JP2005317379A - Terminal structure and terminal structure of circuit breaker - Google Patents

Terminal structure and terminal structure of circuit breaker Download PDF

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JP2005317379A
JP2005317379A JP2004134245A JP2004134245A JP2005317379A JP 2005317379 A JP2005317379 A JP 2005317379A JP 2004134245 A JP2004134245 A JP 2004134245A JP 2004134245 A JP2004134245 A JP 2004134245A JP 2005317379 A JP2005317379 A JP 2005317379A
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terminal
cover
circuit breaker
connection
base
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JP4310230B2 (en
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Masanori Kawamura
昌典 河村
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a terminal structure allowing connection to external terminals having different connection piece intervals to be easily carried out by simply changing each interval between terminals of connection terminals; and to provide a terminal structure of a circuit breaker. <P>SOLUTION: This terminal structure is characteristically provided with: a plurality of the connection terminals 11 arranged in parallel with one another; terminal screw inserting oval holes 11a formed in the connection terminals 11 and elongated in the parallel arrangement direction; terminal screws 13 inserted into the oval holes 11a and nuts 14 screwed to them; a base 1 formed of an insulating material and having a plurality of recessed parts 1a for receiving the connection terminals 11, and spaces 1b and 1bb housing the terminal screws 13 and the nuts 14 and permitting movement in the parallel arrangement direction of the terminal screws 13; a cover 2 mounted on the base 1 while covering the connection terminals 11 and formed of an insulating material; positioning projections 2a formed by being suspended from the lower end of the cover 2 for moving at least one of the terminal screws 13 along the oval hole 11a when the cover 2 is mounted on the base. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

この発明は、外部端子を接続する端子構造および回路遮断器の端子構造に関するものである。   The present invention relates to a terminal structure for connecting an external terminal and a terminal structure for a circuit breaker.

従来の回路遮断器の端子構造は、特許文献１に開示されているように、ベースとカバーで形成された筐体の凹部に接続端子が配設され、この接続端子に外部端子を接触させた状態で端子ねじにより外部端子を挟持するようになされていた。   In the conventional circuit breaker terminal structure, as disclosed in Patent Document 1, a connection terminal is disposed in a concave portion of a casing formed by a base and a cover, and an external terminal is brought into contact with the connection terminal. In this state, the external terminal is clamped by the terminal screw.

特開２００３−３４６６３３（図１）JP2003-346633 (FIG. 1)

従来の回路遮断器の端子構造は以上のように構成されていたので、複数の接続片が一体に形成された外部端子を接続端子に接続する場合、接続片ピッチが異なる外部端子を接続端子に接続することはできなかった。そのため、外部端子の接続片ピッチが異なれば、その都度、そのピッチに合う端子構造を用いなければならないという問題があった。   Since the terminal structure of the conventional circuit breaker has been configured as described above, when connecting an external terminal in which a plurality of connection pieces are integrally formed to the connection terminal, the external terminal having a different connection piece pitch is used as the connection terminal. Could not connect. For this reason, there is a problem that if the connecting piece pitch of the external terminal is different, a terminal structure that matches the pitch must be used each time.

この発明は、上述のような問題を解決するためになされたもので、接続端子の端子間ピッチを簡単に変更し、接続片ピッチの異なる外部端子との接続を容易に行うことのできる端子構造および回路遮断器の端子構造を提供するものである。   The present invention has been made to solve the above-described problems, and is a terminal structure that can easily change the pitch between the terminals of the connecting terminals and easily connect with external terminals having different connecting piece pitches. And a circuit breaker terminal structure.

この発明に係る端子構造は、並設された複数の接続端子、この接続端子に設けられた、並設方向に長い端子ねじ挿通用の長穴、上記長穴に挿通された端子ねじおよびこれに螺合するナット、上記接続端子を受容する複数本の凹部と、上記端子ねじとナットを収容しかつ上記端子ねじが上記長穴に沿って動くことを許す空間とを有する絶縁物からなるベース、上記接続端子を覆って上記ベース上に装着された絶縁物からなるカバー、上記カバーの下端に垂下して設けられ、上記カバーを上記ベースに装着するとき、上記端子ねじの少なくとも一個を上記長穴に沿って移動させる位置決め突起を備えたものである。   A terminal structure according to the present invention includes a plurality of connection terminals arranged in parallel, a long hole for insertion of a terminal screw long in the parallel arrangement direction provided in the connection terminal, a terminal screw inserted through the long hole, and A base made of an insulator having a nut to be screwed, a plurality of recesses for receiving the connection terminal, and a space for accommodating the terminal screw and the nut and allowing the terminal screw to move along the elongated hole; A cover made of an insulating material that covers the connection terminal and is mounted on the base. The cover is suspended from the lower end of the cover. When the cover is mounted on the base, at least one of the terminal screws is inserted into the elongated hole. It is provided with positioning protrusions that are moved along.

