JP2015070687A - Distribution board, branch breaker and communication apparatus - Google Patents

Distribution board, branch breaker and communication apparatus Download PDF

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JP2015070687A
JP2015070687A JP2013202286A JP2013202286A JP2015070687A JP 2015070687 A JP2015070687 A JP 2015070687A JP 2013202286 A JP2013202286 A JP 2013202286A JP 2013202286 A JP2013202286 A JP 2013202286A JP 2015070687 A JP2015070687 A JP 2015070687A
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distribution board
power line
communication
terminal portion
communication device
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JP6284096B2 (en
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梅田　直樹
Naoki Umeda
直樹 梅田
鈴木　淳一
Junichi Suzuki
淳一 鈴木
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Panasonic Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a distribution board capable of improving conditions of PLC communication between a smart meter and a distribution board by modifying installation mechanism of a PLC communication adapter.SOLUTION: The distribution board includes a communication unit which performs communication with an external watthour meter having a communication function. The communication apparatus includes: a first terminal connected to a commercial power line; a second terminal connected to the load side; a conductive path that connects the first terminal and the second terminal thereacross; and a communication section including a modem circuit being insulated from the conductive path, which converts a power line transmission signal into a digital signal via the modem circuit and overlaps a digital signal from the external with the power line transmission signal via the modem circuit.

Description

本発明は、分電盤、分岐ブレーカ及び通信装置に関する。   The present invention relates to a distribution board, a branch breaker, and a communication device.

ホームエリアネットワーク（Ｈｏｍｅ Ａｒｅａ Ｎｅｔｗｏｒｋ；ＨＡＮ）は、空気調和機（エアコン）、蓄電池、太陽光発電装置などの宅内機器と、これらを制御するコントローラにより構成される。   A home area network (HAN) is configured by home appliances such as an air conditioner (air conditioner), a storage battery, and a solar power generation device, and a controller that controls these devices.

スマートメータとＨＡＮ側機器との間の通信は「Ｂルート通信」と称される。Ｂルート通信は通常、ＰＬＣ（パワーラインコミュニケーション；電力線搬送通信）若しくは特定小電力無線特別小型周波数帯信号を介して行われる。   Communication between the smart meter and the HAN side device is referred to as “B route communication”. B route communication is normally performed via PLC (power line communication; power line carrier communication) or a specific low power radio special small frequency band signal.

なお、特許文献１には、電力線搬送により電力量の遠隔検針を行うシステムであって、絶縁相当の商用電源周波数分の遮断を行い、電力変換部相当の電源部で通信用の駆動電力を生成するシステムが開示されている。   Patent Document 1 discloses a system for performing remote meter reading of electric energy by power line conveyance, which cuts off the power supply frequency equivalent to insulation and generates drive power for communication by the power supply unit equivalent to the power conversion unit. A system is disclosed.

特開２００９−０１７５４３号公報JP 2009-017543 A

Ｂルート通信を構築する際にＰＬＣ通信を用いる場合には、以下のような問題点が考えられる。まず、一般的な壁コンセントにＰＬＣ通信アダプタの電源プラグを差し込むと、ＰＬＣ通信アダプタとスマートメータとの距離が長くなり、よって信号減衰が大きくなることで通信条件が不利になる。また、一般的な壁コンセントには、ＰＬＣ通信に対するノイズ源となる家電機器の電源プラグが直接差し込まれることが多く、このことによっても通信条件は不利になり得る。更に、通信条件を良くするためにはＡＣ１００Ｖ線の接続入れ替え等が必要となり、この施工は必ずしも容易なことではない。   When PLC communication is used when constructing B route communication, the following problems can be considered. First, when the power plug of the PLC communication adapter is inserted into a general wall outlet, the distance between the PLC communication adapter and the smart meter becomes longer, thereby increasing the signal attenuation, which is disadvantageous for communication conditions. Moreover, the power plug of the household appliance used as the noise source with respect to PLC communication is often directly inserted in a general wall outlet, and this may also be disadvantageous for communication conditions. Furthermore, in order to improve the communication conditions, it is necessary to change the connection of the AC 100V line, and this construction is not always easy.

上記課題に鑑みて、本発明に係る分電盤の目的とするところは、ＰＬＣ通信アダプタの設置機構を改良することによりスマートメータと分電盤とのＰＬＣ通信の通信条件をより良好なものにすることにある。 In view of the above problems, the purpose of the distribution board according to the present invention is to improve the communication conditions of PLC communication between the smart meter and the distribution board by improving the installation mechanism of the PLC communication adapter. There is to do.

本発明に係る分電盤は、外部の通信機能付き電力量計と通信する通信装置を含む分電盤であって、
前記通信装置は、
商用系統側に接続される第１の端子部と、
負荷側に接続される第２の端子部と、
前記第１の端子部及び前記第２の端子部間を接続する導電経路と、
モデム回路を含み、前記導電経路と絶縁される一方で、電力線搬送信号をモデム回路によりデジタル信号に変換し、更に外部からのデジタル信号を、モデム回路を介して電力線搬送信号に重畳する通信部と
を備える
分電盤。 The distribution board according to the present invention is a distribution board including a communication device that communicates with an external energy meter with a communication function,
The communication device
A first terminal connected to the commercial system side;
A second terminal connected to the load side;
A conductive path connecting the first terminal portion and the second terminal portion;
A communication unit that includes a modem circuit and is isolated from the conductive path, converts a power line carrier signal into a digital signal by the modem circuit, and further superimposes an external digital signal on the power line carrier signal via the modem circuit; Distribution board equipped with.

