JP5946689B2 - Distribution board - Google Patents

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JP5946689B2
JP5946689B2 JP2012103344A JP2012103344A JP5946689B2 JP 5946689 B2 JP5946689 B2 JP 5946689B2 JP 2012103344 A JP2012103344 A JP 2012103344A JP 2012103344 A JP2012103344 A JP 2012103344A JP 5946689 B2 JP5946689 B2 JP 5946689B2
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distribution board
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孝資 平井
孝資 平井
鈴木　智晴
智晴 鈴木
太 須佐
太 須佐
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河村電器産業株式会社
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Description

本発明は、分岐電路毎の電流を計測して個々の電路の消費電力を計測する機能を備えた分電盤に関する。 The present invention relates to a distribution board having a function of measuring the power consumption of each path by measuring the current of each electric branch.

従来より、個々の分岐電路に流れる電流を計測して、分岐電路毎に流れる電流、更には消費電力を計測する機器を備えた分電盤がある。例えば特許文献１では、分電盤内に個々の分岐電路の電流を計測するためセンサを備えた分岐電流センサユニット、計測した電流値を判断したり電力を演算する計測制御ユニット、電流異常の発生を報知する報知ユニットを配置して、閾値を設定して分岐電流が閾値を超えるとＬＥＤの発光で表示したり警報音を発報するよう構成し、きめ細かい電力の管理を可能としている。   2. Description of the Related Art Conventionally, there is a distribution board equipped with a device that measures the current flowing through each branch circuit and measures the current flowing for each branch circuit and further the power consumption. For example, in Patent Document 1, a branch current sensor unit provided with a sensor for measuring the current of each branch circuit in a distribution board, a measurement control unit for judging a measured current value or calculating power, and occurrence of a current abnormality A notification unit for notifying is provided, a threshold value is set, and when the branch current exceeds the threshold value, it is configured to display by LED emission or to issue an alarm sound, thereby enabling fine power management.

特開２００８−１３６２７９号公報JP 2008-136279 A

しかしながら上記特許文献１は、列設された分岐ブレーカに対して、電流センサを組み付けた１つの基板を分岐ブレーカの一次側に設置して分岐電流を計測するため、個々のセンサの配線は基板上にパターン形成することで容易に配設することができたが、センサを組み付ける場合は全ての分岐ブレーカを一旦外さなければ成らなかった。この作業は面倒であったし、１個のセンサが故障した場合でも基板の交換で対処するため、やはり全ての分岐ブレーカを外さなければならないため面倒であった。   However, since the above-mentioned Patent Document 1 measures the branch current by installing one board with a current sensor assembled to the branch breakers arranged on the primary side of the branch breaker, the wiring of each sensor is arranged on the board. However, when the sensor was assembled, all the branch breakers had to be removed once. This work was troublesome, and it was troublesome because all branch breakers had to be removed in order to deal with replacement of the board even when one sensor failed.

そのため、分岐ブレーカ自体に電流センサを内蔵させることができれば、別途センサを設ける必要がなくなるため、組み付けやメンテナンスが容易になると考えられる。ところが、この場合は分岐電路の電流値を入手するための配線が分岐ブレーカ毎に必要になるため、組み付け作業が大幅に改善できる見込みは期待できなかった。   For this reason, if a current sensor can be incorporated in the branch breaker itself, it is not necessary to provide a separate sensor, so that assembly and maintenance are facilitated. However, in this case, since wiring for obtaining the current value of the branch circuit is required for each branch breaker, it was not expected that the assembly work could be greatly improved.

そこで、本発明はこのような問題点に鑑み、分岐電路の電流情報を出力する端子を備えた分岐ブレーカを組み込んで別途電流センサを設ける必要を無くすと共に、分岐電路の電流情報を入手するための配線を個々の分岐ブレーカに対して施す必要のない電力計測装置を備えた分電盤を提供することを目的としている。 The present invention has been made in view of such problems, with eliminating the need to provide a separate current sensor crowded look set to branch breakers having a terminal for outputting the current information of the branch path, to obtain the current information of the branch path An object of the present invention is to provide a distribution board equipped with a power measuring device that does not require wiring for each branch breaker.