また、この発明に係る回路遮断器の端子構造は、遮断器機構部、上記遮断器機構部から並列に延出する複数の接続端子、この接続端子に設けられた並設方向に長い端子ねじ挿通用の長穴、上記長穴に挿通された端子ねじおよびこれに螺合するナット、上記接続端子を受容する複数本の凹部と、上記端子ねじとナットを収容しかつ上記端子が上記長穴に沿って動くことを許す空間とを有する絶縁物からなるベース、上記遮断器機構部および上記接続端子を覆って上記ベース上に装着された絶縁物からなるカバー、上記カバーの下端に垂下して設けられ、上記カバーを上記ベースに装着するとき、上記端子ねじの少なくとも一個を上記長穴に沿って移動させる位置決め突起を備えたものである。   The terminal structure of the circuit breaker according to the present invention includes a circuit breaker mechanism section, a plurality of connection terminals extending in parallel from the circuit breaker mechanism section, and a terminal screw inserted long in the juxtaposition direction provided on the connection terminals. A general long hole, a terminal screw inserted into the long hole and a nut screwed into the long hole, a plurality of recesses for receiving the connection terminal, the terminal screw and the nut, and the terminal in the long hole A base made of an insulating material having a space allowing movement along, a cover made of an insulating material that covers the circuit breaker mechanism and the connection terminal, and is suspended from the lower end of the cover. And a positioning projection that moves at least one of the terminal screws along the elongated hole when the cover is attached to the base.

この発明に係る端子構造および回路遮断器の端子構造は、カバーをベースに装着する際に、カバーの位置決め突起により端子ねじを移動させて端子ピッチを自動的に変更できるようにしているので、端子間ピッチの異なる端子構造を別個に準備する必要がなく、外部端子と接続端子との接続作業が簡単に行える。   The terminal structure according to the present invention and the terminal structure of the circuit breaker enable the terminal pitch to be automatically changed by moving the terminal screw by the positioning projection of the cover when the cover is mounted on the base. There is no need to separately prepare terminal structures with different pitches, and the connection work between the external terminals and the connection terminals can be performed easily.

実施の形態１．
図１はこの発明の実施の形態１に係る回路遮断器の端子構造を示す斜視図、図２は図１の分解斜視図、図３は図２の端子部の拡大斜視図、図４は図２のベースの拡大斜視図、図５は図１のＡ−Ａ線に沿う断面図で、（ａ）（ｂ）は端子間ピッチが異なる場合を示す図である。 Embodiment 1 FIG.
1 is a perspective view showing a terminal structure of a circuit breaker according to Embodiment 1 of the present invention, FIG. 2 is an exploded perspective view of FIG. 1, FIG. 3 is an enlarged perspective view of a terminal portion of FIG. 2, and FIG. 2 is an enlarged perspective view of the base 2, FIG. 5 is a cross-sectional view taken along the line AA in FIG. 1, and FIGS.

図において、回路遮断器１００はそれぞれ絶縁物からなるベース１と、これに装着されたカバー２で形成された筺体と、この筺体に収納された遮断器機構部１０とを備えている。遮断器機構部１０からは所定の間隔で複数（本例では３個）の接続端子１１が延出して設けられている。図３により詳細に示すように、この接続端子１１には、隣接する接続端子の方向に長い長孔１１ａが設けられ、この長孔１１ａには後述する外部端子の接続片を挟持する端子ねじ１３が挿通される。端子ねじ１３は、このねじに遊びがないように挿通された端子押え１２を有している。端子押え１２は４角形をしており、その四辺の上縁にテーパ部１２ａが形成されている。端子ねじ１３は４角または６角形状のナット１４に螺合し、接続端子１１上に載置される後述する外部端子の接続片を端子押え１２と接続端子１１との間に締め付け挟持する。   In the figure, a circuit breaker 100 includes a base 1 made of an insulating material, a housing formed of a cover 2 attached thereto, and a circuit breaker mechanism 10 housed in the housing. A plurality (three in this example) of connection terminals 11 are provided extending from the circuit breaker mechanism 10 at a predetermined interval. As shown in more detail in FIG. 3, this connection terminal 11 is provided with a long hole 11a in the direction of the adjacent connection terminal, and a terminal screw 13 for holding a connection piece of an external terminal described later in this long hole 11a. Is inserted. The terminal screw 13 has a terminal presser 12 inserted so that there is no play in the screw. The terminal retainer 12 has a quadrangular shape, and a tapered portion 12a is formed at the upper edge of the four sides. The terminal screw 13 is screwed into a square or hexagonal nut 14, and a connection piece of an external terminal (described later) placed on the connection terminal 11 is clamped between the terminal retainer 12 and the connection terminal 11.

