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JP3748828B2 - Plug-in busbar connection structure - Google Patents
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JP3748828B2 - Plug-in busbar connection structure - Google Patents

Plug-in busbar connection structure Download PDF

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Publication number
JP3748828B2
JP3748828B2 JP2002071960A JP2002071960A JP3748828B2 JP 3748828 B2 JP3748828 B2 JP 3748828B2 JP 2002071960 A JP2002071960 A JP 2002071960A JP 2002071960 A JP2002071960 A JP 2002071960A JP 3748828 B2 JP3748828 B2 JP 3748828B2
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JP
Japan
Prior art keywords
bus bar
connection
plug
terminal block
holding portion
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
JP2002071960A
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Japanese (ja)
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JP2003274520A (en
Inventor
裕史 松隈
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Nitto Kogyo Corp
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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 JP2002071960A priority Critical patent/JP3748828B2/en
Publication of JP2003274520A publication Critical patent/JP2003274520A/en
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Publication of JP3748828B2 publication Critical patent/JP3748828B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は、プラグイン式母線バーと主幹ブレーカに接続するためのリードバーや2次送り用接続バーとを接続するためのプラグイン式母線バーの接続構造に関するものである。
【0002】
【従来の技術】
従来、プラグイン式母線バーにおいて母線バーとリードバーとを接続するには、図11に示すように母線バー101の長さを下から上に向け順に短くして、各母線バー101の端部に形成した接続部102が階段状に上方から露呈するようにしてリードバー103を接続できるようにしたものであった。
【0003】
【発明が解決しようとする課題】
ところが、この従来のものにあっては、接続部102を母線バー101の長さを下から上に向け順に短くして、その端部に階段状に形成しているため、接続部の長手方向の長さが長くなり、そのため、このような接続部を形成した母線バーを使用した分電盤、配電盤が小型化するための障害となっていた。そのため、接続部全体の長さが短くすることのできるプラグイン式母線バーの接続構造が待望されていた。
【0004】
【課題を解決するための手段】
前記の待望に応えるためになされた本発明のプラグイン式母線バーの接続構造は、上下3段に水平に段積して取り付けたプラグイン式母線バーのうち上段に配置した母線バーの端部に直線方向の接続部を形成するとともに、他の中段及び下段の母線バーの端部に長手方向に対して相互に反対方向を向くように横方向に折曲させた接続部を形成し、また、前記上段に配置した母線バーの接続部に対応する上段用接続保持部を形成したうえ該上段用接続保持部の下方側部に前記中段の母線バーの接続部と下段の母線バーの接続部とに対応する中段用接続保持部と下段用接続保持部を互いに左右段違いに設けてなる端子ブロックに、上段用接続保持部の下側に中段の母線バー及び下段の母線バーのコーナー部が入り込むための空間部を設けたものを請求項1に係る発明とする。この請求項1の発明において、端子ブロックの底面に設けた弾性片を取付台に設けた係合孔に嵌合して、端子ブロックを各母線バーと取付台との間に保持させたたものを請求項2に記載の発明とする。
