JP2014057213A - Plc device and distribution panel - Google Patents

Plc device and distribution panel Download PDF

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JP2014057213A
JP2014057213A JP2012200762A JP2012200762A JP2014057213A JP 2014057213 A JP2014057213 A JP 2014057213A JP 2012200762 A JP2012200762 A JP 2012200762A JP 2012200762 A JP2012200762 A JP 2012200762A JP 2014057213 A JP2014057213 A JP 2014057213A
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plc
power
distribution board
plc device
communication
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JP6074838B2 (en
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Masato Kasaya
正人 傘谷
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Panasonic Corp
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Panasonic Corp
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Priority to PCT/JP2013/005018 priority patent/WO2014041751A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • H04B3/58—Repeater circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5429—Applications for powerline communications
    • H04B2203/5433—Remote metering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5429—Applications for powerline communications
    • H04B2203/5441—Wireless systems or telephone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5479—Systems for power line communications using repeaters

Abstract

PROBLEM TO BE SOLVED: To provide a PLC device which can easily be mounted in a distribution panel even when a power meter having a communication function is adopted after constructing the distribution panel, and a distribution panel.SOLUTION: A PLC device 1 includes a body part 11 for performing power line communication, and a mounting part 12 provided integrally with the body part 11. The body part 11 converts a power line communication signal received from the power meter 6 having a communication function by power line communication into a radio signal to be transmitted to a predetermined device (apparatus management device) by radio communication. The mounting part 12 is a member for mounting the body part 11 in an internal device (for example, a trunk breaker 3) of the distribution panel.

Description

本発明は、通信機能を有する電力メータと電力線通信を行うＰＬＣ装置および分電盤に関する。   The present invention relates to a PLC device and a distribution board that perform power line communication with a power meter having a communication function.

電力線通信（ＰＬＣ：Power Line Communication）を用いた従来のシステムとして、特許文献１には、通信機能を有する電力メータから電力線通信によって電力線通信信号（以下「ＰＬＣ信号」という）を受信する端末を用いたシステムが知られている。   As a conventional system using power line communication (PLC), Patent Document 1 uses a terminal that receives a power line communication signal (hereinafter referred to as a “PLC signal”) by power line communication from a power meter having a communication function. The system that was known is known.

特許文献１に記載された端末は、電力線通信の通信モジュールから構成されており、電力線通信によって電力メータから受信したＰＬＣ信号を、宅内の電気機器を集中制御する情報盤に送信する。端末と情報盤との間には制御線が接続されており、ＰＬＣ信号は制御線を介して端末から情報盤へ送信される。   The terminal described in Patent Document 1 includes a communication module for power line communication, and transmits a PLC signal received from a power meter by power line communication to an information panel that centrally controls electric devices in the house. A control line is connected between the terminal and the information board, and a PLC signal is transmitted from the terminal to the information board via the control line.

特開２０１０−４３８９号公報JP 2010-4389 A

特許文献１に記載された従来のシステムでは、通信機能を有する電力メータが分電盤の施工時において既に採用されているから、電力線通信によって電力メータからＰＬＣ信号を受信する端末（ＰＬＣ装置）の設置スペースが分電盤内において確保されている。   In the conventional system described in Patent Document 1, since a power meter having a communication function has already been adopted at the time of construction of a distribution board, a terminal (PLC device) that receives a PLC signal from the power meter by power line communication. Installation space is secured in the distribution board.

しかしながら、通信機能を有する電力メータが分電盤の施工後に採用された場合、上記端末の設置スペースを考慮して特許文献１に記載されたシステムを新たに施工することは、これまでの設備が無駄になり、かつ、施工コストも高くなるという問題があった。   However, when a power meter having a communication function is adopted after the installation of the distribution board, it is necessary to install the system described in Patent Document 1 in consideration of the installation space of the terminal. There was a problem that it was wasted and the construction cost was high.

一方、これまでの設備に上記端末を追加しようとしても、分電盤によっては、ＰＬＣ装置を設置するためのスペースが十分ではなかった。   On the other hand, even if it is going to add the said terminal to the existing installation, the space for installing a PLC apparatus was not enough depending on the distribution board.

また、特許文献１に記載されたシステムでは、制御線を用いて端末から情報盤へ信号を送信するため、通信機能を有する電力メータが分電盤の施工後に採用された場合、分電盤の施工後に制御線を新たに設ける必要がある。   Moreover, in the system described in Patent Document 1, in order to transmit a signal from the terminal to the information panel using the control line, when a power meter having a communication function is adopted after the distribution panel is installed, It is necessary to provide a new control line after construction.

しかしながら、既に施工を行っている状態において制御線を新たに追加することは容易ではなく、コストも高くなる。   However, it is not easy to add a new control line in a state where construction has already been performed, and the cost increases.

本発明は上記の点に鑑みて為された発明であり、本発明の目的は、通信機能を有する電力メータを分電盤の施工後に採用した場合であっても、分電盤内に簡単に取り付けることができるＰＬＣ装置および分電盤を提供することにある。   The present invention is an invention made in view of the above points, and the object of the present invention is to easily install the power meter having a communication function in the distribution board even when it is adopted after the distribution board is installed. An object of the present invention is to provide a PLC device and a distribution board that can be attached.