上記課題を解決する為に、請求項１の発明は、帯状に配設された単相３線式電路に沿って、少なくとも一方の側に複数の分岐ブレーカを列設した分電盤において、前記分岐ブレーカが、分岐した電路の電流を検出する電流センサ、及び検出した電流情報を出力する電流計測端子を備えると共に、前記電流計測端子に接続する複数の入力端子と、電路電圧情報を取得するための電圧情報入力部と、個々の分岐電路の消費電力を演算する電力演算部とを備えた電力計測装置を備え、前記電流計測端子は分電盤の前面側となる部位に配置されると共に、前記入力端子は前記電力計測装置の背面に、分岐ブレーカの配列に合わせて複数設けられ、更に前記電流計測端子、前記入力端子の何れか一方に、他方の接続を案内するガイド壁が設けられ、前記電流計測端子に合わせて前記入力端子を配置した前記電力計測装置が、前方からの押圧操作により、前記ガイド壁に案内されて前記入力端子が前記電流計測端子に接続されることを特徴とする。
この構成によれば、電力計測装置の背面に設けられた複数の入力端子は、押圧操作により個々の分岐ブレーカに設けられた電流計測端子に一度に接続され、簡易な操作で複数の分岐ブレーカに接続でき、分岐電路の電流情報を入手できる。よって、別途電流センサを必要としないし、分岐ブレーカ毎に配線することなく、電力計測装置は分岐電路の電流情報を入手して電力を演算できる。また、この接続は電力計測装置の背面に設けた端子により行われるが、ガイド壁により案内されるため端子位置が確認し辛くても容易に接続できる。 In order to solve the above-mentioned problems, the invention of claim 1 is a distribution board in which a plurality of branch breakers are arranged on at least one side along a single-phase three-wire electric circuit arranged in a strip shape. The branch breaker includes a current sensor for detecting the current of the branched electric circuit, a current measurement terminal for outputting the detected current information, and a plurality of input terminals connected to the current measurement terminal and for acquiring the electric circuit voltage information A power measurement device comprising a voltage information input unit and a power calculation unit for calculating the power consumption of each branch circuit, and the current measurement terminal is disposed at a front side of the distribution board, A plurality of the input terminals are provided on the back surface of the power measuring device according to the arrangement of the branch breakers, and further, a guide wall for guiding the other connection is provided on either the current measuring terminal or the input terminal, Above The power measurement device arranged to said input terminal in accordance with the flow measurement terminal, by the pressing operation from the front, the input terminal is guided by the guide wall, characterized in that it is connected to the current measuring terminals.
According to this configuration, the plurality of input terminals provided on the back surface of the power measuring device are connected to the current measuring terminals provided in the individual branch breakers by pressing operation at a time, and the plurality of branch breakers can be easily operated. It can be connected and current information of the branch circuit can be obtained. Therefore, a separate current sensor is not required, and the power measuring device can calculate the power by obtaining the current information of the branch circuit without wiring for each branch breaker. Moreover, although this connection is performed by the terminal provided in the back surface of the electric power measurement apparatus, since it is guided by the guide wall, it can connect easily even if it is difficult to confirm the terminal position.

請求項２の発明は、請求項１に記載の構成において、前記ガイド壁は、端子の周囲を囲む四角形の枠体であり、前記枠体内に配置された端子は、前記枠体内において挿入方向に直交する面上で移動可能に配置されて成ることを特徴とする。
この構成によれば、分電盤に組み付けた分岐ブレーカに位置ズレが生じても、端子は固定されずに遊びを有するため位置ズレを吸収でき、接続をスムーズに行うことができる。 According to a second aspect of the present invention, in the configuration according to the first aspect, the guide wall is a quadrangular frame surrounding the periphery of the terminal, and the terminal disposed in the frame is inserted in the insertion direction in the frame. It is characterized by being arranged so as to be movable on an orthogonal plane.
According to this configuration, even when a position shift occurs in the branch breaker assembled to the distribution board, the terminal is not fixed and has play, so that the position shift can be absorbed and the connection can be performed smoothly.

本発明によれば、電力計測装置の背面に設けられた複数の入力端子は、押圧操作により個々の分岐ブレーカに設けられた電流計測端子に一度に接続され、簡易な操作で複数の分岐ブレーカに接続でき、分岐電路の電流情報を入手できる。よって、別途電流センサが必要無いし、分岐ブレーカ毎に配線する必要もない。また、この接続は電力計測装置背面に設けた端子により行われるが、ガイド壁により案内されるため端子位置が確認し辛くても容易に接続できる。
また、分電盤内の分岐ブレーカ組み付けに位置ズレが生じても、端子は固定されずに遊びを有するため位置ズレを吸収でき、接続をスムーズに行うことができる。 According to the present invention, the plurality of input terminals provided on the back surface of the power measuring device are connected to the current measuring terminals provided in the individual branch breakers by pressing operation at a time, and can be connected to the plurality of branch breakers by a simple operation. It can be connected and current information of the branch circuit can be obtained. Therefore, there is no need for a separate current sensor, and there is no need for wiring for each branch breaker. Moreover, although this connection is performed by the terminal provided in the power measuring device back surface, since it is guided by the guide wall, it can connect easily even if it is difficult to confirm the terminal position.
Further, even if a position shift occurs in the assembly of the branch breaker in the distribution board, the terminal is not fixed and has play, so that the position shift can be absorbed and the connection can be made smoothly.

