JP5156049B2 - Terminal block and electrical equipment storage box equipped with the terminal block - Google Patents

Terminal block and electrical equipment storage box equipped with the terminal block Download PDF

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JP5156049B2
JP5156049B2 JP2010102484A JP2010102484A JP5156049B2 JP 5156049 B2 JP5156049 B2 JP 5156049B2 JP 2010102484 A JP2010102484 A JP 2010102484A JP 2010102484 A JP2010102484 A JP 2010102484A JP 5156049 B2 JP5156049 B2 JP 5156049B2
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side connection
terminal block
terminal
partition wall
connection part
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JP2011233361A (en
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篤志 中本
卓也 香川
嘉彦 佐野
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Panasonic Eco Solutions Switchgear Devices Co Ltd
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Description

本発明は、施工時に配線作業が行われる端子台およびこの端子台を備えた電気機器収納箱に関するものである。   The present invention relates to a terminal block on which wiring work is performed at the time of construction and an electric equipment storage box including the terminal block.

従来、分電盤、制御盤等の電気機器収納箱には、内部に収納した電気機器からの電線（内部電線）と、外部からの電線（外部電線）とを中継する端子台が備えられている（例えば、特許文献１参照）。このような端子台では、電気機器収納箱の製造業者が、電気機器収納箱内の電気機器からの内部電線を接続する。一方、外部電線の接続は、電気機器収納箱を現場に設置した後に、現場の施工業者が行う。   Conventionally, electrical equipment storage boxes such as distribution boards and control panels have been equipped with terminal blocks that relay electrical wires (internal wires) from electrical equipment housed inside and external wires (external wires). (For example, refer to Patent Document 1). In such a terminal block, the manufacturer of the electrical equipment storage box connects the internal electric wires from the electrical equipment in the electrical equipment storage box. On the other hand, the external electric wire is connected by the construction contractor at the site after the electrical equipment storage box is installed at the site.

特開２００５−６９６３８号公報JP 2005-69638 A

上記のように内部電線と外部電線が接続される端子台は、内部電線を接続した状態で出荷され、現場では外部電線の接続のみを行う。しかし、現場の施工業者が、電気機器収納箱内に外部電線を接続する際に、接続箇所がわからず、誤って内部電線の接続を変更する虞があり、誤配線の不具合が発生しやすいという課題があった。   The terminal block to which the internal electric wire and the external electric wire are connected as described above is shipped with the internal electric wire connected, and only the external electric wire is connected on site. However, when an on-site contractor connects an external electric wire in the electrical equipment storage box, the connection location is not known, and there is a possibility that the connection of the internal electric wire will be accidentally changed, and it is easy to cause a problem of miswiring. There was a problem.

本発明は、上記事由に鑑みてなされたものであり、その目的は、現場の施工業者が誤って内部電線の接続を変更することを抑制し、誤配線の不具合を低減させることができる端子台およびこの端子台を備えた電気機器収納箱を提供することにある。   The present invention has been made in view of the above-mentioned reasons, and its purpose is to prevent a site contractor from changing the connection of an internal wire by mistake, and to reduce a problem of erroneous wiring. And it is providing the electrical equipment storage box provided with this terminal block.

本発明の端子台は、電気機器が収納された電気機器収納箱内に配置される端子台であって、前記電気機器からの電線を接続する内部側接続部と、前記電気機器収納箱の外部からの電線を接続する外部側接続部と、前記内部側接続部と前記外部側接続部との間を電気的に接続する導電部と、絶縁性材料からなり、前記内部側接続部および前記外部側接続部が一面に設けられる端子台本体と、前記端子台本体の一面において、前記外部側接続部と前記内部側接続部とのうち、前記内部側接続部のみを隠蔽する端子カバーとを備えることを特徴とする。 The terminal block according to the present invention is a terminal block arranged in an electrical equipment storage box in which electrical equipment is stored, and includes an internal connection portion for connecting an electric wire from the electrical equipment, and an exterior of the electrical equipment storage box. An external connection part for connecting the electric wire from the electric connection part, a conductive part electrically connecting between the internal connection part and the external connection part, and an insulating material, the internal connection part and the external A terminal block main body having a side connection portion provided on one surface; and a terminal cover for concealing only the internal connection portion of the external connection portion and the internal connection portion on one surface of the terminal block main body. It is characterized by that.

