JP2007014094A - Distribution board - Google Patents

Distribution board Download PDF

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Publication number
JP2007014094A
JP2007014094A JP2005190187A JP2005190187A JP2007014094A JP 2007014094 A JP2007014094 A JP 2007014094A JP 2005190187 A JP2005190187 A JP 2005190187A JP 2005190187 A JP2005190187 A JP 2005190187A JP 2007014094 A JP2007014094 A JP 2007014094A
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breaker
plug terminal
end surface
mounting base
distribution board
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JP2005190187A
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JP4636608B2 (en
Inventor
Yasushi Matsukuma
裕史 松隈
Yuki Nakagaki
友樹 中垣
Ken Aoyama
謙 青山
Toshiaki Goto
俊朗 後藤
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Toyota Motor Corp
Nitto Kogyo Corp
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Toyota Motor Corp
Nitto Kogyo Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a distribution board in which a branch breaker can be extended without preparing a large cabinet. <P>SOLUTION: The distribution board comprises a breaker unit 1 where the plug terminal 14a of a short main line bar connected with the primary or secondary of a breaker is stretched from one end face side of a main line bar case provided on the lower surface at the breaker attachment base 12a of a cabinet section 12 containing the breaker, and a plug terminal receiving portion having the same shape as that of the plug terminal and fitted with the plug terminal is provided in the short main line bar on the inside of the other end face opposing the one end face, and a unit fixing rail 2 to which a plurality of breaker units 1 can be fixed removably. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、大型のキャビネットを用意することなく、分岐用のブレーカを増設できる分電盤に関するものである。   The present invention relates to a distribution board in which a branch breaker can be added without preparing a large cabinet.

分電盤は安全上及び保安上の観点からキャビネット内に主幹用及び分岐用のブレーカを収納しているが、回路の増設を予測して分岐用のブレーカを増設できるようにするためのスペースのある大きさのキャビネットを使用するとともに予め増設用ブレーカの一次側端子と接続するための余長部分のある主幹バーを設置しているのを普通とする。
しかし、分岐用のブレーカを増設のためのスペースのあるキャビネットを使用することは、回路の増設を不要となるものにおいては製造コストの高い余分な大きさのキャビネットを使用して初期投資に余分な費用をかけるものである。また、主幹バーの余長部分による感電事故等を防止するため絶縁対策も必要とする。 The distribution board houses the main and branch breakers in the cabinet from the viewpoint of safety and security. However, the distribution board is designed to increase the number of branch breakers. It is normal to use a cabinet of a certain size and to install a main bar with an extra length to connect with the primary side terminal of the extension breaker in advance.
However, using a cabinet with a space for adding a branch breaker is not necessary for the initial investment by using an extra-sized cabinet that has a high manufacturing cost if no additional circuit is required. It costs money. In addition, insulation measures are required to prevent electric shock accidents due to the extra length of the main bar.

この問題を解決した分電盤として、前記した増設用ブレーカの一次側端子と接続するための余長部分を無くして、分岐用のブレーカを増設する時に増設用ブレーカの一次側端子と接続する主幹バーの延長部が形成されるようにしたものがあった（例えば、特許文献１参照）。   As a distribution board that solves this problem, the main length that is connected to the primary terminal of the extension breaker when the branch breaker is added is eliminated by eliminating the extra length for connecting to the primary terminal of the extension breaker. There was one in which an extended portion of the bar was formed (for example, see Patent Document 1).

しかしながら、前記した特許文献１のものは増設用ブレーカの一次側端子と接続する主幹バーの余長部分についての問題点を解決したものであるが、回路の増設を予測して分岐用のブレーカを増設できるようにするためのスペースのある大きさのキャビネットを用意しなければならないという問題は解決されていないものであった。
実開平６−７０４０４公開公報 However, the above-mentioned Patent Document 1 solves the problem of the extra length portion of the main bar connected to the primary side terminal of the extension breaker. The problem of having to prepare a cabinet with enough space to allow for additional expansion has not been solved.
Japanese Utility Model Publication No. 6-70404

本発明は前記のような従来の問題点を解決して、分岐用のブレーカを容易にかつ安全に追加、削減できる分電盤を提供することである。   The present invention is to solve the conventional problems as described above, and to provide a distribution board that can easily and safely add or reduce a branch breaker.