本発明に係る分電盤において、
前記第１の端子部は、外部の通信機能付き電力量計に接続され、
前記第２の端子部は、主幹ブレーカに導出する第１の電力線に接続され、
前記通信装置が前記分電盤内のアンペアブレーカ取り付け部に装着されてもよい。 In the distribution board according to the present invention,
The first terminal portion is connected to an external energy meter with a communication function,
The second terminal portion is connected to a first power line leading to the main breaker,
The communication device may be mounted on an ampere breaker mounting portion in the distribution board.

本発明に係る分電盤は、前記通信装置が前記主幹ブレーカの筐体内に配置されていてもよい。 In the distribution board according to the present invention, the communication device may be arranged in a casing of the main breaker.

本発明に係る分電盤において、
前記第１の端子部は、主幹ブレーカから導出された導電バーに接続され、
前記第２の端子部は、外部の負荷回路に導出する第２の電力線に接続され、
前記通信装置が前記分電盤内の分岐ブレーカ設置スペースに装着されてもよい。 In the distribution board according to the present invention,
The first terminal portion is connected to a conductive bar derived from the main breaker,
The second terminal portion is connected to a second power line leading to an external load circuit,
The communication device may be installed in a branch breaker installation space in the distribution board.

本発明に係る分岐ブレーカは、外部の通信機能付き電力量計と通信する通信装置を含む分岐ブレーカであって、
前記通信装置は、
主幹ブレーカから導出された導電バーに接続される第１の端子部と、
外部の負荷回路に導出する第２の電力線に接続される第２の端子部と、
前記第１の端子部及び前記第２の端子部間を接続する導電経路と、
モデム回路を含み、前記導電経路と絶縁される一方で、電力線搬送信号をモデム回路によりデジタル信号に変換し、更に外部からのデジタル信号を、モデム回路を介して電力線搬送信号に重畳する通信部と
を備える。 A branch breaker according to the present invention is a branch breaker including a communication device that communicates with an external energy meter with a communication function,
The communication device
A first terminal connected to a conductive bar derived from the main breaker;
A second terminal connected to a second power line leading to an external load circuit;
A conductive path connecting the first terminal portion and the second terminal portion;
A communication unit that includes a modem circuit and is isolated from the conductive path, converts a power line carrier signal into a digital signal by the modem circuit, and further superimposes an external digital signal on the power line carrier signal via the modem circuit; Is provided.

本発明に係る通信装置は、外部の通信機能付き電力量計と通信する通信装置であって、
商用系統側に接続される第１の端子部と、
負荷側に接続される第２の端子部と、
前記第１の端子部及び前記第２の端子部間を接続する導電経路と、
モデム回路を含み、前記導電経路と絶縁される一方で、電力線搬送信号をモデム回路によりデジタル信号に変換し、更に外部からのデジタル信号を、モデム回路を介して電力線搬送信号に重畳する通信部と、
を備える。 A communication device according to the present invention is a communication device that communicates with an external energy meter with a communication function,
A first terminal connected to the commercial system side;
A second terminal connected to the load side;
A conductive path connecting the first terminal portion and the second terminal portion;
A communication unit that includes a modem circuit and is isolated from the conductive path, converts a power line carrier signal into a digital signal by the modem circuit, and further superimposes an external digital signal on the power line carrier signal via the modem circuit; ,
Is provided.

本発明に係る通信装置において、
前記第１の端子部は、外部の通信機能付き電力量計に接続され、
前記第２の端子部は、主幹ブレーカに導出する第１の電力線に接続され、
所定の分電盤内のアンペアブレーカ取り付け部に装着されてもよい。 In the communication apparatus according to the present invention,
The first terminal portion is connected to an external energy meter with a communication function,
The second terminal portion is connected to a first power line leading to the main breaker,
You may mount | wear with the ampere breaker attachment part in a predetermined distribution board.

本発明に係る通信装置は、所定の分電盤の主幹ブレーカの筐体内に配置されていてもよい。 The communication device according to the present invention may be arranged in a casing of a main breaker of a predetermined distribution board.

本発明に係る通信装置において、
前記第１の端子部は、所定の分電盤の主幹ブレーカから導出された導電バーに接続され、
前記第２の端子部は、外部の負荷回路に導出される第２の電力線に接続され、
所定の分電盤内の分岐ブレーカ設置スペースに装着されてもよい。 In the communication apparatus according to the present invention,
The first terminal portion is connected to a conductive bar derived from a main breaker of a predetermined distribution board,
The second terminal portion is connected to a second power line led to an external load circuit,
You may mount | wear with the branch breaker installation space in a predetermined distribution board.

本発明に係る分電盤を用いることにより、分電盤周辺のＰＬＣ通信アダプタの設置機構を改良することができ、このことによりスマートメータと分電盤とのＰＬＣ通信の通信条件をより良好なものにすることができる。   By using the distribution board according to the present invention, it is possible to improve the installation mechanism of the PLC communication adapter around the distribution board, thereby improving the communication conditions of PLC communication between the smart meter and the distribution board. Can be a thing.

