JP6968629B2 - Distribution board - Google Patents

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JP6968629B2
JP6968629B2 JP2017170571A JP2017170571A JP6968629B2 JP 6968629 B2 JP6968629 B2 JP 6968629B2 JP 2017170571 A JP2017170571 A JP 2017170571A JP 2017170571 A JP2017170571 A JP 2017170571A JP 6968629 B2 JP6968629 B2 JP 6968629B2
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孝資 平井
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河村電器産業株式会社
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本発明は分電盤に関し、詳しくはスマートメータから電力量データを入手する機能を備えた分電盤に関する。 The present invention relates to a distribution board, and more particularly to a distribution board having a function of obtaining electric energy data from a smart meter.

近年、住戸内で使用する電力を居住者が管理できるHEMSが注目されている。HEMSを構築することで無駄な電力使用を無くして使用電力を削減でき、特に電力量計がスマートメータである場合にスマートメータから電力量データを入手することで電力料金の削減を効果的に実施できるため、注目されている。
例えば、特許文献1では、分電盤内の例えば主幹ブレーカの一次側にスマートメータとPLC通信(電力線搬送通信)するPLCアダプタを配置して、このPLCアダプタに別途外部に設置されているHEMSコントローラと通信する機能を設け、住戸全体の使用電力の状況に応じて負荷である電気機器の制御を可能としている。
一方で、分岐電流情報を基に消費電力を演算して外部にデータを送信する通信計測ユニットがある(例えば、特許文献2参照)。
In recent years, HEMS, which allows residents to manage the electric power used in a dwelling unit, has been attracting attention. By constructing HEMS, it is possible to eliminate unnecessary power usage and reduce power consumption. Especially when the watt-hour meter is a smart meter, obtaining power data from the smart meter effectively reduces the power charge. Because it can be done, it is attracting attention.
For example, in Patent Document 1, a PLC adapter for PLC communication (power line carrier communication) with a smart meter is arranged, for example, on the primary side of a main circuit breaker in a distribution board, and a HEMS controller separately installed outside the PLC adapter. It is equipped with a function to communicate with the electric device, which is a load, according to the power consumption of the entire dwelling unit.
On the other hand, there is a communication measurement unit that calculates power consumption based on branch current information and transmits data to the outside (see, for example, Patent Document 2).

特開2015−70687号公報Japanese Unexamined Patent Publication No. 2015-70687 特開2014−193104号公報Japanese Unexamined Patent Publication No. 2014-193104

上記特許文献1のPLCアダプタは、スマートメータから送信される電力量データをHEMSコントローラ等に通知する機能を備えているが、個々の分岐電流を把握してはいないため、負荷の使用状況を十分把握することができなかった。
一方で、上記特許文献2の通信計測ユニットは、個々の負荷で消費される電力を計測できるが、電力量計(スマートメータ)が計測する電力の数値とは連動していないため、住戸全体の使用電力の管理には適していなかった。
そのため、PLCアダプタと通信計測ユニットの双方を使用して電力管理すれば、的確な管理が可能となるが、PLCアダプタと通信計測ユニットの双方を分電盤に組み込もうとすると分電盤の大型化は避けられなかった。
The PLC adapter of Patent Document 1 has a function of notifying the HEMS controller and the like of the power amount data transmitted from the smart meter, but does not know the individual branch currents, so that the load usage status is sufficient. I couldn't figure it out.
On the other hand, the communication measurement unit of Patent Document 2 can measure the power consumed by each load, but it is not linked to the value of the power measured by the watt-hour meter (smart meter), so that the entire dwelling unit is used. It was not suitable for power consumption management.
Therefore, if power management is performed using both the PLC adapter and the communication measurement unit, accurate management is possible. However, if both the PLC adapter and the communication measurement unit are to be incorporated into the distribution board, the distribution board will be used. Larger size was inevitable.

そこで、本発明はこのような問題点に鑑み、分岐電路の使用電力データとスマートメータからの電力量データの双方を管理する機器を収容しても大型化を防止できる分電盤を提供することを目的としている。 Therefore, in view of such a problem, the present invention provides a distribution board that can prevent the size of the distribution board even if it accommodates a device that manages both the power consumption data of the branch electric circuit and the electric energy data from the smart meter. It is an object.