本発明のＰＬＣ装置は、通信機能を有する電力メータから電力線通信によって受信した電力線通信信号を、無線通信によって所定装置へ送信するための無線信号に変換する本体部と、前記本体部と一体に設けられ当該本体部を分電盤の内器に取り付けるための取付部とを備えることを特徴とする。   A PLC device according to the present invention is provided integrally with a main body unit that converts a power line communication signal received by a power line communication from a power meter having a communication function into a wireless signal to be transmitted to a predetermined device by wireless communication. And an attachment part for attaching the main body part to the internal unit of the distribution board.

このＰＬＣ装置において、前記取付部は、前記内器として前記分電盤内に設けられた主幹ブレーカに着脱自在に取り付けられることが好ましい。   In this PLC device, it is preferable that the attachment portion is detachably attached to a main breaker provided in the distribution board as the internal unit.

このＰＬＣ装置において、前記取付部は、前記主幹ブレーカの一次側端子に直接接続される接続端子を含むことが好ましい。   In this PLC device, it is preferable that the attachment portion includes a connection terminal directly connected to a primary side terminal of the main breaker.

このＰＬＣ装置において、前記取付部は、前記分電盤内に設けられた主幹ブレーカの一次側に設けられた前記内器に取り付けられることが好ましい。   In this PLC device, it is preferable that the attachment portion is attached to the inner unit provided on the primary side of the main breaker provided in the distribution board.

本発明の分電盤は、前記ＰＬＣ装置と、主幹ブレーカと、複数の分岐ブレーカと、前記ＰＬＣ装置、前記主幹ブレーカおよび前記複数の分岐ブレーカが収納される筐体とを備えることを特徴とする。   The distribution board according to the present invention includes the PLC device, a main breaker, a plurality of branch breakers, and a casing in which the PLC device, the main breaker, and the plurality of branch breakers are stored. .

本発明では、電力線通信の機能を有するＰＬＣ装置に、本体部を分電盤の内器に取り付けるための取付部を備えることによって、分電盤内に簡単に取り付けることができる。これにより、分電盤の施工後に、通信機能を有しない電力メータから通信機能を有する電力メータに変更された場合に、通信機能を有する電力メータと所定装置との間の情報の授受に対して簡単に対応することができる。   In the present invention, the PLC device having the function of power line communication can be easily attached to the distribution board by including the attachment part for attaching the main body part to the internal unit of the distribution board. As a result, when the power meter having no communication function is changed to the power meter having the communication function after construction of the distribution board, information is exchanged between the power meter having the communication function and the predetermined device. It can be handled easily.

実施形態１に係るＰＬＣ装置の概略図である。1 is a schematic diagram of a PLC device according to a first embodiment. 実施形態１に係る分電盤内の配置図である。FIG. 3 is a layout diagram in a distribution board according to the first embodiment. 実施形態１に係るＰＬＣ装置の構成を示すブロック図である。It is a block diagram which shows the structure of the PLC apparatus which concerns on Embodiment 1. FIG. 実施形態２に係る分電盤内の配置図である。FIG. 6 is a layout diagram in a distribution board according to a second embodiment.

（実施形態１）
実施形態１に係るＰＬＣ装置（ＰＬＣモジュール）１は、図１に示すように、電力線通信（ＰＬＣ：Power Line Communication）および無線通信の各機能を有する本体部１１を備えている。また、ＰＬＣ装置１は、ＰＬＣ装置１（本体部１１）を分電盤２（図２参照）の内器に取り付けるための取付部１２を備えている。本実施形態では、分電盤２の内器としての主幹ブレーカ３にＰＬＣ装置１が取り付けられる場合について説明する。なお、本実施形態では、戸建住宅の場合について説明するが、戸建住宅に限らず、例えば集合住宅の各住戸や事務所、工場などであってもよい。 (Embodiment 1)
As shown in FIG. 1, a PLC device (PLC module) 1 according to the first embodiment includes a main body 11 having functions of power line communication (PLC) and wireless communication. Moreover, the PLC apparatus 1 is provided with the attaching part 12 for attaching the PLC apparatus 1 (main-body part 11) to the internal unit of the distribution board 2 (refer FIG. 2). This embodiment demonstrates the case where the PLC apparatus 1 is attached to the main breaker 3 as an internal unit of the distribution board 2. As shown in FIG. In addition, although this embodiment demonstrates the case of a detached house, it is not restricted to a detached house, For example, each dwelling unit of a housing complex, an office, a factory, etc. may be sufficient.

まず、分電盤２について図２を用いて説明する。分電盤２は、ＰＬＣ装置１が収納される筐体２１と、筐体２１に被着される蓋体（図示せず）とを備えている。また、分電盤２は、筐体２１に収納される内器として、ＰＬＣ装置１と、主幹ブレーカ３と、複数の分岐ブレーカ４と、主幹ブレーカ３の一次側に設けられた電流制限器５とを備えている。   First, the distribution board 2 will be described with reference to FIG. The distribution board 2 includes a housing 21 in which the PLC device 1 is housed, and a lid (not shown) that is attached to the housing 21. In addition, the distribution board 2 is a PLC device 1, a main breaker 3, a plurality of branch breakers 4, and a current limiter 5 provided on the primary side of the main breaker 3 as an internal unit housed in the casing 21. And.