【0005】
【発明の実施の形態】
次に、本発明の好ましい実施の形態を示す。
1は取付台2に母線支持部3により上下3段に水平に段積して取り付けたプラグイン式母線バーである。この母線バー1のうち上段の母線バー11は端部に直線方向に接続部11aを形成し、中段及び下段の2本の母線バー12、13の端部に長手方向に対して相互に反対方向を向くように横方向に折曲させた接続部12a,13aを形成している。すなわち、中段となる母線バー12の接続部12aを右側に下段となる母線バー13の接続部13aを左側に折曲させて、全接続部11a、12a、13aが重なることなく取付台2の側方に左右略一列状に配置されている。
【0006】
4はプラグイン式母線バー1の各接続部11a、12a、13aにリードバーを接続するためのナットを保持するフェノール樹脂等の絶縁材よりなる端子ブロックであり、該端子ブロック4は前記取付台2に支持させる脚台部41の内側上部に前記直線方向の接続部11aに使用するナットを保持するナット保持凹部42a付きの上段用接続保持部42を形成するとともに該上段用接続保持部42下方側部に位置にさせて前記中段となる母線バー12の接続部12aと下段となる母線バー13の接続部13aに使用するナットを保持するナット保持凹部43a、44a付きの中段用接続保持部43と下段用接続保持部44を前記直線方向の接続部11aに対応する上段用接続保持部42に対して互いに左右に段違いに連設して形成している。また、上段用接続保持部42の下側には中段となる母線バー12と下段となる母線バー13のコーナー部が入り込むための空間部41bが形成されているうえ、直線方向に接続部11aを形成した母線バーに対応する接続保持部42に対して、母線バーの長手方向に対して相互に反対方向を向くように横方向に折曲させた接続部12a、13aの各接続保時部43、44を左右互いに段違いに設けてあるので端子ブロックを取付けた状態での母線バーの長手方向の長さを短くすることができる。
【0007】
また、前記上段用接続保持部42の両側には該上段用接続保持部42に保持される直線方向の接続部11aの両側を絶縁する絶縁隔壁42b、42bが設けられている。また、端子ブロック4の底面すなわち脚台部41の底面外側には弾性片41aが埋没可能に突設されており、該脚台部41を取付台2の側方から弾性片41aを取付台2に当接して埋没させたうえスライドさせて取付台2に設けた係止孔2aに係合させるとともに前記上段用接続保持部42、中段用接続保持部43及び下段用接続保持部44をプラグイン式母線バー1の各接続部11a、12a、13aの保持位置に位置させて端子ブロック4を取付台2とプラグイン式母線バー1との間に保持させている。
【0008】
さらに、前記各ナット保持凹部42a、43a、44aの中央下方にはボルト先端を逃がす筒孔部46が連設されている。そして、下段用接続保持部43及び中段用接続保持部のナット保持凹部44a,43aの各筒孔部46の先端を端子ブロック4の底面側より突出させて、該突出部が前記取付台2の側部から設けたU字形切欠凹部21に係合させて、端子ブロック4を取付台2に対してスライドして取り付ける際のガイド及び位置決めとしている。
【0009】
このように構成されたものは、プラグイン式母線バーのうち直線方向に接続部を形成した上段の母線バーの接続保持部に対して、母線バーの長手方向に対して相互に反対方向を向くように横方向に折り曲げて接続部を形成した中段及び下段の母線バーの各接続部に対応する接続保持部を左右互いに段違いに設けた端子ブロックとしたので、母線バーの長手方向の長さを従来の母線バーの階段状構造と比べて小さくすることができる。また、プラグイン式母線バー1の上段の母線バー11の端部に形成した直線方向の接続部11a、中段及び下段の母線バー12、13の端部に横方向に折曲させて形成した接続部12a、13aは重なることなく取付台2の側方に左右略一列状に配置されているうえ、各接続部11a、12a,13aは端子ブロック4がナットを保持しているので、各接続部11a、12a,13aに図8に示すように主幹ブレーカ6に接続するためのリードバー7を接続する場合には各接続部11a、12a,13aは上方から接続作業ができるものである。
【0010】
また、各接続部11a、12a,13aを保持する上段用接続保持部42、中段用接続保持部43及び下段用接続保持部44にはナット保持凹部42a、43a及び44aが設けられているので該ナット保持凹部42a、43a及び44aにナットを嵌合してリードバー7のボルト挿通孔と各接続部11a、12a,13aに設けたボルト挿通孔11b、12b、13bを挿通したボルトを螺合させてリードバー7を接続させることができるものである。
【0011】
また、プラグイン式母線バー1の各接続部11a、12a、13aは重なることなく取付台2の側方に左右略一列状に配置されているので、接続部11a,12a、13aが母線バー1の長手方向の長さを長くとらないので、このプラグイン式母線バー1を使用することにより分電盤、配電盤を小型することができる。さらに、端子ブロックの接続保持部が互いに段違いであるためリードバーを複雑な形状にしなくてもすむため、製造コストを引き下げることができる。なお、この実施形態では直線方向に接続部11aがわずかに突出した左右略一列状のものであるが、完全に一列のものとしてもよい。
