JP2014100023A - Distribution switchboard - Google Patents

Distribution switchboard Download PDF

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Publication number
JP2014100023A
JP2014100023A JP2012251299A JP2012251299A JP2014100023A JP 2014100023 A JP2014100023 A JP 2014100023A JP 2012251299 A JP2012251299 A JP 2012251299A JP 2012251299 A JP2012251299 A JP 2012251299A JP 2014100023 A JP2014100023 A JP 2014100023A
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detection signal
branch breaker
distribution board
signal line
closed space
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JP2012251299A
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JP6171182B2 (en
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Ikuo Kitahara
郁夫 北原
Motoki Umemura
基樹 梅村
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Nitto Kogyo Co Ltd
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Nitto Kogyo Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a technology capable of easily and orderly wiring within a distribution switchboard, detection signal lines drawn from a plurality of branch breakers in a distribution switchboard on which the plurality of branch breakers that integrates current measuring means such as CT and a current sensor are mounted.SOLUTION: The distribution switchboard includes an instrument mounting plate 3 on which a branch breaker is mounted, wherein a detection signal line 8 that transmits a detection signal detected by current measurement means within each branch breaker to outside is extracted from the branch breaker 5, and then is housed in a closed space 11 formed at a lower part of the instrument mounting plate 3.

Description

本発明は、変流器や電流センサ等の電流測定手段を組み込んだ分岐ブレーカを複数搭載した分電盤に関するものである。   The present invention relates to a distribution board equipped with a plurality of branch breakers incorporating current measuring means such as current transformers and current sensors.

特許文献1には、分岐ブレーカに設けられた電流計測手段である各変流器の検出信号線を、分岐ブレーカの負荷側に設けたコネクタから出線して、分岐ブレーカの負荷側の近傍を通って盤内の電流計測ユニットまで配線した構造が開示されている。   In Patent Document 1, the detection signal line of each current transformer that is a current measuring means provided in the branch breaker is led out from a connector provided on the load side of the branch breaker, and the vicinity of the load side of the branch breaker is shown. A structure is disclosed in which wiring is made to the current measurement unit in the panel.

各変流器で検出された検出信号は、検出信号線によって、分電盤内に配置された電流計測ユニットに送信されるため、分電盤内には、複数の分岐ブレーカから引き出され、電流計測ユニットまで配線される複数の検出信号線が存在することになる。   Since the detection signal detected by each current transformer is transmitted to the current measurement unit arranged in the distribution board by the detection signal line, the current is drawn from a plurality of branch breakers in the distribution board. There will be a plurality of detection signal lines wired to the measurement unit.

しかし、特許文献1のように、分岐ブレーカに設けられた電流計測手段の検出信号線を分岐ブレーカの負荷側の近傍を通って盤内の電流計測ユニットまで配線する構造では、分岐ブレーカに接続された負荷電線と電流計測手段の検出信号線とが混ざって配線の作業性が悪く、美観も優れないという問題があった。   However, as in Patent Document 1, in the structure in which the detection signal line of the current measurement means provided in the branch breaker is wired to the current measurement unit in the panel through the vicinity of the load side of the branch breaker, it is connected to the branch breaker. The load electric wires and the detection signal lines of the current measuring means are mixed, resulting in poor wiring workability and poor aesthetics.

特開2008-289301号公報JP 2008-289301 A

本発明の目的は前記の問題を解決し、CTや電流センサ等の電流測定手段を組み込んだ分岐ブレーカを複数搭載した分電盤において、電流測定手段で検出された検出信号を外部に送信する検出信号線を、分電盤内で整然と簡易に配線することができる技術を提供することである。   The object of the present invention is to solve the above-mentioned problems and to detect the detection signal detected by the current measuring means in an external distribution board equipped with a plurality of branch breakers incorporating current measuring means such as a CT or a current sensor. It is to provide a technique capable of arranging signal lines in an orderly and simple manner in a distribution board.