主幹ブレーカ３は、低圧配電線の電圧極に接続される２つの電源側端子３１１，３１３と、低圧配電線の中性極に接続される電源側端子３１２とを備えている。また、主幹ブレーカ３は、電源側端子３１１，３１３に各別に対応して電圧極となる２つの負荷側端子３２１，３２３と、電源側端子３１２に対応して中性極となる負荷側端子３２２とを備えている。さらに、主幹ブレーカ３は、電源側端子３１１〜３１３とそれぞれ対応する負荷側端子３２１〜３２３との間の通電をオンオフする開閉機構（図示せず）を内部に備えており、当該開閉機構のオンオフ操作用のハンドル３３が前面に露設されている。また、主幹ブレーカ３は、電源側端子３１１〜３１３とそれぞれ対応する負荷側端子３２１〜３２３との間に過電流（過負荷電流や短絡電流）が流れたり、漏電電流が生じたりした際（つまり異常電流が発生した際）に、電源側端子３１１〜３１３とそれぞれ対応する負荷側端子３２１〜３２３との間を遮断し、かつ、ハンドル３３をオフ側に位置させる回路遮断機能を有している。   The main breaker 3 includes two power supply side terminals 311 and 313 connected to the voltage electrode of the low voltage distribution line, and a power supply side terminal 312 connected to the neutral electrode of the low voltage distribution line. In addition, the main breaker 3 includes two load side terminals 321 and 323 that are voltage poles corresponding to the power source side terminals 311 and 313 and a load side terminal 322 that is a neutral pole corresponding to the power source side terminal 312. And. Further, the main breaker 3 includes an open / close mechanism (not shown) for turning on / off the current between the power-side terminals 311 to 313 and the corresponding load-side terminals 321 to 323, respectively. An operation handle 33 is exposed on the front surface. In addition, the main breaker 3 has an overcurrent (overload current or short circuit current) between the power supply side terminals 311 to 313 and the corresponding load side terminals 321 to 323, or a leakage current is generated (that is, When an abnormal current occurs), the power supply side terminals 311 to 313 and the corresponding load side terminals 321 to 323 are disconnected, and the handle 33 is located on the off side. .

３つの電源側端子３１１〜３１３は、主幹ブレーカ３の上側において水平方向に並んで設けられている。電源側端子３１１、電源側端子３１２、電源側端子３１３の順に並んでいる。各電源側端子３１１〜３１３は、導電材料からなり、各電源側端子３１１〜３１３には、端子ねじ３１４によって電力線２２（２２１〜２２３）が接続される。   The three power supply side terminals 311 to 313 are provided in the horizontal direction on the upper side of the main breaker 3. The power supply side terminal 311, the power supply side terminal 312, and the power supply side terminal 313 are arranged in this order. The power supply terminals 311 to 313 are made of a conductive material, and the power lines 22 (221 to 223) are connected to the power supply terminals 311 to 313 by terminal screws 314.

各分岐ブレーカ４は、導電バー４１１〜４１３に対する電源側接続部（図示せず）のプラグイン接続によって、導電バー４１１〜４１３に電気的に接続されている。分岐ブレーカ４の内部には、電源側接続部と負荷側接続部４２との間の通電をオンオフする開閉機構（図示せず）が収納されている。また、分岐ブレーカ４は、電源側接続部と負荷側接続部４２との間に過電流が流れたり、漏電が生じたりした際（つまり異常時）に、電源側接続部と負荷側接続部４２との間を遮断する回路遮断機能を有している。なお、導電バー４１１〜４１３には、電源送り端子４１４〜４１６が設けられている。   Each branch breaker 4 is electrically connected to the conductive bars 411 to 413 by plug-in connection of a power supply side connection portion (not shown) to the conductive bars 411 to 413. Inside the branch breaker 4, an opening / closing mechanism (not shown) for turning on / off the power supply between the power supply side connection portion and the load side connection portion 42 is housed. Further, the branch breaker 4 has a power supply side connection portion and a load side connection portion 42 when an overcurrent flows between the power supply side connection portion and the load side connection portion 42 or a leakage occurs (that is, when an abnormality occurs). Has a circuit cutoff function for blocking between the two. The conductive bars 411 to 413 are provided with power supply terminals 414 to 416.

なお、図示しないが、分電盤２は、系統連系用の連系ブレーカを内器として主幹ブレーカ３の一次側（電源側）に備えてもよい。連系ブレーカとしては、例えば太陽光発電のための太陽光発電用連系ブレーカ、燃料電池のための燃料電池用連系ブレーカ、蓄電池のための蓄電池用連系ブレーカ、電気自動車用バッテリのためのバッテリ用連系ブレーカなどがある。   Although not shown, the distribution board 2 may be provided on the primary side (power supply side) of the main breaker 3 with an interconnection breaker for grid interconnection as an internal unit. For example, a connection breaker for photovoltaic power generation for solar power generation, a connection breaker for a fuel cell for a fuel cell, a connection breaker for a storage battery for a storage battery, and a battery for an electric vehicle There are battery-connected breakers.