本発明の実施の形態１に係る分電盤の全体ブロック図である。1 is an overall block diagram of a distribution board according to Embodiment 1 of the present invention. 図２（ａ）は、従来の分電盤の一例のブロック図である。図２（ｂ）は、実施の形態１に係る分電盤の一例のブロック図である。FIG. 2A is a block diagram of an example of a conventional distribution board. FIG. 2B is a block diagram of an example of the distribution board according to the first embodiment. 分電盤の内部構造を示す斜視図である。It is a perspective view which shows the internal structure of a distribution board. 図４（ａ）は、本発明の実施の形態２に係る分電盤の全体ブロック図である。図４（ｂ）は、本発明の実施の形態２に係るＰＬＣ通信アダプタの別の具体例のブロック図である。FIG. 4A is an overall block diagram of a distribution board according to Embodiment 2 of the present invention. FIG. 4B is a block diagram of another specific example of the PLC communication adapter according to Embodiment 2 of the present invention. 図５（ａ）は、実施の形態２に係るＰＬＣ通信アダプタの斜視図である。図５（ｂ）は、実施の形態２に係るＰＬＣ通信アダプタの斜視図である。FIG. 5A is a perspective view of the PLC communication adapter according to the second embodiment. FIG. 5B is a perspective view of the PLC communication adapter according to the second embodiment.

〔実施の形態１〕
以下、図１〜図３を用いて、実施の形態１に係る分電盤を説明する。 [Embodiment 1]
Hereinafter, the distribution board according to Embodiment 1 will be described with reference to FIGS.

＜１−１．分電盤及びＰＬＣ通信アダプタの構成＞
図１は、本発明の実施の形態１に係る分電盤１０の全体ブロック図である。図１に示す分電盤１０は、通信機能付き電力量計、即ちスマートメータ１００と接続する。スマートメータ１００と分電盤１０はＢルート通信を構成する。本実施の形態では、スマートメータ１００と分電盤１０はＰＬＣ（パワーラインコミュニケーション；電力線搬送通信）によりＢルート通信を行う。 <1-1. Configuration of distribution board and PLC communication adapter>
FIG. 1 is an overall block diagram of a distribution board 10 according to Embodiment 1 of the present invention. A distribution board 10 shown in FIG. 1 is connected to a watt-hour meter with a communication function, that is, a smart meter 100. The smart meter 100 and the distribution board 10 constitute B route communication. In the present embodiment, smart meter 100 and distribution board 10 perform B route communication by PLC (power line communication; power line carrier communication).

図１に示す分電盤１０は、主幹ブレーカ１２、主幹ブレーカ１２に付属する複数の分岐ブレーカ１４、及び主幹ブレーカ１２と分岐ブレーカ１４とを接続する導電バー１６とにより構成される。   A distribution board 10 shown in FIG. 1 includes a main breaker 12, a plurality of branch breakers 14 attached to the main breaker 12, and a conductive bar 16 that connects the main breaker 12 and the branch breaker 14.

更に、分電盤１０にはＰＬＣ通信アダプタ２０が配置される。ＰＬＣ通信アダプタ２０は、スマートメータ１００と通信するための通信装置である。本実施の形態のＰＬＣ通信アダプタ２０は、商用系統側、即ちスマートメータ１００に接続される第１の端子部１１と、負荷側、即ち主幹ブレーカ１２に導出する電力線に接続される第２の端子部１３を有する。第１の端子部１１と第２の端子部１３とは導電経路２１により接続される。また、ＰＬＣ通信アダプタ２０は、インダクタ２２とＡＣ／ＤＣコンバータ３０から成る電力変換部を備える。電力変換部は、導電経路２１上の商用電力を電力線搬送（ＰＬＣ）に必要な電力に変換する。更に、ＰＬＣ通信アダプタ２０は、変圧回路を含む絶縁部２８とモデム回路２４とＣＰＵ回路２６とから成る通信部を備える。通信部は、導電経路２１と絶縁される一方で、電力線搬送信号をモデム回路２４によりデジタル信号に変換し、更に外部からのデジタル信号を、モデム回路２４を介して電力線搬送信号に重畳する。   Further, a PLC communication adapter 20 is disposed on the distribution board 10. The PLC communication adapter 20 is a communication device for communicating with the smart meter 100. The PLC communication adapter 20 of the present embodiment includes a first terminal unit 11 connected to the commercial system side, i.e., the smart meter 100, and a second terminal connected to the load side, i.e., the power line leading to the main breaker 12. Part 13. The first terminal portion 11 and the second terminal portion 13 are connected by a conductive path 21. Further, the PLC communication adapter 20 includes a power conversion unit including an inductor 22 and an AC / DC converter 30. The power conversion unit converts commercial power on the conductive path 21 into power necessary for power line carrier (PLC). Furthermore, the PLC communication adapter 20 includes a communication unit including an insulating unit 28 including a transformer circuit, a modem circuit 24, and a CPU circuit 26. While the communication unit is insulated from the conductive path 21, the power line carrier signal is converted into a digital signal by the modem circuit 24, and the digital signal from the outside is further superimposed on the power line carrier signal via the modem circuit 24.

モデム回路２４が出力するデジタル信号は、ＣＰＵ回路２６を介して、（図示しない）外部装置、例えば、ＨＥＭＳ（ホームエネルギマネジメントシステム）コントローラに出力される。外部装置、例えば、ＨＥＭＳコントローラからのデジタル信号は、ＣＰＵ回路２６を介してモデム回路２４に入力され電力線搬送信号に重畳される。   The digital signal output from the modem circuit 24 is output to an external device (not shown) such as a HEMS (Home Energy Management System) controller via the CPU circuit 26. A digital signal from an external device such as a HEMS controller is input to the modem circuit 24 via the CPU circuit 26 and is superimposed on the power line carrier signal.

図１に示すように、本実施の形態におけるＰＬＣ通信アダプタ２０は、分電盤１０の内部において、主幹ブレーカ１２とスマートメータ１００とに接続して主幹ブレーカ１２とスマートメータ１００との間に配置される。   As shown in FIG. 1, the PLC communication adapter 20 according to the present embodiment is connected between the main breaker 12 and the smart meter 100 inside the distribution board 10 and disposed between the main breaker 12 and the smart meter 100. Is done.

