JP6270618B2 - Connection conductor unit - Google Patents
Connection conductor unit Download PDFInfo
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- JP6270618B2 JP6270618B2 JP2014100080A JP2014100080A JP6270618B2 JP 6270618 B2 JP6270618 B2 JP 6270618B2 JP 2014100080 A JP2014100080 A JP 2014100080A JP 2014100080 A JP2014100080 A JP 2014100080A JP 6270618 B2 JP6270618 B2 JP 6270618B2
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- 239000004020 conductor Substances 0.000 title claims description 80
- 239000002184 metal Substances 0.000 claims description 40
- 229910052751 metal Inorganic materials 0.000 claims description 40
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 15
- 230000005405 multipole Effects 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 230000018199 S phase Effects 0.000 description 60
- 229910001219 R-phase Inorganic materials 0.000 description 43
- 238000009826 distribution Methods 0.000 description 14
- 238000009413 insulation Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 230000010354 integration Effects 0.000 description 4
- 238000005219 brazing Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Patch Boards (AREA)
- Breakers (AREA)
- Distribution Board (AREA)
Description
この発明は、例えば分電盤内などに配置され、多極型回路遮断器と金属板導体とを接続する接続導体ユニットに関するものである。 The present invention relates to a connection conductor unit that is arranged, for example, in a distribution board and connects a multipolar circuit breaker and a metal plate conductor.
一般に、建物においては電灯回路やコンセント回路に給電するため、分電盤が設置される。分電盤は多数の負荷へ電力を分配する性質上、盤内には多極型回路遮断器の負荷側端子に接続された主回路となる金属板導体から多数分岐させ、その分岐点には、過電流に対する保護の観点から回路遮断器を設置する。電線や金属板導体を用いて分電盤の分岐回路を構成すると、主回路の金属板導体から分岐回路保護用の回路遮断器へ電線や金属板導体を接続する作業が多くなり、分電盤の製作に手間が掛るため、近年では主回路の金属板導体へ直接接続して分岐回路を構成できるプラグイン型の回路遮断器が登場している。（例えば、特許文献１） Generally, in a building, a distribution board is installed to supply power to an electric lamp circuit or an outlet circuit. Due to the nature of distributing power to a large number of loads, the distribution board has a number of branches from the metal plate conductor that is the main circuit connected to the load-side terminal of the multi-pole circuit breaker. In order to protect against overcurrent, install a circuit breaker. When the branch circuit of the distribution board is configured using electric wires and metal plate conductors, the work of connecting the wires and metal plate conductors from the main plate metal plate conductor to the circuit breaker for branch circuit protection increases. In recent years, plug-in type circuit breakers that can be connected directly to the metal plate conductor of the main circuit to form a branch circuit have appeared. (For example, Patent Document 1)
一般に多極型回路遮断器の負荷側端子は遮断器本体に対して横方向に配置されており、プラグイン型の回路遮断器の入力端子は特許文献１にも示されているように、遮断器本体に対して奥行方向に配置されている。このため、プラグイン型の回路遮断器を適用する場合には、Ｒ相，Ｓ相，Ｔ相（単相３線回路の場合はＲ相，Ｎ相，Ｔ相）それぞれの電流を通電するように接続された主回路の金属板導体を、分電盤の正面から見て奥行方向に規定の間隔で積み上げて敷設して、その金属板導体に回路遮断器のプラグ部を勘合させることで導通を確保する必要があり、横方向に配置されている多極型回路遮断器の負荷側端子と奥行方向に敷設されている金属板導体を電気的に接続するために、従来、各相専用に鉤状もしくはＬ字形状に加工された金属板による接続導体が用いられ、他相との絶縁を確保するために所定の空間距離を開けて敷設されるように構成されていた。そのため、最短距離で多極型回路遮断器と金属板導体を結ぶことができず、無駄なスペースを占有してしまうこととなり、ひいては分電盤の大型化を招くとともに製造コストが高くなるという課題があった。また、金属板導体ではなく電線にて接続を行うことも考えられるが、その場合には分電盤の多極型回路遮断器の定格電流を問題なく流せる太さの電線が必要となる。例えば定格電流１００Ａであれば、３８ｍｍ２程度の断面積を有する電線が必要であり、分電盤内のように小さなスペースに配線するには不向きである。 In general, the load-side terminal of the multipolar circuit breaker is arranged in the transverse direction with respect to the breaker body, and the input terminal of the plug-in type circuit breaker is a breaker as shown in Patent Document 1 as well. It is arranged in the depth direction with respect to the main body. For this reason, when a plug-in circuit breaker is applied, currents of R phase, S phase, and T phase (R phase, N phase, and T phase in the case of a single-phase three-wire circuit) are supplied. By connecting the metal plate conductors of the main circuit that are connected to to the circuit board in the depth direction as viewed from the front of the