上記課題を解決する為に、請求項1の発明は、主幹ブレーカと、当該主幹ブレーカの2次側に設けられた主幹バーに接続された複数の分岐ブレーカと、個々の分岐ブレーカに流れる電流を計測する電流センサユニットと、分岐ブレーカに隣接して主幹バーに接続され、電流センサユニットが計測した分岐電流情報を受けて分岐電路毎の使用電力を演算して出力する電力情報出力部を備えた1つの電力情報送信ユニットとを有する分電盤であって、電力情報送信ユニットは、接続された主幹バーを介して主幹ブレーカの一次側に設置されているスマートメータとPLC通信を実施するPLC通信部を備え、PLC通信により入手した電力量データと共に、電流センサユニットから入手して演算した分岐電路の使用電力データを電力情報出力部から出力することを特徴とする。
この構成によれば、1つの機器を分電盤に設けるだけで分岐電路の使用電力データに加えて住戸内で消費される全体の電力量データを居住者等が入手することができるため、的確な電力管理が可能となる。そして、電力情報送信ユニットは分岐ブレーカと同様に主幹バーに接続されるため、別途設置スペースを設ける必要が無く省スペースで組み付けでき分電盤の大型化を避けることができる。更に、スマートメータに近い分電盤内の主幹バーに電力情報送信ユニットが配置されるため、スマートメータと信頼性の高いPLC通信を実施できる。
In order to solve the above problems, the invention of claim 1 applies a main breaker, a plurality of branch breakers connected to a main bar provided on the secondary side of the main breaker, and a current flowing through each branch breaker. It is equipped with a current sensor unit for measurement and a power information output unit that is connected to the main bar adjacent to the branch breaker and receives the branch current information measured by the current sensor unit, calculates the power used for each branch circuit, and outputs it. It is a distribution board having one power information transmission unit, and the power information transmission unit performs PLC communication with a smart meter installed on the primary side of the main circuit breaker via a connected main circuit breaker. It is characterized in that the power information output unit outputs the power usage data of the branch circuit obtained and calculated from the current sensor unit together with the power amount data obtained by PLC communication.
According to this configuration, the resident or the like can obtain accurate power consumption data in the dwelling unit in addition to the power consumption data of the branch electric circuit by simply installing one device in the distribution board. Power management is possible. Since the power information transmission unit is connected to the main bar in the same way as the branch breaker, it can be assembled in a small space without the need for a separate installation space, and the size of the distribution board can be avoided. Further, since the power information transmission unit is arranged in the main bar in the distribution board near the smart meter, highly reliable PLC communication with the smart meter can be performed.

請求項2の発明は、請求項1に記載の構成において、電力情報出力部は、LAN接続通信部、Wi−Fi通信部、IEEE802.15.1規格の通信を実施する通信部のうち少なくとも2種類の通信部を備えて、情報出力の信号形態を選択できることを特徴とする。
この構成によれば、出力信号の形態を選択できるため、複数種類のHEMS機器に対応でき、電力情報を入手するために新たな機器を設け無くて済む。
According to the invention of claim 2, in the configuration according to claim 1, the power information output unit is at least two types of a LAN connection communication unit, a Wi-Fi communication unit, and a communication unit that carries out communication according to the IEEE 802.15.1 standard. It is characterized by having a communication unit and being able to select a signal form for information output.
According to this configuration, since the form of the output signal can be selected, it is possible to support a plurality of types of HEMS devices, and it is not necessary to provide a new device for obtaining power information.