続いて、ＰＬＣ装置１の構成について説明する。図１に示すように、ＰＬＣ装置１は、ＰＬＣ信号と無線信号との間で信号変換する本体部１１と、ＰＬＣ装置１を分電盤２の内器に取り付けるための取付部１２とを備えている。本体部１１は、電力メータ６から電力線通信によって受信したＰＬＣ信号を無線信号に変換し、この無線信号を無線通信によって機器管理装置７へ送信する。また、本体部１１は、機器管理装置７から無線通信によって受信した無線信号をＰＬＣ信号に変換し、このＰＬＣ信号を電力線通信によって電力メータ６に送信する。ＰＬＣ信号は、図１の破線のような経路でＰＬＣ装置１の本体部１１と電力メータ６との間で伝送される。   Next, the configuration of the PLC device 1 will be described. As shown in FIG. 1, the PLC device 1 includes a main body portion 11 that converts a signal between a PLC signal and a radio signal, and an attachment portion 12 for attaching the PLC device 1 to an internal unit of the distribution board 2. ing. The main body 11 converts the PLC signal received from the power meter 6 through power line communication into a radio signal, and transmits this radio signal to the device management apparatus 7 through radio communication. In addition, the main body 11 converts a wireless signal received from the device management apparatus 7 by wireless communication into a PLC signal, and transmits the PLC signal to the power meter 6 by power line communication. The PLC signal is transmitted between the main body 11 of the PLC device 1 and the power meter 6 through a path as shown by a broken line in FIG.

電力メータ６は、通信機能を有する電子式電力メータいわゆるスマートメータである。この電力メータ６は、電力会社（供給会社・資源供給事業者）が電力料金を徴収するために需要家に設置されており、電力会社から供給される電力の需要家での総電力使用量を計測し、この総電力使用量を含む検針情報を電力会社側に送信する。図示しないが、電力メータ６は、電力使用量を計測する計測機能を有する計測ユニットと、他の機器と通信する通信機能を有する通信ユニットとを備えている。   The power meter 6 is an electronic power meter so-called smart meter having a communication function. This electric power meter 6 is installed in a consumer in order for an electric power company (supplier company / resource supplier) to collect electric power charges, and the total electric power consumption in the electric power consumer supplied from the electric power company is calculated. Measure and transmit meter reading information including this total power consumption to the power company. Although not shown, the power meter 6 includes a measurement unit having a measurement function for measuring the power consumption and a communication unit having a communication function for communicating with other devices.

ＰＬＣ装置１からの無線信号の送信先となる機器管理装置７は、住戸内の複数の負荷機器（図示せず）を管理する装置（コントローラ）である。この機器管理装置７は、各負荷機器の動作を制御したり、各負荷機器の電力使用を管理したりする。機器管理装置７と複数の負荷機器とで、需要家側のネットワークとしてのＨＥＭＳ（Home Energy Management System）ネットワークを構築する。負荷機器は、電力を消費して動作する電気機器である。負荷機器としては、例えば家電機器や設備機器などがある。家電機器としては、テレビ、オーディオ機器または冷蔵庫などがある。設備機器としては、空調機器（空調設備）または照明機器（照明設備）などがある。   The device management device 7 that is the transmission destination of the wireless signal from the PLC device 1 is a device (controller) that manages a plurality of load devices (not shown) in the dwelling unit. The device management apparatus 7 controls the operation of each load device and manages the power usage of each load device. A HEMS (Home Energy Management System) network as a customer side network is constructed by the device management apparatus 7 and a plurality of load devices. The load device is an electric device that operates by consuming electric power. Examples of the load device include home appliances and equipment. As home appliances, there are TVs, audio devices, refrigerators, and the like. The equipment includes air conditioning equipment (air conditioning equipment) or lighting equipment (lighting equipment).

本体部１１で変換される無線信号は、例えば９２０ＭＨｚ帯特定小電力無線や無線ＬＡＮ（Local Area Network）などの規格に従ってＰＬＣ装置１と機器管理装置７との間で送受信される。   The radio signal converted by the main body 11 is transmitted and received between the PLC device 1 and the device management device 7 in accordance with a standard such as a 920 MHz band specific low power radio or a wireless local area network (LAN).