＜１−２．分電盤及びＰＬＣ通信アダプタの動作＞
スマートメータ１００と主幹ブレーカ１２との間に配置されるＰＬＣ通信アダプタ２０は、電力変換部により導電経路２１上の商用電力を電力線搬送（ＰＬＣ）に必要な電力に変換する。更に、ＰＬＣ通信アダプタ２０は、通信部により、電力線搬送信号をモデム回路２４によりデジタル信号に変換し、更に外部からのデジタル信号を、モデム回路２４を介して電力線搬送信号に重畳する。このようにして、ＰＬＣ通信アダプタ２０はスマートメータ１００と分電盤１０との間のＰＬＣ通信を実現する。 <1-2. Operation of distribution board and PLC communication adapter>
The PLC communication adapter 20 disposed between the smart meter 100 and the main breaker 12 converts commercial power on the conductive path 21 into power necessary for power line carrier (PLC) by the power conversion unit. Further, the PLC communication adapter 20 converts the power line carrier signal into a digital signal by the modem circuit 24 by the communication unit, and further superimposes the external digital signal on the power line carrier signal via the modem circuit 24. In this way, the PLC communication adapter 20 realizes PLC communication between the smart meter 100 and the distribution board 10.

この際、ＰＬＣ通信アダプタ２０は、壁コンセントに接続されることはなく、ＰＬＣ通信アダプタとスマートメータとの距離が長くなることによる信号減衰が発生しない。更に、壁コンセントに電源プラグを介して差し込まれる他の家電機器が発生するノイズ源が、直近に配置されることがないため、ＰＬＣ通信の邪魔になるようなことがない。   At this time, the PLC communication adapter 20 is not connected to a wall outlet, and signal attenuation due to an increase in the distance between the PLC communication adapter and the smart meter does not occur. Furthermore, since noise sources generated by other household electrical appliances that are inserted into the wall outlet via the power plug are not arranged in the immediate vicinity, there is no possibility of disturbing PLC communication.

＜１−３．まとめ＞
以上のように、実施の形態１に係る分電盤は、外部の通信機能付き電力量計と通信する通信装置を含む分電盤である。通信装置は、商用系統側に接続される第１の端子部と、負荷側に接続される第２の端子部と、第１の端子部及び第２の端子部間を接続する導電経路と、モデム回路を含み、導電経路と絶縁される一方で、電力線搬送信号をモデム回路によりデジタル信号に変換し、更に外部からのデジタル信号を、モデム回路を介して電力線搬送信号に重畳する通信部とを備える。 <1-3. Summary>
As described above, the distribution board according to Embodiment 1 is a distribution board including a communication device that communicates with an external energy meter with a communication function. The communication device includes a first terminal connected to the commercial system side, a second terminal connected to the load, a conductive path connecting between the first terminal and the second terminal, A communication unit that includes a modem circuit and is isolated from the conductive path, converts a power line carrier signal into a digital signal by the modem circuit, and further superimposes an external digital signal on the power line carrier signal via the modem circuit; Prepare.

このように、実施の形態１に係る分電盤におけるＰＬＣ通信アダプタは、分電盤内の既存の電気系統に挿入されてＢルートのためのＰＬＣ通信を実現する。よって本実施の形態では、ＰＬＣ通信アダプタのために新たな電気系統を設置する必要や、既存の電位系統を変更する必要が無い。更に、ＰＬＣ通信のための良好な通信条件を設定することができる。 As described above, the PLC communication adapter in the distribution board according to Embodiment 1 is inserted into an existing electrical system in the distribution board to realize PLC communication for the B route. Therefore, in this embodiment, there is no need to install a new electric system for the PLC communication adapter or to change an existing potential system. Furthermore, favorable communication conditions for PLC communication can be set.

＜１−４．実施の形態１の具体例＞
＜１−４−１．具体例１＞
図２を用いて、実施の形態１に係る分電盤１０の具体例を説明する。 <1-4. Specific Example of Embodiment 1>
<1-4-1. Specific Example 1>
A specific example of the distribution board 10 according to the first embodiment will be described with reference to FIG.

まず、図２（ａ）は、従来の分電盤１０’の一例のブロック図である。図２（ａ）に示す分電盤１０’はアンペアブレーカ１７を含み、該アンペアブレーカ１７はスマートメータ１００と主幹ブレーカ１２との間に配置されている。ここでのアンペアブレーカは、電力会社と電力ユーザとの間の契約により取り決められた「契約アンペア値」を超える電流が流れた時に電気の供給を自動で止める装置である。 First, FIG. 2A is a block diagram of an example of a conventional distribution board 10 '. A distribution board 10 ′ shown in FIG. 2A includes an ampere breaker 17, and the ampere breaker 17 is disposed between the smart meter 100 and the main breaker 12. The ampere breaker here is a device that automatically stops the supply of electricity when a current exceeding the “contract amperage value” determined by a contract between the power company and the power user flows.

