JP6031686B2 - Distribution board with current measurement function - Google Patents

Distribution board with current measurement function Download PDF

Info

Publication number
JP6031686B2
JP6031686B2 JP2012163731A JP2012163731A JP6031686B2 JP 6031686 B2 JP6031686 B2 JP 6031686B2 JP 2012163731 A JP2012163731 A JP 2012163731A JP 2012163731 A JP2012163731 A JP 2012163731A JP 6031686 B2 JP6031686 B2 JP 6031686B2
Authority
JP
Japan
Prior art keywords
current sensor
breaker
distribution board
current
connector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2012163731A
Other languages
Japanese (ja)
Other versions
JP2014026728A (en
Inventor
加藤　浩久
浩久 加藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nitto Kogyo Corp
Original Assignee
Nitto Kogyo Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nitto Kogyo Corp filed Critical Nitto Kogyo Corp
Priority to JP2012163731A priority Critical patent/JP6031686B2/en
Publication of JP2014026728A publication Critical patent/JP2014026728A/en
Application granted granted Critical
Publication of JP6031686B2 publication Critical patent/JP6031686B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Breakers (AREA)
  • Distribution Board (AREA)

Description

本発明は、電流測定機能を備えた分電盤に関するものである。 The present invention relates to a distribution board having a current measuring function.

ブレーカの筐体の内部にＣＴ等の電流センサを収納した電流測定機能を備えたブレーカは、例えば特許文献１に記載のように従来から知られている。特許文献１では電流値を外部に出力するための信号線は負荷側端子付近から出線されている。しかし分電盤の内部には多数のブレーカが密接配置されているので、多数の信号線が盤内で錯綜し、ブレーカを交換する場合の作業性が悪くなるという問題があった。また、小型のブレーカにＣＴを内蔵すると小型化ゆえに精度が十分でないことがあり、ＣＴを用いずにセンサを小型化するためにホールセンサなどのチップ型センサ用基板を用いる方法もあるが、同基板へ電源を供給したり、計測信号線の処理が必要となり、問題が残されるものである。   A breaker having a current measurement function in which a current sensor such as a CT is housed inside a breaker casing is conventionally known as described in Patent Document 1, for example. In Patent Document 1, a signal line for outputting a current value to the outside is extended from the vicinity of a load side terminal. However, since a large number of breakers are closely arranged inside the distribution board, there is a problem in that a large number of signal lines are complicated in the board and workability when replacing the breaker is deteriorated. In addition, when CT is built in a small breaker, accuracy may not be sufficient due to miniaturization, and there is a method of using a chip type sensor substrate such as a Hall sensor in order to miniaturize the sensor without using CT. Problems arise, such as supplying power to the substrate or processing the measurement signal lines.

特開２００８−２８８１００号公報JP 2008-288100 A

従って本発明の目的は上記した従来の問題点を解決し、電流値を外部に出力するための信号線を簡素化することができる電流測定機能を備えた分電盤を提供することである。 Accordingly, an object of the present invention is to provide a distribution board having a current measurement function that can solve the above-described conventional problems and can simplify a signal line for outputting a current value to the outside.

上記の課題を解決するためになされた本発明の電流測定機能を備えた分電盤は、筐体の内部に電流センサを備え、筐体の前面に電源側のプラグ端子を備えたブレーカを分岐ブレーカとし、ブレーカの前面に配置された主幹バーに水平方向からプラグイン接続した分電盤であって、各電流センサの信号線のコネクタを、ブレーカのハンドルと前記プラグ端子との間に配置して各電流センサに対して水平方向に着脱される構造とするとともに、各コネクタから信号を取り出す信号線を、前記主幹バーに沿って各ブレーカに渡るように配線したことを特徴とするものである。 A distribution board having a current measurement function according to the present invention, which has been made to solve the above problems , branches a breaker having a current sensor inside the housing and a plug terminal on the power supply side on the front surface of the housing. A distribution board that is plugged in from the horizontal direction to the main bar placed on the front of the breaker, and the signal line connector of each current sensor is placed between the breaker handle and the plug terminal. And a signal line for taking out a signal from each connector is wired so as to cross each breaker along the main bar. .