上記課題を解決するためになされた本発明の分電盤は、電流測定手段を組み込んだ分岐ブレーカを複数搭載した分電盤であって、分電盤内には、分岐ブレーカが取付けられる機器取付板を備え、各分岐ブレーカ内の電流測定手段で検出された検出信号を外部に送信する検出信号線を、分岐ブレーカから引出した後、該機器取付板の下部に形成される閉鎖空間に収納したことを特徴とするものである。   The distribution board of the present invention made to solve the above problems is a distribution board equipped with a plurality of branch breakers incorporating a current measuring means, and is mounted on a device in which a branch breaker is mounted in the distribution board. A detection signal line that includes a plate and transmits a detection signal detected by the current measuring means in each branch breaker to the outside is drawn out from the branch breaker and then housed in a closed space formed below the device mounting plate. It is characterized by this.

請求項2記載の発明は、請求項1記載の分電盤において、該検出信号線を、該閉鎖空間内に導く配線規制部を有することを特徴とするものである。   According to a second aspect of the present invention, in the distribution board according to the first aspect, the distribution board includes a wiring restricting portion that guides the detection signal line into the closed space.

請求項3記載の発明は、請求項1または2記載の分電盤において、該閉鎖空間の側面に、側面閉塞部を形成し、該側面閉塞部によって該閉鎖空間と隔てた空間を負荷電線配線空間としたことを特徴とするものである。   According to a third aspect of the present invention, in the distribution board according to the first or second aspect, a side wall closing portion is formed on a side surface of the closed space, and a space separated from the closed space by the side surface closing portion is a load electric wire wiring. It is characterized by a space.

本発明に係る分電盤は、分岐ブレーカが取付けられる機器取付板を備え、各分岐ブレーカ内の電流測定手段で検出された検出信号を外部に送信する検出信号線を、分岐ブレーカから引出した後、該機器取付板の下部に形成される閉鎖空間に収納することにより、分電盤内で整然と簡易に配線することができる。   The distribution board according to the present invention includes a device mounting plate to which a branch breaker is mounted, and after a detection signal line for transmitting a detection signal detected by a current measuring means in each branch breaker to the outside is pulled out from the branch breaker. By storing in a closed space formed in the lower part of the device mounting plate, the wiring can be neatly and easily arranged in the distribution board.

配線規制部を有する請求項2記載の発明によれば、検出信号線を、該閉鎖空間内に導くことができ、側面閉塞部を形成する請求項3記載の発明によれば、検出信号線用の配線収納空間と負荷電線用の配線空間とを、的確に区画することができる。   According to the second aspect of the invention having the wiring restricting portion, the detection signal line can be guided into the closed space, and the side closed portion is formed according to the third aspect of the invention. The wiring storage space and the wiring space for the load wire can be accurately partitioned.

電盤の内部を示す正面図である。It is a front view which shows the inside of an electrical panel. 要部断面図である。It is principal part sectional drawing. 要部斜視図である。It is a principal part perspective view. 他の実施形態における要部斜視図である。It is a principal part perspective view in other embodiment. 他の実施形態における要部斜視図である。It is a principal part perspective view in other embodiment.

以下に図面を参照しつつ、本発明の好ましい実施形態を示す。この実施形態の分電盤は、中央に3極の主幹バー6を備え、分岐ブレーカ5の電源側端子部7をプラグイン接続するタイプのものである。   Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. The distribution board of this embodiment is of a type that includes a three-pole main bar 6 in the center and plugs in the power supply side terminal portion 7 of the branch breaker 5.

図1は実施形態の分電盤の内部を示す正面図、図2は要部断面図である。これらの図において、1は合成樹脂製の本体ベースで、この本体ベース1上には、主幹ブレーカ4やその他の内部機器が装着される主幹ブレーカ取付基板2と、多数の分岐ブレーカ5やその他の内部機器が装着される機器取付板が取り付けられている。   FIG. 1 is a front view showing the inside of a distribution board according to the embodiment, and FIG. In these drawings, reference numeral 1 denotes a synthetic resin main body base on which a main breaker mounting board 2 on which a main breaker 4 and other internal devices are mounted, a number of branch breakers 5 and other A device mounting plate on which internal devices are mounted is mounted.