一方、図２（ｂ）は、実施の形態１に係る分電盤１０の一例のブロック図である。図２（ｂ）に示すＰＬＣ通信アダプタ２０は、図１に示すＰＬＣ通信アダプタ２０と同じく、分電盤１０の内部において、主幹ブレーカ１２とスマートメータ１００とに接続して主幹ブレーカ１２とスマートメータ１００との間に配置される。更に、図２（ｂ）に示す分電盤１０では、図２（ａ）に示す分電盤１０’においてアンペアブレーカ１７が取り付けられていた部位（以下、「アンペアブレーカ取り付け部」と言う。）１９に、ＰＬＣ通信アダプタ２０が配置される。   On the other hand, FIG. 2B is a block diagram of an example of the distribution board 10 according to the first embodiment. The PLC communication adapter 20 shown in FIG. 2B is connected to the main breaker 12 and the smart meter 100 inside the distribution board 10 in the same manner as the PLC communication adapter 20 shown in FIG. 100. Furthermore, in the distribution board 10 shown in FIG. 2 (b), the part where the ampere breaker 17 is attached in the distribution board 10 ′ shown in FIG. 2 (a) (hereinafter referred to as “ampere breaker attachment part”). 19, a PLC communication adapter 20 is arranged.

図３は、本実施の形態に係る分電盤１０の内部構造を示す斜視図である。図２（ｂ）に示す分電盤１０と同じく、分電盤１０内部には主幹ブレーカ１２及び分岐ブレーカ１４が配置されている。主幹ブレーカ１２の（紙面に向かって）左にはアンペアブレーカ取り付け部１９が存在する。よって、図３に示す分電盤１０ではこのアンペアブレーカ取り付け部１９にＰＬＣ通信アダプタ２０が配置される。   FIG. 3 is a perspective view showing the internal structure of distribution board 10 according to the present embodiment. Similar to the distribution board 10 shown in FIG. 2B, a main breaker 12 and a branch breaker 14 are arranged inside the distribution board 10. An ampere breaker mounting portion 19 exists on the left side of the main breaker 12 (toward the paper surface). Therefore, in the distribution board 10 shown in FIG. 3, the PLC communication adapter 20 is arranged at the ampere breaker mounting portion 19.

なお、スマートメータは通常、前述のアンペアブレーカの機能を内蔵しているため、スマートメータと併用される分電盤においてはアンペアブレーカが設けられなくても問題とはならない。図２（ｂ）に示す分電盤１０においては、ＰＬＣ通信アダプタ２０を既存のアンペアブレーカに置き換えて設置することにより、ＢルートにおけるＰＬＣ通信を容易に実現できる。   In addition, since the smart meter normally incorporates the function of the above-mentioned amper breaker, there is no problem even if the amper breaker is not provided in the distribution board used together with the smart meter. In the distribution board 10 shown in FIG. 2B, PLC communication in the B route can be easily realized by replacing the PLC communication adapter 20 with an existing ampere breaker.

また、図２（ｂ）に示す実施の形態１に係る分電盤１０及びＰＬＣ通信アダプタ２０の具体例において、ＰＬＣ通信アダプタ２０の筐体が、図２（ｂ）に示すアンペアブレーカの筐体と同形状であるのが好ましい。なぜならば、ＰＬＣ通信アダプタ２０の筐体とアンペアブレーカの筐体とが同形状であるならば、分電盤１０内にＰＬＣ通信アダプタ２０を設置する際の施工ミスが防止されるからである。   In the specific example of the distribution board 10 and the PLC communication adapter 20 according to the first embodiment shown in FIG. 2B, the case of the PLC communication adapter 20 is the case of the amper breaker shown in FIG. It is preferable that it is the same shape. This is because, if the casing of the PLC communication adapter 20 and the casing of the ampere breaker have the same shape, construction errors when installing the PLC communication adapter 20 in the distribution board 10 are prevented.

＜１−４−２．具体例２＞
図１、及び図２（ｂ）に示す分電盤１０では、スマートメータ１００と主幹ブレーカ１２との間に配置されるＰＬＣ通信アダプタ２０の筐体は、主幹ブレーカ１２の筐体とは別のものである。これに対して、本実施の形態のＰＬＣ通信アダプタは、主幹ブレーカ１２の筐体内に含まれてもよい。即ち、ＰＬＣ通信アダプタを構成する回路が、主幹ブレーカ１２の筐体の内部に含まれて配置されてもよい。 <1-4-2. Specific Example 2>
In the distribution board 10 shown in FIG. 1 and FIG. 2B, the casing of the PLC communication adapter 20 arranged between the smart meter 100 and the main breaker 12 is different from the main breaker 12. Is. On the other hand, the PLC communication adapter according to the present embodiment may be included in the casing of the main breaker 12. That is, the circuit which comprises a PLC communication adapter may be contained and arrange | positioned inside the housing | casing of the master breaker 12. FIG.

この場合、言い換えるとＰＬＣ通信アダプタは、主幹ブレーカと同じ形状であるブレーカ機能付きのＰＬＣ通信アダプタであることになる。この具体例におけるＰＬＣ通信アダプタは、既存の主幹ブレーカの機能を損なうこと無く主幹ブレーカと置き換え可能なものであり、言うまでも無くＢルートにおけるＰＬＣ通信を実現する。よって、分電盤全体の容量をコンパクトにすることができる。   In this case, in other words, the PLC communication adapter is a PLC communication adapter with a breaker function that has the same shape as the main breaker. The PLC communication adapter in this specific example can be replaced with the main breaker without impairing the function of the existing main breaker. Needless to say, the PLC communication on the B route is realized. Therefore, the capacity of the entire distribution board can be made compact.

〔実施の形態２〕
図４及び図５を用いて、実施の形態２に係る分電盤を説明する。 [Embodiment 2]
The distribution board according to the second embodiment will be described with reference to FIGS. 4 and 5.

