、カバー１７を外せば、すぐに増設できる利点が
ある。If it is necessary to connect the connecting busbar 7B with the upper and lower branch buses 8 and 9 at the end of the distribution box 4 in FIG. Ba,
This has the advantage that the panels do not have to be stretched over a large area, and when a row of panels needs to be added, it can be added immediately by removing the cover 17.

〔発明の効果〕〔Effect of the invention〕

以上のように、発明の配電盤によれば、小型化できると
共に、作業スペースを広く取れるので、作業性が良い。As described above, according to the power distribution board of the invention, it is possible to reduce the size of the switchboard and to take up a large working space, resulting in good workability.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の実施例である低圧配電盤のブロック結
線を示す回路図、第２図は第１の低圧配置Ｉｔ盤の斜視
図、第３図は第２図のＡ−Ａｉ断面図、第４図は第２図
のＢ−Ｂ線断面図、第５図は本発明の他の実施例でめる
低圧配電盤の要部側断面図である。 １〜４・・・配電箱、７・・・連絡母線、８，９・・・
分岐母第１図 茗２図 第３図 第４図 第５図FIG. 1 is a circuit diagram showing block connections of a low-voltage distribution board according to an embodiment of the present invention, FIG. 2 is a perspective view of the first low-voltage distribution board, and FIG. 3 is a sectional view taken along A-Ai in FIG. 2. FIG. 4 is a cross-sectional view taken along the line B--B in FIG. 2, and FIG. 5 is a side cross-sectional view of essential parts of a low-voltage switchboard according to another embodiment of the present invention. 1 to 4... Distribution box, 7... Connection bus bar, 8, 9...
Branching Mother Figure 1 Meat 2 Figure 3 Figure 4 Figure 5

Claims (1)

【特許請求の範囲】 １、段積した配電盤の複数個を列盤配置し、各配電箱内
に配設された分岐母線に連絡母線を接続したものにおい
て、上記連絡母線は配電箱と配電箱との間の境界に配置
することを特徴とする配電盤。 ２、上記連絡母線の上、下端と分岐母線とを接続するこ
とを特徴とする特許請求の範囲第１項記載の配電盤。 ３、上記連絡母線は端部配電箱とこの配電箱に隣接する
配電盤との間の境界に配置することを特徴とする特許請
求の範囲第１項記載の配電盤。[Scope of Claims] 1. A plurality of stacked switchboards are arranged side by side, and a connection busbar is connected to a branch busbar arranged in each distribution box, wherein the connection busbar is connected to the distribution box and the distribution box. A switchboard characterized by being placed at the boundary between 2. The switchboard according to claim 1, wherein the upper and lower ends of the communication busbar are connected to a branch busbar. 3. The power distribution board according to claim 1, wherein the communication busbar is arranged at the boundary between the end power distribution box and the power distribution board adjacent to the power distribution box.