この発明において、前記内部側接続部と前記外部側接続部とは前記端子台本体の一面において一方向に沿って並んで配設され、前記端子台本体は、前記内部側接続部と前記外部側接続部との間に立設された仕切壁部と、前記内部側接続部の各々を挟んで両側に立設された第１の隔壁部と、前記外部側接続部の各々を挟んで両側に立設された第２の隔壁部とを備え、前記第１、第２の隔壁部の少なくとも一方は、前記一方向において互いに対向する面に切欠部が形成され、前記端子カバーは、前記切欠部に係止する係止部を具備して、前記第１の隔壁部上に配置されることが望ましい。   In the present invention, the internal side connection portion and the external side connection portion are arranged side by side along one direction on one surface of the terminal block main body, and the terminal block main body includes the internal side connection portion and the external side. A partition wall portion erected between the connection portions, a first partition wall portion erected on both sides of each of the inner side connection portions, and both sides of each of the outer side connection portions And at least one of the first and second partition walls is formed with a notch in a surface facing each other in the one direction, and the terminal cover includes the notch It is desirable that the first partition wall portion be disposed on the first partition wall.

この発明において、前記端子カバーは、折り目が形成され、当該折り目に沿って開閉することで、前記内部側接続部を隠蔽する状態と、前記内部側接続部が露出する状態とが切り替えられることが望ましい。   In this invention, the terminal cover is formed with a crease, and is opened and closed along the crease, so that a state of concealing the internal side connection portion and a state of exposing the internal side connection portion may be switched. desirable.

この発明において、前記端子カバーは、前記内部側接続部とともに前記仕切壁部を隠蔽し、前記端子カバーと前記仕切壁部との間に空間を設けることが望ましい。   In this invention, it is preferable that the terminal cover conceals the partition wall portion together with the inner side connection portion, and a space is provided between the terminal cover and the partition wall portion.

本発明の電気機器収納箱は、電気機器と、前記電気機器からの電線を接続する内部側接続部、外部からの電線を接続する外部側接続部、前記内部側接続部と前記外部側接続部との間を電気的に接続する導電部、絶縁性材料からなり、前記内部側接続部および前記外部側接続部が一面に設けられる端子台本体、前記端子台本体の一面において、前記外部側接続部と前記内部側接続部とのうち、前記内部側接続部のみを隠蔽する端子カバーを備える端子台とを収納することを特徴とする。
The electrical device storage box of the present invention includes an electrical device, an internal connection portion for connecting an electric wire from the electrical device, an external connection portion for connecting an external electrical wire, the internal connection portion and the external connection portion. A conductive part that is electrically connected between the terminal block body, the inner side connection part and the outer side connection part provided on one side, and the external side connection on one side of the terminal block body. And a terminal block including a terminal cover for concealing only the inner-side connecting portion among the inner-side connecting portion and the inner-side connecting portion.

以上説明したように、本発明では、現場の施工業者が誤って内部電線の接続を変更することを抑制し、誤配線の不具合を低減させることができるという効果がある。   As described above, according to the present invention, there is an effect that it is possible to prevent the site contractor from changing the connection of the internal electric wire by mistake and to reduce malfunctions of erroneous wiring.

（ａ）（ｂ）（ｃ）端子台の構成を示す平面図である。(A) (b) (c) It is a top view which shows the structure of a terminal block. 同上の構成を示す斜視図である。It is a perspective view which shows a structure same as the above. 同上の構成を示す一部分解斜視図である。It is a partially exploded perspective view which shows a structure same as the above. 同上の端子台本体の構成を示す上面図である。It is a top view which shows the structure of a terminal block main body same as the above. 同上の端子カバーの構成を示す斜視図である。It is a perspective view which shows the structure of a terminal cover same as the above. 同上の端子台本体と端子カバーとを示す一部の断面図である。It is a partial cross section figure which shows a terminal block main body and a terminal cover same as the above. 同上の別の構成を示す一部分解斜視図である。It is a partially exploded perspective view which shows another structure same as the above. 同上の端子台を備えた電気機器収納箱の構成を示す平面図である。It is a top view which shows the structure of the electric equipment storage box provided with the terminal block same as the above.