なお請求項２のように、筐体の内部電路に臨む位置に電流センサ装着部を形成し、基板の一端から一対の腕部を突出させてその内側を端部が開放された配線挿通部とするとともに、一対の腕部の各々に磁気検出素子を配置した構造の電流センサをこの電流センサ装着部に前記配線挿通部が下向きとなるように組み入れた構造とすることが好ましい。 According to a second aspect of the present invention , a current sensor mounting portion is formed at a position facing the internal electrical path of the housing, a pair of arm portions project from one end of the substrate, and a wiring insertion portion whose inner ends are opened In addition, it is preferable to adopt a structure in which a current sensor having a structure in which a magnetic detection element is disposed on each of the pair of arm portions is incorporated in the current sensor mounting portion so that the wiring insertion portion faces downward .

本発明の電流測定機能を備えた分電盤は、電流センサの信号線のコネクタを、ハンドルよりも電源側に配置して各電流センサに対して水平方向に着脱される構造とするとともに、各コネクタから信号を取り出す信号線を、前記主幹バーに沿って各ブレーカに渡るように配線したものであるから、ブレーカの交換時に信号線が邪魔にならない利点がある。 The distribution board equipped with the current measurement function of the present invention has a structure in which the connector of the signal line of the current sensor is arranged on the power supply side of the handle and can be attached to and detached from each current sensor in the horizontal direction. Since the signal line for taking out the signal from the connector is wired so as to cross the breakers along the main bar, there is an advantage that the signal line does not get in the way when the breaker is replaced.

本発明によれば、主幹バーに対するブレーカの着脱方向とコネクタの着脱方向が同じであるので、作業性がよい利点がある。 According to this invention, since the attachment / detachment direction of the breaker with respect to the main bar and the attachment / detachment direction of the connector are the same, there is an advantage of good workability.

また本発明の分電盤は、信号線をブレーカの前面に配置された主幹バーに沿って、各ブレーカに渡り配線したので、コネクタの着脱作業性がよく、美観に優れ、ブレーカの着脱の際に信号線が邪魔になることもない。   In addition, the distribution board of the present invention has a signal line that is wired to each breaker along the main bar arranged on the front surface of the breaker. The signal line does not get in the way.

発明の実施形態のブレーカを示す斜視図である。It is a perspective view which shows the breaker of embodiment of invention. 電流センサの斜視図である。It is a perspective view of a current sensor. 電流センサの原理説明図である。It is a principle explanatory view of a current sensor. 電流センサ装着部を示す断面図である。It is sectional drawing which shows an electric current sensor mounting part. ブレーカの部分断面図である。It is a fragmentary sectional view of a breaker. 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.

以下に本発明の実施形態を説明する。
図１は本発明の実施形態に用いられるブレーカを示す斜視図であり、１０はブレーカの筐体、１１はその上面に位置するハンドル、１２は筐体１０の前面に設けられた電源側のプラグ端子、１３は負荷側のねじ無し端子である。このブレーカは上下３層に積層された主幹バーにプラグイン接続され、分岐ブレーカとして使用されるものである。筐体１０のハンドル１１よりも電源側には、電流センサ装着部１４が形成され、その内部に電流センサ１が装着されている。 Embodiments of the present invention will be described below.
FIG. 1 is a perspective view showing a breaker used in an embodiment of the present invention, wherein 10 is a case of the breaker, 11 is a handle located on the upper surface thereof, and 12 is a power supply side plug provided on the front surface of the case 10. A terminal 13 is a screw-less terminal on the load side. This breaker is plug-in connected to a main bar laminated in three layers, and is used as a branch breaker. A current sensor mounting portion 14 is formed on the power supply side of the housing 10 relative to the handle 11, and the current sensor 1 is mounted therein.

使用される電流センサ１は各実施形態に共通であり、図２にその構造を示す。この電流センサ１は、基板の一端から一対の腕部２を突出させてその内側に端部が開放された配線挿通部３を形成するとともに、一対の腕部２の各々にホール素子などの磁気検出素子４を配置した構造のものであり、その全体はカバー５に収納されている。なお基板には演算用の集積回路６が搭載されている。８はカバー５に形成されたコネクタ接続部である。   The current sensor 1 used is common to each embodiment, and its structure is shown in FIG. The current sensor 1 has a pair of arm portions 2 projecting from one end of a substrate to form a wiring insertion portion 3 having an open end portion inside thereof, and a magnetic element such as a Hall element in each of the pair of arm portions 2. The detection element 4 is arranged, and the whole is housed in a cover 5. An integrated circuit 6 for calculation is mounted on the substrate. Reference numeral 8 denotes a connector connecting portion formed on the cover 5.