distribution board and laying them, the plug part of the circuit breaker is fitted to the metal plate conductors. In order to electrically connect the load-side terminal of the multi-pole circuit breaker arranged in the lateral direction and the metal plate conductor laid in the depth direction, A connection conductor made of a metal plate processed into a bowl shape or an L shape is used, and is configured to be laid at a predetermined spatial distance in order to ensure insulation from other phases. For this reason, the multipole circuit breaker and the metal plate conductor cannot be connected in the shortest distance, which occupies a useless space, leading to an increase in the size of the distribution board and an increase in manufacturing cost. was there. In addition, although it is conceivable to connect with an electric wire instead of a metal plate conductor, in that case, an electric wire having a thickness capable of flowing the rated current of the multipolar circuit breaker of the distribution board without any problem is required. For example, if the rated current is 100 A, an electric wire having a cross-sectional area of about 38 mm 2 is required, and it is not suitable for wiring in a small space such as in a distribution board.
この発明は以上のような課題を解決するためになされたもので、多極型回路遮断器と金属板導体とを接続するにあたり、最低限のスペースで電気的接続を確保することができる接続導体ユニットを提供することを目的とする。 The present invention has been made to solve the above-described problems, and is a connection conductor that can ensure electrical connection in a minimum space when connecting a multipole circuit breaker and a metal plate conductor. The purpose is to provide units.
この発明に係る接続導体ユニットは、多極型回路遮断器の横方向に配置された各相の負荷側端子にそれぞれ接続される前部端子と、分岐回路へ電力を供給する奥行方向に配置された各相の金属板導体に接続されるとともに前記前部端子と電気的にそれぞれ接続された後部端子と、前記前部端子と前記後部端子を所定の位置に固定するとともに前記前部端子と前記後部端子の固定部および電気的接続部を取囲んで絶縁する樹脂製の絶縁台を備えた接続導体ユニットであって、奥行方向に積み重ね可能に分割して形成された前記絶縁台の分割部分に相ごとの前記前部端子および前記後部端子が取付けられて相ごとに構成された相接続ユニットを有し、相ごとの前記相接続ユニットは奥行方向に積み重ねられることによって一体化されていることを特徴とするものである。 The connection conductor unit according to the present invention is disposed in a depth direction for supplying power to a branch circuit and a front terminal respectively connected to a load side terminal of each phase disposed in a lateral direction of the multipolar circuit breaker. A rear terminal electrically connected to the front terminal, and the front terminal and the rear terminal are fixed to a predetermined position, and the front terminal and the A connecting conductor unit including a resin insulating base that surrounds and insulates the fixed portion of the rear terminal and the electrical connecting portion, and is divided into the divided portions of the insulating base formed so as to be stacked in the depth direction. has a phase connection unit said front terminals and said rear terminals of each phase is configured for each attached phase, said phase connection unit of each phase are integrated by being stacked in the depth direction It is an butterfly.
この発明の接続導体ユニットによれば、前部端子と後部端子を所定の位置に固定するとともに前記前部端子と前記後部端子の固定部および電気的接続部を取囲んで絶縁する樹脂製の絶縁台を、奥行方向に積み重ね可能に分割して形成して分割部分に相ごとの前記前部端子および前記後部端子が取付けられて相ごとに構成された相接続ユニットを有し、相ごとの前記相接続ユニットは奥行方向に積み重ねられることによって一体化されているため、余分なスペースを取ることなく最低限のスペースで電気的接続を確保することができる接続導体ユニットを得ることができる効果がある。
According to the connection conductor unit of the present invention, the resin-made insulation that fixes the front terminal and the rear terminal at a predetermined position and surrounds and fixes the front terminal and the rear terminal fixing part and the electrical connection part. The base is divided and formed so as to be stackable in the depth direction, and the front terminal and the rear terminal for each phase are attached to the divided part, and the phase connection unit is configured for each phase. Since the phase connection units are integrated by being stacked in the depth direction, there is an effect that it is possible to obtain a connection conductor unit that can ensure electrical connection in a minimum space without taking extra space. .