以下、本発明の実施の形態を図面に基づいて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

（実施形態）
図１〜図３は、本発明の端子台Ａの全体構成を示す。端子台Ａは、電気機器が収納された電気機器収納箱内に配置され、電気機器からの電線Ｌ１（内部電線Ｌ１）と、電気機器収納箱の外部からの電線Ｌ２（外部電線Ｌ２）とを中継するために使用される。そして、絶縁性の端子台本体１と、端子金具２と、端子ねじ３と、端子カバー４とで構成される。 (Embodiment)
1 to 3 show the overall configuration of the terminal block A of the present invention. The terminal block A is arranged in an electric device storage box in which electric devices are stored, and includes an electric wire L1 (internal electric wire L1) from the electric device and an electric wire L2 (external electric wire L2) from the outside of the electric device storage box. Used to relay. The insulating terminal base body 1, the terminal fitting 2, the terminal screw 3, and the terminal cover 4 are configured.

端子台本体１は、絶縁材の合成樹脂成形品であり、基台１０の両側方向の側部には取り付け部材１１が各々設けられる。一対の取り付け部材１１間の基台１０の一面には、両端方向（両側方向の直交方向）を略２等分する仕切壁部１２が立設され、さらに仕切壁部１２によって略２等分された各領域において、基台１０の両側方向を略３等分する隔壁部１３（１３Ａ，１３Ｂ）が立設されている。なお、一方の取り付け部材１１にのみ隔壁部１３が隣接して設けられる。基台１０の一面には、仕切壁部１２と隔壁部１３とによって分割された６つの台座部１４が形成され、各台座部１４には、端子ねじ３や端子金具２の導通部材が上下方向に挿通する挿通孔１５（図４参照）が形成されている。   The terminal block main body 1 is a synthetic resin molded product of an insulating material, and mounting members 11 are respectively provided on the sides of the base 10 in both directions. On one surface of the base 10 between the pair of attachment members 11, a partition wall portion 12 that bisects both end directions (perpendicular directions in both directions) is erected, and is further divided into approximately two portions by the partition wall portion 12. In each region, partition walls 13 (13A, 13B) are provided to divide the both sides of the base 10 into approximately three equal parts. The partition wall 13 is provided adjacent to only one attachment member 11. On one surface of the base 10, six pedestal portions 14 divided by a partition wall portion 12 and a partition wall portion 13 are formed, and in each pedestal portion 14, the terminal screws 3 and the conductive members of the terminal fitting 2 are vertically moved. The insertion hole 15 (refer FIG. 4) penetrated to is formed.

取り付け部材１１は、基台１０の両側面に形成した側壁部１１ａと、側壁部１１ａの下端から両側方向へ各々延設された固定片１１ｂとで構成される。固定片１１ｂは、両端方向の略中央にＵ字状の切り欠き部１１ｃを形成し、この切り欠き部１１ｃを図示しない取付ねじが挿通することで、端子台Ａが電気機器収納箱内に固定される。   The attachment member 11 includes a side wall portion 11a formed on both side surfaces of the base 10 and fixed pieces 11b respectively extending in the both side directions from the lower end of the side wall portion 11a. The fixed piece 11b is formed with a U-shaped cutout portion 11c at substantially the center in both end directions, and the terminal block A is fixed in the electrical equipment storage box by inserting an attachment screw (not shown) through the cutout portion 11c. Is done.

そして、６つの台座部１４の各々には、端子金具２の端子板が載置される。端子金具２は、導電性の金属で形成され、端子板には挿通孔１５に対向する図示しないねじ孔が形成される。電線は、端子金具２のねじ孔に端子ねじ３を締め込むことで端子金具２に接続される。仕切壁部１２を挟んで両端方向に対向する一対の台座部１４に載置された各端子金具２は、端子金具２の端子板から下方に延設されて挿通孔１５を挿通する図示しない導電部材（導電部）を介して、基台１０内で電気的に互いに接続されている。すなわち、仕切壁部１２を挟んで両端方向に沿って配置された一対の端子金具２は互いに導通している。   And the terminal board of the terminal metal fitting 2 is mounted in each of the six base parts 14. FIG. The terminal fitting 2 is made of a conductive metal, and a screw hole (not shown) facing the insertion hole 15 is formed in the terminal plate. The electric wire is connected to the terminal fitting 2 by tightening the terminal screw 3 into the screw hole of the terminal fitting 2. Each terminal fitting 2 placed on the pair of pedestal portions 14 facing both ends across the partition wall portion 12 extends downward from the terminal plate of the terminal fitting 2 and passes through the insertion hole 15 (not shown). They are electrically connected to each other in the base 10 via members (conductive portions). That is, the pair of terminal fittings 2 arranged along the both end directions with the partition wall 12 interposed therebetween are electrically connected to each other.