図３は電流センサ１の原理説明図である。図示のように配線挿通部３の内部に挿入された電路７に電流が流れると電流値に応じた磁界が発生するため、磁気検出素子４には磁束密度に応じた起電力が生じる。磁気検出素子４から出力された電圧は集積回路６において増幅され、各磁気検出素子４からの出力を合成して出力電圧から電流値を得ることができる。一対の腕部２の各々に磁気検出素子４が配置されているため、仮に電路７の中心と配線挿通部３の中心とが正確に一致していない場合にも、電路７の電流値を精度よく検出することができる。また配線挿通部３は端部が開放されているため、腕部２が電路７を跨ぐように電流センサ１を挿入すればよく、ＣＴのように配線を切断して内部に貫通させる必要がない利点がある。   FIG. 3 is a diagram illustrating the principle of the current sensor 1. As shown in the drawing, when a current flows through the electric path 7 inserted in the wiring insertion portion 3, a magnetic field corresponding to the current value is generated, and thus an electromotive force corresponding to the magnetic flux density is generated in the magnetic detection element 4. The voltage output from the magnetic detection element 4 is amplified in the integrated circuit 6, and the current value can be obtained from the output voltage by combining the outputs from the magnetic detection elements 4. Since the magnetic detection element 4 is disposed in each of the pair of arms 2, even if the center of the electric circuit 7 and the center of the wiring insertion part 3 do not exactly coincide with each other, the current value of the electric circuit 7 is accurately determined. Can be detected well. Further, since the end of the wiring insertion portion 3 is open, it is only necessary to insert the current sensor 1 so that the arm portion 2 straddles the electric circuit 7, and it is not necessary to cut the wiring and penetrate the inside like the CT. There are advantages.

なお、図３では各腕部２に１つの磁気検出素子４を配置したが、その個数を更に増加させれば検出精度を更に高めることができる。集積回路６には動作用の電源が必要であるが、電流センサ１には出力用の通信線が接続されるため、それと並行させてコネクタから電源線を接続することができる。   In FIG. 3, one magnetic detection element 4 is arranged in each arm portion 2, but if the number is further increased, detection accuracy can be further improved. The integrated circuit 6 requires a power supply for operation. However, since an output communication line is connected to the current sensor 1, a power supply line can be connected from the connector in parallel therewith.

図４に示すように、この実施形態では前記した電流センサ装着部１４は筐体１０の内部空間１５と隔てられた凹部となっている。その形状は電流センサ１の腕部２が嵌まり込む両側の凹部１６と、ブレーカ１０の内部電路１８が裏面に嵌まり込む凸部１９とを備えたものである。電流センサ装着部１４は筐体１０を構成する隔壁により内部空間１５と隔てられているため、内部空間１５にゴミ等が侵入することはなく、また回路遮断時に内部空間１５で発生するアークガスが電流センサ１に悪影響を及ぼすおそれもない。なお内部電路１８としてはより線のような可撓性部分よりも、剛性のある部分を選択する方が、検出精度を安定させるうえで好ましいが、電流センサ１の配線挿通部３に内部電路が適切に位置できるように図示しない爪などの位置規制部を設けておけば、内部電路１８はより線のような可撓性部分の方が配線作業が容易となることもある。   As shown in FIG. 4, in this embodiment, the current sensor mounting portion 14 is a recess that is separated from the internal space 15 of the housing 10. The shape includes concave portions 16 on both sides in which the arm portion 2 of the current sensor 1 is fitted, and a convex portion 19 in which the internal electric path 18 of the breaker 10 is fitted on the back surface. Since the current sensor mounting portion 14 is separated from the internal space 15 by a partition wall constituting the housing 10, dust or the like does not enter the internal space 15, and the arc gas generated in the internal space 15 when the circuit is interrupted is a current. There is no possibility of adversely affecting the sensor 1. Although it is preferable to select a rigid portion as the internal electric circuit 18 rather than a flexible portion such as a stranded wire, it is preferable to stabilize the detection accuracy. However, an internal electric circuit is provided in the wiring insertion portion 3 of the current sensor 1. If a position restricting portion such as a claw (not shown) is provided so that it can be properly positioned, a flexible part such as a stranded wire in the internal electric circuit 18 can be easily wired.