以下、この発明の実施の形態について説明するが、各図において同一、または相当部分については同一符号を付して説明する。
実施の形態１．
図１はこの発明の実施の形態１における接続導体ユニットの設置状態を示す正面図、図２はこの発明の実施の形態１における接続導体ユニットの設置状態を示す側面図、図３はこの発明の実施の形態１における接続導体ユニットの概略構成を示す後部端子方向から見た斜視図、図４はこの発明の実施の形態１における接続導体ユニットの概略構成を示す前部端子方向から見た斜視図、図５はこの発明の実施の形態１における接続導体ユニットのＴ相接続ユニットを示す斜視図、図６はこの発明の実施の形態１における接続導体ユニットのＳ相接続ユニットを示す斜視図、図７はこの発明の実施の形態１における接続導体ユニットのＲ相接続ユニットを示す斜視図、図８はこの発明の実施の形態１における接続導体ユニットのＴ相接続ユニットにＳ相接続ユニットを一体化した状態を示す斜視図、図９はこの発明の実施の形態１における接続導体ユニットのＴ相とＳ相およびＲ相接続ユニットを一体化した状態を示す斜視図である。
Hereinafter, embodiments of the present invention will be described. In the drawings, the same or corresponding parts will be described with the same reference numerals.
Embodiment 1 FIG.
1 is a front view showing an installation state of a connection conductor unit according to Embodiment 1 of the present invention, FIG. 2 is a side view showing an installation state of the connection conductor unit according to Embodiment 1 of the present invention, and FIG. FIG. 4 is a perspective view seen from the rear terminal direction showing the schematic configuration of the connection conductor unit in the first embodiment, and FIG. 4 is a perspective view seen from the front terminal direction showing the schematic configuration of the connection conductor unit in the first embodiment of the present invention. 5 is a perspective view showing a T-phase connection unit of the connection conductor unit according to Embodiment 1 of the present invention. FIG. 6 is a perspective view showing an S-phase connection unit of the connection conductor unit according to Embodiment 1 of the present invention. 7 is a perspective view showing an R-phase connection unit of the connection conductor unit according to Embodiment 1 of the present invention, and FIG. 8 is a T-phase connection unit of the connection conductor unit according to Embodiment 1 of the present invention. 9 is a perspective view showing a state in which the S-phase connection unit is integrated, and FIG. 9 is a perspective view showing a state in which the T-phase, S-phase, and R-phase connection unit of the connection conductor unit in Embodiment 1 of the present invention are integrated. .
図１および図２において、多極型回路遮断器１００のＴ相負荷側端子１１０とＳ相負荷側端子１２０およびＲ相負荷側端子１３０に、接続導体ユニット２００が接続され、接続導体ユニット２００を介してＴ相金属板導体３１０とＳ相金属板導体３２０およびＲ相金属板導体３３０が接続されている。Ｔ相金属板導体３１０とＳ相金属板導体３２０およびＲ相金属板導体３３０は既定の間隔を空けつつ、分電盤を正面から見た場合における奥行き方向に積み上げられるように敷設されている。 1 and 2, the connection conductor unit 200 is connected to the T-phase load side terminal 110, the S-phase load side terminal 120, and the R-phase load side terminal 130 of the multipolar circuit breaker 100. The T-phase metal plate conductor 310, the S-phase metal plate conductor 320, and the R-phase metal plate conductor 330 are connected to each other. The T-phase metal plate conductor 310, the S-phase metal plate conductor 320, and the R-phase metal plate conductor 330 are laid so as to be stacked in the depth direction when the distribution board is viewed from the front, with a predetermined interval.