このように構成された端子台Ａでは、基台１０の一端側に設けた３つの端子金具２および端子ねじ３とで、電気機器収納箱内に配置された電気機器からの内部電線Ｌ１を接続する内部側接続部Ｘ１を構成する。さらに、基台１０の他端側に設けた３つの端子金具２および端子ねじ３とで、外部からの外部電線Ｌ２を接続する外部側接続部Ｘ２を構成する。したがって、端子台Ａは、内部側接続部Ｘ１に接続された内部電線Ｌ１と外部側接続部Ｘ２に接続された外部電線Ｌ２とを中継している。   In the terminal block A configured as described above, the internal electric wire L1 from the electric device arranged in the electric device storage box is connected by the three terminal fittings 2 and the terminal screw 3 provided on one end side of the base 10. The internal side connection part X1 which comprises is comprised. Further, the three terminal fittings 2 and the terminal screws 3 provided on the other end side of the base 10 constitute an external connection portion X2 for connecting an external electric wire L2 from the outside. Therefore, the terminal block A relays the internal electric wire L1 connected to the internal side connection portion X1 and the external electric wire L2 connected to the external side connection portion X2.

なお、以降の説明では、内部側接続部Ｘ１側の隔壁部１３を隔壁部１３Ａ（第１の隔壁部）、外部側接続部Ｘ２側の隔壁部１３を隔壁部１３Ｂ（第２の隔壁部）と称す。   In the following description, the partition wall portion 13 on the inner side connection portion X1 side is the partition wall portion 13A (first partition wall portion), and the partition wall portion 13 on the outer side connection portion X2 side is the partition wall portion 13B (second partition wall portion). Called.

そして本実施形態では、内部電線Ｌ１が接続される内部側接続部Ｘ１を隠蔽する端子カバー４を備えている。端子カバー４は、絶縁性材料で矩形板状に形成され、側壁部１１ａ間で、内部側接続部Ｘ１の隔壁部１３Ａ上に取り付けられる。隔壁部１３Ａの上面は、仕切壁部１２の上面より突出しており、当該隔壁部１３Ａの突出箇所において、その仕切壁部１２側の端面に略コの字状の切欠部１３ａが形成されている（図３参照）。一方、端子カバー４は、切欠部１３ａに対向する箇所近傍に、内部側接続部Ｘ１側を開放した略コの字状の切れ目を形成することで、上下方向に開閉可能なヒンジ片４ａを形成している。そして、ヒンジ片４ａを下方に撓ませ、ヒンジ片４ａの先端縁を内部側接続部Ｘ１側の隔壁部１３Ａに形成した切欠部１３ａに係止させる。   And in this embodiment, the terminal cover 4 which conceals the internal side connection part X1 to which the internal electric wire L1 is connected is provided. The terminal cover 4 is formed in a rectangular plate shape with an insulating material, and is attached on the partition wall portion 13A of the inner side connection portion X1 between the side wall portions 11a. The upper surface of the partition wall portion 13A protrudes from the upper surface of the partition wall portion 12, and a substantially U-shaped cutout portion 13a is formed on the end surface of the partition wall portion 12 at the protruding portion of the partition wall portion 13A. (See FIG. 3). On the other hand, the terminal cover 4 forms a hinge piece 4a that can be opened and closed in the vertical direction by forming a substantially U-shaped cut opening that opens the inner side connection portion X1 side in the vicinity of the portion facing the notch portion 13a. doing. Then, the hinge piece 4a is bent downward, and the tip edge of the hinge piece 4a is engaged with the notch 13a formed in the partition wall portion 13A on the inner side connection portion X1 side.

さらに、隔壁部１３Ａの上面では、内部電線Ｌ１の入線方向側の端部に突部１３ｃが形成されており、端子カバー４の両端方向の位置ずれを規制している。   Furthermore, on the upper surface of the partition wall 13A, a protrusion 13c is formed at the end of the internal electric wire L1 on the incoming line direction side, and the positional deviation in the both ends of the terminal cover 4 is restricted.