本発明に係る分電盤の一例を示す説明図であり、分電盤内に配置された分岐ブレーカと電力計測装置の正面図を示している。It is explanatory drawing which shows an example of the distribution board which concerns on this invention, and has shown the front view of the branch breaker arrange | positioned in the distribution board and an electric power measurement apparatus. 図１の左側面図である。It is a left view of FIG. 第１ユニット単体を示し、（ａ）は正面図、（ｂ）は左側面図、（ｃ）は右側面図である。The 1st unit single-piece | unit is shown, (a) is a front view, (b) is a left view, (c) is a right view. 電力計測装置の回路ブロック図である。It is a circuit block diagram of a power measuring device. 連結端子の端子配列説明図である。It is terminal arrangement explanatory drawing of a connection terminal. 分岐ブレーカの斜視図である。It is a perspective view of a branch breaker. 分岐ブレーカの内部構造を示す側面図である。It is a side view which shows the internal structure of a branch breaker. 分岐ブレーカの正面図である。It is a front view of a branch breaker. 図８のＡ部拡大図であり、（ａ）は電流計測端子が既定位置にある状態、（ｂ）は電流計測端子が移動した状態を示している。FIG. 9 is an enlarged view of part A in FIG. 8, where (a) shows a state in which the current measurement terminal is at a predetermined position, and (b) shows a state in which the current measurement terminal has moved.

以下、本発明を具体化した実施の形態を、図面を参照して詳細に説明する。図１は本発明に係る分電盤の一例を示す説明図であり、分電盤内に配置された分岐ブレーカと電力計測装置を示している。図１において、１は分岐ブレーカ、２ａは分岐ブレーカ１から電流情報を入手して消費電力を演算する第１ユニット、２ｂは第１ユニット２から消費電力情報を入手して管理する第２ユニットであり、１つ又は複数の第１ユニット２ａと１つの第２ユニット２ｂとで電力計測装置２を構成している。
また、図２は図１の左側面図を示している。図２に示すように第１ユニット２ａは列設された分岐ブレーカ１の前面側に配置され、図１に示すように第２ユニット２ｂは分岐ブレーカ１に隣接するように設置される。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory diagram showing an example of a distribution board according to the present invention, and shows a branch breaker and a power measuring device arranged in the distribution board. In FIG. 1, 1 is a branch breaker, 2 a is a first unit that obtains current information from the branch breaker 1 and calculates power consumption, and 2 b is a second unit that obtains and manages power consumption information from the first unit 2. Yes, one or a plurality of first units 2a and one second unit 2b constitute a power measuring device 2.
FIG. 2 is a left side view of FIG. As shown in FIG. 2, the first unit 2 a is disposed on the front side of the branch breakers 1 arranged in a row, and the second unit 2 b is installed adjacent to the branch breaker 1 as shown in FIG. 1.

尚、分電盤には、商用電力系統からの引き込み線が接続される主幹ブレーカを備えているがここでは省略してある。また図２において、一方の分岐ブレーカ１はカバーを外した状態を示している。また、Ｌは分電盤内に左右に亘り帯状に配設された銅バーから成る単相３線式電路を示している。   The distribution board is provided with a main breaker to which a lead-in line from the commercial power system is connected, but is omitted here. In FIG. 2, one branch breaker 1 shows a state in which the cover is removed. L represents a single-phase three-wire circuit formed of copper bars disposed in a strip shape on the left and right in the distribution board.

分岐ブレーカ１は、電路Ｌを挟むように上下２列で配置され、左右に複数列設して組み付けられている。そして図２に示すように、電路の開閉操作を行う操作ハンドル１０が設けられた前面には、分岐ブレーカ１により分岐された電路の電流情報を出力する電流計測端子１１が設けられている。また、上下端面の一方に単相３線式電路Ｌに接続する電源側端子１２、他方の側面には負荷へ至るケーブルを接続する負荷側端子１３がそれぞれ１列で設けられている。尚、１４は電流センサである。   The branch breakers 1 are arranged in two upper and lower rows so as to sandwich the electric circuit L, and are assembled in a plurality of rows on the left and right. As shown in FIG. 2, a current measurement terminal 11 that outputs current information of the electric circuit branched by the branch breaker 1 is provided on the front surface provided with the operation handle 10 for opening and closing the electric circuit. Further, a power supply side terminal 12 connected to the single-phase three-wire electric circuit L is provided on one of the upper and lower end surfaces, and a load side terminal 13 for connecting a cable leading to a load is provided in one row on the other side surface. Reference numeral 14 denotes a current sensor.