このように、接続導体ユニット２００を用いることで、分電盤を正面から見た場合において、多極型回路遮断器１００の横方向に配置されているＴ相負荷側端子１１０とＳ相負荷側端子１２０およびＲ相負荷側端子１３０が、奥行き方向に積み上げられるように敷設されているＴ相金属板導体３１０とＳ相金属板導体３２０およびＲ相金属板導体３３０にそれぞれ電気的に接続される。なお、接続導体ユニット２００の詳細構成は後で説明するが、Ｔ相金属板導体３１０とＳ相金属板導体３２０およびＲ相金属板導体３３０と、接続導体ユニット２００のＴ相後部端子２１２とＳ相後部端子２２２およびＲ相後部端子２３２とのそれぞれの接続部は、分電盤の正面方向から見て重ならないように配置され、全ての接続ボルト４００が目視できるように配置されている。 Thus, by using the connection conductor unit 200, when the distribution board is viewed from the front, the T-phase load side terminal 110 and the S-phase load side arranged in the lateral direction of the multipolar circuit breaker 100 are used. Terminal 120 and R-phase load side terminal 130 are electrically connected to T-phase metal plate conductor 310, S-phase metal plate conductor 320 and R-phase metal plate conductor 330 laid so as to be stacked in the depth direction, respectively. . Although the detailed configuration of the connection conductor unit 200 will be described later, the T-phase metal plate conductor 310, the S-phase metal plate conductor 320, the R-phase metal plate conductor 330, the T-phase rear terminal 212 of the connection conductor unit 200, and the S The respective connecting portions of the phase rear terminal 222 and the R phase rear terminal 232 are arranged so as not to overlap when viewed from the front direction of the distribution board, and are arranged so that all the connecting bolts 400 can be seen.
次に、接続導体ユニット２００の構成について説明する。図３および図４において、接続導体ユニット２００は、後で詳細構成を説明するＴ相接続ユニット２１０とＳ相接続ユニット２２０とＲ相接続ユニット２３０および天面蓋２４０で構成されており、組み合わせることによって一体化されている。Ｔ相接続ユニット２１０には、多極型回路遮断器１００のＴ相負荷側端子１１０に接続するためのＴ相前部端子２１１と、Ｔ相金属板導体３１０に接続するためのＴ相後部端子２１２が突出するように設けられている。 Next, the configuration of the connection conductor unit 200 will be described. 3 and 4, the connection conductor unit 200 includes a T-phase connection unit 210, an S-phase connection unit 220, an R-phase connection unit 230, and a top cover 240, which will be described in detail later. It is integrated by. The T-phase connection unit 210 includes a T-phase front terminal 211 for connection to the T-phase load side terminal 110 of the multipolar circuit breaker 100 and a T-phase rear terminal for connection to the T-phase metal plate conductor 310. 212 is provided so as to protrude.
同様に、Ｓ相接続ユニット２２０には、多極型回路遮断器１００のＳ相負荷側端子１２０に接続するためのＳ相前部端子２２１と、Ｓ相金属板導体３２０に接続するためのＳ相後部端子２２２が設けられており、Ｒ相接続ユニット２３０には、多極型回路遮断器１００のＲ相負荷側端子１３０に接続するためのＲ相前部端子２３１と、Ｒ相金属板導体３３０に接続するためのＲ相後部端子２３２が突出するように設けられている。天面蓋２４０は、Ｒ相接続ユニット２３０に組立ネジ２４６を用いて取付けられ一体化されている。 Similarly, the S-phase connection unit 220 includes an S-phase front terminal 221 for connecting to the S-phase load side terminal 120 of the multipolar circuit breaker 100 and an S-phase for connecting to the S-phase metal plate conductor 320. A phase rear terminal 222 is provided, and the R phase connection unit 230 includes an R phase front terminal 231 for connection to the R phase load side terminal 130 of the multipolar circuit breaker 100, and an R phase metal plate conductor. An R-phase rear terminal 232 for connection to 330 is provided so as to protrude. The top cover 240 is attached to and integrated with the R-phase connection unit 230 using assembly screws 246.