図５に示すように、この電流センサ装着部１４に上方から電流センサ１が挿入される。内部電路１８を電流センサ１の配線挿通部３に位置させれば、内部電路１８を流れる電流により発生する磁界を磁気検出素子４が検出し、電流値を測定することができる。なお筐体１０は樹脂製であるため、発生磁界に影響を及ぼすことはない。   As shown in FIG. 5, the current sensor 1 is inserted into the current sensor mounting portion 14 from above. If the internal electric circuit 18 is positioned in the wiring insertion part 3 of the current sensor 1, the magnetic detection element 4 can detect the magnetic field generated by the current flowing through the internal electric circuit 18 and measure the current value. Since the housing 10 is made of resin, it does not affect the generated magnetic field.

なお電流センサ装着部１４の表面にはシール等の覆いを形成しておき、電流センサ１を装着する場合にはシール等を剥がすようにしておくことが好ましい。覆いとしてはシールのほか、キャップやノックアウト等、簡単に取り外しできるものを採用することができる。しかしこの実施形態では覆いは省略することも可能である。   It is preferable that a cover such as a seal is formed on the surface of the current sensor mounting portion 14 and that the seal or the like is peeled off when the current sensor 1 is mounted. As a cover, in addition to a seal, a cap or a knockout that can be easily removed can be used. However, in this embodiment, the cover can be omitted.

このような構造としておけば、製造段階では電流センサなしのブレーカとして生産し、分電盤製造時に電流監視分電盤とする場合には、必要部分のシール等を剥がして凹部を露出させ、上記のように電流センサ１を挿入し、電流測定機能付きのブレーカに変換することができる。   With such a structure, it is produced as a breaker without a current sensor at the manufacturing stage, and when a current monitoring distribution board is manufactured at the time of manufacturing the distribution board, the seal of the necessary part is peeled off to expose the recess, and the above Thus, the current sensor 1 can be inserted and converted into a breaker with a current measuring function.

電流センサ１の外側面前面側には、図６に示す電源線と信号線のバスケーブル２０が接続されるコネクタ２１が水平に設けられている。図１、図５に示すように、ブレーカの筐体１０の電流センサ装着部１４の前側には段部２２が設けられているので、この部分にバスケーブル２０のコネクタ２１を配置し、コネクタ２１から水平方向に突出する接続ピンを電流センサ１の前面に着脱可能としておく。   On the front side of the outer surface of the current sensor 1, a connector 21 to which a power cable and a signal line bus cable 20 shown in FIG. As shown in FIGS. 1 and 5, a step portion 22 is provided on the front side of the current sensor mounting portion 14 of the case 10 of the breaker. Therefore, the connector 21 of the bus cable 20 is arranged in this portion, and the connector 21. A connecting pin that protrudes horizontally from the front of the current sensor 1 is detachable.

図６は本発明の分電盤を示す斜視図であり、図示のように、バスケーブル２０は隣り合ったブレーカ１０、１０に渡り配線を行い、バスケーブル２０をコネクタ接続する。このような構造としておけば、主幹バー２３へのブレーカ１０のプラグイン方向とコネクタ接続方向とが同一の水平方向となり、コネクタの接続作業性がよく、余分なバスケーブル２０の寸法がなくてもよいので、美観上も優れる利点がある。つまり、主管バー２３からブレーカ１０を取り外すには水平方向に外すので、この取外しの動作だけでコネクタ２１が外すことができ、これらが同じ水平方向の動作なので、破損の恐れもないものである。なお電流信号の取り出しは、例えば各ブレーカにアドレスを付けておき、アドレスと電流値をセットにして順次送信するデジタル方式を採用することができる。 FIG. 6 is a perspective view showing a distribution board according to the present invention . As shown in the figure, the bus cable 20 is connected to the breakers 10 and 10 adjacent to each other, and the bus cable 20 is connected to the connector. With such a structure, the plug-in direction of the breaker 10 to the main bar 23 and the connector connecting direction are the same in the horizontal direction, the connector connection workability is good, and there is no extra bus cable 20 dimension. Since it is good, there is an advantage in terms of aesthetics. That is, since the breaker 10 is removed in the horizontal direction to remove the breaker 10 from the main pipe bar 23, the connector 21 can be removed only by this removal operation, and since these are the same horizontal operation, there is no risk of damage. For taking out the current signal, for example, it is possible to adopt a digital method in which an address is assigned to each breaker and the address and the current value are set and transmitted sequentially.