＜２−１．分電盤及びＰＬＣ通信アダプタの構成＞
実施の形態２に係る分電盤１０は、図１に示す実施の形態１に係る分電盤１０と略同様の構成を有する。以下で説明するように、実施の形態２に係る分電盤１０は、実施の形態１のものとは、ＰＬＣ通信アダプタが分岐ブレーカ設置スペースに設置される点で異なる。 <2-1. Configuration of distribution board and PLC communication adapter>
Distribution board 10 according to the second embodiment has substantially the same configuration as distribution board 10 according to the first embodiment shown in FIG. As will be described below, distribution board 10 according to Embodiment 2 differs from that of Embodiment 1 in that the PLC communication adapter is installed in the branch breaker installation space.

分電盤１０において、分岐ブレーカ１４が配置されない分岐ブレーカ設置スペースには通常、スペーサ１５が嵌め込まれる。図３に示す分電盤１０では、複数の分岐ブレーカ１４の（紙面に向かって）右に複数のスペーサ１５が嵌め込まれている。本実施の形態のＰＬＣ通信アダプタ１５ａは、これらスペーサ１５の各々と同一形状を有しており、分岐ブレーカ１４若しくはスペーサ１５に換えて分電盤１０上に配置される。   In the distribution board 10, a spacer 15 is usually fitted in a branch breaker installation space where the branch breaker 14 is not disposed. In the distribution board 10 shown in FIG. 3, a plurality of spacers 15 are fitted to the right of the plurality of branch breakers 14 (toward the paper surface). The PLC communication adapter 15 a according to the present embodiment has the same shape as each of the spacers 15 and is disposed on the distribution board 10 in place of the branch breaker 14 or the spacer 15.

図４（ａ）は、本発明の実施の形態２に係る分電盤１０の全体ブロック図である。本実施の形態のＰＬＣ通信アダプタ１５ａは、分岐ブレーカ１４若しくはスペーサ１５に換えて、分岐ブレーカ設置スペースに設置される。図５（ａ）は、本実施の形態に係るＰＬＣ通信アダプタ１５ａの斜視図である。   FIG. 4 (a) is an overall block diagram of distribution board 10 according to Embodiment 2 of the present invention. The PLC communication adapter 15a of the present embodiment is installed in a branch breaker installation space instead of the branch breaker 14 or the spacer 15. FIG. 5A is a perspective view of the PLC communication adapter 15a according to the present embodiment.

図４（ａ）に示すように、本実施の形態に係るＰＬＣ通信アダプタ１５ａは、図１及び図２（ｂ）に示す実施の形態１に係るＰＬＣ通信アダプタ２０と同様の回路構成を有する。なお、本実施の形態のＰＬＣ通信アダプタ１５ａは、主幹ブレーカ１２から導出された導電バー１６に接続される第１の端子部１１と、外部の負荷回路に導出される電力線に接続される第２の端子部１３を有する。第１の端子部１１と第２の端子部１３とは導電経路２１により接続される。   As shown in FIG. 4 (a), the PLC communication adapter 15a according to the present embodiment has the same circuit configuration as the PLC communication adapter 20 according to the first embodiment shown in FIGS. 1 and 2 (b). The PLC communication adapter 15a of the present embodiment includes a first terminal portion 11 connected to the conductive bar 16 led out from the main breaker 12 and a second terminal connected to a power line led out to an external load circuit. Terminal portion 13. The first terminal portion 11 and the second terminal portion 13 are connected by a conductive path 21.

＜２−２．分電盤及びＰＬＣ通信アダプタの動作＞
主幹ブレーカ１２から導出される導電バー１６と外部の負荷回路との間に配置されるＰＬＣ通信アダプタ１５ａは、電力変換部により導電経路２１上の商用電力を電力線搬送（ＰＬＣ）に必要な電力に変換する。更に、ＰＬＣ通信アダプタ１５ａは、通信部により、電力線搬送信号をモデム回路２４によりデジタル信号に変換し、更に外部からのデジタル信号を、モデム回路２４を介して電力線搬送信号に重畳する。このようにして、ＰＬＣ通信アダプタ１５ａはスマートメータ１００と分電盤１０との間のＰＬＣ通信を実現する。 <2-2. Operation of distribution board and PLC communication adapter>
The PLC communication adapter 15a arranged between the conductive bar 16 led out from the main breaker 12 and an external load circuit converts the commercial power on the conductive path 21 into power necessary for power line carrier (PLC) by the power converter. Convert. Further, in the PLC communication adapter 15 a, the communication unit converts the power line carrier signal into a digital signal by the modem circuit 24, and further superimposes the external digital signal on the power line carrier signal via the modem circuit 24. In this way, the PLC communication adapter 15a realizes PLC communication between the smart meter 100 and the distribution board 10.

この際、ＰＬＣ通信アダプタ１５ａには、ＰＬＣ通信アダプタとスマートメータとの距離が長くなることによる信号減衰が発生しない。更に、壁コンセントに電源プラグを介して差し込まれる他の家電機器が発生するノイズ源が、直近に配置されることがないため、ＰＬＣ通信の邪魔になるようなことがない。   At this time, the PLC communication adapter 15a does not cause signal attenuation due to the increase in the distance between the PLC communication adapter and the smart meter. Furthermore, since noise sources generated by other household electrical appliances that are inserted into the wall outlet via the power plug are not arranged in the immediate vicinity, there is no possibility of disturbing PLC communication.