電力計測装置２を構成する第１ユニット２ａは、図３に示すように構成されている。図３は、第１ユニット単体の外観図を示し、（ａ）は正面図、（ｂ）は左側面図、（ｃ）は右側面図を示している。図３に示すように、第１ユニット２ａは一様な厚みを有する四角形板状に形成され、基板９で形成した背面には分岐ブレーカ１の電流計測端子１１に接続する入力端子２１が組み付けられている。入力端子２１は、分電盤に組み付けた分岐ブレーカ１の電流計測端子１１の位置に合わせて上下２列にそれぞれ６個設けられ、１つの第１ユニット２ａで１２個の分岐ブレーカ１に接続できるよう構成されている。   The 1st unit 2a which comprises the electric power measurement apparatus 2 is comprised as shown in FIG. 3A and 3B are external views of the first unit alone, where FIG. 3A is a front view, FIG. 3B is a left side view, and FIG. 3C is a right side view. As shown in FIG. 3, the first unit 2 a is formed in a rectangular plate shape having a uniform thickness, and an input terminal 21 connected to the current measurement terminal 11 of the branch breaker 1 is assembled on the back surface formed by the substrate 9. ing. Six input terminals 21 are provided in two upper and lower rows according to the position of the current measurement terminal 11 of the branch breaker 1 assembled on the distribution board, and can be connected to twelve branch breakers 1 by one first unit 2a. It is configured as follows.

そして、左右側部には第１ユニット２ａを連結して増設するための連結端子２２が設けられている。連結端子２２のうち、ユニットの左側は雄形に形成された連結された第１ユニット２ａを中継するための中継端子２２ａである。右側の雌形に形成された連結端子２２は、中継端子２２ａと連結すると共に第２ユニット２ｂを接続するための伝送用端子２２ｂである。この中継端子２２ａと伝送用端子２２ｂとを互いに接続することで、第１ユニット２ａを連結できるし、連結した第１ユニット２ａの列の右側に第２ユニット２ｂを接続できる。
尚、連結端子２２の雄型、雌形は逆でも良い。また連結端子２２は、例えば日本圧着端子製造株式会社製のプリント基板用コネクタ１５Ｐ−１．２５ＦＪが適用でき、直接連結できるよう基板９に堅牢に組み付けられている。また、２３はネジを挿通する取付穴、２４は係止爪であり、分電盤に固定する際使用される。 And the connection terminal 22 for connecting and expanding the 1st unit 2a is provided in the right-and-left side part. Among the connection terminals 22, the left side of the unit is a relay terminal 22a for relaying the connected first unit 2a formed in a male shape. The connection terminal 22 formed in the female shape on the right side is a transmission terminal 22b for connecting to the relay terminal 22a and connecting the second unit 2b. By connecting the relay terminal 22a and the transmission terminal 22b to each other, the first unit 2a can be connected, and the second unit 2b can be connected to the right side of the connected row of the first units 2a.
The male type and female type of the connecting terminal 22 may be reversed. The connection terminal 22 is, for example, a printed circuit board connector 15P-1.25FJ manufactured by Japan Crimp Terminal Manufacturing Co., Ltd., and is firmly assembled to the substrate 9 so that it can be directly connected. Reference numeral 23 denotes a mounting hole through which a screw is inserted, and reference numeral 24 denotes a locking claw, which is used for fixing to a distribution board.

図４は電力計測装置の回路ブロック図を示している。図４に示すように、第１ユニット２ａには１００Ｖ分岐電路の電力を演算する電力計測ＩＣ２６ａ、２００Ｖ分岐電路の電力を演算する電力計測ＩＣ２６ｂ、演算結果を記憶するメモリ２７、入力端子２１の接続状態を表示するＬＥＤ２８等を備えている。
ＬＥＤ２８は、入力端子２１の接続状態を通知するもので、入力端子２１毎に設けられている。尚、１００Ｖ、２００Ｖの何れの電圧情報で演算するかは、設置される分岐ブレーカ１に合わせて予め設定される。 FIG. 4 shows a circuit block diagram of the power measuring apparatus. As shown in FIG. 4, the first unit 2a is connected to a power measurement IC 26a that calculates the power of the 100V branch circuit, a power measurement IC 26b that calculates the power of the 200V branch circuit, a memory 27 that stores the calculation results, and an input terminal 21 connection. LED28 etc. which display a state are provided.
The LED 28 notifies the connection state of the input terminal 21, and is provided for each input terminal 21. It should be noted that whether the voltage information of 100V or 200V is calculated is set in advance according to the branch breaker 1 installed.

図５は第１ユニット２ａの連結端子２２の端子配列説明図を示し、連結部の模式図を示している。連結端子２２は、図５に示すように、単相３線式電路Ｌの１００Ｖ電圧情報を伝送する１００Ｖ情報端子Ｘ１及びＹ１、中性線電圧情報を伝送する中性線情報端子Ｎ、２００Ｖ電圧情報を伝送する２００Ｖ情報端子Ｘ２、全ての回路に電源を供給するための電源端子Ｐ、アース端子Ｇ、シリアル通信端子Ｓ、確認ボタン３４の操作信号を伝送するＬＥＤ端子Ｂ等を備えている。尚、実際のシリアル通信端子Ｓは複数の端子で構成されている。
こうして、一方の連結端子２２である中継端子２２ａと、他方の連結端子２２である伝送用端子２２ｂとは対称に端子が配置され、第１ユニット２ａを左右に直接連結可能としている。 FIG. 5 shows a terminal arrangement explanatory view of the connection terminals 22 of the first unit 2a, and shows a schematic diagram of the connection portion. As shown in FIG. 5, the connection terminal 22 includes 100V information terminals X1 and Y1 that transmit 100V voltage information of the single-phase three-wire circuit L, a neutral wire information terminal N that transmits neutral wire voltage information, and a 200V voltage. A 200V information terminal X2 for transmitting information, a power terminal P for supplying power to all circuits, a ground terminal G, a serial communication terminal S, an LED terminal B for transmitting an operation signal of the confirmation button 34, and the like are provided. The actual serial communication terminal S is composed of a plurality of terminals.
In this way, the relay terminal 22a which is one connection terminal 22 and the transmission terminal 22b which is the other connection terminal 22 are symmetrically arranged, and the first unit 2a can be directly connected to the left and right.

一方、第２ユニット２ｂは、図４に示すように単相３線式電路Ｌに接続して各電路の電圧情報を入手する電路接続部３１、外部機器と通信するための通信端子３２、第１ユニット２ａとの通信を制御すると共に電力計測装置全体を制御するＭＣＵ（Ｍｉｃｒｏ Ｃｏｎｔｒｏｌｌｅｒ Ｕｎｉｔ）３３、入力端子２１と電流計測端子１１との接続状態を確認するための確認ボタン３４、入力端子２１の接続状態を判定してＬＥＤ２８の点滅を制御するＬＥＤ駆動部３５、第１ユニット２ａに接続する第２ユニット端子３６、第１ユニット２ａを含む各回路を駆動するための電源３７等を備えている。
電路接続部３１から入手した電路電圧情報は、１００Ｖ情報端子Ｘ１及びＹ１、中性線情報端子Ｎ、２００Ｖ情報端子Ｘ２にそれぞれ供給される。また、第２ユニット端子３６は、連結端子２２と同一の端子配列で構成され、直接接続することも可能に形成されている。 On the other hand, as shown in FIG. 4, the second unit 2b is connected to a single-phase three-wire electric circuit L to obtain voltage information of each electric circuit, a communication terminal 32 for communicating with external equipment, MCU (Micro Controller Unit) 33 for controlling communication with one unit 2 a and controlling the entire power measuring device, a confirmation button 34 for confirming the connection state between the input terminal 21 and the current measurement terminal 11, and the input terminal 21 An LED driving unit 35 that determines the connection state and controls blinking of the LED 28, a second unit terminal 36 that is connected to the first unit 2a, a power source 37 that drives each circuit including the first unit 2a, and the like are provided. .
The circuit voltage information obtained from the circuit connection unit 31 is supplied to the 100V information terminals X1 and Y1, the neutral line information terminal N, and the 200V information terminal X2, respectively. Further, the second unit terminal 36 has the same terminal arrangement as that of the connection terminal 22 and is formed so as to be directly connectable.

図６は分岐ブレーカ１の内部構造を示すためにカバーを外した側面説明図、図７は分岐ブレーカ１の斜視図を示している。図６において、Ｌ２は電源側端子１２と負荷側端子１３の間の電路（分岐電路）、１５は分岐電路Ｌ２を開閉する接点部、１６は接点部１５の開閉を操作する開閉機構部、１７は過電流検出部である。そして、電流センサ１４は、分岐電路Ｌ２の電流を計測するホール素子１４ａとフェライトコア１４ｂで構成され、電流計測端子１１は４本のピンを有し、専用の基板１８に組み付けられている。   FIG. 6 is an explanatory side view with the cover removed to show the internal structure of the branch breaker 1, and FIG. 7 is a perspective view of the branch breaker 1. In FIG. 6, L2 is an electric circuit (branch electric circuit) between the power supply side terminal 12 and the load side terminal 13, 15 is a contact part for opening and closing the branch electric circuit L2, 16 is an opening / closing mechanism part for operating opening and closing of the contact part 15, Is an overcurrent detector. The current sensor 14 includes a Hall element 14a that measures the current of the branch circuit L2 and a ferrite core 14b. The current measurement terminal 11 has four pins and is assembled to a dedicated substrate 18.

電流計測端子１１は電源側端子１２の近傍に配置され、図７に示すように端子周囲は四角形の枠体１９で囲まれている。枠体１９はケース前面１ａに突出形成され、内側にはテーパ面１９ａが形成されている。テーパ面１９ａを設けることで、入力端子２１の電流計測端子１１への接続をし易くしている。   The current measurement terminal 11 is disposed in the vicinity of the power supply side terminal 12, and the periphery of the terminal is surrounded by a rectangular frame 19 as shown in FIG. The frame body 19 protrudes from the case front surface 1a, and a tapered surface 19a is formed inside. By providing the tapered surface 19a, the input terminal 21 can be easily connected to the current measurement terminal 11.

一方、基板１８は分岐ブレーカ１のケース内に形成された専用のキャビン１ｂ内に配置され、固定されること無くケース前面１ａに平行な面内で移動可能に配置されている。即ち、電流計測端子１１は枠体１９内でケース前面１ａに並行な面内で移動可能に配置されている。   On the other hand, the board | substrate 18 is arrange | positioned in the exclusive cabin 1b formed in the case of the branch breaker 1, and is arrange | positioned so that a movement in the surface parallel to the case front surface 1a is not fixed. In other words, the current measurement terminal 11 is arranged in the frame 19 so as to be movable in a plane parallel to the case front surface 1a.

図８は分岐ブレーカ１の正面図を示し、電流計測端子１１の正面図を示している。また、図９はＡ部拡大図を示し、電流計測端子１１の拡大図を示している。図８（ａ）は電流計測端子１１が既定位置にある状態、図８（ｂ）は電流計測端子１１が移動した状態を示している。基板１８は、図８に示すように挿入方向に直交する面上で最大で１ｍｍ程度移動でき、分岐ブレーカ１の組み付けによる位置ズレが発生しても、そのズレを吸収して入力端子２１の挿入をスムーズに行われるよう構成されている。   FIG. 8 shows a front view of the branch breaker 1 and shows a front view of the current measuring terminal 11. FIG. 9 shows an enlarged view of the A part, and shows an enlarged view of the current measuring terminal 11. FIG. 8A shows a state in which the current measurement terminal 11 is in the predetermined position, and FIG. 8B shows a state in which the current measurement terminal 11 has moved. As shown in FIG. 8, the board 18 can move up to about 1 mm on a plane orthogonal to the insertion direction, and even if a positional deviation occurs due to the assembly of the branch breaker 1, the deviation is absorbed and the input terminal 21 is inserted. It is configured to be performed smoothly.

一方、挿入する入力端子２１は箱状に形成され、図６に示すように第１ユニット２ａの基板９に組み付けられ、電流計測端子１１のピン１１ａを挿入する挿入孔２１ａを備えている。   On the other hand, the input terminal 21 to be inserted is formed in a box shape, and is assembled to the substrate 9 of the first unit 2a as shown in FIG. 6, and has an insertion hole 21a for inserting the pin 11a of the current measurement terminal 11.

上記の如く構成された分電盤は、次のように分岐ブレーカ１と電力計測装置２が接続され、動作する。分岐ブレーカ１が分電盤内に組み付けられたら、まず電力計測装置２の入力端子２１毎に演算する条件を設定する。このとき、接続する分岐ブレーカ１が１００Ｖ分岐か２００Ｖ分岐か実際の仕様に合わせて設定される。設定は第２ユニット２ｂの通信端子３２にパーソナルコンピュータ等の設定装置が接続されて実施される。   The distribution board configured as described above operates by connecting the branch breaker 1 and the power measuring device 2 as follows. When the branch breaker 1 is assembled in the distribution board, first, a condition to be calculated for each input terminal 21 of the power measuring device 2 is set. At this time, the branch breaker 1 to be connected is set to 100 V branch or 200 V branch according to the actual specification. The setting is performed by connecting a setting device such as a personal computer to the communication terminal 32 of the second unit 2b.

次に、第１ユニット２ａが装着される。個々の入力端子２１を電流計測端子１１の前方に配置し、前方から押圧操作することで接続される。このとき、係止爪２４が分岐ブレーカ１の所定部位に係止し、入力端子２１は枠体１９に案内されて電流計測端子１１に接続される。また、この装着操作において、操作途中の位置ズレや分岐ブレーカ１の装着ズレによる電流計測端子１１と入力端子２１との間の僅かな位置ずれに対して、電流計測端子１１は遊びを有して接続方向に直交する面内で移動するため、無理なく接続できる。こうして押圧操作が完了したら、取付穴２３にネジ止めして装着は完了する。
尚、第２ユニット２ｂは、分岐ブレーカ１の列に隣接する部位にネジ止め等で組み付けられる。 Next, the first unit 2a is mounted. Individual input terminals 21 are arranged in front of the current measuring terminals 11 and are connected by pressing from the front. At this time, the locking claw 24 is locked to a predetermined portion of the branch breaker 1, and the input terminal 21 is guided by the frame body 19 and connected to the current measurement terminal 11. Further, in this mounting operation, the current measurement terminal 11 has play with respect to a slight positional deviation between the current measurement terminal 11 and the input terminal 21 due to a positional shift during the operation or a mounting shift of the branch breaker 1. Since it moves in a plane perpendicular to the connection direction, it can be connected without difficulty. When the pressing operation is completed in this manner, the mounting is completed by screwing into the mounting hole 23.
The second unit 2b is assembled to a portion adjacent to the row of branch breakers 1 by screws or the like.

装着後は、第１ユニット２ａの各入力端子２１が電流計測端子１１に確実に接続されているかチェックを行う。これは、確認ボタン３４を押下することで実施され、押下している間、ＬＥＤ駆動部３５が起動して判定が成される。判定は、例えば接続されることで変化する入力端子２１の端子間抵抗値情報を入手し、抵抗の大きさから接続状態の判定が行われる。この場合、低抵抗状態であれば接続されていると判断してＬＥＤ２８を点灯するし、高抵抗状態であれば接続されていないと判断してＬＥＤ２８は点灯しない。   After the mounting, it is checked whether each input terminal 21 of the first unit 2a is securely connected to the current measurement terminal 11. This is performed by pressing the confirmation button 34, and while the button is being pressed, the LED driving unit 35 is activated to make a determination. For example, the terminal resistance value information of the input terminal 21 that changes as a result of being connected is obtained, and the connection state is determined from the magnitude of the resistance. In this case, if it is in the low resistance state, it is determined that it is connected and the LED 28 is turned on. If it is in the high resistance state, it is determined that it is not connected and the LED 28 is not turned on.

こうして接続が確認できたら、消費電力の計測（演算）が実施される。消費電力の演算は、各第１ユニット２ａにおいて演算され、第２ユニット２ｂから電路Ｌの電圧情報を入手して、例えば１０秒等の所定間隔で演算される。演算結果はメモリ２７に記憶されると共に第２ユニット２ｂに送信され、第２ユニット２ｂの通信端子３２に表示機器（図示せず）が接続されていたら、演算結果が表示される。
また、メモリ２７に蓄積されたデータは、任意のタイミングで第２ユニット２ｂに接続された表示機器の操作で引き出すことができ、使用電力量の演算や電気料金の演算等に利用できる。 When the connection is confirmed in this way, power consumption is measured (calculated). The power consumption is calculated in each first unit 2a, and voltage information of the electric circuit L is obtained from the second unit 2b, and is calculated at a predetermined interval such as 10 seconds. The calculation result is stored in the memory 27 and transmitted to the second unit 2b. If a display device (not shown) is connected to the communication terminal 32 of the second unit 2b, the calculation result is displayed.
Further, the data stored in the memory 27 can be extracted by operating the display device connected to the second unit 2b at an arbitrary timing, and can be used for calculation of the amount of power used, calculation of electric charges, and the like.

このように、電力計測装置２の背面に設けられた複数の入力端子２１は、押圧操作により個々の分岐ブレーカ１に設けられた電流計測端子１１に一度に接続され、簡易な操作で複数の分岐ブレーカ１に接続でき、分岐電路の電流情報を入手できる。よって、別途電流センサを必要としないし、分岐ブレーカ１毎に配線することなく、電力計測装置２は分岐電路の電流情報を入手して電力を演算できる。また、この接続は電力計測装置２の背面に設けた入力端子２１により行われるが、ガイド壁としての枠体１９により案内されるため端子位置が確認し辛くても容易に接続できる。
また、電流計測端子１１は接続方向に直交する面上で移動可能であるため、接続対象との間で位置ズレが発生しても枠体１９により確実に案内されるし、電流計測端子１１が移動して位置ズレを吸収するため、電流計測端子１１と入力端子２１との接続をスムーズに行うことができる。 As described above, the plurality of input terminals 21 provided on the back surface of the power measuring device 2 are connected to the current measurement terminals 11 provided in the individual branch breakers 1 by pressing operation at a time, and a plurality of branches are performed by a simple operation. It can be connected to the breaker 1 and current information of the branch circuit can be obtained. Therefore, a separate current sensor is not required, and the power measuring device 2 can calculate the power by obtaining the current information of the branch circuit without wiring for each branch breaker 1. Moreover, although this connection is performed by the input terminal 21 provided in the back surface of the electric power measurement apparatus 2, since it guides by the frame 19 as a guide wall, even if it is difficult to confirm a terminal position, it can connect easily.
In addition, since the current measurement terminal 11 can move on a plane orthogonal to the connection direction, the frame 19 reliably guides the current measurement terminal 11 even if a positional deviation occurs between the current measurement terminal 11 and the connection target. Since it moves and absorbs a position shift, the current measurement terminal 11 and the input terminal 21 can be smoothly connected.

尚、上記実施形態では、電流計測端子１１をピン１１ａを備えた雄型とし、入力端子２１を挿入孔２１ａを設けた雌形としたが、逆に構成しても良い。また、分岐ブレーカ１側に枠体１９を設けて内部の端子に遊びを持たせたが、電力計測装置２側の入力端子２１に枠体を設けて端子に遊びを持たせても良い。
また、分岐ブレーカ１を電路Ｌの両脇に列設しているが、一方の側だけに分岐ブレーカ１を列設しても良い。 In the above embodiment, the current measuring terminal 11 is a male type provided with a pin 11a, and the input terminal 21 is a female type provided with an insertion hole 21a. Further, although the frame 19 is provided on the branch breaker 1 side to give play to the internal terminals, a frame may be provided to the input terminal 21 on the power measuring device 2 side to give play to the terminals.
Further, although the branch breakers 1 are arranged on both sides of the electric circuit L, the branch breakers 1 may be arranged on only one side.

１・・分岐ブレーカ、２・・電力計測装置、１０・・操作ハンドル、１１・・電流計測端子、１２・・電源側端子、１３・・負荷側端子、１４・・電流センサ、１５・・接点部（開閉手段）、１６・・開閉機構部、１７・・過電流検出部（過電流検出手段）、１９・・枠体、２１・・入力端子、２６・・電力計測ＩＣ（電力演算部）。   1 .... Branch breaker, 2 .... Power measuring device, 10 .... Operation handle, 11 .... Current measuring terminal, 12 .... Power supply side terminal, 13 .... Load side terminal, 14 .... Current sensor, 15 .... Contact (Opening / closing means), 16 .... opening / closing mechanism part, 17 .... overcurrent detection part (overcurrent detection means), 19 .... frame body, 21 ... input terminal, 26 ... power measurement IC (power calculation part) .

Claims (2)

帯状に配設された単相３線式電路に沿って、少なくとも一方の側に複数の分岐ブレーカを列設した分電盤において、
前記分岐ブレーカが、分岐した電路の電流を検出する電流センサ、及び検出した電流情報を出力する電流計測端子を備えると共に、前記電流計測端子に接続する複数の入力端子と、電路電圧情報を取得するための電圧情報入力部と、個々の分岐電路の消費電力を演算する電力演算部とを備えた電力計測装置を備え、
前記電流計測端子は分電盤の前面側となる部位に配置されると共に、前記入力端子は前記電力計測装置の背面に、分岐ブレーカの配列に合わせて複数設けられ、
更に前記電流計測端子、前記入力端子の何れか一方に、他方の接続を案内するガイド壁が設けられ、
前記電流計測端子に合わせて前記入力端子を配置した前記電力計測装置が、前方からの押圧操作により、前記ガイド壁に案内されて前記入力端子が前記電流計測端子に接続されることを特徴とする分電盤。 In a distribution board in which a plurality of branch breakers are arranged on at least one side along a single-phase three-wire electric circuit arranged in a strip shape,
The branch breaker includes a current sensor that detects a current of a branched electric circuit, a current measurement terminal that outputs the detected current information, and acquires a plurality of input terminals connected to the current measurement terminal and electric circuit voltage information. A power measurement device including a voltage information input unit for calculating the power consumption of each branch circuit,
The current measurement terminals are arranged on the front side of the distribution board, and the input terminals are provided on the back surface of the power measurement device in accordance with the arrangement of branch breakers.
Furthermore, a guide wall for guiding the other connection is provided on either the current measuring terminal or the input terminal,
The power measuring device in which the input terminal is arranged in accordance with the current measuring terminal is guided by the guide wall by a pressing operation from the front, and the input terminal is connected to the current measuring terminal. Distribution board. 前記ガイド壁は、端子の周囲を囲む四角形の枠体であり、前記枠体内に配置された端子は、前記枠体内において挿入方向に直交する面上で移動可能に配置されて成ることを特徴とする請求項１記載の分電盤。 The guide wall is a quadrangular frame surrounding the periphery of the terminal, and the terminal arranged in the frame is arranged to be movable on a plane orthogonal to the insertion direction in the frame. The distribution board according to claim 1.
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