本体部１１は、ＰＬＣ信号と無線信号との間で信号変換するメディアコンバータ機能を有している。この本体部１１は、図３に示すように、電力メータ６（図１参照）と電力線通信を行う通信回路１１１を備えている。通信回路１１１は、電力線２２上の交流電力に重畳されたＰＬＣ信号を受信する受信機能と、電力線２２上の交流電力に重畳させてＰＬＣ信号を送信する送信機能とを有している。また、本体部１１は、通信回路１１１で受信されたＰＬＣ信号を復調してデジタル信号からなるデータを取り出す復調回路１１２と、通信回路１１１から送信するデータを変調する変調回路１１３とを備えている。さらに、本体部１１は、機器管理装置７と無線通信を行う無線通信部１１４を備えている。無線通信部１１４は、無線信号を機器管理装置７に送信する送信機能と、機器管理装置７から無線信号を受信する受信機能とを有している。さらに、本体部１１は、復調回路１１２、変調回路１１３および無線通信部１１４を制御するモデム部１１５と、搬送波を得るための発信器１１６とを備えている。モデム部１１５は、無線通信部１１４に対して、復調回路１１２で復調されたデータを取り込んで無線通信の規格に沿って機器管理装置７に無線信号を送信させる。また、モデム部１１５は、無線通信部１１４で受信された無線信号をＰＬＣ信号に変調させるように変調回路１１３を制御する。さらに、モデム部１１５は、電力線通信に必要な諸設定データなどを記憶するメモリ部（図示せず）を備えている。また、本体部１１は、ＰＬＣ装置１内の回路へ動作電源を供給するための電源部１１７を備えている。電源部１１７は、電力線２２から得る商用交流電源を直流電源に変換するためのＡＣ／ＤＣコンバータ（図示せず）を含んでいる。また、電源部１１７の出力側には二次電池１１８が接続されている。通常時には電源部１１７の出力を動作電源として用い、かつ、二次電池１１８を充電する。停電時には二次電池１１８を動作電源として用いる。   The main body 11 has a media converter function for signal conversion between a PLC signal and a radio signal. As shown in FIG. 3, the main body 11 includes a communication circuit 111 that performs power line communication with the power meter 6 (see FIG. 1). The communication circuit 111 has a reception function for receiving a PLC signal superimposed on AC power on the power line 22 and a transmission function for transmitting a PLC signal superimposed on AC power on the power line 22. The main body 11 also includes a demodulation circuit 112 that demodulates the PLC signal received by the communication circuit 111 and extracts data including a digital signal, and a modulation circuit 113 that modulates data transmitted from the communication circuit 111. . Furthermore, the main body 11 includes a wireless communication unit 114 that performs wireless communication with the device management apparatus 7. The wireless communication unit 114 has a transmission function for transmitting a wireless signal to the device management apparatus 7 and a reception function for receiving a wireless signal from the device management apparatus 7. The main body 11 further includes a modem unit 115 that controls the demodulation circuit 112, the modulation circuit 113, and the wireless communication unit 114, and a transmitter 116 for obtaining a carrier wave. The modem unit 115 causes the wireless communication unit 114 to capture the data demodulated by the demodulation circuit 112 and cause the device management apparatus 7 to transmit a wireless signal in accordance with the wireless communication standard. Further, the modem unit 115 controls the modulation circuit 113 so as to modulate the wireless signal received by the wireless communication unit 114 into a PLC signal. Further, the modem unit 115 includes a memory unit (not shown) that stores various setting data necessary for power line communication. Further, the main body 11 includes a power supply unit 117 for supplying operating power to circuits in the PLC device 1. The power supply unit 117 includes an AC / DC converter (not shown) for converting commercial AC power obtained from the power line 22 into DC power. A secondary battery 118 is connected to the output side of the power supply unit 117. Normally, the output of the power supply unit 117 is used as an operating power supply, and the secondary battery 118 is charged. In the event of a power failure, the secondary battery 118 is used as an operating power source.

また、本体部１１は、主幹ブレーカ３を擬似的に漏電遮断させる主幹ブレーカ遮断機能を有している。本体部１１は、主幹ブレーカ３を擬似的に漏電遮断させる遮断部１１９を備えている。遮断部１１９は、電力メータ６によって主幹ブレーカ３を遮断させる遮断機能に代えて、主幹ブレーカ３を遮断させる。   In addition, the main body 11 has a main breaker cutoff function that artificially cuts off the main breaker 3 in an earth leakage. The main body 11 includes a blocking unit 119 that artificially interrupts the main circuit breaker 3 with an earth leakage. The blocking unit 119 blocks the main breaker 3 in place of the blocking function for blocking the main breaker 3 with the power meter 6.

図１に示す取付部１２は、分電盤２の内器としての主幹ブレーカ３に着脱自在に取り付けられる。この取付部１２は、導電材料からなる複数（図示例では２つ）の接続端子１２１，１２２を備えており、本体部１１に一体に設けられている。各接続端子１２１，１２２には、貫通孔１２３，１２４が形成されている。貫通孔１２３は、接続端子１２１を電源側端子３１１に機械的かつ電気的に接続させるために用いられる。貫通孔１２４は、接続端子１２２を電源側端子３１３に機械的かつ電気的に接続させるために用いられる。このような取付部１２によって、図１の一点鎖線のように、接続端子１２１が電源側端子３１１に直接接続され、接続端子１２２が電源側端子３１３に直接接続される。これにより、図２に示すように、ＰＬＣ装置１（本体部１１）は主幹ブレーカ３に隣接して取り付けられる。   The attachment part 12 shown in FIG. 1 is detachably attached to a main breaker 3 as an internal unit of the distribution board 2. The attachment portion 12 includes a plurality of (two in the illustrated example) connection terminals 121 and 122 made of a conductive material, and is integrally provided on the main body portion 11. Through holes 123 and 124 are formed in the connection terminals 121 and 122, respectively. The through hole 123 is used for mechanically and electrically connecting the connection terminal 121 to the power supply side terminal 311. The through hole 124 is used to mechanically and electrically connect the connection terminal 122 to the power supply side terminal 313. With the mounting portion 12, the connection terminal 121 is directly connected to the power supply side terminal 311, and the connection terminal 122 is directly connected to the power supply side terminal 313, as indicated by a dashed line in FIG. Thereby, as shown in FIG. 2, the PLC device 1 (main body portion 11) is attached adjacent to the main breaker 3.