また、隔壁部１３Ｂの上面は、仕切壁部１２の上面より突出しており、当該隔壁部１３Ｂの突出箇所において、その仕切壁部１２側の端面に略コの字状の切欠部１３ｂが形成されている（図３参照）。一方、端子カバー４の他端側には、両側方向に沿って形成された折り目４ｂによって、可動片４ｃが設けられており、可動片４ｃは折り目４ｂを支点として上下方向に開閉可能に構成されている。そして、可動片４ｃを下方に撓ませ、外部側接続部Ｘ２側の隔壁部１３Ｂに形成した切欠部１３ｂに係止させる。   Further, the upper surface of the partition wall portion 13B protrudes from the upper surface of the partition wall portion 12, and a substantially U-shaped cutout portion 13b is formed on the end surface of the partition wall portion 12 at the protruding portion of the partition wall portion 13B. (See FIG. 3). On the other hand, a movable piece 4c is provided on the other end side of the terminal cover 4 by a crease 4b formed along both sides, and the movable piece 4c is configured to be opened and closed in the vertical direction with the crease 4b as a fulcrum. ing. Then, the movable piece 4c is bent downward and locked to the notch 13b formed in the partition wall 13B on the external connection portion X2 side.

このように、隔壁部１３Ａ，１３Ｂの各端面に設けた切欠部１３ａ，１３ｂに端子カバー４を係止させることによって、端子カバー４は、隔壁部１３Ａ上に取り付けられる。また、この端子カバー４は、端子台本体１から意図して取り外すことが可能であり、端子台本体１に対して着脱可能に構成されている。なお、切欠部１３ａ，１３ｂはいずれか一方のみを設ける構成でもよい。   Thus, the terminal cover 4 is attached on the partition wall 13A by locking the terminal cover 4 to the notches 13a and 13b provided on the end faces of the partition walls 13A and 13B. The terminal cover 4 can be intentionally removed from the terminal block body 1 and is configured to be detachable from the terminal block body 1. In addition, the structure which provides only one of the notches 13a and 13b may be sufficient.

すなわち、端子カバー４は、内部側接続部Ｘ１を上方向から隠蔽しており、内部側接続部Ｘ１の端子ねじ３を回すことは困難となる。また、端子カバー４によって、電気機器収納箱の製造業者と現場の施工業者との責任区分が明確になる。したがって、本実施形態の端子台Ａは、電気機器収納箱内で内部側接続部Ｘ１に内部電線Ｌ１を接続した状態で出荷された場合に、現場の施工業者が、誤って内部側接続部Ｘ１の配線を変更することを抑制でき、誤配線の不具合を低減することができる。さらに、端子カバー４に、対応する端子毎の端子名称を印字することによって、誤配線をより低減させることが可能となる。   That is, the terminal cover 4 conceals the inner side connection portion X1 from above, and it is difficult to turn the terminal screw 3 of the inner side connection portion X1. Moreover, the terminal cover 4 clarifies the responsibility classification between the manufacturer of the electrical equipment storage box and the on-site contractor. Therefore, when the terminal block A of the present embodiment is shipped in a state where the internal electric wire L1 is connected to the internal side connection portion X1 in the electric equipment storage box, the site contractor mistakenly sets the internal side connection portion X1. Therefore, it is possible to suppress the change of the wiring, and it is possible to reduce the problem of erroneous wiring. Furthermore, by printing the terminal name for each corresponding terminal on the terminal cover 4, it is possible to further reduce erroneous wiring.