外部端子４は上記接続端子１１にそれぞれ接続される複数（本例では３個）の接続片４ａが一体に形成されている。   The external terminal 4 is integrally formed with a plurality (three in this example) of connection pieces 4a connected to the connection terminal 11, respectively.

回路遮断器１００のベース１には、遮断器機構部１０をベース１と組み合わせたとき、接続端子１１を収容する３本の凹部１ａが、接続端子１１の動きを規制する隔壁１ｃに区画されて設けられている。各区画された凹部１ａの底には、ナット１４の回転を抑えかつナット１４が隣接する凹部の方向、すなわち長穴１１ａに沿う方向へ動くことを許すナット保持穴１ｂが設けられている。さらに、このナット保持穴１ｂの底には、ナット１４より突き出た端子ねじ１３の下端が、隣接する凹部の方向に動ける程度の穴１ｂｂが形成されている。このナット保持穴１ｂの平面は図４に示されている。   In the base 1 of the circuit breaker 100, when the circuit breaker mechanism portion 10 is combined with the base 1, three recesses 1a for accommodating the connection terminals 11 are partitioned into partition walls 1c that restrict the movement of the connection terminals 11. Is provided. A nut holding hole 1b that suppresses the rotation of the nut 14 and allows the nut 14 to move in the direction of the adjacent recess, that is, the direction along the elongated hole 11a, is provided at the bottom of each partitioned recess 1a. Further, a hole 1bb is formed at the bottom of the nut holding hole 1b so that the lower end of the terminal screw 13 protruding from the nut 14 can move in the direction of the adjacent recess. The plane of the nut holding hole 1b is shown in FIG.

遮断器機構部１０および接続端子１１部分を上方から覆うカバー２の中央には、遮断器機構部１０を手動で操作するハンドル３が設けられている。カバー２の、接続端子１１を覆う部分は、端子ねじ１３の頭部を捻るねじ回しを通す穴２ｃを備えているが、この穴２ｃは下方が端子ねじ１３の頭部より大きく広げられ、ねじ１３が隣接するねじの方向、すなわち接続端子１３の並設方向、つまり図で左右に移動できるようになされている。カバー２には、このカバー２をベース１と組み合わせたとき、端子ねじ１３の位置を決める位置決め突起２ａが垂下してカバー２の両側にカバーに一体に設けられ、この位置決め突起２ａはベース１の両外側に設けられた隔壁１ｃの内側に嵌り込む（図５（ａ）に示す場合）。位置決め突起２ａが設けられる位置は、端子ねじ１３が設けられている位置に合わせてある。位置決め突起２ａの下端の内縁にはテーパ部２ｂが形成され、このテーパ部２ｂが端子押え１２のテーパ部１２ａと接するようになされている。   A handle 3 for manually operating the circuit breaker mechanism 10 is provided in the center of the cover 2 that covers the circuit breaker mechanism 10 and the connection terminal 11 from above. The portion of the cover 2 that covers the connection terminal 11 is provided with a hole 2c through which a screwdriver for twisting the head of the terminal screw 13 is passed. The hole 2c is widened downward from the head of the terminal screw 13, and the screw 2 13 can be moved in the direction of adjacent screws, that is, in the direction in which the connection terminals 13 are arranged, that is, in the drawing to the left and right. When the cover 2 is combined with the base 1, a positioning projection 2 a that determines the position of the terminal screw 13 hangs down and is provided integrally with the cover 2 on both sides of the cover 2. It fits inside the partition 1c provided on both outer sides (in the case shown in FIG. 5 (a)). The position where the positioning projection 2a is provided is matched with the position where the terminal screw 13 is provided. A tapered portion 2b is formed at the inner edge of the lower end of the positioning projection 2a, and this tapered portion 2b is in contact with the tapered portion 12a of the terminal retainer 12.

図５（ａ）に示したカバー２と交換可能なカバーとして、図５（ｂ）に示すカバー２Ａを準備する。カバー２と２Ａとの違いは、カバー２Ａでは、位置決め突起２Ａａがベース１の内側の隔壁１ｃと接し、そのテーパ部２Ａｂが両側に位置するねじの内側にくるようになされている点にある。   As a cover exchangeable with the cover 2 shown in FIG. 5A, a cover 2A shown in FIG. 5B is prepared. The difference between the cover 2 and 2A is that, in the cover 2A, the positioning projection 2Aa is in contact with the inner partition 1c of the base 1, and the tapered portion 2Ab is located inside the screw located on both sides.

次に、以上のように構成された回路遮断器の端子構造の組立てについて説明する。
（１）ナット１４をベース１に形成されたナット保持穴１ｂに挿入する。
（２）遮断器機構部１０をベース１上に置く。この時、接続端子１１が凹部１ａに嵌り込む。
（３）端子押え１２を端子ねじ１３に挿通した状態で端子ねじ１３を、接続端子１１の長孔１１ａに嵌挿させた後、ナット１４に螺合させて締め付け方向に回す。このとき、ナット１４の外形は４角または６角形に形成されているので穴１ｂにより回転が規制され、端子ねじ１３はナット１４に確実に締め込むことができる。なお、端子ねじ１３と端子押え１２とナット１４は、長穴１１ａに沿って移動できる程度に緩めておく。 Next, the assembly of the terminal structure of the circuit breaker configured as described above will be described.
(1) The nut 14 is inserted into the nut holding hole 1b formed in the base 1.
(2) Place the circuit breaker mechanism 10 on the base 1. At this time, the connection terminal 11 is fitted into the recess 1a.
(3) After the terminal retainer 12 is inserted into the terminal screw 13, the terminal screw 13 is inserted into the elongated hole 11a of the connection terminal 11, and is then screwed into the nut 14 and turned in the tightening direction. At this time, since the outer shape of the nut 14 is formed in a quadrangular or hexagonal shape, the rotation is restricted by the hole 1 b, and the terminal screw 13 can be securely fastened to the nut 14. The terminal screw 13, the terminal retainer 12, and the nut 14 are loosened to such an extent that they can move along the elongated hole 11a.

（４）ベース１にカバー２を装着する。この時、カバー２の位置決め突起２ａに形成されたテーパ部２ｂが端子押え１２に形成されたテーパ部１２ａに当接してこれを押すため、両側に位置する端子ねじ１３は長孔１１ａをそれぞれ内側（図５（ａ）の場合）に移動して端子間ピッチがＬ１に自動的に設定される。また、ベース１にカバー２Ａを装着した場合には、カバー２Ａの位置決め突起２Ａａに形成されたカバーテーパ部２Ａｂが、両側の端子ねじの端子押え１２に形成されたテーパ部１２ａに当接してこれを押すため、両側に位置する端子ねじ１３は長孔１１ａに沿ってそれぞれ外側（図５（ｂ）の場合）に移動して端子間ピッチがＬ２に自動的に設定される。
（５）端子間ピッチがＬ１またはＬ２の外部端子４の接続片４ａを接続端子１１と端子押え１２との間に挿入した後、カバー２または２Ａの穴２ｃまたは２Ａｃからねじ回しで端子ねじ１３を回すことにより接続片４ａを接続端子１１に締め付け固定する。 (4) Mount the cover 2 on the base 1. At this time, since the tapered portion 2b formed on the positioning projection 2a of the cover 2 abuts against and presses the tapered portion 12a formed on the terminal retainer 12, the terminal screws 13 located on both sides have the long holes 11a on the inside. Moving to (in the case of FIG. 5A), the pitch between terminals is automatically set to L1. When the cover 2A is attached to the base 1, the cover taper portion 2Ab formed on the positioning projection 2Aa of the cover 2A comes into contact with the taper portion 12a formed on the terminal retainers 12 of the terminal screws on both sides. Therefore, the terminal screws 13 located on both sides are moved outward (in the case of FIG. 5B) along the long holes 11a, and the inter-terminal pitch is automatically set to L2.
(5) After inserting the connection piece 4a of the external terminal 4 with the terminal pitch L1 or L2 between the connection terminal 11 and the terminal retainer 12, the terminal screw 13 is screwed through the hole 2c or 2Ac of the cover 2 or 2A. The connection piece 4a is fastened and fixed to the connection terminal 11 by turning.