また、取付部１２は、図１に示すように、上下方向の両端に１組の取付孔１２５，１２６が形成されている。これらの取付孔１２５，１２６は、分電盤２の筐体２１（図２参照）に対してＰＬＣ装置１を固定するために用いられる。これにより、ＰＬＣ装置１を分電盤２内で固定することができる。   Further, as shown in FIG. 1, the mounting portion 12 has a pair of mounting holes 125 and 126 formed at both ends in the vertical direction. These mounting holes 125 and 126 are used for fixing the PLC device 1 to the casing 21 (see FIG. 2) of the distribution board 2. Thereby, the PLC apparatus 1 can be fixed in the distribution board 2.

次に、本実施形態に係るＰＬＣ装置１の取付方法について図１を用いて説明する。ここでは、既に分電盤２が住戸に施工された状態、すなわち、主幹ブレーカ３と複数の分岐ブレーカ４と電流制限器５とが内器として筐体２１に収納されている状態において、ＰＬＣ装置１を分電盤２内に追加する場合について説明する。   Next, a method for attaching the PLC device 1 according to the present embodiment will be described with reference to FIG. Here, in a state where the distribution board 2 is already installed in the dwelling unit, that is, in a state where the main breaker 3, the plurality of branch breakers 4 and the current limiter 5 are housed in the casing 21 as an internal unit, A case where 1 is added to the distribution board 2 will be described.

まず、施工者は主幹ブレーカ３の各電源側端子３１１，３１３の端子ねじ３１４を外す。その後、施工者は、ＰＬＣ装置１の接続端子１２１の貫通孔１２３が電源側端子３１１のねじ孔（図示せず）と重なるように接続端子１２１と電源側端子３１１との位置合わせを行う。同様に、施工者は、接続端子１２２の貫通孔１２４が電源側端子３１３のねじ孔（図示せず）と重なるように接続端子１２２と電源側端子３１３との位置合わせを行う。その後、施工者は、端子ねじ３１４を貫通孔１２３，１２４に挿通して電力線２２を挟持しながらねじ孔に螺合させる。また、施工者は、ＰＬＣ装置１の取付孔１２５，１２６に挿通された取付ねじ（図示せず）を用いてＰＬＣ装置１を分電盤２に固定する。   First, the installer removes the terminal screws 314 of the power supply side terminals 311 and 313 of the main breaker 3. Thereafter, the installer aligns the connection terminal 121 and the power supply side terminal 311 so that the through hole 123 of the connection terminal 121 of the PLC device 1 overlaps with a screw hole (not shown) of the power supply side terminal 311. Similarly, the installer aligns the connection terminal 122 and the power supply side terminal 313 so that the through hole 124 of the connection terminal 122 overlaps with a screw hole (not shown) of the power supply side terminal 313. Thereafter, the installer inserts the terminal screw 314 into the through holes 123 and 124 and screwes the terminal screw 314 into the screw hole while sandwiching the power line 22. Further, the installer fixes the PLC device 1 to the distribution board 2 using mounting screws (not shown) inserted through the mounting holes 125 and 126 of the PLC device 1.

以上説明した本実施形態のＰＬＣ装置１は、本体部１１を主幹ブレーカ３のような内器に取り付けるための取付部１２を備える。これにより、通信機能を有しない電力メータ（図示せず）から通信機能を有する電力メータ６に変更された場合に、電力メータ６と機器管理装置７との間を中継することができ、電力メータ６と機器管理装置７との間の通信に簡単に対応することができる。すなわち、既設の分電盤２であっても簡単な施工でＰＬＣ装置１を分電盤２内に追加することができ、通信機能を有する電力メータ６と通信することができる。この際に、省スペースでＰＬＣ装置１を分電盤２内に設置することができる。   The PLC device 1 according to the present embodiment described above includes the attachment portion 12 for attaching the main body portion 11 to an internal unit such as the main breaker 3. Thus, when the power meter (not shown) having no communication function is changed to the power meter 6 having the communication function, the power meter 6 and the device management apparatus 7 can be relayed. 6 and the device management apparatus 7 can be easily handled. That is, even if it is the existing distribution board 2, the PLC apparatus 1 can be added in the distribution board 2 by simple construction, and it can communicate with the electric power meter 6 which has a communication function. At this time, the PLC device 1 can be installed in the distribution board 2 in a space-saving manner.