Ｔ相接続ユニット２１０の詳細構成について、図５にもとづき説明する。Ｔ相接続ユニット２１０は、Ｔ相前部端子２１１とＴ相後部端子２１２が、樹脂成型品であるＴ相絶縁台２１３に端子固定ネジ２１５によって固定されている。また、Ｔ相前部端子２１１とＴ相後部端子２１２は、Ｔ相可とう銅撚り線２１４が溶接またはロー付によって取り付けられることにより電気的に接続されている。Ｔ相可とう銅撚り線２１４は柔軟性が高く狭い空間へ屈曲させつつ配置することに適しており、Ｔ相前部端子２１１とＴ相後部端子２１２の間を最小のスペースで接続できる。Ｔ相前部端子２１１とＴ相後部端子２１２の位置は、多極型回路遮断器１００のＴ相負荷側端子１１０およびＴ相金属板導体３１０とを接続するのに便利である位置となるよう配置されている。多極型回路遮断器１００のＴ相負荷側端子１１０との接続部位置のＴ相前部端子２１１にはネジを通すための穴が設けられており、Ｔ相金属板導体３１０との接続部位置のＴ相後部端子２１２には接続ボルト４００を取付けるネジ穴がタッピング加工されている。 A detailed configuration of the T-phase connection unit 210 will be described with reference to FIG. In the T-phase connection unit 210, a T-phase front terminal 211 and a T-phase rear terminal 212 are fixed to a T-phase insulating base 213, which is a resin molded product, by terminal fixing screws 215. The T-phase front terminal 211 and the T-phase rear terminal 212 are electrically connected by attaching a T-phase flexible copper stranded wire 214 by welding or brazing. The T-phase flexible copper stranded wire 214 is flexible and suitable for being arranged while being bent into a narrow space, and can connect the T-phase front terminal 211 and the T-phase rear terminal 212 with a minimum space. The positions of the T-phase front terminal 211 and the T-phase rear terminal 212 are convenient positions for connecting the T-phase load side terminal 110 and the T-phase metal plate conductor 310 of the multipolar circuit breaker 100. Has been placed. The T-phase front terminal 211 at the position where the multipolar circuit breaker 100 is connected to the T-phase load side terminal 110 is provided with a hole for allowing a screw to pass therethrough. A screw hole for attaching the connecting bolt 400 is tapped in the T-phase rear terminal 212 at the position.
同様に、Ｓ相接続ユニット２２０の詳細構成について、図６にもとづき説明する。Ｓ相接続ユニット２２０は、Ｓ相前部端子２２１とＳ相後部端子２２２が、樹脂成型品であるＳ相絶縁台２２３に端子固定ネジ２２５によって固定されている。また、Ｓ相前部端子２２１とＳ相後部端子２２２は、Ｓ相可とう銅撚り線２２４が溶接またはロー付によって取り付けられることにより電気的に接続されている。Ｓ相可とう銅撚り線２２４は柔軟性が高く狭い空間へ屈曲させつつ配置することに適しており、Ｓ相前部端子２２１とＳ相後部端子２２２の間を最小のスペースで接続できる。Ｓ相前部端子２２１とＳ相後部端子２２２の位置は、多極型回路遮断器１００のＳ相負荷側端子１２０およびＳ相金属板導体３２０とを接続するのに便利である位置となるよう配置されている。多極型回路遮断器１００のＳ相負荷側端子１２０との接続部位置のＳ相前部端子２２１にはネジを通すための穴が設けられており、Ｓ相金属板導体３２０との接続部位置のＳ相後部端子２２２には接続ボルト４００を取付けるネジ穴がタッピング加工されている。Ｓ相絶縁台２２３は組立ネジ２２６によってＴ相絶縁台２１３に取り付けられる。 Similarly, the detailed configuration of the S-phase connection unit 220 will be described with reference to FIG. In the S-phase connection unit 220, an S-phase front terminal 221 and an S-phase rear terminal 222 are fixed to a S-phase insulating base 223, which is a resin molded product, by terminal fixing screws 225. The S-phase front terminal 221 and the S-phase rear terminal 222 are electrically connected by attaching an S-phase flexible copper stranded wire 224 by welding or brazing. The S-phase flexible copper stranded wire 224 is flexible and suitable for being arranged in a narrow space, and can connect the S-phase front terminal 221 and the S-phase rear terminal 222 with a minimum space. The positions of the S-phase front terminal 221 and the S-phase rear terminal 222 are positions that are convenient for connecting the S-phase load-side terminal 120 and the S-phase metal plate conductor 320 of the multipolar circuit breaker 100. Has been placed. The S-phase front terminal 221 at the position where the multi-pole circuit breaker 100 is connected to the S-phase load side terminal 120 is provided with a hole for a screw to pass therethrough, and the connection portion with the S-phase metal plate conductor 320. A screw hole for attaching the connection bolt 400 is tapped in the S-phase rear terminal 222 at the position. The S-phase insulating base 223 is attached to the T-phase insulating base 213 with an assembly screw 226.