本体ベース1には配線用の孔部9が設けられ、孔部9の上方に分岐ブレーカ5の負荷側付近が位置するように配置されている。   The main body base 1 is provided with a hole 9 for wiring, and is arranged so that the vicinity of the load side of the branch breaker 5 is located above the hole 9.

機器取付板3の先端は孔部9の上方に位置しており、本実施形態では、この機器取付板3の先端に、側面閉塞部である塞板10を取り付けている。塞板10は、図2に示すように、下端部を内側に向けて折り曲げて折り曲げ辺14を形成し、強度向上を図っている。   The front end of the device mounting plate 3 is located above the hole 9, and in this embodiment, a closing plate 10 that is a side blocking portion is attached to the front end of the device mounting plate 3. As shown in FIG. 2, the closing plate 10 is bent toward the inner side to form a bent side 14 to improve the strength.

この塞板10により、孔部9の上方空間を二分し、機器取付板3の下方に、機器取付板3と塞板10と本体ベース1で囲まれた閉鎖空間11と、負荷電線配線空間12を形成している。この塞板10によって、本体ベース1の外側から孔部9を通して負荷電線を配線する際に、誤って負荷電線が閉鎖空間11に入り込むのを防止することができる。   The closing plate 10 bisects the upper space of the hole 9, and the closed space 11 surrounded by the device mounting plate 3, the closing plate 10 and the main body base 1, and the load wire wiring space 12 below the device mounting plate 3. Is forming. With this closing plate 10, it is possible to prevent the load wire from entering the closed space 11 by mistake when the load wire is wired from the outside of the main body base 1 through the hole 9.

主幹ブレーカ4の側部に上下2列に配置した分岐ブレーカ5の内部には、CTや電流センサ等の電流測定手段(図示しない)が組込まれており、分岐ブレーカ5から電流測定手段で検出された検出信号を外部に送信する検出信号線8が引き出されている。   Current measuring means (not shown) such as a CT or a current sensor is incorporated in the branch breakers 5 arranged in the upper and lower rows on the side of the main breaker 4 and is detected from the branch breaker 5 by the current measuring means. A detection signal line 8 for transmitting the detected signal to the outside is drawn out.

電流測定手段として、ホール素子を基板の略U字状の腕部に供えたものを用いる場合には、検出信号線8の他に、電流測定手段への電源供給を行う電源線(図示しない)も、分岐ブレーカ5から引き出され、2芯ケーブルが使用されて常に一体に取り扱われる。   In the case of using a current measuring means provided with a Hall element on a substantially U-shaped arm portion of the substrate, in addition to the detection signal line 8, a power supply line (not shown) for supplying power to the current measuring means Is pulled out from the branch breaker 5 and a two-core cable is used and is always handled as one piece.

分電盤の内部には、主幹ブレーカ4と、多数の分岐ブレーカ5の他に、電流計測ユニット18が取り付けられており、ここに、分岐ブレーカ5から引き出された検出信号線8が接続される。   In addition to the main breaker 4 and a number of branch breakers 5, a current measuring unit 18 is attached inside the distribution board, and a detection signal line 8 drawn from the branch breaker 5 is connected thereto. .

本実施形態では、各分岐ブレーカ5から引き出された検出信号線8を、分岐ブレーカ5から引き出した後、閉鎖空間11内に的確に導く配線規制部として、図3に示すように、塞板10の上部には、下側開口部より上側開口部が幅広であり、上側が大きい逆凸状に形成されたスリット15を形成している。   In the present embodiment, as shown in FIG. 3, the cover plate 10 is used as a wiring restricting portion that accurately guides the detection signal line 8 drawn from each branch breaker 5 into the closed space 11 after being drawn from the branch breaker 5. A slit 15 is formed on the upper portion of the upper portion of the upper portion of the lower portion so as to have an upper opening that is wider than the lower opening and has a larger upper protrusion.