本発明の分電盤は、ブレーカを収納したキャビネット部のブレーカ取付基台の下面に設けた幹線バーケースの一端面側から前記ブレーカの一次側又は二次側に接続した短幹線バーのプラグ端子部を張設し、また、該一端面側に対向した他端面内側に前記プラグ端子部と同一形状のプラグ端子部を嵌合するプラグ端子受部を前記短幹線バーに設けてなるブレーカユニットと、該ブレーカユニットを複数着脱自在に取付できるユニット取付レールよりなることを特徴とするものを請求項１に記載の発明としたものである。   The distribution board of the present invention is a plug terminal of a short trunk bar connected to the primary side or the secondary side of the breaker from one end surface side of the trunk bar case provided on the lower surface of the breaker mounting base of the cabinet section in which the breaker is housed. A breaker unit in which a short terminal bar is provided with a plug terminal receiving portion for fitting a plug terminal portion having the same shape as the plug terminal portion inside the other end surface facing the one end surface side. The invention according to claim 1 comprises a unit mounting rail on which a plurality of breaker units can be detachably mounted.

そして、この請求項１に記載の発明において、ブレーカと短幹線バーの接続をプラグ端子により行い、ブレーカ取付基台の係止具によりブレーカ取付基台とブレーカとを着脱自在としたものを請求項２に記載の発明としたものである。   And in this invention of Claim 1, the connection between the breaker and the short trunk bar is performed by a plug terminal, and the breaker mounting base and the breaker are made detachable by a locking tool of the breaker mounting base. This is the invention described in 2.

さらに、前記請求項１又は２に記載の発明において、ブレーカを収納したキャビネット部をブレーカ取付基台とカバーよりなるものとし、ブレーカの負荷側端子部が臨む取付基台の側縁に設けた側板部の端面と、該側板部の端面と当接するカバーの負荷側端子部が臨む側板部の端面との間にブレーカの負荷側電線の引き込み部を形成したものを請求項３に記載の発明とする。   Furthermore, in the invention according to claim 1 or 2, the cabinet portion in which the breaker is housed is composed of a breaker mounting base and a cover, and the side plate provided on the side edge of the mounting base facing the load side terminal portion of the breaker The invention according to claim 3, wherein a lead-in portion for the load side electric wire of the breaker is formed between the end surface of the portion and the end surface of the side plate portion facing the load side terminal portion of the cover that contacts the end surface of the side plate portion. To do.

前記した請求項１に記載の発明の分電盤は、ユニット取付レールにブレーカユニットを複数取付けることにより、ブレーカユニットがブレーカを収納したキャビネット部のブレーカ取付基台の下面に設けた幹線バーケースの一端面側から前記ブレーカの一次側又は二次側に接続した短幹線バーにプラグ端子部を張設し、また、該一端面側に対向した他端面内側に前記プラグ端子部と同一形状のプラグ端子部を嵌合するプラグ端子を前記短幹線バーに設けてなるものであるから、隣り合うこととなるブレーカユニットの各短幹線バーは幹線バーケースの一端面側から張設したプラグ端子部と他端面内側に設けたプラグ端子受部により接続されて主幹用のブレーカの負荷側幹線と接続するので、分岐用のブレーカの増設が容易なものである。しかも、分岐用のブレーカの増設は部品点数が少なく構造が簡単で安価に製造できるユニット取付レールにブレーカユニットを取り付けることで行えるので初期投資を軽減できる効果がある。また、ブレーカはキャビネット部に収納されているうえ各短幹線バーは幹線バーケースに格納されているので導電部が露出されておらず安全上及び保安上も優れたものである。   In the distribution board according to the first aspect of the present invention, the main bar bar case provided on the lower surface of the breaker mounting base of the cabinet portion in which the breaker unit houses the breaker is provided by mounting a plurality of breaker units on the unit mounting rail. A plug terminal portion is stretched on a short trunk bar connected from the one end surface side to the primary side or secondary side of the breaker, and a plug having the same shape as the plug terminal portion is arranged on the inner side of the other end surface facing the one end surface side. Since the plug terminal for fitting the terminal portion is provided on the short main bar, each short main bar of the breaker unit that is adjacent to each other has a plug terminal portion stretched from one end surface side of the main bar case. Since it is connected by the plug terminal receiving part provided inside the other end surface and connected to the load side trunk line of the main breaker, it is easy to add a branch breaker. In addition, branch breakers can be added by attaching the breaker unit to a unit mounting rail that has a small number of parts, has a simple structure, and can be manufactured at low cost, thereby reducing the initial investment. Further, since the breaker is housed in the cabinet portion and each short trunk bar is housed in the trunk bar case, the conductive portion is not exposed and the safety and security are excellent.