同様に、Ｒ相接続ユニット２３０の詳細構成について、図７にもとづき説明する。Ｒ相接続ユニット２３０は、Ｒ相前部端子２３１とＲ相後部端子２３２が、樹脂成型品であるＲ相絶縁台２３３に端子固定ネジ２３５によって固定されている。また、Ｒ相前部端子２３１とＲ相後部端子２３２は、Ｒ相可とう銅撚り線２３４が溶接またはロー付によって取り付けられることにより電気的に接続されている。Ｒ相可とう銅撚り線２３４は柔軟性が高く狭い空間へ屈曲させつつ配置することに適しており、Ｒ相前部端子２３１とＲ相後部端子２３２の間を最小のスペースで接続できる。Ｒ相前部端子２３１とＲ相後部端子２３２の位置は、多極型回路遮断器１００のＲ相負荷側端子１３０およびＲ相金属板導体３３０とを接続するのに便利である位置となるよう配置されている。多極型回路遮断器１００のＲ相負荷側端子１３０との接続部位置のＲ相前部端子２３１にはネジを通すための穴が設けられており、Ｒ相金属板導体３３０との接続部位置のＲ相後部端子２３２には接続ボルト４００を取付けるネジ穴がタッピング加工されている。Ｒ相絶縁台２３３は組立ネジ２３６によってＳ相絶縁台２２３に取り付けられる。 Similarly, the detailed configuration of the R-phase connection unit 230 will be described with reference to FIG. In the R-phase connection unit 230, an R-phase front terminal 231 and an R-phase rear terminal 232 are fixed to an R-phase insulating base 233, which is a resin molded product, by terminal fixing screws 235. The R-phase front terminal 231 and the R-phase rear terminal 232 are electrically connected by attaching an R-phase flexible copper stranded wire 234 by welding or brazing. The R-phase flexible copper stranded wire 234 has high flexibility and is suitable for being arranged in a narrow space, and can connect the R-phase front terminal 231 and the R-phase rear terminal 232 with a minimum space. The positions of the R-phase front terminal 231 and the R-phase rear terminal 232 are convenient positions for connecting the R-phase load side terminal 130 and the R-phase metal plate conductor 330 of the multipolar circuit breaker 100. Has been placed. The R-phase front terminal 231 at the position where the multi-pole circuit breaker 100 is connected to the R-phase load side terminal 130 is provided with a hole for a screw to pass therethrough, and the connection portion with the R-phase metal plate conductor 330 A screw hole for attaching the connection bolt 400 is tapped in the R-phase rear terminal 232 at the position. The R-phase insulating base 233 is attached to the S-phase insulating base 223 by an assembly screw 236.
図８はＴ相接続ユニット２１０とＳ相接続ユニット２２０を組み合わせて組立ネジ２２６にて固定した状態を示している。Ｔ相接続ユニット２１０に蓋をするようにＳ相接続ユニット２２０のＳ相絶縁台２２３が形成されていることで、高い組立性を確保すると同時に、Ｔ相接続ユニット２１０の電気的接続部であるＴ相可とう銅撚り線２１４およびＴ相前部端子２１１とＴ相後部端子２１２の固定部に取り付けられた端子固定ネジ２１５を、Ｔ相絶縁台２１３とＳ相絶縁台２２３で取囲んで絶縁している。また、Ｓ相後部端子２２２は図８の下側方向にあるＴ相後部端子２１２を迂回するＬ字形状に形成されており、図８に示すように組み合わせた状態でも上側方向からＴ相後部端子２１２が見える状態となっている。 FIG. 8 shows a state in which the T-phase connection unit 210 and the S-phase connection unit 220 are combined and fixed with the assembly screws 226. The S-phase insulation base 223 of the S-phase connection unit 220 is formed so as to cover the T-phase connection unit 210, thereby ensuring high assemblability and at the same time being an electrical connection portion of the T-phase connection unit 210. The terminal fixing screw 215 attached to the fixing portion of the T-phase flexible copper stranded wire 214 and the T-phase front terminal 211 and the T-phase rear terminal 212 is surrounded by the T-phase insulating base 213 and the S-phase insulating base 223 for insulation. doing. Further, the S-phase rear terminal 222 is formed in an L shape that bypasses the T-phase rear terminal 212 in the lower direction of FIG. 8, and the T-phase rear terminal is also viewed from the upper side in the combined state as shown in FIG. 8. 212 is visible.
図９はＴ相接続ユニット２１０とＳ相接続ユニット２２０およびＲ相接続ユニット２３０を組み合わせた状態を示している。Ｓ相接続ユニット２２０に蓋をするようにＲ相接続ユニット２３０のＲ相絶縁台２３３が形成されていることで、高い組立性を確保すると同時に、Ｓ相接続ユニット２２０の電気的接続部であるＳ相可とう銅撚り線２２４およびＳ相前部端子２２１とＳ相後部端子２２２の固定部に取り付けられた端子固定ネジ２２５を、Ｓ相絶縁台２２３とＲ相絶縁台２３３で取囲んで絶縁している。また、Ｒ相後部端子２３２は図９の下側方向にあるＴ相後部端子２１２とＳ相後部端子２２２を迂回するＬ字形状に形成されており、組み合わせた状態でも上側方向からＴ相後部端子２１２とＳ相後部端子２２２が見える状態となっている。 FIG. 9 shows a state in which the T-phase connection unit 210, the S-phase connection unit 220, and the R-phase connection unit 230 are combined. The R-phase insulation base 233 of the R-phase connection unit 230 is formed so as to cover the S-phase connection unit 220, so that high assemblability is ensured and at the same time an electrical connection portion of the S-phase connection unit 220. The S-phase flexible copper stranded wire 224 and the terminal fixing screw 225 attached to the fixing portion of the S-phase front terminal 221 and the S-phase rear terminal 222 are surrounded by the S-phase insulating base 223 and the R-phase insulating base 233 for insulation. doing. Further, the R-phase rear terminal 232 is formed in an L-shape that bypasses the T-phase rear terminal 212 and the S-phase rear terminal 222 in the lower direction of FIG. 212 and S-phase rear terminal 222 are visible.
最後に、Ｒ相接続ユニット２３０に蓋をするように樹脂成型された天面蓋２４０が組立ネジ２４６で取り付けられることにより、図３および図４で説明した一体化された接続導体ユニット２００が構成される。この状態では、Ｒ相接続ユニット２３０の電気的接続部であるＲ相可とう銅撚り線２３４およびＲ相前部端子２３１とＲ相後部端子２３２の固定部に取り付けられた端子固定ネジ２３５を、Ｒ相絶縁台２３３と天面蓋２４０で取囲んで絶縁している。 Finally, a top cover 240 molded with resin so as to cover the R-phase connection unit 230 is attached with an assembly screw 246, so that the integrated connection conductor unit 200 described with reference to FIGS. Is done. In this state, the R-phase flexible copper stranded wire 234 which is an electrical connection portion of the R-phase connection unit 230 and the terminal fixing screw 235 attached to the fixing portion of the R-phase front terminal 231 and the R-phase rear terminal 232, The R-phase insulating base 233 and the top cover 240 are surrounded and insulated.
以上のように接続導体ユニット２００を構成することにより、多極型回路遮断器１００の横方向に配置された各相の負荷側端子と、分電盤の正面から見て奥行方向に配置された各相の金属板導体を、接続導体ユニット２００によって最低限のスペースで電気的に接続することが可能となり、分電盤の内部スペースを有効活用できるため、分電盤の小型化が可能となる。
また、各相の絶縁台によって可とう銅撚り線による電気的接続部を取囲んで絶縁しているため、可とう銅撚り線同士が接触することによる相間短絡事故を防ぐことができる。
さらに、金属板導体と後部端子との接続部は、所定方向から全て目視可能に配置されているため、ボルトの緩みの確認や、接続作業が容易となる。
By configuring the connection conductor unit 200 as described above, the load-side terminals of the phases arranged in the lateral direction of the multipolar circuit breaker 100 and the depth direction as viewed from the front of the distribution board are arranged. The metal plate conductors of each phase can be electrically connected with a minimum space by the connecting conductor unit 200, and the internal space of the distribution board can be used effectively, so the distribution board can be downsized. .
Moreover, since the electrical connection part by a flexible copper strand wire is surrounded and insulated by the insulation stand of each phase, the short circuit accident between phases by a flexible copper strand wire contacting can be prevented.
Furthermore, since all the connection portions between the metal plate conductor and the rear terminal are arranged so as to be visible from a predetermined direction, it is easy to check the looseness of the bolts and to perform the connection work.
なお、上記実施の形態の説明では、各相の前部端子および後部端子の固定方法として、端子固定ネジを端子側から各相の絶縁台にねじ込んで挿入することによって各端子を固定する場合について説明したが、各端子の固定方法はこれに限定されるものではなく、例えば、各端子にネジ穴加工をして絶縁台の裏側からねじ止め固定するなど、どのような固定方法であってもよい。また、各相の接続ユニットおよび天面蓋の一体化方法として、組立ネジを使用して取付ける場合について説明したが、各接続ユニットの一体化方法はこれに限定されるものではなく、例えば、各相の絶縁台および天面蓋の形状を工夫することによって、差込み係止するパッチン止めによる一体化方法を採用するなど、どのような一体化方法であってもよい。 In the description of the above embodiment, as a method of fixing the front terminal and the rear terminal of each phase, a case where each terminal is fixed by screwing a terminal fixing screw into the insulating base of each phase from the terminal side and inserting it. Although explained, the fixing method of each terminal is not limited to this, for example, any fixing method such as screwing into each terminal and fixing with screws from the back side of the insulating base. Good. In addition, as an integration method of each phase connection unit and the top cover, the case of mounting using assembly screws has been described, but the integration method of each connection unit is not limited to this, for example, each Any integration method may be used, such as adopting an integration method by patching and locking by inserting and locking by devising the shapes of the phase insulating base and the top cover.
なお、この発明は、その発明の範囲内において実施の形態を自由に組み合わせたり、実施の形態を適宜、変形、省略することが可能である。 In the present invention, the embodiments can be freely combined within the scope of the invention, and the embodiments can be appropriately modified and omitted.
１００ 多極型回路遮断器、１１０ Ｔ相負荷側端子、１２０ Ｓ相負荷側端子、１３０ Ｒ相負荷側端子、２００ 接続導体ユニット、２１０ Ｔ相接続ユニット、２１１ Ｔ相前部端子、２１２ Ｔ相後部端子、２１３ Ｔ相絶縁台、２１４ Ｔ相可とう銅撚り線、２１５ 端子固定ネジ、２２０ Ｓ相接続ユニット、２２１ Ｓ相前部端子、２２２ Ｓ相後部端子、２２３ Ｓ相絶縁台、２２４ Ｓ相可とう銅撚り線、２２５ 端子固定ネジ、２２６ 組立ネジ、２３０ Ｒ相接続ユニット、２３１ Ｒ相前部端子、２３２ Ｒ相後部端子、２３３ Ｒ相絶縁台、２３４ Ｒ相可とう銅撚り線、２３５ 端子固定ネジ、２３６ 組立ネジ、２４０ 天面蓋、２４６ 組立ネジ、３１０ Ｔ相金属板導体、３２０ Ｓ相金属板導体、３３０ Ｒ相金属板導体、４００ 接続ボルト 100 multi-pole circuit breaker, 110 T-phase load side terminal, 120 S-phase load side terminal, 130 R-phase load side terminal, 200 connection conductor unit, 210 T-phase connection unit, 211 T-phase front terminal, 212 T-phase Rear terminal, 213 T-phase insulation base, 214 T-phase flexible copper stranded wire, 215 terminal fixing screw, 220 S-phase connection unit, 221 S-phase front terminal, 222 S-phase rear terminal, 223 S-phase insulation base, 224 S Compatible copper stranded wire, 225 terminal fixing screw, 226 assembly screw, 230 R phase connection unit, 231 R phase front terminal, 232 R phase rear terminal, 233 R phase insulation base, 234 R phase flexible copper stranded wire, 235 Terminal fixing screw, 236 assembly screw, 240 top cover, 246 assembly screw, 310 T phase metal plate conductor, 320 S phase metal plate conductor, 330 R phase metal plate conductor, 00 connecting bolt
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| CN109001586B (en) * | 2016-01-18 | 2020-07-17 | 无锡市埃克威电气有限公司 | Polarity detection method for current transformer |
| KR101890684B1 (en) | 2016-12-30 | 2018-08-22 | 엘에스산전 주식회사 | Molded Case Circuit Breaker for DC |
| KR20180094413A (en) | 2017-02-15 | 2018-08-23 | 엘에스산전 주식회사 | Circuit Breaker for DC |
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| JP3489731B2 (en) * | 2000-04-06 | 2004-01-26 | 富士電機ホールディングス株式会社 | Distribution board connection conductor device |
| JP2002142314A (en) * | 2000-11-02 | 2002-05-17 | Fuji Electric Co Ltd | Connection conductor device of panelboard |
| JP3748828B2 (en) * | 2002-03-15 | 2006-02-22 | 日東工業株式会社 | Plug-in busbar connection structure |
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