検出信号線8は、スリット15から閉鎖空間11内に引き込まれ、閉鎖空間11内で纏められた後、閉鎖空間11から電流計測ユニット18に配線されている。また、電流計測ユニットからの検出信号線8には各々の接続コネクタ13が設けられ、この接続コネクタ13をスリット15の上側開口部20から挿通させて各々の分岐ブレーカ5からの検出信号線8の接続コネクタ13に接続した後、接続コネクタ部分をスリット15の下側開口部21に係合させて固定するものである。分岐ブレーカのない空きスペースや、電流検出機能のない分岐ブレーカに交換するときなど、接続コネクタを使用しないときには、図5のようにスリット15の下側開口部21に係合するようにしておけば、見栄えもよく、配線作業も容易なものである。また、スリット15付近に接続コネクタ13が位置しない場合や接続コネクタがない場合には、下側開口部21をさらに幅狭のものとして、検出信号線8を直接係止するようにしてもよい。なお、スリット15は機器取付板3の端部の設けたものでもよい。   The detection signal line 8 is drawn into the closed space 11 from the slit 15, collected in the closed space 11, and then wired from the closed space 11 to the current measuring unit 18. Further, each connection connector 13 is provided on the detection signal line 8 from the current measuring unit, and the connection connector 13 is inserted through the upper opening 20 of the slit 15 to connect the detection signal line 8 from each branch breaker 5. After connecting to the connection connector 13, the connection connector portion is engaged with the lower opening 21 of the slit 15 and fixed. When the connector is not used, such as when it is replaced with an empty space without a branch breaker or a branch breaker without a current detection function, it should be engaged with the lower opening 21 of the slit 15 as shown in FIG. It looks good and wiring is easy. Further, when the connection connector 13 is not located near the slit 15 or when there is no connection connector, the detection signal line 8 may be directly locked by making the lower opening 21 narrower. The slit 15 may be provided at the end of the device mounting plate 3.

塞板10は、図3、4に示すように、だるま孔16によって、機器取付板3と着脱自在に取り付けられており、検出信号線8の上記配線作業の後に取り付けてもよいし、手前方向にスライドして作業スペースを確保しながら配線作業を行うこともできる。   As shown in FIGS. 3 and 4, the closing plate 10 is detachably attached to the device mounting plate 3 by a daruma hole 16, and may be attached after the above-described wiring work of the detection signal line 8. It is also possible to perform wiring work while securing a work space by sliding to.

この他にも、配線作業の作業性の観点からは、あらかじめ電流計測ユニット18から複数本の配線ごとに接続コネクタを延長させ機器取付板の適宜複数箇所に配置し、塞板10を取り外すことなく、手前方向にスライドして作業スペースを確保した状態で、各接続コネクタ13を接続するのみで配線接続が完了するようにしてもよい。また、このように、接続コネクタを用いる場合、分岐ブレーカの取替えに際にも、接続コネクタの箇所で検出信号線8との接続を解除することができるため、検出信号線8を直接電流計測ユニット18に接続するものに比べて、検出信号線8をたどる距離が少なくて済み、作業性の向上を図ることができる。   In addition, from the viewpoint of workability of the wiring work, the connection connector is extended from the current measurement unit 18 for each of a plurality of wires in advance and arranged at a plurality of appropriate positions on the device mounting plate without removing the closing plate 10. The wiring connection may be completed only by connecting the connection connectors 13 in a state where the work space is secured by sliding forward. Further, when the connection connector is used as described above, since the connection with the detection signal line 8 can be released at the position of the connection connector even when the branch breaker is replaced, the detection signal line 8 is directly connected to the current measuring unit. Compared with the one connected to 18, the distance to follow the detection signal line 8 can be reduced, and workability can be improved.

上記実施形態では、塞板10の上部にスリット15を形成していたが、他の実施形態として図5に示すように、塞板10の下部に下部スリット17を形成し、その先端に略U字状の配線係合部19を設け、この配線係合部19から検出信号線8を閉鎖空間11内に引き込む構造とすることもできる。   In the above embodiment, the slit 15 is formed on the upper portion of the closing plate 10, but as another embodiment, as shown in FIG. 5, the lower slit 17 is formed on the lower portion of the closing plate 10 and the front end thereof is substantially U. A character-shaped wiring engaging portion 19 may be provided, and the detection signal line 8 may be drawn into the closed space 11 from the wiring engaging portion 19.