本発明によれば、1つの機器を分電盤に設けるだけで分岐電路の使用電力データに加えて住戸内で消費される詳細な電力データを居住者等が入手することができるため、的確な電力管理が可能となる。そして、電力情報送信ユニットは分岐ブレーカと同様に主幹バーに接続されるため、別途設置スペースを設ける必要が無く省スペースで組み付けでき分電盤の大型化を避けることができる。更に、スマートメータに近い分電盤内の主幹バーに電力情報送信ユニットが配置されるため、スマートメータと信頼性の高いPLC通信を実施できる。 According to the present invention, it is possible for a resident or the like to obtain detailed power data consumed in a dwelling unit in addition to the power usage data of a branch electric circuit by simply installing one device on a distribution board, so that it is accurate. Power management becomes possible. Since the power information transmission unit is connected to the main bar in the same way as the branch breaker, it can be assembled in a small space without the need for a separate installation space, and the size of the distribution board can be avoided. Further, since the power information transmission unit is arranged in the main bar in the distribution board near the smart meter, highly reliable PLC communication with the smart meter can be performed.

本発明に係る分電盤の一例を模式的に示す構成図である。It is a block diagram which shows typically an example of the distribution board which concerns on this invention. 電力情報送信ユニットのブロック図である。It is a block diagram of a power information transmission unit.

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模式的に示した構成図であり、分電盤10には、主幹ブレーカ1、分岐ブレーカ2、電力データを外部に出力する電力情報送信ユニット3が組み付けられている。
主幹ブレーカ1の一次側には、電力量計であるスマートメータ4を介して商用電源からの引き込み線Lが接続されている。また、2次側は接続導体5を介して分電盤内において左右に亘り配設された主幹バー6が接続され、この主幹バー6を挟む様に分岐ブレーカ2が隣接して上下にそれぞれ列設されている。
Hereinafter, embodiments that embody the present invention will be described in detail with reference to the drawings. FIG. 1 is a configuration diagram schematically showing an example of a distribution board according to the present invention. The distribution board 10 includes a main breaker 1, a branch breaker 2, and a power information transmission unit 3 that outputs power data to the outside. Is assembled.
A lead-in line L from a commercial power source is connected to the primary side of the main breaker 1 via a smart meter 4 which is a watt-hour meter. Further, on the secondary side, a main bar 6 arranged on the left and right in the distribution board is connected via a connecting conductor 5, and branch breakers 2 are adjacent to each other so as to sandwich the main bar 6 and are arranged vertically. It is set up.

そして、21は個々の分岐ブレーカ2を流れる分岐電流を計測するための電流センサが組み付けられた電流センサ基板、22は計測した分岐電流情報を電力情報送信ユニットに送信するためのセンサ接続基板であり、双方で電流センサユニット20を構成し、これらは主幹バー6に重ねるように設置されている。 21 is a current sensor board to which a current sensor for measuring the branch current flowing through each branch breaker 2 is assembled, and 22 is a sensor connection board for transmitting the measured branch current information to the power information transmission unit. , A current sensor unit 20 is configured on both sides, and these are installed so as to be overlapped with the main bar 6.

電力情報送信ユニット3は、分岐ブレーカ2と同様に主幹バー6に接続する主幹バー接続部31(図2に示す)を有し、分岐ブレーカ2に隣接する所定の位置に組み付けられると主幹バー6に接続されて電源が供給される。
図2は電力情報送信ユニット3のブロック図を示している。図2に示すように電力情報送信ユニット3は、主幹バー接続部31に加えて、電流センサユニット20と通信する内部通信IF32、主幹バー6を介してスマートメータ4とPLC通信を実施するPLC通信IF33、LAN端子を有してLAN通信を実施する第1外部通信IF34、アンテナ35aを有してWi−Fi通信する第2外部通信IF35、アンテナ36aを有してBluetooth(登録商標)通信を実施する第3外部通信IF36、通信方式を選択操作する操作部37、電力情報送信ユニット3を制御する電力情報送信ユニットCPU38、そして主幹バー6に接続された電源部39等を備えている。第1〜第3外部通信IF34〜36が電力情報出力部を構成している。
The power information transmission unit 3 has a main bar connecting portion 31 (shown in FIG. 2) connected to the main bar 6 like the branch breaker 2, and when assembled at a predetermined position adjacent to the branch breaker 2, the main bar 6 is attached. Power is supplied by being connected to.
FIG. 2 shows a block diagram of the power information transmission unit 3. As shown in FIG. 2, in addition to the main bar connection unit 31, the power information transmission unit 3 performs PLC communication with the smart meter 4 via the internal communication IF 32 that communicates with the current sensor unit 20 and the main bar 6. IF33, a first external communication IF34 having a LAN terminal to carry out LAN communication, a second external communication IF35 having an antenna 35a for Wi-Fi communication, and a Bluetooth (registered trademark) communication having an antenna 36a. It includes a third external communication IF 36, an operation unit 37 for selecting and operating a communication method, a power information transmission unit CPU 38 for controlling the power information transmission unit 3, a power supply unit 39 connected to the main bar 6, and the like. The first to third external communication IFs 34 to 36 constitute a power information output unit.