【0012】
なお、中段及び下段の2本の母線バー12、13の端部に長手方向に対して相互に反対方向を向くように横方向に折曲させて形成した接続部12a,13aは、上段の母線バー11の端部に直線方向に形成した接続部11aのボルト挿通孔11bに該折曲部の外側縁部が掛らないように図8に示すように母線バー12、13の本体をそのまま折曲してもよいが、図9に示すように母線バー12、13の本体の折曲部の外側縁部となる一点鎖線で示す箇所を切欠すれば、直線方向に接続部11aがある母線バーの端部の接続部に設けた孔が内側に位置させることができるため、母線バー1の長さをより短くすることができ、分電盤、配電盤を小型化することができるものである。さらに端子ブロック4の上段用接続部42の下側に中段及び下段のコーナー部が入り込むための空間部41bを設けたため、端子ブロックを取付けた状態での母線バー1の長手方向の長さを短くすることができる。
【0013】
さらに、リードバー7を締め付けるボルト頭部の突出をおさえるため上段の母線バー11の接続部11aを下方に屈曲して低く形成した場合に、接続部11aの両側部分の絶縁距離を補う為に上段用接続保持部42の両側に該上段用接続保持部42に保持される直線方向の接続部11aの両側を絶縁する絶縁隔壁42b、42bが設けられているので、他の母線バー12、13及びリードバー7との絶縁を確保できるものである。なお、端子ブロック4をスライドさせて取付けた時、中段の母線バー12のコーナー部分が上段接続用保持部42の下側に設けた空間部41bに収納されるため、一段低く形成した母線バー11の接続部11aと中段の母線バー12の接続部12aとの絶縁を確保することができる。また、各母線バー11,12,13の接続部としてはリードバー側について説明したが、もう一方の端部の接続部である送り側も同一形状としてこれに対応する端子ブロックにより保持してよいことはもちろんである。なお、この実施形態では上段の母線バーに直線方向の接続部を設けて中段と下段の母線バーを折曲させているが、中段もしくは下段の母線バーに直線方向の接続部を設けて他の2段の母線バーを折曲させるようにして、対応するナットを保持する接続保持部を左右段違いに設けてもよい。
【0014】
【発明の効果】
以上説明したように、本発明のプラグイン式母線バーの接続構造は、直線方向に接続部を形成した母線バーの接続保持部に対して、母線バーの長手方向に対して相互に反対方向を向くように横方向に折曲させた接続部に対応する接続保持部を左右互いに段違いに設けた端子ブロックを設うえ、端子ブロックの上段用接続部の下側に中段及び下段のコーナー部が入り込むための空間部を設けたため、端子ブロックを取付けた状態での母線バーの長手方向の長さを短くすることができる。さらにプラグイン式母線バーの各接続部は重なることなく取付台の側方に左右略一列状に配置されることとなるので、接続部が母線バーの長手方向の長さを長くとらないので、このプラグイン式母線バーを使用することにより分電盤、配電盤を小型することができるものである。さらに、端子ブロックの接続保持部が互いに段違いであるため、母線バーに接続するリードバーの形状が簡単になり製造コストを下げることができる。
よって、本発明は従来のプラグイン式母線バーの接続構造の問題点を解決したもので、業界にもたらす益大なものである。
【図面の簡単な説明】
【図1】本発明の実施形態を分解して示す斜視図である。
【図2】本発明の実施形態に使用する端子ブロックを上方から示す斜視図である。
【図3】本発明の実施形態に使用する端子ブロックを下方から示す斜視図である。
【図4】本発明の実施形態を示す斜視図である。
【図5】本発明の実施形態を示す正面図である。
【図6】本発明の実施形態に使用する上段の母線バーを示す平面図である。
【図7】本発明の実施形態に使用する中段及び下段の母線バーを示す平面図である。
【図8】本発明の実施形態に使用する上段、中段及び下段の母線バーの接続部の関係を示す平面図である。
【図9】本発明の実施形態に使用する上段、中段及び下段の母線バーの接続部の関係を示す平面図である。
【図10】本発明のプラグイン式母線バーの接続構造を使用した分電盤を示す概略側面図である。
【図11】従来例のプラグイン式母線バーの接続構造を使用した分電盤を示す概略図であり、(A)は平面図、(B)は側面図である。
【符号の説明】
1 プラグイン式母線バー、11 上段の母線バー、11a 接続部、12 中段の母線バー、12a 接続部、13 下段の母線バー、13a 接続部、2 取付台、2a 係止孔、4 端子ブロック、41 脚台部、41a 弾性片、41b 空間部、42 上段用接続保持部、42a ナット保持凹部、42b 絶縁隔壁、43 中段用接続保持部、43a ナット保持凹部、44 下段用接続保持部、44a ナット保持凹部連結金具
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a plug-in bus bar connection structure for connecting a plug-in bus bar and a lead bar or secondary feed connection bar for connection to a main breaker.