本発明では、電流センサ１の信号線のコネクタ２１を、筐体１０のハンドル１１よりも電源側に配置し、バスケーブル２０を主幹バー２３に沿って配置してある。換言すれば、信号線を含むバスケーブル２０を分岐ブレーカの列に沿って配置してあるので、整列して見栄えが良いうえ、ブレーカを取外す場合にも邪魔にならない。しかも主幹バー２３からブレーカを取外す方向と、電流センサ１がコネクタ２１から外れる方向が同一の水平方向であるため、作業性がよい。   In the present invention, the signal line connector 21 of the current sensor 1 is arranged on the power supply side with respect to the handle 11 of the housing 10, and the bus cable 20 is arranged along the main bar 23. In other words, since the bus cable 20 including the signal line is arranged along the branch breaker row, it is arranged and looks good, and it does not interfere with the removal of the breaker. Moreover, since the direction in which the breaker is removed from the main bar 23 and the direction in which the current sensor 1 is removed from the connector 21 are the same horizontal direction, workability is good.

なお、電流センサ１を設ける位置は必ずしも上記の実施形態に限定されるものではなく、また信号線のコネクタ２１もハンドル１１よりも電源側にあれば、必ずしも上記の実施形態に限定されるものではない。例えば、主幹バーを避けた位置の前面の上部または下部に配置することもできる。このようなものでもブレーカの負荷側には信号線がないのでブレーカを取り外す場合に邪魔にならず、ブレーカの負荷側端子に接続された電線と信号線とが近接した位置にならず配線作業の邪魔にならず見栄えもよいものである。   The position where the current sensor 1 is provided is not necessarily limited to the above-described embodiment, and the signal line connector 21 is not necessarily limited to the above-described embodiment as long as the signal line connector 21 is closer to the power supply side than the handle 11. Absent. For example, it can also be arranged in the upper part or the lower part of the front surface at a position avoiding the main bar. Even in this case, since there is no signal line on the load side of the breaker, there is no obstacle when removing the breaker, and the wire connected to the load side terminal of the breaker and the signal line are not close to each other. It does not get in the way and looks good.

また、上記の実施形態では、バスケーブルは電源線と信号線を備えたもので、図示しない中央制御機器が信号の制御と電源の供給も行っており、電源が各々のブレーカになくてもよいので好ましいが、電流センサ１に電源回路を付加させて各々のブレーカ内で電源を得ることもできる。
また、コネクタ２１を複数備えるバスケーブル２０は１本で１列全体を接続するものでもよいが、例えばコネクタ２１を５個１セットとしたバスケーブル２０とし、各々の端部のコネクタ２１はコネクタ２１同士が連結できるものでは、部品が共通化でき部品在庫が減り好ましいものである。 In the above embodiment, the bus cable is provided with a power supply line and a signal line, and a central control device (not shown) controls signals and supplies power, and the power supply does not have to be provided to each breaker. Therefore, although it is preferable, a power source can be obtained in each breaker by adding a power source circuit to the current sensor 1.
Further, the bus cable 20 having a plurality of connectors 21 may be connected to the entire row by one. For example, the bus cable 20 includes five connectors 21 as one set, and the connector 21 at each end is connected to the connector 21. Those that can be connected to each other are preferable because the parts can be shared and the parts inventory is reduced.

以上に説明したように、本発明によれば、電流値を外部に出力するための信号線を簡素化することができる電流測定機能を備えた分電盤を提供することができる。 As described above, according to the present invention, it is possible to provide a distribution board having a current measurement function capable of simplifying a signal line for outputting a current value to the outside.

１ 電流センサ
２ 腕部
３ 配線挿通部
４ 磁気検出素子
５ カバー
６ 集積回路
７ 電路
８ コネクタ接続部
１０ 筐体
１１ ハンドル
１２ プラグ端子
１３ ねじ無し端子
１４ 電流センサ装着部
１５ 内部空間
１６ 凹部
１８ 内部電路
１９ 凸部
２０ バスケーブル
２１ コネクタ
２２ 段部
２３ 主幹バー DESCRIPTION OF SYMBOLS 1 Current sensor 2 Arm part 3 Wire insertion part 4 Magnetic detection element 5 Cover 6 Integrated circuit 7 Electric circuit 8 Connector connection part 10 Housing | casing 11 Handle 12 Plug terminal 13 Screwless terminal 14 Current sensor mounting part 15 Internal space 16 Recessed part 18 Internal electric circuit 19 Convex part 20 Bus cable 21 Connector 22 Step part 23 Main bar

Claims (2)