また端子カバー４は、内部側接続部Ｘ１と仕切壁部１２との境界付近に、両側方向に沿った折り目４ｄが形成されており、図５に示すように、折り目４ｄによって、端子カバー４の一端側には可動片４ｅが設けられている。そして、可動片４ｅは折り目４ｄを支点として上下方向に開閉可能に構成されている。したがって、可動片４ｅを上方向に回動させれば、内部側接続部Ｘ１が上方に露出するので、電気機器収納箱の製造業者は、端子カバー４を端子台本体１に取り付けた状態で、内部側接続部Ｘ１側の配線を行うことができ作業性が向上する。さらに、端子カバー４に、対応する端子毎の端子名称を印字しておくことで、誤配線を低減させることが可能となる。   Further, the terminal cover 4 is formed with folds 4d along both sides in the vicinity of the boundary between the inner side connection portion X1 and the partition wall portion 12, and as shown in FIG. A movable piece 4e is provided on one end side. The movable piece 4e is configured to be opened and closed in the vertical direction with the crease 4d as a fulcrum. Therefore, if the movable piece 4e is rotated upward, the inner side connection portion X1 is exposed upward, so that the manufacturer of the electrical equipment storage box has attached the terminal cover 4 to the terminal block body 1, Wiring on the inner side connection portion X1 side can be performed, and workability is improved. Furthermore, by printing the terminal name for each corresponding terminal on the terminal cover 4, it is possible to reduce erroneous wiring.

また図６に示すように、隔壁部１３Ａ，１３Ｂの上面が仕切壁部１２の上面より突出しているので、端子カバー４の下面と仕切壁部１２との上端との間には隙間空間Ｋが形成されている。したがって図７に示すように、この隙間空間Ｋに温度ヒューズや温度センサ等の温度検出素子Ｓを配置できるので、端子台Ａを大型化することなく、端子台Ａの焼損防止用の温度検出素子Ｓを容易に組み込むことができる。なお、隙間空間Ｋに組み込む素子は、焼損防止用の温度検出素子に限定されるものではない。   Further, as shown in FIG. 6, since the upper surfaces of the partition walls 13 </ b> A and 13 </ b> B protrude from the upper surface of the partition wall portion 12, there is a gap space K between the lower surface of the terminal cover 4 and the upper end of the partition wall portion 12. Is formed. Therefore, as shown in FIG. 7, a temperature detection element S such as a temperature fuse or a temperature sensor can be arranged in the gap space K. Therefore, the temperature detection element for preventing the terminal block A from burning without increasing the size of the terminal block A. S can be easily incorporated. The element incorporated in the gap space K is not limited to the temperature detection element for preventing burnout.

図８は、本実施形態の端子台Ａを収納した電気機器収納箱Ｂの構成を示す。   FIG. 8 shows the configuration of an electrical equipment storage box B that houses the terminal block A of the present embodiment.

電気機器収納箱Ｂは、一面を開口した矩形函状に形成されたケース本体１００ａと、ケース本体１００ａの開口に覆設するカバー１００ｂとで筐体を構成している。ケース本体１００ａ内には、ＤＣ／ＤＣコンバータおよびＡＣ／ＤＣコンバータの各回路基板を備える電力変換部１０１、バッテリーを備えるバックアップ電源部１０２、電力変換部１０１の動作を制御するコントローラ部１０３が配置されている。カバー１００ｂには、コントローラ部１０３の操作部１０３ａに対向する箇所に開口１００ｃが設けられており、開口１００ｃから操作部１０３ａが外部に露出する。   The electrical equipment storage box B constitutes a casing by a case main body 100a formed in a rectangular box shape with one surface opened and a cover 100b covering the opening of the case main body 100a. In the case main body 100a, a power conversion unit 101 including each circuit board of a DC / DC converter and an AC / DC converter, a backup power supply unit 102 including a battery, and a controller unit 103 for controlling the operation of the power conversion unit 101 are arranged. ing. The cover 100b is provided with an opening 100c at a position facing the operation unit 103a of the controller unit 103, and the operation unit 103a is exposed to the outside through the opening 100c.

図８に示す上下左右方向において、電力変換部１０１は、ケース本体１００ａ内の略中央の上方に配置され、バックアップ電源部１０２、コントローラ部１０３は、ケース本体１００ａ内の左右両端方向に偏倚して各々配置される。   In the up / down / left / right directions shown in FIG. 8, the power conversion unit 101 is disposed substantially above the center of the case main body 100a, and the backup power supply unit 102 and the controller unit 103 are biased toward the left and right ends of the case main body 100a. Each is arranged.

そして、ケース本体１００ａ内の下方には、上記説明した端子台Ａを用いた入力端子Ａ１，Ａ２と、出力端子１１０と、通信用端子１１１とが配置されている。   In the lower part of the case main body 100a, input terminals A1, A2 using the terminal block A described above, an output terminal 110, and a communication terminal 111 are arranged.

入力端子Ａ１は、電力変換部１０１のＤＣ／ＤＣコンバータの入力との間で内部電線Ｌ１が配線され、入力端子Ａ２は、電力変換部１０１のＡＣ／ＤＣコンバータの入力との間で内部電線Ｌ１が配線される。なお、出力端子１１０は、電力変換部１０１の出力（ＤＣ／ＤＣコンバータおよびＡＣ／ＤＣコンバータの各出力）との間で配線され、通信用端子１１１は、コントローラ部１０３の通信用端子との間で配線される。   The internal terminal L1 is wired between the input terminal A1 and the input of the DC / DC converter of the power converter 101, and the input terminal A2 is connected to the input of the AC / DC converter of the power converter 101. Is wired. The output terminal 110 is wired between the outputs of the power conversion unit 101 (DC / DC converter and AC / DC converter outputs), and the communication terminal 111 is connected to the communication terminal of the controller unit 103. Wired with.

上記入力端子Ａ１，Ａ２に対する内部電線Ｌ１の配線、および出力端子１１０、通信用端子１１１の内部配線は、電気機器収納箱Ｂの製造業者が行い、内部電線Ｌ１を含む内部配線が完了した後に、電気機器収納箱Ｂが施工現場へ出荷される。この出荷時の電気機器収納箱Ｂにおいて、入力端子Ａ１，Ａ２の内部側接続部Ｘ１は、端子カバー４によって隠蔽されている。なお、図８において、出力端子１１０および通信用端子１１１の内部配線は、端子の周囲に設けたカバーＣによって隠蔽されている。   The wiring of the internal electric wire L1 to the input terminals A1 and A2, and the internal wiring of the output terminal 110 and the communication terminal 111 are performed by the manufacturer of the electrical equipment storage box B, and after the internal wiring including the internal electric wire L1 is completed, The electric equipment storage box B is shipped to the construction site. In the electrical equipment storage box B at the time of shipment, the inner side connection portion X1 of the input terminals A1 and A2 is concealed by the terminal cover 4. In FIG. 8, the internal wiring of the output terminal 110 and the communication terminal 111 is concealed by a cover C provided around the terminals.

施工現場では、施工業者が電気機器収納箱Ｂを壁面等に設置した後に、外部電線の配線を行う。入力端子Ａ１は、太陽発電装置、燃料電池発電装置等の分散電源との間で外部電線Ｌ２が配線され、入力端子Ａ２は、商用電源との間で外部電線Ｌ２が配線される。さらに、出力端子１１０は、直流電源で動作する直流機器との間で外部電線Ｌ３が配線される。通信用端子１１１は、コントローラ部１０３による電力制御を監視制御する外部機器（例えば、パーソナルコンピュータや、ＬＡＮを介した管理サーバ等）との間で信号線Ｌ４が接続される。   At the construction site, after the contractor installs the electric equipment storage box B on the wall surface or the like, the external electric wires are wired. An external electric wire L2 is wired between the input terminal A1 and a distributed power source such as a solar power generation device or a fuel cell power generation device, and an external electric wire L2 is wired between the input terminal A2 and a commercial power source. Further, an external electric wire L3 is wired between the output terminal 110 and a DC device operating with a DC power supply. The communication terminal 111 is connected to a signal line L4 with an external device (for example, a personal computer or a management server via a LAN) that monitors and controls power control by the controller unit 103.

この施工現場での外部電線Ｌ２の配線作業は、入力端子Ａ１，Ａ２の内部側接続部Ｘ１が端子カバー４によって隠蔽されているため、現場の施工業者が誤って内部電線Ｌ１の接続を変更することを抑制し、誤配線の不具合を低減させることができる。   The wiring work of the external electric wire L2 at this construction site is because the internal side connection portion X1 of the input terminals A1 and A2 is concealed by the terminal cover 4, and the construction contractor at the site erroneously changes the connection of the internal electric wire L1. This can be suppressed and malfunctions of erroneous wiring can be reduced.

Ａ 端子台
１ 端子台本体
２ 端子金具
３ 端子ねじ
４ 端子カバー
Ｘ１ 内部側接続部
Ｘ２ 外部側接続部
Ｌ１ 内部電線
Ｌ２ 外部電線 A Terminal block 1 Terminal block body 2 Terminal bracket 3 Terminal screw 4 Terminal cover X1 Internal connection X2 External connection L1 Internal wire L2 External wire

Claims (5)

電気機器が収納された電気機器収納箱内に配置される端子台であって、
前記電気機器からの電線を接続する内部側接続部と、
前記電気機器収納箱の外部からの電線を接続する外部側接続部と、
前記内部側接続部と前記外部側接続部との間を電気的に接続する導電部と、
絶縁性材料からなり、前記内部側接続部および前記外部側接続部が一面に設けられる端子台本体と、
前記端子台本体の一面において、前記外部側接続部と前記内部側接続部とのうち、前記内部側接続部のみを隠蔽する端子カバーと、
を備えることを特徴とする端子台。 A terminal block arranged in an electrical equipment storage box in which electrical equipment is stored,
An internal side connecting part for connecting an electric wire from the electric device;
An external connection part for connecting an electric wire from the outside of the electrical equipment storage box;
A conductive part that electrically connects the internal side connection part and the external side connection part;
A terminal block body made of an insulating material, the inner side connecting portion and the outer side connecting portion being provided on one surface;
In one surface of the terminal block main body, a terminal cover that conceals only the internal side connection part among the external side connection part and the internal side connection part ,
A terminal block comprising: 前記内部側接続部と前記外部側接続部とは前記端子台本体の一面において一方向に沿って並んで配設され、
前記端子台本体は、前記内部側接続部と前記外部側接続部との間に立設された仕切壁部と、前記内部側接続部の各々を挟んで両側に立設された第１の隔壁部と、前記外部側接続部の各々を挟んで両側に立設された第２の隔壁部とを備え、
前記第１、第２の隔壁部の少なくとも一方は、前記一方向において互いに対向する面に切欠部が形成され、
前記端子カバーは、前記切欠部に係止する係止部を具備して、前記第１の隔壁部上に配置される
ことを特徴とする請求項１記載の端子台。 The inner side connection portion and the outer side connection portion are arranged side by side along one direction on one surface of the terminal block main body,
The terminal block body includes a partition wall portion erected between the inner side connection portion and the outer side connection portion, and a first partition wall erected on both sides of each of the inner side connection portions. And a second partition wall erected on both sides across each of the external connection portions,
At least one of the first and second partition walls is formed with a notch in a surface facing each other in the one direction,
The terminal block according to claim 1, wherein the terminal cover includes an engaging portion that engages with the cutout portion and is disposed on the first partition wall portion. 前記端子カバーは、折り目が形成され、当該折り目に沿って開閉することで、前記内部側接続部を隠蔽する状態と、前記内部側接続部が露出する状態とが切り替えられることを特徴とする請求項１または２記載の端子台。   The terminal cover is formed with a crease, and is opened and closed along the crease to switch between a state of concealing the internal side connection part and a state of exposing the internal side connection part. Item 1 or 2 terminal block. 前記端子カバーは、前記内部側接続部とともに前記仕切壁部を隠蔽し、前記端子カバーと前記仕切壁部との間に空間を設けることを特徴とする請求項１乃至３いずれか記載の端子台。   4. The terminal block according to claim 1, wherein the terminal cover conceals the partition wall portion together with the inner side connection portion, and provides a space between the terminal cover and the partition wall portion. . 電気機器と、
前記電気機器からの電線を接続する内部側接続部、外部からの電線を接続する外部側接続部、前記内部側接続部と前記外部側接続部との間を電気的に接続する導電部、絶縁性材料からなり、前記内部側接続部および前記外部側接続部が一面に設けられる端子台本体、前記端子台本体の一面において、前記外部側接続部と前記内部側接続部とのうち、前記内部側接続部のみを隠蔽する端子カバーを備える端子台と
を収納することを特徴とする電気機器収納箱。 Electrical equipment,
Internal side connection part for connecting electric wires from the electrical equipment, external side connection part for connecting electric wires from the outside, conductive part for electrically connecting the internal side connection part and the external side connection part, insulation A terminal block main body made of a conductive material, wherein the inner side connection portion and the outer side connection portion are provided on one surface, and on one surface of the terminal block main body, the outer side connection portion and the inner side connection portion, the inner side And a terminal block having a terminal cover for concealing only the side connection portion.
JP2010102484A 2010-04-27 2010-04-27 Terminal block and electrical equipment storage box equipped with the terminal block Expired - Fee Related JP5156049B2 (en)

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