[0002]
[Prior art]
Conventionally, in order to connect a bus bar and a lead bar in a plug-in bus bar, the length of the bus bar 101 is shortened in order from the bottom to the top as shown in FIG. The lead bar 103 can be connected in such a manner that the connecting portion 102 formed in the above is exposed in a stepped manner from above.
[0003]
[Problems to be solved by the invention]
However, in this conventional device, the length of the bus bar 101 is shortened in order from the bottom to the top, and the end of the connecting portion 102 is formed in a stepped shape. Therefore, the distribution board and the distribution board using the bus bar having such a connection portion have become an obstacle to miniaturization. Therefore, a connection structure for a plug-in bus bar that can shorten the entire length of the connecting portion has been desired.
[0004]
[Means for Solving the Problems]
The connection structure of the plug-in type bus bar of the present invention made to meet the above-mentioned long-awaited end is the end of the bus bar arranged in the upper stage among the plug-in type bus bars that are horizontally stacked in the upper and lower three stages. In addition, a straight connection portion is formed at the end of each of the other middle and lower bus bars, and a connection portion bent in a lateral direction so as to be opposite to each other in the longitudinal direction is formed. Forming an upper connection holding portion corresponding to a connection portion of the bus bar arranged in the upper stage, and connecting the middle bus bar connection portion and the lower bus bar connection portion to the lower side of the upper connection holding portion. A terminal block that has a middle connection holding portion and a lower connection holding portion corresponding to the right and left steps, and the corner portions of the middle bus bar and the lower bus bar enter the lower side of the upper connection holding portion. those having a space for And the invention according to Motomeko 1. In the first aspect of the invention, an elastic piece provided on the bottom surface of the terminal block is fitted into an engagement hole provided in the mounting base, and the terminal block is held between each bus bar and the mounting base. Is the invention described in claim 2 .
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Next, a preferred embodiment of the present invention will be shown.
Reference numeral 1 denotes a plug-in type bus bar that is mounted on the mounting base 2 by being stacked horizontally in three stages on the upper and lower sides by the bus support part 3. Of the bus bar 1, the upper bus bar 11 is formed with a connecting portion 11a in the linear direction at the end, and the ends of the middle and lower two bus bars 12 and 13 are opposite to each other in the longitudinal direction. The connection parts 12a and 13a bent in the horizontal direction so as to face are formed. That is, the connecting portion 12a of the middle bus bar 12 is bent to the right side and the connecting portion 13a of the lower bus bar 13 is bent to the left side so that all the connecting portions 11a, 12a, 13a do not overlap with each other. Are arranged in a substantially single line on the left and right.
[0006]
Reference numeral 4 denotes a terminal block made of an insulating material such as phenol resin for holding a nut for connecting a lead bar to each of the connecting portions 11a, 12a, 13a of the plug-in bus bar 1, and the terminal block 4 is formed of the mounting base. An upper connection holding portion 42 with a nut holding recess 42a for holding a nut used for the connecting portion 11a in the linear direction is formed on the inner upper side of the leg base portion 41 supported by the lower portion, and below the upper connection holding portion 42 Middle stage connection holding part 43 with nut holding recesses 43a, 44a for holding nuts used in the connection part 12a of the bus bar 12 as the middle stage and the connection part 13a of the bus bar 13 as the lower stage, positioned at the side. The lower connection holding portion 44 is formed to be connected to the upper connection holding portion 42 corresponding to the linear connection portion 11a in a stepwise manner on the left and right. In addition, a space 41b is formed below the upper connection holding portion 42 so that a corner portion of the middle bus bar 12 and the lower bus bar 13 enters, and the connection portion 11a is arranged in a linear direction. With respect to the connection holding portion 42 corresponding to the formed bus bar, the connection holding portions 43 of the connection portions 12a and 13a bent in the lateral direction so as to face opposite directions with respect to the longitudinal direction of the bus bar. 44 are provided on the left and right sides, so that the length of the bus bar in the longitudinal direction with the terminal block attached can be shortened.
[0007]
Insulating partition walls 42b and 42b are provided on both sides of the upper connection holding portion 42 to insulate both sides of the linear connection portion 11a held by the upper connection holding portion 42. In addition, an elastic piece 41 a is projected from the bottom surface of the terminal block 4, that is, outside the bottom surface of the leg base portion 41 so as to be buried, and the elastic piece 41 a is attached to the mounting base 2 from the side of the mounting base 2. The upper connection holding portion 42, the middle connection holding portion 43, and the lower connection holding portion 44 are plugged in while being brought into contact with and embedded in the mounting holes 2 and engaged with the locking holes 2a provided in the mounting base 2. The terminal block 4 is held between the mounting base 2 and the plug-in bus bar 1 by being positioned at the holding positions of the connecting portions 11a, 12a, and 13a of the bus bar 1.
[0008]
Further, a cylindrical hole portion 46 for allowing a bolt tip to escape is provided continuously below the center of each nut holding recess 42a, 43a, 44a. And the front-end | tip of each cylindrical hole part 46 of the nut holding recessed part 44a, 43a of the lower stage connection holding part 43 and the middle stage connection holding part protrudes from the bottom face side of the terminal block 4, and this protrusion part is the said mounting base 2 The terminal block 4 is engaged with a U-shaped notch recess 21 provided from the side, and is used as a guide and positioning when the terminal block 4 is slid and attached to the mounting base 2.
[0009]
In such a configuration, the plug holding bus bar is connected to the connection holding portion of the upper bus bar in which the connection portion is formed in the linear direction, and is directed in the opposite direction to the longitudinal direction of the bus bar. In this way, the connection holding portions corresponding to the connection portions of the middle and lower busbars that are bent in the horizontal direction are formed into terminal blocks that are provided on the left and right sides, so the length of the busbar in the longitudinal direction is Compared to the stepped structure of a conventional bus bar, the size can be reduced. Further, a connection portion 11a formed in the linear direction at the end portion of the upper bus bar 11 of the plug-in bus bar 1 and a connection formed by bending in the lateral direction at the end portions of the middle and lower bus bars 12, 13 Since the portions 12a and 13a are arranged in a substantially right and left side on the side of the mounting base 2 without overlapping, the connection portions 11a, 12a, and 13a are connected to each connection portion because the terminal block 4 holds a nut. When connecting the lead bar 7 for connecting to the main breaker 6 as shown in FIG. 8 to 11a, 12a, 13a, each connection part 11a, 12a, 13a can be connected from the top.
[0010]
Further, the upper connection holding part 42, the middle connection holding part 43 and the lower connection holding part 44 for holding the connection parts 11a, 12a and 13a are provided with nut holding concave parts 42a, 43a and 44a. The nuts are fitted into the nut holding recesses 42a, 43a and 44a, and the bolt insertion holes of the lead bar 7 and the bolts inserted through the bolt insertion holes 11b, 12b and 13b provided in the connection portions 11a, 12a and 13a are screwed together. Thus, the lead bar 7 can be connected.
[0011]
Further, since the connecting portions 11a, 12a, 13a of the plug-in bus bar 1 are arranged in a substantially right and left side on the side of the mounting base 2 without overlapping, the connecting portions 11a, 12a, 13a are connected to the bus bar 1. Therefore, the distribution board and the distribution board can be downsized by using the plug-in bus bar 1. Further, since the connection holding portions of the terminal block are different from each other, it is not necessary to make the lead bar in a complicated shape, so that the manufacturing cost can be reduced. In this embodiment, the connecting portions 11a slightly protrude in the straight line direction, but are substantially in a single line, but may be completely in a single line.
[0012]
The connecting portions 12a and 13a formed by bending the end portions of the two bus bars 12 and 13 in the middle and lower rows in the lateral direction so as to be opposite to each other in the longitudinal direction are the upper bus bars. As shown in FIG. 8, the main body of the bus bars 12 and 13 is folded as it is so that the outer edge of the bent portion does not hit the bolt insertion hole 11b of the connecting portion 11a formed in the linear direction at the end of the bar 11. As shown in FIG. 9, if the portion indicated by the alternate long and short dash line that is the outer edge of the bent portion of the main body of the bus bars 12 and 13 is cut out as shown in FIG. 9, the bus bar with the connecting portion 11 a in the linear direction Since the hole provided in the connection part of the end part of this can be located inside, the length of bus-bar 1 can be shortened, and a distribution board and a distribution board can be reduced in size. Furthermore, since the space 41b for the middle and lower corners to enter is provided below the upper connection portion 42 of the terminal block 4, the length in the longitudinal direction of the bus bar 1 with the terminal block attached is shortened. can do.
[0013]
Furthermore, when the connecting portion 11a of the upper bus bar 11 is bent downward and formed low in order to suppress the protrusion of the bolt head for tightening the lead bar 7, the upper step is used to compensate for the insulation distance of both side portions of the connecting portion 11a. Insulating partition walls 42b and 42b that insulate both sides of the linear connection portion 11a held by the upper connection holding portion 42 are provided on both sides of the upper connection holding portion 42, so that the other bus bar bars 12 and 13 and Insulation with the lead bar 7 can be ensured. When the terminal block 4 is slid and attached, the corner portion of the middle bus bar 12 is housed in the space 41b provided below the upper connection holding portion 42, so that the bus bar 11 formed one step lower is formed. Insulation between the connecting portion 11a and the connecting portion 12a of the middle bus bar 12 can be ensured. In addition, the lead bar side has been described as the connecting portion of each bus bar 11, 12, 13; however, the feeding side, which is the connecting portion at the other end, may be held in the same shape by a corresponding terminal block. Of course. In this embodiment, the upper and lower bus bars are provided with a linear connecting portion to bend the middle and lower bus bars, but the middle or lower bus bar is provided with a linear connecting portion and the other bus bars are bent. The connection holding portions for holding the corresponding nuts may be provided at the left and right steps so as to bend the two-stage bus bar.
[0014]
【The invention's effect】
As described above, the connection structure of the plug-in bus bar according to the present invention is such that the connection holding portion of the bus bar in which the connection portion is formed in the linear direction is opposite to the longitudinal direction of the bus bar. A terminal block with connection holding parts corresponding to the connection part bent in the horizontal direction so as to face is provided on the left and right sides, and the middle and lower corners enter below the upper connection part of the terminal block. Since the space portion is provided, the length in the longitudinal direction of the bus bar in the state where the terminal block is attached can be shortened. Furthermore, since each connection part of the plug-in bus bar is arranged in the left and right substantially in a row on the side of the mounting base without overlapping, the connection part does not take a long length in the longitudinal direction of the bus bar. By using this plug-in bus bar, the distribution board and the distribution board can be reduced in size. Further, since the connection holding portions of the terminal block are different from each other, the shape of the lead bar connected to the bus bar is simplified, and the manufacturing cost can be reduced.
Therefore, the present invention solves the problems of the conventional plug-in bus bar connection structure, and is a great advantage for the industry.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing an embodiment of the present invention.
FIG. 2 is a perspective view showing a terminal block used in the embodiment of the present invention from above.
FIG. 3 is a perspective view showing a terminal block used in the embodiment of the present invention from below.
FIG. 4 is a perspective view showing an embodiment of the present invention.
FIG. 5 is a front view showing an embodiment of the present invention.
FIG. 6 is a plan view showing an upper bus bar used in the embodiment of the present invention.
FIG. 7 is a plan view showing middle and lower bus bars used in the embodiment of the present invention.
FIG. 8 is a plan view showing the relationship between the connecting portions of the upper, middle and lower bus bars used in the embodiment of the present invention.
FIG. 9 is a plan view showing the relationship between the connection portions of the upper, middle and lower bus bars used in the embodiment of the present invention.
FIG. 10 is a schematic side view showing a distribution board using the plug-in bus bar connection structure of the present invention.
11A and 11B are schematic views showing a distribution board using a conventional plug-in bus bar connection structure, where FIG. 11A is a plan view and FIG. 11B is a side view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Plug-in type bus bar, 11 Upper bus bar, 11a Connection part, 12 Middle bus bar, 12a Connection part, 13 Lower bus bar, 13a Connection part, 2 Mounting base, 2a Locking hole, 4 Terminal block, 41 Leg base part, 41a Elastic piece, 41b Space part, 42 Upper connection holding part, 42a Nut holding recess, 42b Insulating partition wall, 43 Middle connection holding part, 43a Nut holding recess, 44 Lower connection holding part, 44a Nut Holding recess connection bracket

Claims (2)

上下3段に水平に段積して取り付けたプラグイン式母線バーのうち上段に配置した母線バーの端部に直線方向の接続部を形成するとともに、他の中段及び下段の母線バーの端部に長手方向に対して相互に反対方向を向くように横方向に折曲させた接続部を形成し、また、前記上段に配置した母線バーの接続部に対応する上段用接続保持部を形成したうえ該上段用接続保持部の下方側部に前記中段の母線バーの接続部と下段の母線バーの接続部とに対応する中段用接続保持部と下段用接続保持部を互いに左右段違いに設けてなる端子ブロックに、上段用接続保持部の下側に中段の母線バー及び下段の母線バーのコーナー部が入り込むための空間部を設けたことを特徴とするプラグイン式母線バーの接続構造 Of the plug-in bus bars that are mounted horizontally in three vertical stages, a straight connection is formed at the end of the bus bar arranged in the upper stage, and the ends of the other middle and lower bus bars The connecting portion bent in the lateral direction so as to face opposite directions to the longitudinal direction is formed, and the upper connection holding portion corresponding to the connecting portion of the bus bar arranged in the upper step is formed. In addition, a middle connection holding portion and a lower connection holding portion corresponding to the connection portion of the middle bus bar and the connection portion of the lower bus bar are provided on the lower side portion of the upper connection holding portion in the left and right steps. A plug-in type bus bar connection structure characterized in that a space portion is provided in the terminal block to be inserted into the middle bus bar and the corner portion of the lower bus bar below the upper connection holding portion. 端子ブロックの底面に設けた弾性片を取付台に設けた係合孔に嵌合して、端子ブロックを各母線バーと取付台との間に保持させた請求項1に記載のプラグイン式母線バーの接続構造 2. The plug-in bus bar according to claim 1, wherein an elastic piece provided on the bottom surface of the terminal block is fitted into an engagement hole provided in the mounting base, and the terminal block is held between each bus bar and the mounting base. Bar connection structure
JP2002071960A 2002-03-15 2002-03-15 Plug-in busbar connection structure Expired - Fee Related JP3748828B2 (en)

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JP2002071960A JP3748828B2 (en) 2002-03-15 2002-03-15 Plug-in busbar connection structure

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Application Number Priority Date Filing Date Title
JP2002071960A JP3748828B2 (en) 2002-03-15 2002-03-15 Plug-in busbar connection structure

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JP3748828B2 true JP3748828B2 (en) 2006-02-22

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4836249B2 (en) * 2006-04-21 2011-12-14 河村電器産業株式会社 Distribution board
DE102007051647B4 (en) * 2007-10-26 2009-12-10 Friedrich Göhringer Elektrotechnik GmbH A busbar assembly
JP6270618B2 (en) * 2014-05-14 2018-01-31 三菱電機株式会社 Connection conductor unit
EP4718648A1 (en) * 2024-09-28 2026-04-01 Vertiv Corporation An insulator for a circuit breaker

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