筐体の内部に電流センサを備え、筐体の前面に電源側のプラグ端子を備えたブレーカを分岐ブレーカとし、ブレーカの前面に配置された主幹バーに水平方向からプラグイン接続した分電盤であって、各電流センサの信号線のコネクタを、ブレーカのハンドルと前記プラグ端子との間に配置して各電流センサに対して水平方向に着脱される構造とするとともに、各コネクタから信号を取り出す信号線を、前記主幹バーに沿って各ブレーカに渡るように配線したことを特徴とする電流測定機能を備えた分電盤。 A distribution board that has a current sensor inside the case, a breaker with a power-side plug terminal on the front side of the case is a branch breaker, and is plugged in horizontally from the main bar placed on the front side of the breaker. In addition, the signal line connector of each current sensor is arranged between the handle of the breaker and the plug terminal so as to be attached to and detached from each current sensor in the horizontal direction, and the signal is taken out from each connector. A distribution board having a current measurement function, wherein a signal line is wired so as to cross each breaker along the main bar. 筐体の内部電路に臨む位置に電流センサ装着部を形成し、基板の一端から一対の腕部を突出させてその内側を端部が開放された配線挿通部とするとともに、一対の腕部の各々に磁気検出素子を配置した構造の電流センサをこの電流センサ装着部に前記配線挿通部が下向きとなるように組み入れたことを特徴とする請求項１記載の電流測定機能を備えた分電盤。A current sensor mounting portion is formed at a position facing the internal electric circuit of the housing, and a pair of arm portions are protruded from one end of the substrate and the inside thereof is used as a wiring insertion portion with the end portions open. 2. A distribution board having a current measuring function according to claim 1, wherein a current sensor having a structure in which a magnetic detection element is arranged is incorporated in the current sensor mounting portion so that the wiring insertion portion faces downward. .
JP2012163731A 2012-07-24 2012-07-24 Distribution board with current measurement function Expired - Fee Related JP6031686B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012163731A JP6031686B2 (en) 2012-07-24 2012-07-24 Distribution board with current measurement function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012163731A JP6031686B2 (en) 2012-07-24 2012-07-24 Distribution board with current measurement function

Publications (2)

Publication Number Publication Date
JP2014026728A JP2014026728A (en) 2014-02-06
JP6031686B2 true JP6031686B2 (en) 2016-11-24

Family

ID=50200224

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012163731A Expired - Fee Related JP6031686B2 (en) 2012-07-24 2012-07-24 Distribution board with current measurement function

Country Status (1)

Country Link
JP (1) JP6031686B2 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2600339Y2 (en) * 1993-05-10 1999-10-12 大崎電気工業株式会社 Circuit breaker and watt-hour meter
JP2001066327A (en) * 1999-08-25 2001-03-16 Yazaki Corp Current sensor
EP2282321B1 (en) * 2009-08-06 2015-10-14 ABB Schweiz AG Module for measuring the current in a conductor of a low voltage distributor
JP5804272B2 (en) * 2012-03-02 2015-11-04 東芝ライテック株式会社 Distribution board
JP5980557B2 (en) * 2012-04-27 2016-08-31 河村電器産業株式会社 Power measuring device

Also Published As

Publication number Publication date
JP2014026728A (en) 2014-02-06

Similar Documents

Publication Publication Date Title
CN102004180B (en) Current sensor
US9230765B2 (en) Modular overload relay assembly with mechanically isolated connector
JP6594020B2 (en) Distribution board
JP2017026392A (en) Switch box and overcurrent prevention method
JP5994973B2 (en) Distribution board
JP2009150654A (en) Current sensor
JP2009150653A (en) Current sensor
JP4891217B2 (en) Current sensor
JP6083017B2 (en) Adapter for current measurement
JP6031686B2 (en) Distribution board with current measurement function
US9559513B2 (en) Voltage sensor contact for an electronic device
US9912289B2 (en) Distributor load cell for determining phase current in photovoltaic installations
JP6051088B2 (en) Distribution board
JP6083018B2 (en) Current measuring member
JP4514124B2 (en) Plug unit with built-in current detector
JP2010185848A (en) Structure and method for assembling current detector
JP6019424B2 (en) Current sensor mounting structure for power distribution equipment
JP2009140680A (en) Terminal board with current sensor
JP7252772B2 (en) service plug
JP6173739B2 (en) Distribution board
JP6186600B2 (en) Breaker with current measurement function and distribution board using this breaker
JP6019423B2 (en) Adapter for current measurement
JP6051418B2 (en) Distribution board
JP5084582B2 (en) Terminal block
JP2015061443A (en) Distribution board

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20150520

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20160328

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20160405

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20160601

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20160927

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20160927

R150 Certificate of patent or registration of utility model

Ref document number: 6031686

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees