JP2017216253A - Terminal board - Google Patents

Terminal board Download PDF

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JP2017216253A
JP2017216253A JP2017152071A JP2017152071A JP2017216253A JP 2017216253 A JP2017216253 A JP 2017216253A JP 2017152071 A JP2017152071 A JP 2017152071A JP 2017152071 A JP2017152071 A JP 2017152071A JP 2017216253 A JP2017216253 A JP 2017216253A
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terminal
pole
insulating wall
terminal block
wire
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JP6623196B2 (en
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一也 上木
Kazuya Ueki
一也 上木
一馬 松本
Kazuma Matsumoto
一馬 松本
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Tempearl Industrial Co Ltd
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Tempearl Industrial Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a terminal board with high safety for preventing short-circuit accident.SOLUTION: On a terminal board, a plurality of terminal bodies 3a, 3b, and 3c that are divided into upper stage terminal parts offset in a vertical direction and connecting power receiving electric wire, and lower stage terminal parts connecting power feeding electric wire, and the upper terminal parts and the lower terminal parts are offset in a horizontal direction, are aligned in a horizontal direction. The terminal board is provided with an upper stage insulation wall 41a for insulating poles of the upper stage terminal parts, and a lower stage insulation wall 42a for insulating poles of the lower stage terminal parts between the plurality of terminals A position of the lower insulation walls in a horizontal direction is set to a position identical to a horizontal direction of an electric wire fixing part of the upper stage terminal parts, and height of the lower stage insulation walls is set to height almost identical to the electric wire fixing part. An upper face of the lower stage insulation wall is constituted as a support part of the power receiving electric wire fixed to the upper stage terminal part.SELECTED DRAWING: Figure 1

Description

本発明は、分電盤等で用いられる電線を接続する端子台に関する。   The present invention relates to a terminal block for connecting electric wires used in a distribution board or the like.

分電盤等において、電力量計の二次側から供給される電力を負荷回路に分配する形態として、主幹ブレーカを介して各分岐ブレーカへ電力を分配する第一の系統と、主幹ブレーカを介さずに、特定の負荷回路へ直接電力を供給する第二の系統(一次送り系統)との二つの系統に分配する形態がある。これら第一の系統と第二の系統とに電力を分配する分岐手段としては、分電盤内に端子台を用いることが多い。   In the distribution board, etc., as a form to distribute the power supplied from the secondary side of the watt hour meter to the load circuit, the first system that distributes the power to each branch breaker via the main breaker and the main breaker Instead, there is a form of distribution to two systems, a second system (primary feed system) that supplies power directly to a specific load circuit. As a branching means for distributing power to the first system and the second system, a terminal block is often used in the distribution board.

このような場合において、一つの端子部に一つの電線を対応付けて配線する一般的な端子台を利用した場合、送電側が二つに分配されるため、一つの端子部に二つの電線を接続して、一次送り配線を行うことになる。この様な配線方法では、一つの端子部に一つの電線を対応付けて配線する場合に比べて、ネジやボルトによる締付けの作業性が悪くなる。また、締付けが不十分であった場合には締付けたネジが緩みやすくなり、経年的に端子部の異常過熱を引き起こす恐れが推測される。   In such a case, when a general terminal block is used in which one electric wire is associated with one terminal portion, the power transmission side is divided into two, so two electric wires are connected to one terminal portion. Thus, primary feed wiring is performed. In such a wiring method, the workability of tightening with screws or bolts is worse than in the case where one electric wire is associated with one terminal portion. In addition, if the tightening is insufficient, the tightened screw is likely to loosen, and it is assumed that the terminal portion may overheat abnormally over time.

そこで、第一の系統と第二の系統とに電力を分配する端子台として、特許文献1に記載の端子台が開示されている。特許文献1記載の端子台1は、電線を接続する端子部を上下に分けて、上側の端子部を、入線用電線2aを接続する入線用端子部5aとして設けた構成としている。また、下側の端子部を、送り用電線2bを接続する送り用端子部5bとして設けた。これにより、1つの端子部に1本の電線を接続することができるため、一次送り配線を行う場合でも電線ごとに各端子への確実な接続が可能で、作業性が良く、また、締付けが緩みやすくなるという問題も改善されている。   Then, the terminal block of patent document 1 is disclosed as a terminal block which distributes electric power to a 1st system | strain and a 2nd system | strain. The terminal block 1 described in Patent Document 1 has a configuration in which a terminal portion for connecting an electric wire is divided into upper and lower portions, and an upper terminal portion is provided as an incoming wire terminal portion 5a for connecting an incoming wire 2a. The lower terminal portion was provided as a feeding terminal portion 5b for connecting the feeding wire 2b. As a result, since one electric wire can be connected to one terminal portion, even when primary feed wiring is performed, reliable connection to each terminal is possible for each electric wire, workability is good, and tightening is possible. The problem of easy loosening has also been improved.

さらに、この端子台1では入線用端子部5aと送り用端子部5bとを左右方向にオフセットして設けており、施工後においても、下側の送り用端子部5bが接続した電線によって隠れることがなく、点検時の増締め作業等も容易に行うことができる。   Further, in this terminal block 1, the incoming terminal portion 5a and the feeding terminal portion 5b are provided offset in the left-right direction, and even after construction, the lower feeding terminal portion 5b is hidden by the connected electric wire. No retightening work can be easily performed during inspection.

特開2003−68379号公報JP 2003-68379 A

しかし、特許文献1に開示される端子台においては、入線用端子部5aと送り用端子部5bを左右方向にオフセットして設けたことにより、三つある入線用端子部5a、送り用端子部5bのうち、中極の入線用端子部5aと左極の送り用端子部5bなど、異極の端子間において、左右方向の導体の位置が近接するため、施工時に電線の入線方向が左右方向に曲がった方向で取り付けた場合や、施工後に電線に外力が加わって左右方向にずれた場合等に、異極間の電線が接触して、短絡事故を招く危険性がある。
そこで、本発明は、上記の課題を解決するためになされたもので、短絡事故を防止する安全性の高い端子台を提供することを目的としたものである。
However, in the terminal block disclosed in Patent Document 1, there are three incoming terminal portions 5a and feeding terminal portions by providing the incoming terminal portion 5a and the feeding terminal portion 5b offset in the left-right direction. 5b, since the positions of the conductors in the left and right directions are close to each other between the terminals of different polarities such as the terminal section 5a for the middle pole and the terminal section 5b for the left pole, the direction of the incoming line of the electric wire is the left and right direction during construction. There is a risk of causing a short circuit accident due to contact between the wires of different poles when they are attached in a bent direction, or when an external force is applied to the wires after construction and they are displaced in the left-right direction.
Therefore, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a highly safe terminal block that prevents a short-circuit accident.

本発明に係る端子台は、上述の課題を解決すべく構成されたもので、第1の発明は、上下方向にオフセットして受電電線を接続する上段端子部と送電電線を接続する下段端子部に分けられ、前記上段端子部と前記下段端子部が左右方向にオフセットして設けられた端子体が複数左右方向に並んで配置される端子台であって、前記複数の端子体の間には、前記上段端子部の極間を絶縁するための上段絶縁壁と前記下段端子部の極間を絶縁するための下段絶縁壁が設けられ、該下段絶縁壁は、左右方向の位置を前記上段端子部の電線固定部の左右方向と同じ位置に設定し、下段絶縁壁の高さを前記電線固定部と略同一の高さに設定し、該下段絶縁壁の上面を前記上段端子部に固定する受電電線の支持部として構成し、前記下段絶縁壁の支持部に、受電電線の位置を安定させる凹部を設けるとともに、受電電線の位置を安定させる凹部を設けたことを特徴とするものである。   The terminal block according to the present invention is configured to solve the above-described problem, and the first invention is configured such that an upper terminal portion that connects the power receiving wire with an offset in the vertical direction and a lower terminal portion that connects the power transmitting wire. A terminal block in which the upper terminal portion and the lower terminal portion are provided by being offset in the left-right direction and arranged in a plurality of left-right directions, between the plurality of terminal bodies. An upper insulating wall for insulating between the poles of the upper terminal portion and a lower insulating wall for insulating the poles of the lower terminal portion, and the lower insulating wall is positioned at a position in the left-right direction. Set the same position as the left and right direction of the wire fixing part of the part, set the height of the lower insulating wall to the same height as the electric wire fixing part, and fix the upper surface of the lower insulating wall to the upper terminal part It is configured as a support part of the power receiving wire, and in the support part of the lower insulating wall, Provided with a recess to stabilize the position of DENDEN line, it is characterized in that a recess to stabilize the position of the power receiving lines.

かかる構成によれば、下段絶縁壁の上面が、上段端子部に固定される受電電線の支持部として構成されているため、該受電電線は下段端子部の方向へ曲がることがない。よって、受電電線の直下の下段端子部に接続する送電電線が異極である場合でも、その異極間の電線の接触が防止されることになる。従って、短絡事故を防ぐことが可能となる。   According to such a configuration, since the upper surface of the lower insulating wall is configured as a support portion for the power receiving wire fixed to the upper terminal portion, the power receiving wire does not bend toward the lower terminal portion. Therefore, even when the power transmission wire connected to the lower terminal portion directly below the power receiving wire has a different polarity, the contact of the wire between the different polarities is prevented. Therefore, it is possible to prevent a short circuit accident.

また、凹部で受電電線を受けることで、下段絶縁壁が該受電電線の台座のような役割を果たし、電線の左右方向へのズレを抑制することが可能となる。従って、下段絶縁壁の支持部の機能がより確実なものとなる。   Further, by receiving the power receiving wire in the concave portion, the lower insulating wall plays a role like a pedestal of the power receiving wire, and it is possible to suppress the displacement of the wire in the left-right direction. Therefore, the function of the support portion of the lower insulating wall becomes more reliable.

また、取付部を下段絶縁壁に設けることで、取付部の幅を下段絶縁壁と共用できる。こうすることで、絶縁壁の左右方向の幅を有効に利用することができ、取付部を別途端子台の外周部に設置することなく端子台を構成することができる。   Further, by providing the mounting portion on the lower insulating wall, the width of the mounting portion can be shared with the lower insulating wall. By doing so, the width in the left-right direction of the insulating wall can be used effectively, and the terminal block can be configured without separately installing the mounting portion on the outer periphery of the terminal block.

第2の発明は、前記第1の発明において、前記取付部は、端子台取付後に、金属製の取付部材が下段絶縁壁上面より突出しないよう凹状に設けられ、該金属製の取付部材と下段絶縁壁上面の間に空間部を設定したことを特徴とするものである。   According to a second invention, in the first invention, the attachment portion is provided in a concave shape so that the metal attachment member does not protrude from the upper surface of the lower insulating wall after the terminal block is attached. A space portion is set between the upper surfaces of the insulating walls.

かかる構成によれば、取付部が下段絶縁壁にあっても、端子台の取付後の電線の導電部と金属製の取付部材との接触を防止でき、かつ、空間部により絶縁距離を確保できるから、安全なものとなる。   According to such a configuration, even if the attachment portion is on the lower insulating wall, contact between the conductive portion of the electric wire after the terminal block is attached and the metal attachment member can be prevented, and an insulation distance can be secured by the space portion. Therefore, it will be safe.

以上の如く、本発明によれば、絶縁壁上面が送り用電線の支持部の役割を果たすため、短絡事故を防止する安全性の高い端子台を提供することができる。   As described above, according to the present invention, since the upper surface of the insulating wall serves as a support portion for the feeding wire, it is possible to provide a highly safe terminal block that prevents a short circuit accident.

端子台の斜視図Perspective view of terminal block 端子体の斜視図Perspective view of terminal body 端子台の正面図Front view of terminal block 図2のAA断面図AA sectional view of FIG. 図2のBB断面図BB sectional view of FIG. 住宅用分電盤に端子台を取り付けた状態を示す図The figure which shows the state which attached the terminal block to the distribution board for houses

以下、本発明の実施形態を図面に基づいて詳細に説明する。尚、以下の好ましい実施形態の説明は、本質的に例示に過ぎず、本発明、その適用物或いはその用途を制限することを意図するものではない。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature, and is not intended to limit the present invention, its application, or its use.

本発明における端子台1Tは、主に、一般家庭の住宅用分電盤13において、電力量計の二次側から供給される電力を、主幹ブレーカを介して各分岐ブレーカへ電力を分配する第一の系統と、主幹ブレーカを介さずに、特定の負荷回路へ直接電力を供給する第二の系統との二つの系統に分配する端子として用いられる。より具体的には、柱上トランスから給電される電源を、主幹ブレーカ14及びその配下の系統と、時間帯別電灯契約用ブレーカの系統との、二系統に分配配線するために設置する。   The terminal block 1T according to the present invention mainly distributes power supplied from the secondary side of the watt-hour meter to each branch breaker via the main breaker in the residential distribution board 13 for ordinary households. It is used as a terminal that distributes to two systems: one system and a second system that supplies power directly to a specific load circuit without going through the main breaker. More specifically, the power source fed from the pole transformer is installed to distribute and distribute the power to two systems of the main breaker 14 and its subordinate system, and the hourly electric power breaker system.

端子台1Tは、図6に示すように、端子台取付具12に取り付けた状態で住宅用分電盤13に組み込み使用する。
(端子台の構成)
As shown in FIG. 6, the terminal block 1 </ b> T is incorporated and used in the residential distribution board 13 while being attached to the terminal block attachment 12.
(Terminal block configuration)

本発明における端子台1Tは、図1に示すように、端子台ベース2、左極端子体3a、中極端子体3b、右極端子体3c、ブレーカ上側接続部6a、ブレーカ下側接続部6b、二次側絶縁壁7から構成される。   As shown in FIG. 1, the terminal block 1T according to the present invention includes a terminal block base 2, a left pole terminal body 3a, a middle pole terminal body 3b, a right pole terminal body 3c, a breaker upper connection portion 6a, and a breaker lower connection portion 6b. The secondary insulating wall 7 is constituted.

端子台ベース2は、左−中極上段絶縁壁41a、中−右極上段絶縁壁41b、左−中極下段絶縁壁42a、中−右極下段絶縁壁42b、周縁部に左側外壁43a、右側外壁43bを設けており、下段絶縁壁42a、42bには凹状に取付部5をそれぞれ有する。また、下段絶縁壁42a、42bの上面42a1、42b1には凹部42a、42b2を設けている。   The terminal block base 2 includes a left-middle pole upper insulating wall 41a, a middle-right pole upper insulating wall 41b, a left-middle pole lower insulating wall 42a, a middle-right pole lower insulating wall 42b, a left outer wall 43a on the periphery, and a right side. An outer wall 43b is provided, and the lower insulating walls 42a and 42b each have a mounting portion 5 in a concave shape. Further, recesses 42a and 42b2 are provided on the upper surfaces 42a1 and 42b1 of the lower insulating walls 42a and 42b.

左極端子体3aは、図2に示すように、電線を接続するための上段端子部31aと下段端子部32aとを上下方向にオフセットして設け、その間を端子接続部33aにより接続している。また、上段端子部31a及び下段端子部32aは、左右方向にオフセットして形成している。上段端子部31aの中央部には受電電線81aの固定部たる上段固定孔311aを有し、下段端子部32aの中央部には送電電線82aの固定部たる下段固定孔321aを有している。   As shown in FIG. 2, the left pole terminal body 3a is provided with an upper terminal portion 31a and a lower terminal portion 32a for connecting wires, which are offset in the vertical direction, and connected therebetween by a terminal connection portion 33a. . Further, the upper terminal portion 31a and the lower terminal portion 32a are formed offset in the left-right direction. A central portion of the upper terminal portion 31a has an upper fixing hole 311a that is a fixing portion of the power receiving wire 81a, and a lower fixing hole 321a that is a fixing portion of the power transmission wire 82a is provided in the central portion of the lower terminal portion 32a.

中極端子体3b及び右極端子体3cは、左極端子体3aと同一の形状であり、それぞれ左極端子体3aと同様に上段端子部31b及び31c、下段端子部32b及び32c、端子接続部33b及び33c、上段固定孔311b及び311c、下段固定孔321b及び321cを有している。   The middle pole terminal body 3b and the right pole terminal body 3c have the same shape as the left pole terminal body 3a. Similarly to the left pole terminal body 3a, the upper terminal portions 31b and 31c, the lower terminal portions 32b and 32c, and the terminal connection It has parts 33b and 33c, upper stage fixing holes 311b and 311c, and lower stage fixing holes 321b and 321c.

左−中極下段絶縁壁42aは、その左右方向の位置を、中極上段端子部31bの中央部に設けられた上段固定孔311bの左右方向の位置と略同じに設定している。また、左−中極下段絶縁壁42aの上面42a1の高さは、中極上段端子部31bと略同一高さに設定している。   The left-middle pole lower insulating wall 42a is set to have a left-right position substantially the same as a left-right position of the upper fixing hole 311b provided at the center of the middle pole upper terminal 31b. Further, the height of the upper surface 42a1 of the left-middle pole lower-stage insulating wall 42a is set to be substantially the same height as the middle pole upper-stage terminal portion 31b.

中−右極下段絶縁壁42bの左右方向の位置も、左−中極下段絶縁壁42aと同様に、右極上段端子部31cの中央部に設けられた上段固定孔311cの左右方向の位置と略同じに設定し、また、中−右極下段絶縁壁42bの上面42b1の高さは、右極上段端子部31cと略同一高さに設定している。   Similarly to the left-middle pole lower insulating wall 42a, the position of the middle-right pole lower insulating wall 42b in the left-right direction is the same as the position of the upper fixing hole 311c provided in the center of the right pole upper terminal 31c in the left-right direction. The upper surface 42b1 of the middle-right pole lower insulating wall 42b is set to be substantially the same height as the right pole upper terminal portion 31c.

ブレーカ上側接続部6aは、左極上段端子部31aと共に、端子ネジ10により螺着固定する。また、ブレーカ下側接続部6bは、右極上段端子部31cと共に、端子ネジ10により螺着固定する。ブレーカ上側接続部6a及びブレーカ下側接続部6bは、このようにして、端子台1Tの二次側に分岐ブレーカを電気的に接続するために設ける。   The breaker upper connection portion 6a is screwed and fixed together with the left pole upper terminal portion 31a by the terminal screw 10. The breaker lower connection portion 6b is screwed and fixed together with the right pole upper terminal portion 31c with the terminal screw 10. In this way, the breaker upper connection portion 6a and the breaker lower connection portion 6b are provided to electrically connect the branch breaker to the secondary side of the terminal block 1T.

二次側絶縁壁7は、ブレーカ上側接続部6aと、該ブレーカ上側接続部6aとは異極となる中極受電電線81b及び右極受電電線81cとを絶縁するために端子台ベース2に取り付けられる。
(端子台の取付作業)
The secondary-side insulating wall 7 is attached to the terminal block base 2 in order to insulate the breaker upper connection portion 6a from the middle-pole power receiving wire 81b and the right-pole power receiving wire 81c that are different in polarity from the breaker upper connection portion 6a. It is done.
(Terminal block installation work)

端子台1Tの使用者は、まず、端子台取付具12の所定位置に端子台1Tを仮置きしたうえ、端子台1Tの取付部5に金属製の取付部材として取付ネジ11を挿入し、端子台1Tを端子台取付具12に螺着固定する。そして、端子台取付具12を住宅用分電盤13に取り付ける。
(電線の接続作業)
First, the user of the terminal block 1T temporarily places the terminal block 1T at a predetermined position of the terminal block mounting tool 12, and then inserts a mounting screw 11 as a metal mounting member into the mounting portion 5 of the terminal block 1T. The base 1T is screwed and fixed to the terminal base fixture 12. Then, the terminal block attachment 12 is attached to the residential distribution board 13.
(Wire connection work)

下段端子部32a、32b、32cに、送電電線82a、82b、82cの一方側を端子ネジ10によりそれぞれ螺着固定する。送電電線82a、82b、82cの他方側は、図6に示すように、主幹ブレーカ14に接続する。   One side of the power transmission wires 82a, 82b, and 82c is screwed and fixed to the lower terminal portions 32a, 32b, and 32c by the terminal screws 10, respectively. The other side of the power transmission wires 82a, 82b, 82c is connected to the main breaker 14 as shown in FIG.

次に、上段端子部31a、31b、31cに、電力量計からの受電電線81a、81b、81cを端子ネジ10によりそれぞれ螺着固定する。端子台1Tへの電線の接続はこれで完了する。
(取付状態)
Next, the power receiving wires 81a, 81b, 81c from the watt hour meter are respectively screwed and fixed to the upper terminal portions 31a, 31b, 31c with the terminal screws 10, respectively. This completes the connection of the electric wire to the terminal block 1T.
(Mounting state)

端子台取付具12に端子台1Tを取り付けた状態においては、下段絶縁壁42a、42bに凹状に設けられた取付部に、取付ネジ11が嵌まり込む。このとき、下段絶縁壁上面から所定の深さの空間部が設けられているため、図4に示すように、取付ネジ11のネジ頭が取付部5から突出しない。換言すれば、下段絶縁壁の上面から取付ネジ11のネジ頭の間に空間部51を有することにより、施工後、受電電線81b、81cの導電部と取付ネジ11との接触を防止して、且つ、絶縁距離を確保できるため、不要な短絡や地絡自己を防止できるため安全である。   In the state where the terminal block 1T is mounted on the terminal block fixture 12, the mounting screw 11 is fitted into the mounting portion provided in a concave shape on the lower insulating walls 42a and 42b. At this time, since the space portion having a predetermined depth is provided from the upper surface of the lower insulating wall, the screw head of the attachment screw 11 does not protrude from the attachment portion 5 as shown in FIG. In other words, by having the space 51 between the upper surface of the lower insulating wall and the screw head of the mounting screw 11, contact between the conductive portion of the power receiving wires 81b and 81c and the mounting screw 11 is prevented after construction. In addition, since the insulation distance can be secured, unnecessary short circuit and ground fault self can be prevented, which is safe.

また、左極受電電線81aは左側外壁43aの上面によって、中極受電電線81bは左−中極下段絶縁壁42aの上面によって、右極受電電線81cは中−右極下段絶縁壁42bの上面によってそれぞれ取付台側への変位が規制されるよう支持される。即ち、受電電線81a、81b、81cが下方向へ曲げられることを抑止される効果が得られる。   In addition, the left pole power receiving wire 81a is formed by the upper surface of the left outer wall 43a, the middle pole power receiving wire 81b is formed by the upper surface of the left-middle pole lower insulating wall 42a, and the right pole power receiving wire 81c is formed by the upper surface of the middle-right pole lower insulating wall 42b. Each is supported so that displacement to the mounting base is restricted. That is, an effect is obtained in which the power receiving wires 81a, 81b, 81c are prevented from being bent downward.

さらに、左−中極下段絶縁壁42aの上面42a1に設けられた凹部42a2により、図5に示すように、左−中極下段絶縁壁42aは中極受電電線81bの左右方向への変位を抑制する台座のような役割を持つ。即ち、中極受電電線81bは左右方向への変位を抑制される効果が得られ、左−中極下段絶縁壁42aの支持力がより確実なものとなる。   Further, the recess 42a2 provided on the upper surface 42a1 of the left-middle pole lower insulation wall 42a causes the left-middle pole lower insulation wall 42a to suppress displacement of the middle pole power receiving wire 81b in the left-right direction as shown in FIG. It has a role like a pedestal. That is, the middle pole power receiving wire 81b has an effect of suppressing displacement in the left-right direction, and the support force of the left-middle pole lower insulating wall 42a is more reliable.

中−右極下段絶縁壁42bについても同様に,上面42b1に設けられた凹部42b2により、右極受電電線81cの左右方向への変位を抑制する台座のような役割をもち、右極受電電線81cは左右方向への変位を抑制される効果が得られ、中−右極下段絶縁壁42bの支持力がより確実なものとなる。
Similarly, the middle-right pole lower-stage insulating wall 42b also functions as a pedestal that suppresses the displacement of the right pole power receiving wire 81c in the left-right direction by the recess 42b2 provided on the upper surface 42b1, and the right pole power receiving wire 81c. The effect of suppressing the displacement in the left-right direction is obtained, and the support force of the middle-right pole lower insulating wall 42b becomes more reliable.

1T 端子台
2 端子台ベース
3a 左極端子体
31a 左極上段端子部
311a 左極上段固定孔
32a 左極下段端子部
321a 左極下段固定孔
33a 左極端子接続部
3b 中極端子体
31b 中極上段端子部
311b 中極上段固定孔
32b 中極下段端子部
321b 中極下段固定孔
33b 中極端子接続部
3c 右極端子体
31c 右極上段端子部
311c 右極上段固定孔
32c 右極下段端子部
321c 右極下段固定孔
33c 右極端子接続部
41a 左−中極上段絶縁壁
41b 中−右極上段絶縁壁
42a 左−中極下段絶縁壁
42b 中−右極下段絶縁壁
43a 左側外壁
43b 右側外壁
44a 左−中極下段絶縁壁上面
44b 中−右極下段絶縁壁上面
45a 左−中極凹部
45b 中−右極凹部
5 取付部
51 空間部
6a ブレーカ上側接続部
6b ブレーカ下側接続部
7 二次側絶縁壁
81a 左極受電電線
81b 中極受電電線
81c 右極受電電線
82a 左極送電電線
82b 中極送電電線
82c 右極送電電線
10 端子ネジ
11 取付ネジ
12 端子台取付具
13 住宅用分電盤
14 主幹ブレーカ

1T Terminal block 2 Terminal block base 3a Left pole terminal body 31a Left pole upper stage terminal part 311a Left pole upper stage fixing hole 32a Left pole lower stage terminal part 321a Left pole lower stage fixing hole 33a Left pole terminal connection part 3b Middle pole terminal body 31b Middle pole top Stage terminal portion 311b Middle pole upper stage fixing hole 32b Middle pole lower stage terminal part 321b Middle pole lower stage fixing hole 33b Middle pole terminal connection part 3c Right pole terminal body 31c Right pole upper stage terminal part 311c Right pole upper stage fixing hole 32c Right pole lower stage terminal part 321c Right pole lower fixing hole 33c Right pole terminal connection part 41a Left-middle pole upper insulation wall 41b Middle-right pole upper insulation wall 42a Left-medium pole lower insulation wall 42b Middle-right pole lower insulation wall 43a Left outer wall 43b Right outer wall 44a Left-middle pole lower insulation wall upper surface 44b Middle-right pole lower insulation wall upper surface 45a Left-middle pole recess 45b Middle-right pole recess 5 Mounting part 51 Space part 6a Breaker upper connection part 6b Breaker Lower side connecting portion 7 Secondary insulation wall 81a Left pole receiving wire 81b Middle pole receiving wire 81c Right pole receiving wire 82a Left pole sending wire 82b Middle pole sending wire 82c Right pole sending wire 10 Terminal screw 11 Mounting screw 12 Terminal block Fixture 13 Residential distribution board 14 Master breaker

本発明は、分電盤等で用いられる電線を接続する端子台に関する。   The present invention relates to a terminal block for connecting electric wires used in a distribution board or the like.

分電盤等において、電力量計の二次側から供給される電力を負荷回路に分配する形態として、主幹ブレーカを介して各分岐ブレーカへ電力を分配する第一の系統と、主幹ブレーカを介さずに、特定の負荷回路へ直接電力を供給する第二の系統(一次送り系統)との二つの系統に分配する形態がある。これら第一の系統と第二の系統とに電力を分配する分岐手段としては、分電盤内に端子台を用いることが多い。   In the distribution board, etc., as a form to distribute the power supplied from the secondary side of the watt hour meter to the load circuit, the first system that distributes the power to each branch breaker via the main breaker and the main breaker Instead, there is a form of distribution to two systems, a second system (primary feed system) that supplies power directly to a specific load circuit. As a branching means for distributing power to the first system and the second system, a terminal block is often used in the distribution board.

このような場合において、一つの端子部に一つの電線を対応付けて配線する一般的な端子台を利用した場合、送電側が二つに分配されるため、一つの端子部に二つの電線を接続して、一次送り配線を行うことになる。この様な配線方法では、一つの端子部に一つの電線を対応付けて配線する場合に比べて、ネジやボルトによる締付けの作業性が悪くなる。また、締付けが不十分であった場合には締付けたネジが緩みやすくなり、経年的に端子部の異常過熱を引き起こす恐れが推測される。   In such a case, when a general terminal block is used in which one electric wire is associated with one terminal portion, the power transmission side is divided into two, so two electric wires are connected to one terminal portion. Thus, primary feed wiring is performed. In such a wiring method, the workability of tightening with screws or bolts is worse than in the case where one electric wire is associated with one terminal portion. In addition, if the tightening is insufficient, the tightened screw is likely to loosen, and it is assumed that the terminal portion may overheat abnormally over time.

そこで、第一の系統と第二の系統とに電力を分配する端子台として、特許文献1に記載の端子台が開示されている。特許文献1記載の端子台1は、電線を接続する端子部を上下に分けて、上側の端子部を、入線用電線2aを接続する入線用端子部5aとして設けた構成としている。また、下側の端子部を、送り用電線2bを接続する送り用端子部5bとして設けた。これにより、1つの端子部に1本の電線を接続することができるため、一次送り配線を行う場合でも電線ごとに各端子への確実な接続が可能で、作業性が良く、また、締付けが緩みやすくなるという問題も改善されている。   Then, the terminal block of patent document 1 is disclosed as a terminal block which distributes electric power to a 1st system | strain and a 2nd system | strain. The terminal block 1 described in Patent Document 1 has a configuration in which a terminal portion for connecting an electric wire is divided into upper and lower portions, and an upper terminal portion is provided as an incoming wire terminal portion 5a for connecting an incoming wire 2a. The lower terminal portion was provided as a feeding terminal portion 5b for connecting the feeding wire 2b. As a result, since one electric wire can be connected to one terminal portion, even when primary feed wiring is performed, reliable connection to each terminal is possible for each electric wire, workability is good, and tightening is possible. The problem of easy loosening has also been improved.

さらに、この端子台1では入線用端子部5aと送り用端子部5bとを左右方向にオフセットして設けており、施工後においても、下側の送り用端子部5bが接続した電線によって隠れることがなく、点検時の増締め作業等も容易に行うことができる。   Further, in this terminal block 1, the incoming terminal portion 5a and the feeding terminal portion 5b are provided offset in the left-right direction, and even after construction, the lower feeding terminal portion 5b is hidden by the connected electric wire. No retightening work can be easily performed during inspection.

特開2003−68379号公報JP 2003-68379 A

しかし、特許文献1に開示される端子台においては、入線用端子部5aと送り用端子部5bを左右方向にオフセットして設けたことにより、三つある入線用端子部5a、送り用端子部5bのうち、中極の入線用端子部5aと左極の送り用端子部5bなど、異極の端子間において、左右方向の導体の位置が近接するため、施工時に電線の入線方向が左右方向に曲がった方向で取り付けた場合や、施工後に電線に外力が加わって左右方向にずれた場合等に、異極間の電線が接触して、短絡事故を招く危険性がある。   However, in the terminal block disclosed in Patent Document 1, there are three incoming terminal portions 5a and feeding terminal portions by providing the incoming terminal portion 5a and the feeding terminal portion 5b offset in the left-right direction. 5b, since the positions of the conductors in the left and right directions are close to each other between the terminals of different polarities such as the terminal section 5a for the middle pole and the terminal section 5b for the left pole, the direction of the incoming line of the electric wire is the left and right direction during construction. There is a risk of causing a short circuit accident due to contact between the wires of different poles when they are attached in a bent direction, or when an external force is applied to the wires after construction and they are displaced in the left-right direction.

そこで、本発明は、上記の課題を解決するためになされたもので、短絡事故を防止する安全性の高い端子台を提供することを目的としたものである。   Therefore, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a highly safe terminal block that prevents a short-circuit accident.

本発明に係る端子台は、上述の課題を解決すべく構成されたもので、第1の発明は、上下方向にオフセットして受電電線を接続する上段端子部と送電電線を接続する下段端子部に分けられ、前記上段端子部と前記下段端子部が左右方向にオフセットして設けられた端子体が複数左右方向に並んで配置される端子台であって、前記複数の端子体の間には、前記上段端子部の極間を絶縁するための上段絶縁壁と前記下段端子部の極間を絶縁するための下段絶縁壁が設けられ、該下段絶縁壁は、左右方向の位置を前記上段端子部の電線固定部の左右方向と同じ位置に設定し、下段絶縁壁の高さを前記電線固定部と略同一の高さに設定し、該下段絶縁壁の上面を前記上段端子部に固定する受電電線の支持部として構成し、前記下段絶縁壁の支持部に、受電電線の位置を安定させる凹部を設けるとともに、端子台を被取付体に取り付けるための取付部を設けたことを特徴とするものである。 The terminal block according to the present invention is configured to solve the above-described problem, and the first invention is configured such that an upper terminal portion that connects the power receiving wire with an offset in the vertical direction and a lower terminal portion that connects the power transmitting wire. A terminal block in which the upper terminal portion and the lower terminal portion are provided by being offset in the left-right direction and arranged in a plurality of left-right directions, between the plurality of terminal bodies. An upper insulating wall for insulating between the poles of the upper terminal portion and a lower insulating wall for insulating the poles of the lower terminal portion, and the lower insulating wall is positioned at a position in the left-right direction. Set the same position as the left and right direction of the wire fixing part of the part, set the height of the lower insulating wall to the same height as the electric wire fixing part, and fix the upper surface of the lower insulating wall to the upper terminal part It is configured as a support part of the power receiving wire, and in the support part of the lower insulating wall, Provided with a recess to stabilize the position of DENDEN line and is characterized in that a mounting portion for mounting the terminal block to the attached body.

かかる構成によれば、下段絶縁壁の上面が、上段端子部に固定される受電電線の支持部として構成されているため、該受電電線は下段端子部の方向へ曲がることがない。よって、受電電線の直下の下段端子部に接続する送電電線が異極である場合でも、その異極間の電線の接触が防止されることになる。従って、短絡事故を防ぐことが可能となる。   According to such a configuration, since the upper surface of the lower insulating wall is configured as a support portion for the power receiving wire fixed to the upper terminal portion, the power receiving wire does not bend toward the lower terminal portion. Therefore, even when the power transmission wire connected to the lower terminal portion directly below the power receiving wire has a different polarity, the contact of the wire between the different polarities is prevented. Therefore, it is possible to prevent a short circuit accident.

また、凹部で受電電線を受けることで、下段絶縁壁が該受電電線の台座のような役割を果たし、電線の左右方向へのズレを抑制することが可能となる。従って、下段絶縁壁の支持部の機能がより確実なものとなる。   Further, by receiving the power receiving wire in the concave portion, the lower insulating wall plays a role like a pedestal of the power receiving wire, and it is possible to suppress the displacement of the wire in the left-right direction. Therefore, the function of the support portion of the lower insulating wall becomes more reliable.

また、取付部を下段絶縁壁に設けることで、取付部の幅を下段絶縁壁と共用できる。こうすることで、絶縁壁の左右方向の幅を有効に利用することができ、取付部を別途端子台の外周部に設置することなく端子台を構成することができる。   Further, by providing the mounting portion on the lower insulating wall, the width of the mounting portion can be shared with the lower insulating wall. By doing so, the width in the left-right direction of the insulating wall can be used effectively, and the terminal block can be configured without separately installing the mounting portion on the outer periphery of the terminal block.

第2の発明は、前記第1の発明において、前記取付部は、端子台取付後に、金属製の取付部材が下段絶縁壁上面より突出しないよう凹状に設けられ、該金属製の取付部材と下段絶縁壁上面の間に空間部を設定したことを特徴とするものである。   According to a second invention, in the first invention, the attachment portion is provided in a concave shape so that the metal attachment member does not protrude from the upper surface of the lower insulating wall after the terminal block is attached. A space portion is set between the upper surfaces of the insulating walls.

かかる構成によれば、取付部が下段絶縁壁にあっても、端子台の取付後の電線の導電部と金属製の取付部材との接触を防止でき、かつ、空間部により絶縁距離を確保できるから、安全なものとなる。   According to such a configuration, even if the attachment portion is on the lower insulating wall, contact between the conductive portion of the electric wire after the terminal block is attached and the metal attachment member can be prevented, and an insulation distance can be secured by the space portion. Therefore, it will be safe.

以上の如く、本発明によれば、絶縁壁上面が送り用電線の支持部の役割を果たすため、短絡事故を防止する安全性の高い端子台を提供することができる。   As described above, according to the present invention, since the upper surface of the insulating wall serves as a support portion for the feeding wire, it is possible to provide a highly safe terminal block that prevents a short circuit accident.

端子台の斜視図Perspective view of terminal block 端子体の斜視図Perspective view of terminal body 端子台の正面図Front view of terminal block 図2のAA断面図AA sectional view of FIG. 図2のBB断面図BB sectional view of FIG. 住宅用分電盤に端子台を取り付けた状態を示す図The figure which shows the state which attached the terminal block to the distribution board for houses

以下、本発明の実施形態を図面に基づいて詳細に説明する。尚、以下の好ましい実施形態の説明は、本質的に例示に過ぎず、本発明、その適用物或いはその用途を制限することを意図するものではない。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature, and is not intended to limit the present invention, its application, or its use.

本発明における端子台1Tは、主に、一般家庭の住宅用分電盤13において、電力量計の二次側から供給される電力を、主幹ブレーカを介して各分岐ブレーカへ電力を分配する第一の系統と、主幹ブレーカを介さずに、特定の負荷回路へ直接電力を供給する第二の系統との二つの系統に分配する端子として用いられる。より具体的には、柱上トランスから給電される電源を、主幹ブレーカ14及びその配下の系統と、時間帯別電灯契約用ブレーカの系統との、二系統に分配配線するために設置する。   The terminal block 1T according to the present invention mainly distributes power supplied from the secondary side of the watt-hour meter to each branch breaker via the main breaker in the residential distribution board 13 for ordinary households. It is used as a terminal that distributes to two systems: one system and a second system that supplies power directly to a specific load circuit without going through the main breaker. More specifically, the power source fed from the pole transformer is installed to distribute and distribute the power to two systems of the main breaker 14 and its subordinate system, and the hourly electric power breaker system.

端子台1Tは、図6に示すように、端子台取付具12に取り付けた状態で住宅用分電盤13に組み込み使用する。   As shown in FIG. 6, the terminal block 1 </ b> T is incorporated and used in the residential distribution board 13 while being attached to the terminal block attachment 12.

(端子台の構成)
本発明における端子台1Tは、図1に示すように、端子台ベース2、左極端子体3a、中極端子体3b、右極端子体3c、ブレーカ上側接続部6a、ブレーカ下側接続部6b、二次側絶縁壁7から構成される。
(Terminal block configuration)
As shown in FIG. 1, the terminal block 1T according to the present invention includes a terminal block base 2, a left pole terminal body 3a, a middle pole terminal body 3b, a right pole terminal body 3c, a breaker upper connection portion 6a, and a breaker lower connection portion 6b. The secondary insulating wall 7 is constituted.

端子台ベース2は、左−中極上段絶縁壁41a、中−右極上段絶縁壁41b、左−中極下段絶縁壁42a、中−右極下段絶縁壁42b、周縁部に左側外壁43a、右側外壁43bを設けており、下段絶縁壁42a、42bには凹状に取付部5をそれぞれ有する。また、下段絶縁壁42a、42bの上面42a1、42b1には凹部42a、42b2を設けている。   The terminal block base 2 includes a left-middle pole upper insulating wall 41a, a middle-right pole upper insulating wall 41b, a left-middle pole lower insulating wall 42a, a middle-right pole lower insulating wall 42b, a left outer wall 43a on the periphery, and a right side. An outer wall 43b is provided, and the lower insulating walls 42a and 42b each have a mounting portion 5 in a concave shape. Further, recesses 42a and 42b2 are provided on the upper surfaces 42a1 and 42b1 of the lower insulating walls 42a and 42b.

左極端子体3aは、図2に示すように、電線を接続するための上段端子部31aと下段端子部32aとを上下方向にオフセットして設け、その間を端子接続部33aにより接続している。また、上段端子部31a及び下段端子部32aは、左右方向にオフセットして形成している。上段端子部31aの中央部には受電電線81aの固定部たる上段固定孔311aを有し、下段端子部32aの中央部には送電電線82aの固定部たる下段固定孔321aを有している。   As shown in FIG. 2, the left pole terminal body 3a is provided with an upper terminal portion 31a and a lower terminal portion 32a for connecting wires, which are offset in the vertical direction, and connected therebetween by a terminal connection portion 33a. . Further, the upper terminal portion 31a and the lower terminal portion 32a are formed offset in the left-right direction. A central portion of the upper terminal portion 31a has an upper fixing hole 311a that is a fixing portion of the power receiving wire 81a, and a lower fixing hole 321a that is a fixing portion of the power transmission wire 82a is provided in the central portion of the lower terminal portion 32a.

中極端子体3b及び右極端子体3cは、左極端子体3aと同一の形状であり、それぞれ左極端子体3aと同様に上段端子部31b及び31c、下段端子部32b及び32c、端子接続部33b及び33c、上段固定孔311b及び311c、下段固定孔321b及び321cを有している。   The middle pole terminal body 3b and the right pole terminal body 3c have the same shape as the left pole terminal body 3a. Similarly to the left pole terminal body 3a, the upper terminal portions 31b and 31c, the lower terminal portions 32b and 32c, and the terminal connection It has parts 33b and 33c, upper stage fixing holes 311b and 311c, and lower stage fixing holes 321b and 321c.

左−中極下段絶縁壁42aは、その左右方向の位置を、中極上段端子部31bの中央部に設けられた上段固定孔311bの左右方向の位置と略同じに設定している。また、左−中極下段絶縁壁42aの上面42a1の高さは、中極上段端子部31bと略同一高さに設定している。   The left-middle pole lower insulating wall 42a is set to have a left-right position substantially the same as a left-right position of the upper fixing hole 311b provided at the center of the middle pole upper terminal 31b. Further, the height of the upper surface 42a1 of the left-middle pole lower-stage insulating wall 42a is set to be substantially the same height as the middle pole upper-stage terminal portion 31b.

中−右極下段絶縁壁42bの左右方向の位置も、左−中極下段絶縁壁42aと同様に、右極上段端子部31cの中央部に設けられた上段固定孔311cの左右方向の位置と略同じに設定し、また、中−右極下段絶縁壁42bの上面42b1の高さは、右極上段端子部31cと略同一高さに設定している。   Similarly to the left-middle pole lower insulating wall 42a, the position of the middle-right pole lower insulating wall 42b in the left-right direction is the same as the position of the upper fixing hole 311c provided in the center of the right pole upper terminal 31c in the left-right direction. The upper surface 42b1 of the middle-right pole lower insulating wall 42b is set to be substantially the same height as the right pole upper terminal portion 31c.

ブレーカ上側接続部6aは、左極上段端子部31aと共に、端子ネジ10により螺着固定する。また、ブレーカ下側接続部6bは、右極上段端子部31cと共に、端子ネジ10により螺着固定する。ブレーカ上側接続部6a及びブレーカ下側接続部6bは、このようにして、端子台1Tの二次側に分岐ブレーカを電気的に接続するために設ける。   The breaker upper connection portion 6a is screwed and fixed together with the left pole upper terminal portion 31a by the terminal screw 10. The breaker lower connection portion 6b is screwed and fixed together with the right pole upper terminal portion 31c with the terminal screw 10. In this way, the breaker upper connection portion 6a and the breaker lower connection portion 6b are provided to electrically connect the branch breaker to the secondary side of the terminal block 1T.

二次側絶縁壁7は、ブレーカ上側接続部6aと、該ブレーカ上側接続部6aとは異極となる中極受電電線81b及び右極受電電線81cとを絶縁するために端子台ベース2に取り付けられる。   The secondary-side insulating wall 7 is attached to the terminal block base 2 in order to insulate the breaker upper connection portion 6a from the middle-pole power receiving wire 81b and the right-pole power receiving wire 81c that are different in polarity from the breaker upper connection portion 6a. It is done.

(端子台の取付作業)
端子台1Tの使用者は、まず、端子台取付具12の所定位置に端子台1Tを仮置きしたうえ、端子台1Tの取付部5に金属製の取付部材として取付ネジ11を挿入し、端子台1Tを端子台取付具12に螺着固定する。そして、端子台取付具12を住宅用分電盤13に取り付ける。
(Terminal block installation work)
First, the user of the terminal block 1T temporarily places the terminal block 1T at a predetermined position of the terminal block mounting tool 12, and then inserts a mounting screw 11 as a metal mounting member into the mounting portion 5 of the terminal block 1T. The base 1T is screwed and fixed to the terminal base fixture 12. Then, the terminal block attachment 12 is attached to the residential distribution board 13.

(電線の接続作業)
下段端子部32a、32b、32cに、送電電線82a、82b、82cの一方側を端子ネジ10によりそれぞれ螺着固定する。送電電線82a、82b、82cの他方側は、図6に示すように、主幹ブレーカ14に接続する。
(Wire connection work)
One side of the power transmission wires 82a, 82b, and 82c is screwed and fixed to the lower terminal portions 32a, 32b, and 32c by the terminal screws 10, respectively. The other side of the power transmission wires 82a, 82b, 82c is connected to the main breaker 14 as shown in FIG.

次に、上段端子部31a、31b、31cに、電力量計からの受電電線81a、81b、81cを端子ネジ10によりそれぞれ螺着固定する。端子台1Tへの電線の接続はこれで完了する。   Next, the power receiving wires 81a, 81b, 81c from the watt hour meter are respectively screwed and fixed to the upper terminal portions 31a, 31b, 31c with the terminal screws 10, respectively. This completes the connection of the electric wire to the terminal block 1T.

(取付状態)
端子台取付具12に端子台1Tを取り付けた状態においては、下段絶縁壁42a、42bに凹状に設けられた取付部に、取付ネジ11が嵌まり込む。このとき、下段絶縁壁上面から所定の深さの空間部が設けられているため、図4に示すように、取付ネジ11のネジ頭が取付部5から突出しない。換言すれば、下段絶縁壁の上面から取付ネジ11のネジ頭の間に空間部51を有することにより、施工後、受電電線81b、81cの導電部と取付ネジ11との接触を防止して、且つ、絶縁距離を確保できるため、不要な短絡や地絡自己を防止できるため安全である。
(Mounting state)
In the state where the terminal block 1T is mounted on the terminal block fixture 12, the mounting screw 11 is fitted into the mounting portion provided in a concave shape on the lower insulating walls 42a and 42b. At this time, since the space portion having a predetermined depth is provided from the upper surface of the lower insulating wall, the screw head of the attachment screw 11 does not protrude from the attachment portion 5 as shown in FIG. In other words, by having the space 51 between the upper surface of the lower insulating wall and the screw head of the mounting screw 11, contact between the conductive portion of the power receiving wires 81b and 81c and the mounting screw 11 is prevented after construction. In addition, since the insulation distance can be secured, unnecessary short circuit and ground fault self can be prevented, which is safe.

また、左極受電電線81aは左側外壁43aの上面によって、中極受電電線81bは左−中極下段絶縁壁42aの上面によって、右極受電電線81cは中−右極下段絶縁壁42bの上面によってそれぞれ取付台側への変位が規制されるよう支持される。即ち、受電電線81a、81b、81cが下方向へ曲げられることを抑止される効果が得られる。   In addition, the left pole power receiving wire 81a is formed by the upper surface of the left outer wall 43a, the middle pole power receiving wire 81b is formed by the upper surface of the left-middle pole lower insulating wall 42a, and the right pole power receiving wire 81c is formed by the upper surface of the middle-right pole lower insulating wall 42b. Each is supported so that displacement to the mounting base is restricted. That is, an effect is obtained in which the power receiving wires 81a, 81b, 81c are prevented from being bent downward.

さらに、左−中極下段絶縁壁42aの上面42a1に設けられた凹部42a2により、図5に示すように、左−中極下段絶縁壁42aは中極受電電線81bの左右方向への変位を抑制する台座のような役割を持つ。即ち、中極受電電線81bは左右方向への変位を抑制される効果が得られ、左−中極下段絶縁壁42aの支持力がより確実なものとなる。   Further, the recess 42a2 provided on the upper surface 42a1 of the left-middle pole lower insulation wall 42a causes the left-middle pole lower insulation wall 42a to suppress displacement of the middle pole power receiving wire 81b in the left-right direction as shown in FIG. It has a role like a pedestal. That is, the middle pole power receiving wire 81b has an effect of suppressing displacement in the left-right direction, and the support force of the left-middle pole lower insulating wall 42a is more reliable.

中−右極下段絶縁壁42bについても同様に,上面42b1に設けられた凹部42b2により、右極受電電線81cの左右方向への変位を抑制する台座のような役割をもち、右極受電電線81cは左右方向への変位を抑制される効果が得られ、中−右極下段絶縁壁42bの支持力がより確実なものとなる。
Similarly, the middle-right pole lower-stage insulating wall 42b also functions as a pedestal that suppresses the displacement of the right pole power receiving wire 81c in the left-right direction by the recess 42b2 provided on the upper surface 42b1, and the right pole power receiving wire 81c. The effect of suppressing the displacement in the left-right direction is obtained, and the support force of the middle-right pole lower insulating wall 42b becomes more reliable.

1T 端子台
2 端子台ベース
3a 左極端子体
31a 左極上段端子部
311a 左極上段固定孔
32a 左極下段端子部
321a 左極下段固定孔
33a 左極端子接続部
3b 中極端子体
31b 中極上段端子部
311b 中極上段固定孔
32b 中極下段端子部
321b 中極下段固定孔
33b 中極端子接続部
3c 右極端子体
31c 右極上段端子部
311c 右極上段固定孔
32c 右極下段端子部
321c 右極下段固定孔
33c 右極端子接続部
41a 左−中極上段絶縁壁
41b 中−右極上段絶縁壁
42a 左−中極下段絶縁壁
42b 中−右極下段絶縁壁
43a 左側外壁
43b 右側外壁
44a 左−中極下段絶縁壁上面
44b 中−右極下段絶縁壁上面
45a 左−中極凹部
45b 中−右極凹部
5 取付部
51 空間部
6a ブレーカ上側接続部
6b ブレーカ下側接続部
7 二次側絶縁壁
81a 左極受電電線
81b 中極受電電線
81c 右極受電電線
82a 左極送電電線
82b 中極送電電線
82c 右極送電電線
10 端子ネジ
11 取付ネジ
12 端子台取付具
13 住宅用分電盤
14 主幹ブレーカ


1T Terminal block 2 Terminal block base 3a Left pole terminal body 31a Left pole upper stage terminal part 311a Left pole upper stage fixing hole 32a Left pole lower stage terminal part 321a Left pole lower stage fixing hole 33a Left pole terminal connection part 3b Middle pole terminal body 31b Middle pole top Stage terminal portion 311b Middle pole upper stage fixing hole 32b Middle pole lower stage terminal part 321b Middle pole lower stage fixing hole 33b Middle pole terminal connection part 3c Right pole terminal body 31c Right pole upper stage terminal part 311c Right pole upper stage fixing hole 32c Right pole lower stage terminal part 321c Right pole lower fixing hole 33c Right pole terminal connection part 41a Left-middle pole upper insulation wall 41b Middle-right pole upper insulation wall 42a Left-medium pole lower insulation wall 42b Middle-right pole lower insulation wall 43a Left outer wall 43b Right outer wall 44a Left-middle pole lower insulation wall upper surface 44b Middle-right pole lower insulation wall upper surface 45a Left-middle pole recess 45b Middle-right pole recess 5 Mounting part 51 Space part 6a Breaker upper connection part 6b Breaker Lower side connecting portion 7 Secondary insulation wall 81a Left pole receiving wire 81b Middle pole receiving wire 81c Right pole receiving wire 82a Left pole sending wire 82b Middle pole sending wire 82c Right pole sending wire 10 Terminal screw 11 Mounting screw 12 Terminal block Fixture 13 Residential distribution board 14 Master breaker


Claims (2)

上下方向にオフセットして受電電線を接続する上段端子部と送電電線を接続する下段端子部に分けられ、前記上段端子部と前記下段端子部が左右方向にオフセットして設けられた端子体が複数左右方向に並んで配置される端子台であって、
前記複数の端子体の間には、前記上段端子部の極間を絶縁するための上段絶縁壁と前記下段端子部の極間を絶縁するための下段絶縁壁が設けられ、
該下段絶縁壁は、左右方向の位置を前記上段端子部の電線固定部の左右方向と同じ位置に設定し、下段絶縁壁の高さを前記電線固定部と略同一の高さに設定し、該下段絶縁壁の上面を前記上段端子部に固定する受電電線の支持部として構成し、前記下段絶縁壁の支持部に、受電電線の位置を安定させる凹部を設けるとともに、受電電線の位置を安定させる凹部を設けたことを特徴とする端子台。
There are a plurality of terminal bodies that are divided into an upper terminal portion that is connected in the vertical direction to connect the power receiving wire and a lower terminal portion that is connected to the power transmission wire, and the upper terminal portion and the lower terminal portion are offset in the left-right direction. A terminal block arranged side by side in the left-right direction,
Between the plurality of terminal bodies, an upper insulating wall for insulating between the poles of the upper terminal part and a lower insulating wall for insulating the poles of the lower terminal part are provided,
The lower insulating wall is set to the same position as the left and right direction of the electric wire fixing portion of the upper terminal portion in the left-right direction, and the height of the lower insulating wall is set to substantially the same height as the electric wire fixing portion, The upper surface of the lower insulating wall is configured as a support portion for the power receiving wire that is fixed to the upper terminal portion. The support portion of the lower insulating wall is provided with a recess for stabilizing the position of the power receiving wire, and the position of the power receiving wire is stabilized. A terminal block provided with a recess to be made.
前前記取付部は、端子台取付後に、金属製の取付部材が下段絶縁壁上面より突出しないよう凹状に設けられ、該金属製の取付部材と下段絶縁壁上面の間に空間部を設定したことを特徴とする請求項1記載の端子台。
The front mounting portion is provided in a concave shape so that the metal mounting member does not protrude from the upper surface of the lower insulating wall after the terminal block is mounted, and a space is set between the metal mounting member and the upper surface of the lower insulating wall. The terminal block according to claim 1.
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50151375U (en) * 1974-05-31 1975-12-16
JPS50151374U (en) * 1974-05-31 1975-12-16
JPS6363974U (en) * 1986-10-15 1988-04-27
JP2001167825A (en) * 1999-12-07 2001-06-22 Kawamura Electric Inc Terminal block for primary transmission wire
JP2009268210A (en) * 2008-04-23 2009-11-12 Kawamura Electric Inc Terminal block of house distribution board
JP2013205819A (en) * 2012-03-29 2013-10-07 Sharp Corp Image forming apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50151375U (en) * 1974-05-31 1975-12-16
JPS50151374U (en) * 1974-05-31 1975-12-16
JPS6363974U (en) * 1986-10-15 1988-04-27
JP2001167825A (en) * 1999-12-07 2001-06-22 Kawamura Electric Inc Terminal block for primary transmission wire
JP2009268210A (en) * 2008-04-23 2009-11-12 Kawamura Electric Inc Terminal block of house distribution board
JP2013205819A (en) * 2012-03-29 2013-10-07 Sharp Corp Image forming apparatus

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