＜２−３．まとめ＞
以上のように、実施の形態２に係る分電盤は、外部の通信機能付き電力量計と通信する通信装置を含む分電盤である。通信装置は、商用系統側に接続される第１の端子部と、負荷側に接続される第２の端子部と、第１の端子部及び第２の端子部間を接続する導電経路とを備える。また、通信装置は、モデム回路を含み導電経路と絶縁される一方で電力線搬送信号をモデム回路によりデジタル信号に変換し更に外部からのデジタル信号を、モデム回路を介して電力線搬送信号に重畳する通信部とを備える。更に、通信装置において、第１の端子部は主幹ブレーカから導出された導電バーに接続され、第２の端子部は外部の負荷回路に導出する第２の電力線に接続され、通信装置が分電盤内の分岐ブレーカ設置スペースに装着される。 <2-3. Summary>
As described above, the distribution board according to Embodiment 2 is a distribution board including a communication device that communicates with an external energy meter with a communication function. The communication device includes a first terminal portion connected to the commercial system side, a second terminal portion connected to the load side, and a conductive path connecting between the first terminal portion and the second terminal portion. Prepare. The communication device includes a modem circuit and is insulated from the conductive path, while converting the power line carrier signal to a digital signal by the modem circuit and further superimposing the external digital signal on the power line carrier signal via the modem circuit. A part. Further, in the communication device, the first terminal portion is connected to a conductive bar led out from the main breaker, the second terminal portion is connected to a second power line led out to an external load circuit, and the communication device distributes power. Installed in the branch breaker installation space in the panel.

このように、実施の形態２に係る分電盤におけるＰＬＣ通信アダプタは、分電盤内の分岐ブレーカ設置スペースにおける既存の電気系統に挿入されてＢルートのためのＰＬＣ通信を実現する。よって本実施の形態では、ＰＬＣ通信アダプタのために新たな電気系統を設置する必要や、既存の電位系統を変更する必要が無い。また、本実施の形態のＰＬＣ通信アダプタは分岐ブレーカと同じ形状であるので、ＰＬＣ通信設定のための施工が簡単なものとなる。更に、ＰＬＣ通信のための良好な通信条件を設定することができる。 Thus, the PLC communication adapter in the distribution board according to Embodiment 2 is inserted into the existing electrical system in the branch breaker installation space in the distribution board to realize PLC communication for the B route. Therefore, in this embodiment, there is no need to install a new electric system for the PLC communication adapter or to change an existing potential system. Moreover, since the PLC communication adapter of this Embodiment is the same shape as a branch breaker, the construction for PLC communication setting becomes easy. Furthermore, favorable communication conditions for PLC communication can be set.

＜２−４．実施の形態２の別例＞
図４（ｂ）及び図５（ｂ）を用いて、実施の形態２に係る分電盤１０及び分岐ブレーカ１４ａの別の具体例を説明する。図４（ａ）に示す分電盤１０では、主幹ブレーカ１２から導出される導電バー１６と外部の負荷回路との間に配置されるＰＬＣ通信アダプタ１５ａの筐体は、分岐ブレーカ１４の筐体とは別のものである。これに対して、図４（ｂ）に示す本例におけるＰＬＣ通信アダプタは、分岐ブレーカの筐体内に含まれる。即ち、図４（ｂ）に示すＰＬＣ通信アダプタを構成する回路が、リレー回路４０と共に、分岐ブレーカ１４ａの筐体の内部に含まれて配置される。図５（ｂ）は、本実施の形態に係る分岐ブレーカ１４ａの斜視図である。 <2-4. Another example of the second embodiment>
Another specific example of the distribution board 10 and the branch breaker 14a according to the second embodiment will be described with reference to FIGS. 4B and 5B. In the distribution board 10 shown in FIG. 4A, the casing of the PLC communication adapter 15a disposed between the conductive bar 16 led out from the main breaker 12 and an external load circuit is the casing of the branch breaker 14. Is different. On the other hand, the PLC communication adapter in this example shown in FIG. 4B is included in the case of the branch breaker. That is, the circuit which comprises the PLC communication adapter shown to FIG. FIG. 5B is a perspective view of the branch breaker 14a according to the present embodiment.

本例の場合、言い換えるとＰＬＣ通信アダプタは、分岐ブレーカと同じ形状であるブレーカ機能付きのＰＬＣ通信アダプタであることになる。図４（ｂ）に示す例におけるＰＬＣ通信アダプタは、既存の分岐ブレーカの機能を損なうこと無く分岐ブレーカと置き換え可能なものであり、言うまでも無くＢルートにおけるＰＬＣ通信を実現する。よって、分電盤全体の容量をコンパクトにすることができる。   In this example, in other words, the PLC communication adapter is a PLC communication adapter with a breaker function having the same shape as the branch breaker. The PLC communication adapter in the example shown in FIG. 4B can be replaced with a branch breaker without impairing the function of the existing branch breaker. Needless to say, the PLC communication in the B route is realized. Therefore, the capacity of the entire distribution board can be made compact.

１０、１０’・・・分電盤、１２・・・主幹ブレーカ、１４、１４ａ・・・分岐ブレーカ、１５・・・スペーサ、１５ａ、２０・・・ＰＬＣ通信アダプタ、１６・・・導電バー、１９・・・アンペアブレーカ取り付け部、２２・・・インダクタ、２４・・・モデム回路、２６・・・ＣＰＵ、２８・・・変圧回路、３０・・・ＡＣ／ＤＣコンバータ、４０・・・リレー回路、１００・・・通信機能付き電力量計（スマートメータ）。 10, 10 '... distribution board, 12 ... main breaker, 14, 14a ... branch breaker, 15 ... spacer, 15a, 20 ... PLC communication adapter, 16 ... conductive bar, DESCRIPTION OF SYMBOLS 19 ... Ampere breaker attachment part, 22 ... Inductor, 24 ... Modem circuit, 26 ... CPU, 28 ... Transformer circuit, 30 ... AC / DC converter, 40 ... Relay circuit , 100: An electricity meter with a communication function (smart meter).