また、請求項２に記載の発明の分電盤は、前記請求項１に記載の発明の構成に、ブレーカと短幹線バーの接続をプラグ端子により行い、ブレーカ取付基台の係止具によりブレーカ取付基台とブレーカとを着脱自在としたものであるから、ブレーカの交換が容易なものとなり、保守作業時間が短縮できる効果を付加するものである。   According to a second aspect of the distribution board of the present invention, the breaker and the short trunk bar are connected to each other by a plug terminal in the configuration of the first aspect of the present invention, and the breaker is connected to the breaker mounting base by a stopper. Since the mounting base and the breaker are detachable, the breaker can be easily replaced, and the effect of shortening the maintenance work time is added.

さらに、請求項３に記載の発明の分電盤は、前記請求項１又は２に記載の発明の構成に、ブレーカを収納したキャビネット部をブレーカ取付基台とカバーよりなるものとし、ブレーカの負荷側端子部が臨む取付基台の側縁に設けた側板部の端面と、該側板部の端面と当接するカバーの負荷側端子部が臨む側板部の端面との間にブレーカの負荷側電線の引き込み部を形成したものであるから、ブレーカの負荷側電線を取り付けた状態でカバーの開放又は取り外しができ保守作業が容易になる。また、取付基台の側板部の端面とカバーの側板部の端面との間にブレーカの負荷側電線の引き込み部を形成したので配線作業が容易であり、さらに、ブレーカの負荷側電線を取付基台の側板部の端面とカバーの側板部の端面との間に挟み込むことにより負荷側電線の固定や粉塵の侵入を防ぐことができるものである。   Furthermore, the distribution board according to the third aspect of the present invention is the distribution board according to the first or second aspect, wherein the cabinet portion containing the breaker is composed of a breaker mounting base and a cover. Between the end surface of the side plate portion provided on the side edge of the mounting base facing the side terminal portion and the end surface of the side plate portion facing the load side terminal portion of the cover that contacts the end surface of the side plate portion. Since the lead-in portion is formed, the cover can be opened or removed with the load-side electric wire of the breaker attached, and maintenance work is facilitated. In addition, since the load-side wire lead-in portion of the breaker is formed between the end surface of the side plate portion of the mounting base and the end surface of the side plate portion of the cover, wiring work is easy, and the load-side wire of the breaker is attached to the mounting base. By sandwiching between the end surface of the side plate portion of the base and the end surface of the side plate portion of the cover, it is possible to prevent the load side electric wires from being fixed and dust from entering.

次に、本発明の好ましい実施の形態を図に基づき説明する。
１はブレーカユニットであり、該ブレーカユニット１はブレーカ１１を収納したキャビネット部１２のブレーカ取付基台１２ａの下面に幹線バーケース１３を設け、該幹線バーケース１３の一端面側から前記ブレーカ１１の一次側又は二次側に接続した短幹線バー１４の接続プラグ端子部１４ａを張設し、また、該一端面側に対向した他端面内側に前記プラグ端子部１４ａと同一形状のプラグ端子部を嵌合するプラグ端子受部１４ｂを前記短幹線バー１４に設けてなるものである。 Next, a preferred embodiment of the present invention will be described with reference to the drawings.
1 is a breaker unit, and the breaker unit 1 is provided with a main bar bar case 13 on the lower surface of a breaker mounting base 12a of a cabinet section 12 in which the breaker 11 is housed. A connecting plug terminal portion 14a of the short trunk bar 14 connected to the primary side or the secondary side is stretched, and a plug terminal portion having the same shape as the plug terminal portion 14a is provided inside the other end surface facing the one end surface side. A plug terminal receiving portion 14 b to be fitted is provided on the short trunk bar 14.

２は前記ブレーカユニット１を複数着脱自在に取付できるユニット取付レールである。この図示のユニット取付レール２は外鍔２１ａ付の断面コ字型のレール本体２１を基台２２に縦長方向に立設させた自立型のものであるが、基台を設けることなくレール本体２１を建屋の壁面や柱に取り付けたものであってもよい。   Reference numeral 2 denotes a unit mounting rail on which a plurality of the breaker units 1 can be detachably mounted. The illustrated unit mounting rail 2 is a self-supporting type in which a U-shaped cross-sectional rail body 21 with an outer flange 21a is erected on a base 22 in a longitudinal direction. However, the rail main body 21 is not provided with a base. May be attached to the wall or pillar of the building.

前記ブレーカユニット１を構成するブレーカ１１を収納するキャビネット部１２は、図６に示すものはブレーカ取付基台１２ａに逆箱状のカバー１２ｂをヒンジ部をもって開閉自在として設けたものである。なお、カバー１２ｂはヒンジ連結することなく取り外し自在としてもよいし、さらに、ブレーカ取付基台１２ａを箱状とし、カバー１２ｂを板状としてもよい。また、前記ブレーカ取付基台１２ａの下面に設けた幹線バーケース１３は、図９に示すように短幹線バー１４を収納する浅箱状の幹線バーケース本体１３ａと該幹線バーケース本体１３ａの上部開口を閉塞する蓋部１３ｂより構成して、該蓋部１３ｂをブレーカ取付基台１２ａの下面に位置するものとしている。そして、図示のものは図４−図８に示すように蓋部１３ｂの一部をブレーカ取付基台１２ａと一体としている。   The cabinet portion 12 that houses the breaker 11 constituting the breaker unit 1 is the one shown in FIG. 6 in which a reverse box-shaped cover 12b is provided on a breaker mounting base 12a with a hinge portion so as to be freely opened and closed. The cover 12b may be removable without being hinged, or the breaker mounting base 12a may be a box and the cover 12b may be a plate. Further, as shown in FIG. 9, the trunk bar case 13 provided on the lower surface of the breaker mounting base 12a includes a shallow box-shaped trunk bar case body 13a for accommodating the short trunk bar 14, and an upper portion of the trunk bar case body 13a. The lid 13b is configured to close the opening, and the lid 13b is located on the lower surface of the breaker mounting base 12a. In the illustrated example, a part of the lid 13b is integrated with the breaker mounting base 12a as shown in FIGS.

そして、前記キャビネット部１２には図６に示すようにブレーカ１１がブレーカ取付基台１２ａに該取付基台１２ａに設けたワンタッチ式の係止具１２ｃにより簡単に着脱自在に取り付けて収納されて、該ブレーカ１１の一次側又は二次側を前記短幹線バー１４に接続している。すなわち、図示のものは図７、図８に示すようにブレーカ１１をプラグインアダプタ１６に搭載して図示を略した一次側の端子部と接続した該プラグインアダプタ１６の下端面から突設したプラグ端子１６ａを前記ブレーカ取付基台１２ａ及び蓋部１３ｂに透設した差し込み孔を介して貫通させて幹線バー１４に設けた図９に示すばね板よりなるプラグ端子受部１４ｃに挟持させて、ブレーカ１１と短幹線バー１４の接続をプラグ端子１６ａにより行っている。なお、プラグインアダプタ１６を介することなくブレーカ１１の裏面に直接プラグ端子１６ａを突設したものであってもよい。また、プラグインによらず被覆電線によりネジ止め等の手段によりブレーカ１１と短幹線バー１４の接続を行ってもよい。   Then, in the cabinet portion 12, as shown in FIG. 6, the breaker 11 is stored in the breaker mounting base 12a by being easily detachably attached by a one-touch type locking tool 12c provided on the mounting base 12a. A primary side or a secondary side of the breaker 11 is connected to the short main bar 14. That is, as shown in FIGS. 7 and 8, the breaker 11 is mounted on the plug-in adapter 16 and protruded from the lower end surface of the plug-in adapter 16 connected to the primary side terminal not shown. The plug terminal 16a is passed through the insertion hole formed in the breaker mounting base 12a and the lid portion 13b and is sandwiched between the plug terminal receiving portion 14c made of a spring plate shown in FIG. The breaker 11 and the short trunk bar 14 are connected by a plug terminal 16a. In addition, the plug terminal 16a may be directly provided on the back surface of the breaker 11 without using the plug-in adapter 16. Moreover, you may connect the breaker 11 and the short trunk bar | burr 14 by means, such as screwing, with a covered electric wire irrespective of a plug-in.

また、前記幹線バーケース１３は短幹線バー１４のプラグ端子部１４ａを張設する一端面側を、キャビネット部１２の一端面側からプラグ端子部１４ａの長さ分を内側に位置させ、他方該一端面側に対向した他端面をその分キャビネット部１２の他端面側から外側に位置させて、接続プラグ端子部１４ａの上端側が庇状となるキャビネット部１２の一端面側により覆われるものとしている。   The trunk bar case 13 has one end surface side where the plug terminal portion 14a of the short trunk line bar 14 is stretched, and the length of the plug terminal portion 14a is positioned inward from the one end surface side of the cabinet portion 12, while the other side The other end surface facing the one end surface side is positioned to the outside from the other end surface side of the cabinet portion 12 and the upper end side of the connection plug terminal portion 14a is covered with the one end surface side of the cabinet portion 12 having a bowl shape. .

また、幹線バーケース１３の一端面側に対向した他端面側の蓋部１３ｂはキャビネット部１２の他端面側の下方から露出するので、プラグ端子受部１４ｂを該蓋部１３ｂの上側から設けた切り込み孔１３ｃに臨むように設ければ、隣り合うこととなるブレーカユニット１の各短幹線バー１４の接続プラグ端子部１４ａとプラグ端子受部１４ｂの接続が容易であるうえ接続プラグ端子部１４ａが露出することがないので絶縁が確保できるものである。   Further, since the lid portion 13b on the other end surface side facing the one end surface side of the main bar case 13 is exposed from the lower side on the other end surface side of the cabinet portion 12, the plug terminal receiving portion 14b is provided from the upper side of the lid portion 13b. If provided so as to face the notch hole 13c, the connection plug terminal portion 14a and the plug terminal receiving portion 14b of each short main bar 14 of the breaker unit 1 adjacent to each other can be easily connected, and the connection plug terminal portion 14a is provided. Since it is not exposed, insulation can be secured.

さらに、ブレーカユニット１を構成するブレーカ１１を収納したキャビネット部１２を板状のブレーカ取付基台１２ａと該ブレーカ取付基台１２ａに開閉自在又は着脱自在に設けた逆箱状のカバー１２ｂよりなるものとしたうえ、ブレーカ１１の負荷側端子部１１１が臨む取付基台１２ａの側縁に立上げて側板部１２１を設け、該側板部１２１の端面と、該側板部１２１の端面と当接するカバー１２ａの負荷側端子部が臨む側板部１２２の端面との間にブレーカ１１の負荷側電線の引き込み部を形成したものとすれば、ブレーカ１１の負荷側電線を取り付けた状態でカバー１２ｂの開蓋又は取り外しができ保守作業が容易になる。また、取付基台１２ａの側板部１２１の端面とカバー１２ｂの側板部１２２の端面との間にブレーカの負荷側電線の引き込み部を形成したので配線作業が容易であり、さらに、この引き込み部は図示のものは取付基台１２ａの側板部１２１の端面とカバー１２ｂの側板部１２２の端面とに一連にウレタンゴムのような弾性材１２３を取り付けて該弾性材のもつ弾性変形により負荷側電線を挟持するものとしており、負荷側電線の固定や粉塵の侵入を防ぐことができるものである。なお、上記構成は負荷電線の数の変動に対応できるものであるが、側板部１２１の端面に凹部を形成してパッキン材を装着したものであってもよい。また、ブレーカ取付基台１２ａを箱状とし、カバー１２ｂを板状とした場合には、ブレーカ取付基台１２ａの側板部１２１は開口より下がった位置となり、カバー１２ｂの側板部１２２の端面は突出した位置となる。   Further, the cabinet portion 12 that houses the breaker 11 constituting the breaker unit 1 is composed of a plate-like breaker mounting base 12a and an inverted box-shaped cover 12b that is provided on the breaker mounting base 12a so as to be openable and detachable. In addition, a side plate portion 121 is provided at a side edge of the mounting base 12a facing the load side terminal portion 111 of the breaker 11, and the end surface of the side plate portion 121 and the cover 12a in contact with the end surface of the side plate portion 121 are provided. If the load side electric wire lead-in portion of the breaker 11 is formed between the end surface of the side plate portion 122 facing the load side terminal portion, the cover 12b can be opened or opened with the load side electric wire of the breaker 11 attached. It can be removed for easy maintenance. In addition, since the lead-in portion for the load-side electric wire of the breaker is formed between the end surface of the side plate portion 121 of the mounting base 12a and the end surface of the side plate portion 122 of the cover 12b, wiring work is easy. In the illustrated example, an elastic material 123 such as urethane rubber is attached in series to the end surface of the side plate portion 121 of the mounting base 12a and the end surface of the side plate portion 122 of the cover 12b, and the load side electric wire is connected by elastic deformation of the elastic material. It is intended to be clamped and can prevent the load side electric wire from being fixed and dust from entering. In addition, although the said structure can respond to the fluctuation | variation of the number of load electric wires, the recessed part may be formed in the end surface of the side-plate part 121, and the packing material may be mounted | worn. Further, when the breaker mounting base 12a is box-shaped and the cover 12b is plate-shaped, the side plate portion 121 of the breaker mounting base 12a is positioned below the opening, and the end surface of the side plate portion 122 of the cover 12b protrudes. It becomes the position.

このように構成されたものは、ユニット取付レール２の上部に図１−図３に示すように、入力電源線と接続する主幹ブレーカを収納した前記ブレーカユニット１と同様の構成とした主幹用のブレーカユニット１ａを取り付ける。また、図示のものは入力電源線の接続を容易とするため入線用アダプタ１ｂをブレーカユニット１ａの側面に設けているがこれを介することなく直接ブレーカユニット１ａ内に入線してもよい。なお、入線用アダプタ１ｂは内部に銅バーを備え、一端は主幹ブレーカの電源側端子に接続され、他端には入力電源線の接続部が設けられている。   As shown in FIG. 1 to FIG. 3, the structure configured in this way is used for a trunk having the same configuration as the breaker unit 1 in which the trunk breaker connected to the input power line is accommodated as shown in FIGS. 1 to 3. Install the breaker unit 1a. Further, in the illustrated example, the input adapter 1b is provided on the side surface of the breaker unit 1a in order to facilitate the connection of the input power supply line. However, the input adapter line may be directly connected to the breaker unit 1a without going through the adapter. The incoming line adapter 1b has a copper bar inside, one end is connected to the power supply side terminal of the main breaker, and the other end is provided with a connection portion of the input power supply line.

そして、前記を主幹用のブレーカユニット１ａの下方に順次ブレーカユニット１を隣り合うこととなる各短幹線バー１４のプラグ端子部１４ａとプラグ端子受部１４ｂを接続してユニット取付レール２に取り付ければ必要な回路数に応じた分岐用のブレーカの増設ができるものである。しかも、分岐用のブレーカの増設は部品点数が少なく構造が簡単で安価に製造できるユニット取付レール２にブレーカユニット１を取り付けることで行えるので初期投資を軽減できる効果がある。また、ブレーカ１１はキャビネット部１２に収納されているうえ各短幹線バー１４は幹線バーケース１３に格納されているので導電部が露出されておらず安全上及び保安上も優れたものである。また、分岐用のブレーカを削減する場合にはブレーカユニット１を取り外すことにより不要な導電部を残すことなく行えるので絶縁処理等の後処理が不要なものである。   If the plug terminal portion 14a and the plug terminal receiving portion 14b of each short trunk bar 14 are connected to the unit mounting rail 2 by sequentially connecting the breaker units 1 below the main breaker unit 1a, A branch breaker can be added according to the required number of circuits. Moreover, the addition of the breaker for branching can be performed by attaching the breaker unit 1 to the unit mounting rail 2 which has a small number of parts, has a simple structure and can be manufactured at low cost, and thus has an effect of reducing initial investment. Moreover, since the breaker 11 is stored in the cabinet part 12 and each short trunk bar 14 is stored in the trunk bar case 13, the conductive part is not exposed and the safety and security are excellent. Further, when the number of branch breakers is reduced, the breaker unit 1 can be removed without leaving an unnecessary conductive portion, so that post-processing such as insulation treatment is unnecessary.

また、この実施形態では図示のように幹線を形成するための短幹線バー１４が３本づつ幹線バーケース１３に収納して三相三線又は単相三線のブレーカの電源側端子と対応させたものとしているが、負荷回路から引き込んだアース線と接続するアース用の短幹線バーを組込んだ４本としてもよい。   Further, in this embodiment, as shown in the figure, three short trunk bars 14 for forming a trunk line are accommodated in a trunk bar case 13 in correspondence with the power supply side terminals of a three-phase three-wire or single-phase three-wire breaker. However, it is also possible to employ four wires incorporating a grounding short bar connected to the ground wire drawn from the load circuit.

本発明の実施の形態を示す斜視図である。It is a perspective view which shows embodiment of this invention. ブレーカユニットを増設する工程を示す上方から見た斜視図である。It is the perspective view seen from the upper part which shows the process of adding a breaker unit. ブレーカユニットを増設する工程を示す下方から見た斜視図である。It is the perspective view seen from the lower part which shows the process of adding a breaker unit. ブレーカユニットをプラグ端子部の裏側から見た斜視図である。It is the perspective view which looked at the breaker unit from the back side of the plug terminal part. ブレーカユニットをプラグ端子受部の表側から見た斜視図である。It is the perspective view which looked at the breaker unit from the front side of the plug terminal receiving part. ブレーカユニットをカバーを開けて示す斜視図である。It is a perspective view which opens a cover and shows a breaker unit. ブレーカユニットをカバーを開けてブレーカを外した状態を示す表側から見た斜視図である。It is the perspective view seen from the front side which shows the state which opened the breaker unit and opened the breaker. ブレーカユニットをカバーを開けてブレーカを外した状態を示す裏側から見た斜視図である。It is the perspective view seen from the back side which shows the state which opened the cover and opened the breaker unit. ブレーカユニットの幹線バーケース本体と短幹線バーを示す斜視図である。It is a perspective view which shows the trunk line bar case main body and short trunk line bar of a breaker unit. ブレーカユニットの短幹線バーのプラグ端子部とプラグ端子受部の接続状態を示す斜視図である。It is a perspective view which shows the connection state of the plug terminal part and plug terminal receiving part of the short trunk line bar of a breaker unit.

符号の説明Explanation of symbols

１ ブレーカユニット
11 ブレーカ
12 キャビネット部
12a ブレーカ取付台
12b カバー
12c 係止具
121 側板部
122 側板部
13 幹線バーケース
14 短幹線バー
14a 接続プラグ端子部
14b プラグ端子受部
16a プラグ端子
２ ユニット取付レール 1 Breaker unit
11 Breaker
12 Cabinet section
12a Breaker mounting base
12b cover
12c Locking device
121 Side plate
122 Side plate
13 Trunk bar case
14 Short bar
14a Connection plug terminal
14b Plug terminal holder
16a Plug terminal 2 Unit mounting rail

Claims (3)

ブレーカを収納したキャビネット部のブレーカ取付基台の下面に設けた幹線バーケースの一端面側から前記ブレーカの一次側又は二次側に接続した短幹線バーのプラグ端子部を張設し、また、該一端面側に対向した他端面内側に前記プラグ端子部と同一形状のプラグ端子部を嵌合するプラグ端子受部を前記短幹線バーに設けてなるブレーカユニットと、該ブレーカユニットを複数着脱自在に取付できるユニット取付レールよりなることを特徴とする分電盤。   A plug terminal portion of a short trunk bar connected to the primary side or secondary side of the breaker from one end surface side of the trunk bar case provided on the lower surface of the breaker mounting base of the cabinet portion containing the breaker, A breaker unit in which a plug terminal receiving portion for fitting a plug terminal portion having the same shape as the plug terminal portion is provided on the inner side of the other end surface facing the one end surface side, and a plurality of the breaker units are detachable. A distribution board characterized by comprising unit mounting rails that can be mounted on. ブレーカと短幹線バーの接続をプラグ端子により行い、ブレーカ取付基台の係止具によりブレーカ取付基台とブレーカとを着脱自在とした請求項１に記載の分電盤。   The distribution board according to claim 1, wherein the breaker and the short trunk bar are connected to each other by a plug terminal, and the breaker mounting base and the breaker are detachable by a stopper of the breaker mounting base. ブレーカを収納したキャビネット部をブレーカ取付基台とカバーよりなるものとし、ブレーカの負荷側端子部が臨む取付基台の側縁に設けた側板部の端面と、該側板部の端面と当接するカバーの負荷側端子部が臨む側板部の端面との間にブレーカの負荷側電線の引き込み部を形成した請求項１又は２に記載の分電盤。   The cabinet part that houses the breaker is made up of a breaker mounting base and a cover, and the end face of the side plate provided on the side edge of the mounting base facing the load side terminal part of the breaker and the cover that contacts the end face of the side plate The distribution board according to claim 1 or 2, wherein a lead-in portion of the load side electric wire of the breaker is formed between the end surface of the side plate portion facing the load side terminal portion.
JP2005190187A 2005-06-29 2005-06-29 Distribution board Active JP4636608B2 (en)

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JP2007014095A (en) * 2005-06-29 2007-01-18 Nitto Electric Works Ltd Structure for leading wire into cabinet
JP2007300707A (en) * 2006-04-28 2007-11-15 Nitto Electric Works Ltd Self-standing distribution panel
JP2014029228A (en) * 2012-07-31 2014-02-13 Nitto Kogyo Co Ltd Panel heater
CN110676736A (en) * 2019-10-31 2020-01-10 苏师大半导体材料与设备研究院(邳州)有限公司 Method for conveniently replacing circuit breaker

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JP2007300707A (en) * 2006-04-28 2007-11-15 Nitto Electric Works Ltd Self-standing distribution panel
JP2014029228A (en) * 2012-07-31 2014-02-13 Nitto Kogyo Co Ltd Panel heater
CN110676736A (en) * 2019-10-31 2020-01-10 苏师大半导体材料与设备研究院(邳州)有限公司 Method for conveniently replacing circuit breaker

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