また、本実施形態のＰＬＣ装置１では、取付部１２が分電盤２の内器としての主幹ブレーカ３に着脱自在に取り付けられる。これにより、通信機能を有しない電力メータから通信機能を有する電力メータ６に変更された場合に、電力メータ６と機器管理装置７との間の通信により簡単に対応することができる。   Moreover, in the PLC apparatus 1 of this embodiment, the attachment part 12 is attached to the main breaker 3 as an internal unit of the distribution board 2 so that attachment or detachment is possible. Thereby, when it changes from the power meter which does not have a communication function to the power meter 6 which has a communication function, it can respond easily by communication between the power meter 6 and the apparatus management apparatus 7. FIG.

さらに、本実施形態のＰＬＣ装置１では、取付部１２の接続端子１２１，１２２が主幹ブレーカ３の電源側端子（一次側端子）３１１，３１３に直接接続される。これにより、ＰＬＣ装置１の固定とＰＬＣ装置１の電気的接続とを同時に行うことができるので、分電盤２へのＰＬＣ装置１の施工が簡単となる。   Furthermore, in the PLC device 1 of the present embodiment, the connection terminals 121 and 122 of the mounting portion 12 are directly connected to the power supply side terminals (primary side terminals) 311 and 313 of the main breaker 3. Thereby, since fixation of the PLC apparatus 1 and electrical connection of the PLC apparatus 1 can be performed simultaneously, construction of the PLC apparatus 1 to the distribution board 2 becomes easy.

また、電力メータ６と機器管理装置７との間の通信が、電力線２２を用いた電力線通信であるため、電力線２２とは別に通信線を施工する必要がない。   In addition, since communication between the power meter 6 and the device management apparatus 7 is power line communication using the power line 22, it is not necessary to construct a communication line separately from the power line 22.

（実施形態２）
実施形態２に係るＰＬＣ装置１は、図４に示すように、主幹ブレーカ３の電源側（一次側）に設置された内器である端子台８に接続されている点で、実施形態１に係るＰＬＣ装置１（図２参照）と相違する。なお、実施形態１のＰＬＣ装置１と同様の構成要素については、同一の符号を付して説明を省略する。 (Embodiment 2)
As shown in FIG. 4, the PLC device 1 according to the second embodiment is connected to a terminal block 8 that is an internal unit installed on the power source side (primary side) of the main breaker 3, and thus the first embodiment is different from the first embodiment. This is different from the PLC device 1 (see FIG. 2). In addition, about the component similar to the PLC apparatus 1 of Embodiment 1, the same code | symbol is attached | subjected and description is abbreviate | omitted.

本実施形態の端子台８は、主幹ブレーカ３の電源側に設置された内器として分電盤２内に収納されている。この端子台８は、３組（６つ）の送り端子８１１〜８１６を備えた一次送り端子台である。また、端子台８には、ＰＬＣ装置１およびブレーカ９の各々と電気的に接続するための接続部（図示せず）を備えている。端子台８に設置されるブレーカ９としては、一次送りブレーカや電流制限器（サービスブレーカ、リミッタ）、連系ブレーカなどがある。ブレーカ９は、分岐ブレーカ４（図２参照）と同様に電源側接続部（図示せず）および負荷側接続部９１を備えており、端子台８の接続部に対する電源側接続部のプラグイン接続によって、端子台８に機械的かつ電気的に接続される。   The terminal block 8 of the present embodiment is housed in the distribution board 2 as an internal unit installed on the power source side of the main breaker 3. This terminal block 8 is a primary feed terminal block provided with three sets (six) of feed terminals 811 to 816. In addition, the terminal block 8 is provided with a connection portion (not shown) for electrical connection with each of the PLC device 1 and the breaker 9. Examples of the breaker 9 installed on the terminal block 8 include a primary feed breaker, a current limiter (service breaker, limiter), and an interconnection breaker. Like the branch breaker 4 (see FIG. 2), the breaker 9 includes a power supply side connection portion (not shown) and a load side connection portion 91, and plug-in connection of the power supply side connection portion to the connection portion of the terminal block 8 is performed. Thus, the terminal block 8 is mechanically and electrically connected.

本実施形態の取付部（図示せず）は、分電盤２内に設けられた主幹ブレーカ３の電源側（一次側）に設けられた内器である端子台８に取り付けられている。本実施形態の取付部は、端子台８の接続部に対してプラグイン接続する接続端子（図示せず）を備えている。これにより、本実施形態の取付部は、端子台８に電気的に接続されている。なお、実施形態１の取付部１２（図１参照）と同様の機能については説明を省略する。   An attachment portion (not shown) of the present embodiment is attached to a terminal block 8 that is an internal unit provided on the power source side (primary side) of the main breaker 3 provided in the distribution board 2. The attachment portion of the present embodiment includes a connection terminal (not shown) that is plug-in connected to the connection portion of the terminal block 8. Thereby, the attachment part of this embodiment is electrically connected to the terminal block 8. In addition, description is abbreviate | omitted about the function similar to the attaching part 12 (refer FIG. 1) of Embodiment 1. FIG.

以上説明した本実施形態のＰＬＣ装置１は、主幹ブレーカ３よりも電源側（一次側）に設けられた内器としての端子台８に取り付けられる。これにより、主幹ブレーカ３が遮断した場合であっても、ＰＬＣ装置１への電力供給を継続させることができる。   The PLC device 1 of the present embodiment described above is attached to the terminal block 8 as an internal unit provided on the power supply side (primary side) with respect to the main breaker 3. Thereby, even if it is a case where the main breaker 3 interrupts | blocks, the electric power supply to the PLC apparatus 1 can be continued.

なお、本実施形態の変形例として、ＰＬＣ装置１は、主幹ブレーカ３の一次側に設けられた端子台８に代えて、主幹ブレーカ３の一次側に設けられたブレーカに取り付けられてもよい。このようなブレーカとしては、一次送りブレーカや電流制限器、連系ブレーカなどがある。   As a modification of the present embodiment, the PLC device 1 may be attached to a breaker provided on the primary side of the main breaker 3 instead of the terminal block 8 provided on the primary side of the main breaker 3. Examples of such a breaker include a primary feed breaker, a current limiter, and an interconnection breaker.

また、各実施形態において、ＰＬＣ装置１の取付部１２の構成は、ＰＬＣ装置１の接続端子を内器の接続部に機械的かつ電気的に接続することができ、かつ、ＰＬＣ装置１を分電盤２内に固定することができれば、他の構成であってもよい。   Moreover, in each embodiment, the structure of the attachment part 12 of the PLC apparatus 1 can connect the connection terminal of the PLC apparatus 1 mechanically and electrically to the connection part of an internal unit, and the PLC apparatus 1 is divided. Any other configuration may be used as long as it can be fixed in the board 2.

なお、ＰＬＣ装置１を導電バー４１１〜４１３に着脱自在に取り付けることも可能である。このような場合であっても、通信機能を有しない電力メータから通信機能を有する電力メータ６に変更された場合に、電力メータ６と機器管理装置７との間を中継することができ、電力メータ６と機器管理装置７との間の通信に簡単に対応することができる。ただし、この場合、ＰＬＣ装置１を主幹ブレーカ３に取り付けた場合および主幹ブレーカ３の一次側の内器に取り付けた場合に比べて、ノイズの影響が大きくなる。   It is also possible to attach the PLC device 1 to the conductive bars 411 to 413 in a detachable manner. Even in such a case, when the power meter having no communication function is changed to the power meter 6 having the communication function, the power meter 6 and the device management apparatus 7 can be relayed, Communication between the meter 6 and the device management apparatus 7 can be easily handled. However, in this case, the influence of noise is greater than when the PLC device 1 is attached to the main breaker 3 and when it is attached to the primary unit on the primary side of the main breaker 3.

１ ＰＬＣ装置
１１ 本体部
１２ 取付部
１２１，１２２ 接続端子
２ 分電盤
２１ 筐体
３ 主幹ブレーカ
３１１〜３１３ 電源側端子（一次側端子）
４ 分岐ブレーカ
６ 電力メータ
７ 機器管理装置（所定装置）
８ 端子台 DESCRIPTION OF SYMBOLS 1 PLC apparatus 11 Main-body part 12 Mounting part 121,122 Connection terminal 2 Distribution board 21 Case 3 Master breaker 311 to 313 Power supply side terminal (primary side terminal)
4 Branch breaker 6 Electric power meter 7 Equipment management device (predetermined device)
8 Terminal block

Claims (5)

通信機能を有する電力メータから電力線通信によって受信した電力線通信信号を、無線通信によって所定装置へ送信するための無線信号に変換する本体部と、
前記本体部と一体に設けられ当該本体部を分電盤の内器に取り付けるための取付部と
を備えることを特徴とするＰＬＣ装置。 A main unit that converts a power line communication signal received by power line communication from a power meter having a communication function into a wireless signal for transmission to a predetermined device by wireless communication;
A PLC device, comprising: an attachment portion that is provided integrally with the main body portion, and is attached to the internal unit of the distribution board. 前記取付部は、前記内器として前記分電盤内に設けられた主幹ブレーカに着脱自在に取り付けられることを特徴とする請求項１記載のＰＬＣ装置。   The PLC device according to claim 1, wherein the attachment portion is detachably attached to a main breaker provided in the distribution board as the internal unit. 前記取付部は、前記主幹ブレーカの一次側端子に直接接続される接続端子を含むことを特徴とする請求項２記載のＰＬＣ装置。   The PLC device according to claim 2, wherein the attachment portion includes a connection terminal directly connected to a primary side terminal of the main breaker. 前記取付部は、前記分電盤内に設けられた主幹ブレーカの一次側に設けられた前記内器に取り付けられることを特徴とする請求項１記載のＰＬＣ装置。   The PLC device according to claim 1, wherein the attachment portion is attached to the inner unit provided on a primary side of a main breaker provided in the distribution board. 請求項１〜４のいずれか１項に記載のＰＬＣ装置と、
主幹ブレーカと、
複数の分岐ブレーカと、
前記ＰＬＣ装置、前記主幹ブレーカおよび前記複数の分岐ブレーカが収納される筐体と
を備えることを特徴とする分電盤。 The PLC device according to any one of claims 1 to 4,
With the main breaker,
Multiple branch breakers,
A distribution board comprising: the PLC device, the main breaker, and a housing in which the plurality of branch breakers are housed.
JP2012200762A 2012-09-12 2012-09-12 PLC device and distribution board Active JP6074838B2 (en)

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