Claims (9)

外部の通信機能付き電力量計と通信する通信装置を含む分電盤であって、
前記通信装置は、
商用系統側に接続される第１の端子部と、
負荷側に接続される第２の端子部と、
前記第１の端子部及び前記第２の端子部間を接続する導電経路と、
モデム回路を含み、前記導電経路と絶縁される一方で、電力線搬送信号をモデム回路によりデジタル信号に変換し、更に外部からのデジタル信号を、モデム回路を介して電力線搬送信号に重畳する通信部と、
を備える
分電盤。 A distribution board including a communication device that communicates with an external energy meter with a communication function,
The communication device
A first terminal connected to the commercial system side;
A second terminal connected to the load side;
A conductive path connecting the first terminal portion and the second terminal portion;
A communication unit that includes a modem circuit and is isolated from the conductive path, converts a power line carrier signal into a digital signal by the modem circuit, and further superimposes an external digital signal on the power line carrier signal via the modem circuit; ,
Distribution board equipped with. 前記第１の端子部は、外部の通信機能付き電力量計に接続され、
前記第２の端子部は、主幹ブレーカに導出する第１の電力線に接続され、
前記通信装置が前記分電盤内のアンペアブレーカ取り付け部に装着される
ことを特徴とする請求項１に記載の分電盤。 The first terminal portion is connected to an external energy meter with a communication function,
The second terminal portion is connected to a first power line leading to the main breaker,
The distribution board according to claim 1, wherein the communication device is attached to an ampere breaker mounting portion in the distribution board. 前記通信装置が前記主幹ブレーカの筐体内に配置されている
ことを特徴とする請求項１に記載の分電盤。 The distribution board according to claim 1, wherein the communication device is disposed in a casing of the main breaker. 前記第１の端子部は、主幹ブレーカから導出された導電バーに接続され、
前記第２の端子部は、外部の負荷回路に導出する第２の電力線に接続され、
前記通信装置が前記分電盤内の分岐ブレーカ設置スペースに装着される
ことを特徴とする請求項１に記載の分電盤。 The first terminal portion is connected to a conductive bar derived from the main breaker,
The second terminal portion is connected to a second power line leading to an external load circuit,
The distribution board according to claim 1, wherein the communication device is mounted in a branch breaker installation space in the distribution board. 外部の通信機能付き電力量計と通信する通信装置を含む分岐ブレーカであって、
前記通信装置は、
主幹ブレーカから導出された導電バーに接続される第１の端子部と、
外部の負荷回路に導出する第２の電力線に接続される第２の端子部と、
前記第１の端子部及び前記第２の端子部間を接続する導電経路と、
モデム回路を含み、前記導電経路と絶縁される一方で、電力線搬送信号をモデム回路によりデジタル信号に変換し、更に外部からのデジタル信号を、モデム回路を介して電力線搬送信号に重畳する通信部と
を備える
分岐ブレーカ。 A branch breaker including a communication device communicating with an external energy meter with a communication function,
The communication device
A first terminal connected to a conductive bar derived from the main breaker;
A second terminal connected to a second power line leading to an external load circuit;
A conductive path connecting the first terminal portion and the second terminal portion;
A communication unit that includes a modem circuit and is isolated from the conductive path, converts a power line carrier signal into a digital signal by the modem circuit, and further superimposes an external digital signal on the power line carrier signal via the modem circuit; Branch breaker with. 外部の通信機能付き電力量計と通信する通信装置であって、
商用系統側に接続される第１の端子部と、
負荷側に接続される第２の端子部と、
前記第１の端子部及び前記第２の端子部間を接続する導電経路と、
モデム回路を含み、前記導電経路と絶縁される一方で、電力線搬送信号をモデム回路によりデジタル信号に変換し、更に外部からのデジタル信号を、モデム回路を介して電力線搬送信号に重畳する通信部と、
を備える通信装置。 A communication device for communicating with an external energy meter with a communication function,
A first terminal connected to the commercial system side;
A second terminal connected to the load side;
A conductive path connecting the first terminal portion and the second terminal portion;
A communication unit that includes a modem circuit and is isolated from the conductive path, converts a power line carrier signal into a digital signal by the modem circuit, and further superimposes an external digital signal on the power line carrier signal via the modem circuit; ,
A communication device comprising: 前記第１の端子部は、外部の通信機能付き電力量計に接続され、
前記第２の端子部は、主幹ブレーカに導出する第１の電力線に接続され、
所定の分電盤内のアンペアブレーカ取り付け部に装着される
ことを特徴とする請求項６に記載の通信装置。 The first terminal portion is connected to an external energy meter with a communication function,
The second terminal portion is connected to a first power line leading to the main breaker,
The communication device according to claim 6, wherein the communication device is attached to an ampere breaker mounting portion in a predetermined distribution board. 所定の分電盤の主幹ブレーカの筐体内に配置されている
ことを特徴とする請求項６に記載の通信装置。 The communication device according to claim 6, wherein the communication device is arranged in a casing of a main breaker of a predetermined distribution board. 前記第１の端子部は、所定の分電盤の主幹ブレーカから導出された導電バーに接続され、
前記第２の端子部は、外部の負荷回路に導出される第２の電力線に接続され、
所定の分電盤内の分岐ブレーカ設置スペースに装着される
ことを特徴とする請求項６に記載の通信装置。 The first terminal portion is connected to a conductive bar derived from a main breaker of a predetermined distribution board,
The second terminal portion is connected to a second power line led to an external load circuit,
The communication apparatus according to claim 6, wherein the communication apparatus is mounted in a branch breaker installation space in a predetermined distribution board.
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