このように構成された分電盤10において、電力情報送信ユニット3は以下の様に動作する。先ず、信号を出力するインターフェースが選択される。この選択は操作部37が操作されて選択され、LAN、Wi−Fi、Bluetooth(登録商標)の少なくとも何れかが選択される。この選択操作は複数の通信形態を選択しても良い。
例えば、図示しないHEMSコントローラにLAN接続され、また例えば居住者が携行するスマートフォン等の機器とBluetooth(登録商標)通信を可能とする場合、第1外部通信IF34と第2外部通信IF35とが選択される。
尚、HEMSとはHome Energy Management Systemの略で、HEMSコントローラは、どこで、どのくらいの電力を使っているか表示する機能を有し、場合によっては電力の使用状況に応じて家電機器を制御する機能を備えた機器のことである。
In the distribution board 10 configured in this way, the power information transmission unit 3 operates as follows. First, the interface that outputs the signal is selected. This selection is selected by operating the operation unit 37, and at least one of LAN, Wi-Fi, and Bluetooth (registered trademark) is selected. This selection operation may select a plurality of communication modes.
For example, when a LAN is connected to a HEMS controller (not shown) and Bluetooth (registered trademark) communication is possible with a device such as a smartphone carried by a resident, the first external communication IF34 and the second external communication IF35 are selected. NS.
HEMS is an abbreviation for Home Energy Management System, and the HEMS controller has a function to display where and how much power is used, and in some cases, it has a function to control home appliances according to the power usage status. It is a device equipped.

電力情報送信ユニット3は、引き込み線L、主幹バー6を介してスマートメータ4とPLCによるBルート通信を実施し、スマートメータ4から消費電力データを入手する。
また、電流センサユニット20から各分岐電路の電流情報を内部通信IF32を介して入手して、電源ラインを構成する主幹バー6から別途入手した電圧情報を基に分岐電路毎の使用電力を演算する。
こうして入手した消費電力データ、及び演算した各分岐電路の使用電力データは第1外部通信IF34を介してLAN接続されたHEMSコントローラに出力され、第2外部通信IF35を介してWi−Fi信号によりスマートフォン等に出力される。
The power information transmission unit 3 carries out B route communication by the smart meter 4 and the PLC via the drop line L and the main bar 6, and obtains the power consumption data from the smart meter 4.
Further, the current information of each branch electric circuit is obtained from the current sensor unit 20 via the internal communication IF 32, and the power consumption of each branch electric circuit is calculated based on the voltage information separately obtained from the main bar 6 constituting the power supply line. ..
The power consumption data obtained in this way and the calculated power consumption data of each branch electric circuit are output to the HEMS controller connected to the LAN via the first external communication IF34, and are output to the smartphone via the second external communication IF35 by the Wi-Fi signal. Etc. are output.

この構成によれば、1つの機器を分電盤10に設けるだけで分岐電路の使用電力データに加えて住戸内で消費される全体の電力量データを居住者等が入手することができるため、的確な電力管理が可能となる。そして、電力情報送信ユニット3は分岐ブレーカ2と同様に主幹バー6に接続されるため、別途設置スペースを設ける必要が無く省スペースで組み付けでき分電盤10の大型化を避けることができる。更に、スマートメータ4に近い分電盤10内の主幹バー6に電力情報送信ユニット3が配置されるため、スマートメータ4と信頼性の高いPLC通信を実施できる。
また、LAN、Wi−Fi、Bluetooth(登録商標)から出力信号の形態を選択できるため、複数種類のHEMS機器に対応でき、電力情報を入手するために新たな機器を設け無くて済む。
According to this configuration, the resident or the like can obtain the total power consumption data in the dwelling unit in addition to the power consumption data of the branch electric circuit only by providing one device on the distribution board 10. Accurate power management is possible. Since the power information transmission unit 3 is connected to the main bar 6 like the branch breaker 2, it can be assembled in a small space without the need to provide a separate installation space, and the size of the distribution board 10 can be avoided. Further, since the power information transmission unit 3 is arranged in the main bar 6 in the distribution board 10 close to the smart meter 4, highly reliable PLC communication with the smart meter 4 can be performed.
Further, since the output signal form can be selected from LAN, Wi-Fi, and Bluetooth (registered trademark), it is possible to support a plurality of types of HEMS devices, and it is not necessary to install a new device for obtaining power information.

尚、上記実施形態では、信号出力の形態が、LAN、Wi−Fi、Bluetooth(登録商標)から選択しているが、これにWi−SUN(登録商標)を加えても良い。 In the above embodiment, the signal output mode is selected from LAN, Wi-Fi, and Bluetooth (registered trademark), but Wi-SUN (registered trademark) may be added thereto.

1・・主幹ブレーカ、2・・分岐ブレーカ、3・・電力情報送信ユニット、4・・スマートメータ、6・・主幹バー、20・・電流センサユニット、31・・主幹バー接続部、33・・PLC通信IF(PLC通信部)、34・・第1外部通信IF(LAN接続通信部)、35・・第2外部通信IF(Wi−Fi通信部)、36・・第3外部通信IF(Bluetooth(登録商標)通信部)。 1 ... Main breaker, 2 ... Branch breaker, 3 ... Power information transmission unit, 4 ... Smart meter, 6 ... Main bar, 20 ... Current sensor unit, 31 ... Main bar connection, 33 ... PLC communication IF (PLC communication unit), 34 ... 1st external communication IF (LAN connection communication unit), 35 ... 2nd external communication IF (Wi-Fi communication unit), 36 ... 3rd external communication IF (Bluetooth) (Registered Trademark) Communication Department).

Claims (2)

主幹ブレーカと、当該主幹ブレーカの2次側に設けられた主幹バーに接続された複数の分岐ブレーカと、個々の前記分岐ブレーカに流れる電流を計測する電流センサユニットと、前記分岐ブレーカに隣接して前記主幹バーに接続され、前記電流センサユニットが計測した分岐電流情報を受けて分岐電路毎の使用電力を演算して出力する電力情報出力部を備えた1つの電力情報送信ユニットとを有する分電盤であって、
前記電力情報送信ユニットは、接続された前記主幹バーを介して前記主幹ブレーカの一次側に設置されているスマートメータとPLC通信を実施するPLC通信部を備え、
PLC通信により入手した電力量データと共に、前記電流センサユニットから入手して演算した分岐電路の使用電力データを前記電力情報出力部から出力することを特徴とする分電盤。
Adjacent to the main breaker, a plurality of branch breakers connected to the main bar provided on the secondary side of the main breaker, a current sensor unit for measuring the current flowing through each of the branch breakers, and the branch breaker. Distribution of power having one power information transmission unit connected to the main bar and having a power information output unit that receives branch current information measured by the current sensor unit, calculates and outputs the power used for each branch electric circuit. It ’s a board,
The power information transmission unit includes a PLC communication unit that carries out PLC communication with a smart meter installed on the primary side of the main breaker via the connected main bar.
A distribution board characterized in that, together with the power amount data obtained by PLC communication, the power usage data of the branch electric circuit obtained and calculated from the current sensor unit is output from the power information output unit.
前記電力情報出力部は、LAN接続通信部、Wi−Fi通信部、IEEE802.15.1規格の通信を実施する通信部のうち少なくとも2種類の通信部を備えて、情報出力の信号形態を選択できることを特徴とする請求項1記載の分電盤。 The power information output unit includes at least two types of communication units among a LAN connection communication unit, a Wi-Fi communication unit, and a communication unit that carries out communication according to the IEEE 802.15.1 standard, and the signal form of information output can be selected. The distribution board according to claim 1, which is characterized.
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