そのほか、上記実施形態では、塞板10を、機器取付板3と着脱自在に取り付ける独立部材として説明したが、塞板10は、機器取付板の先端部に一体に形成したものでよいし、または本体ベースと着脱自在に取り付ける独立部材とすることもできる。   In addition, in the said embodiment, although the obstruction board 10 was demonstrated as an independent member detachably attached to the apparatus attachment board 3, the obstruction board 10 may be integrally formed in the front-end | tip part of the apparatus attachment board, or It can also be an independent member that is detachably attached to the main body base.

1 本体ベース
2 主幹ブレーカ取付基板
3 機器取付板
4 主幹ブレーカ
5 分岐ブレーカ
6 主幹バー
7 電源側端子
8 検出信号線
9 孔部
10 塞板
11 閉鎖空間
12 負荷電線配線空間
13 接続コネクタ
14 折り曲げ辺
15 スリット
16 だるま孔
17 下部スリット
18 電流計測ユニット
19 配線係合部
20 上側開口部
21 下側開口部
DESCRIPTION OF SYMBOLS 1 Main body base 2 Main breaker mounting board 3 Equipment mounting plate 4 Main breaker 5 Branch breaker 6 Main bar 7 Power supply side terminal 8 Detection signal line 9 Hole 10 Closure board 11 Closed space 12 Load electric wire wiring space 13 Connection connector 14 Bending edge 15 Slit 16 Daruma hole 17 Lower slit 18 Current measurement unit 19 Wiring engagement portion 20 Upper opening 21 Lower opening

Claims (3)

電流測定手段を組み込んだ分岐ブレーカを複数搭載した分電盤であって、
分電盤内には、分岐ブレーカが取付けられる機器取付板を備え、
各分岐ブレーカ内の電流測定手段で検出された検出信号を外部に送信する検出信号線を、分岐ブレーカから引出した後、該機器取付板の下部に形成される閉鎖空間内に収納したことを特徴とする分電盤。
A distribution board equipped with multiple branch breakers incorporating current measurement means,
The distribution board is equipped with a device mounting plate to which a branch breaker can be attached.
The detection signal line for transmitting the detection signal detected by the current measuring means in each branch breaker to the outside is drawn out from the branch breaker and then housed in a closed space formed under the device mounting plate. Distribution board.
該検出信号線を、該閉鎖空間内に導く配線規制部を有することを特徴とする請求項1記載の分電盤。   The distribution board according to claim 1, further comprising a wiring restricting portion that guides the detection signal line into the closed space. 該閉鎖空間の側面に、側面閉塞部を形成し、該側面閉塞部によって該閉鎖空間と隔てた空間を負荷電線配線空間としたことを特徴とする請求項1または2記載の分電盤。   The distribution board according to claim 1 or 2, wherein a side wall closing portion is formed on a side surface of the closed space, and a space separated from the closed space by the side wall closing portion is a load electric wire wiring space.
JP2012251299A 2012-11-15 2012-11-15 Distribution board Expired - Fee Related JP6171182B2 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005006468A (en) * 2003-06-13 2005-01-06 Matsushita Electric Works Ltd Breaker-storing device
JP2008289301A (en) * 2007-05-18 2008-11-27 Nitto Electric Works Ltd Distribution board with monitoring function
JP2010057238A (en) * 2008-08-27 2010-03-11 Toshiba Lighting & Technology Corp Distribution panel
JP2012120322A (en) * 2010-11-30 2012-06-21 Tempearl Ind Co Ltd Residential distribution board

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005006468A (en) * 2003-06-13 2005-01-06 Matsushita Electric Works Ltd Breaker-storing device
JP2008289301A (en) * 2007-05-18 2008-11-27 Nitto Electric Works Ltd Distribution board with monitoring function
JP2010057238A (en) * 2008-08-27 2010-03-11 Toshiba Lighting & Technology Corp Distribution panel
JP2012120322A (en) * 2010-11-30 2012-06-21 Tempearl Ind Co Ltd Residential distribution board

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