以上のように、この発明の実施の形態１における回路遮断器の端子構造によれば、複数の接続片が一体になっている外部端子で、端子間ピッチが異なるものを接続端子１１にねじ止め接続する場合、その外部端子に対応するカバー２または２Ａのいずれかを選択してベース１と組み合わせるだけで接続端子１１の端子ねじ１３のピッチが自動的に設定できるため、接続作業が極めて簡単になる。   As described above, according to the terminal structure of the circuit breaker according to the first embodiment of the present invention, external terminals having a plurality of connecting pieces integrated and screwed to connecting terminals 11 with different pitches between terminals. When connecting, the pitch of the terminal screw 13 of the connection terminal 11 can be automatically set simply by selecting either the cover 2 or 2A corresponding to the external terminal and combining it with the base 1, making the connection work extremely easy. Become.

実施の形態２．
図６はこの発明の実施の形態２に係る回路遮断器の端子構造を示す分解斜視図、図７は図６のＢ−Ｂ線に沿う断面図で、（ａ）（ｂ）は端子間ピッチが異なる場合を示す。図中、図１〜図５と同一の要素には同一の符号を付して詳細な説明を省略する。図において、本実施の形態に係る回路遮断器の端子構造１０１が実施の形態１の回路遮断器の端子構造１００と異なる点は、図１に示すカバー２を、遮断器機構部１０を覆う第１のカバー２０と接続端子を覆う第２のカバー２１とに分離した点である。 Embodiment 2. FIG.
6 is an exploded perspective view showing a terminal structure of a circuit breaker according to Embodiment 2 of the present invention, FIG. 7 is a sectional view taken along line BB in FIG. 6, and (a) and (b) are pitches between terminals. Shows different cases. In the figure, the same elements as those in FIGS. 1 to 5 are denoted by the same reference numerals, and detailed description thereof is omitted. In the figure, the circuit breaker terminal structure 101 according to the present embodiment differs from the circuit breaker terminal structure 100 according to the first embodiment in that the cover 2 shown in FIG. It is the point which isolate | separated into the 1st cover 20 and the 2nd cover 21 which covers a connection terminal.

第２のカバー２１の接続端子１１を覆う部分には、端子ねじ１３の頭部を捻るねじ回しを通す穴２１ｃを備えているが、この穴２１ｃは下方が端子ねじ１３の頭部よりかなり大きく広げられ、ねじ１３が隣接のねじの方向つまり図で左右に移動できるようになされている。第２のカバー２１には、位置決め突起２１ａが第２のカバー２１から垂下して両側に一体に設けられ、この位置決め突起２１ａは、第２のカバー２１をベース１に装着したとき、ベース１の両外側に設けられた隔壁１ｃの内側に嵌り込む（図７（ａ）に示す場合）。位置決め突起２１ａは端子ねじ１３の側方に位置するように配置されるとともに、位置決め突起２１ａの下端の内縁にはテーパ部２１ｂが形成されている。   The portion of the second cover 21 covering the connection terminal 11 is provided with a hole 21c through which a screwdriver for twisting the head of the terminal screw 13 is passed. The hole 21c is considerably larger below the head of the terminal screw 13. The screw 13 is widened so that the screw 13 can move in the direction of the adjacent screw, that is, in the drawing to the left and right. The second cover 21 is provided with positioning protrusions 21 a that are suspended from the second cover 21 and integrally provided on both sides. The positioning protrusions 21 a are formed on the base 1 when the second cover 21 is attached to the base 1. It fits inside the partition 1c provided on both outer sides (in the case shown in FIG. 7A). The positioning projection 21a is disposed so as to be located on the side of the terminal screw 13, and a tapered portion 21b is formed on the inner edge of the lower end of the positioning projection 21a.

図７（ａ）に示す第２のカバー２１と交換可能なカバーとして、図７（ｂ）に示す第２のカバー２１Ａを準備する。第２のカバー２１と２１Ａとの違いは、第２のカバー２１Ａでは、位置決め突起２１Ａａがベース１の内側の隔壁１ｃと接し、そのテーパ部２１Ａｂが両側のねじの内側にくるようになされている点にある。   As a cover replaceable with the second cover 21 shown in FIG. 7A, a second cover 21A shown in FIG. 7B is prepared. The difference between the second cover 21 and 21A is that in the second cover 21A, the positioning projection 21Aa is in contact with the inner partition 1c of the base 1, and the tapered portion 21Ab is inside the screws on both sides. In the point.

次に以上のように構成されたこの発明の実施の形態２における回路遮断器の端子構造の組立てについて説明する。
（１）遮断器機構部（図示しない）をベース１上に置き、その上を第１のカバー２０で覆う。この時、接続端子１１が凹部１ａに嵌り込む。
（２）ナット１４をベース１に形成されたナット保持穴１ｂに挿入する。
（３）端子押え１２を端子ねじ１３に挿通した状態で端子ねじ１３を長孔１１ａに嵌挿させた後、ナット１４に螺合させて締め付け方向に回動する。この時、端子ねじ１３と端子押え１２とナット１４が隣接する他の接続端子の方向へ移動できる程度に緩めておく。 Next, assembly of the circuit breaker terminal structure according to the second embodiment of the present invention configured as described above will be described.
(1) A circuit breaker mechanism (not shown) is placed on the base 1 and covered with the first cover 20. At this time, the connection terminal 11 is fitted into the recess 1a.
(2) The nut 14 is inserted into the nut holding hole 1b formed in the base 1.
(3) After the terminal retainer 12 is inserted into the terminal screw 13, the terminal screw 13 is inserted into the elongated hole 11a, and is then screwed into the nut 14 and rotated in the tightening direction. At this time, the terminal screw 13, the terminal retainer 12 and the nut 14 are loosened to such an extent that they can move in the direction of other adjacent connection terminals.

（４）ベース１に第２のカバー２１を装着する。この時、第２のカバー２１の位置決め突起２１ａに形成されたテーパ部２１ｂが端子押え１２に形成されたテーパ部１２ａに当接してこれを押すため、両側に位置する端子ねじ１３は長孔１１ａに沿ってそれぞれ内側（図７（ａ）の場合）に移動し、端子間ピッチがＬ３に自動的に設定される。また、ベース１にカバー２１Ａを装着した場合には、カバー２１Ａの位置決め突起２１Ａａに形成されたテーパ部２１Ａｂが両側の端子ねじの端子押え１２に形成されたテーパ部１２ａに当接してこれを押すため、両側に位置する端子ねじ１３は長孔１１ａに沿ってそれぞれ外側（図５（ｂ）の場合）に移動し、端子間ピッチがＬ４に自動的に設定される。
（５）端子間ピッチがＬ３またはＬ４の外部端子４の接続片４ａを接続端子１１と端子押え１２との間に挿入した後、カバー２１または２１Ａの穴２１ｃまたは２１Ａｃからねじ回しで端子ねじ１３を回動することにより接続片４ａを接続端子１１に締め付け固定する。 (4) Mount the second cover 21 on the base 1. At this time, since the tapered portion 21b formed on the positioning projection 21a of the second cover 21 abuts against and presses the tapered portion 12a formed on the terminal retainer 12, the terminal screws 13 located on both sides are elongated holes 11a. Are moved inward (in the case of FIG. 7A), and the pitch between the terminals is automatically set to L3. When the cover 21A is attached to the base 1, the tapered portion 21Ab formed on the positioning projection 21Aa of the cover 21A comes into contact with and presses the tapered portion 12a formed on the terminal retainers 12 of the terminal screws on both sides. Therefore, the terminal screws 13 positioned on both sides move outward (in the case of FIG. 5B) along the long holes 11a, and the inter-terminal pitch is automatically set to L4.
(5) After inserting the connection piece 4a of the external terminal 4 having the terminal pitch L3 or L4 between the connection terminal 11 and the terminal retainer 12, the terminal screw 13 is screwed through the hole 21c or 21Ac of the cover 21 or 21A. , And the connection piece 4a is fastened and fixed to the connection terminal 11.

以上のように、この発明の実施の形態２における回路遮断器の端子構造によれば、必要とする端子間ピッチ（Ｌ３、Ｌ４）に対応した第２のカバー２１または２１Ａをベース１に装着することによって、容易に端子ねじ１３を所定の端子間ピッチに設定することができ、第２のカバー２１または２１Ａが第１のカバー２０とは別体になっているので、回路遮断器が装着されている状態でも第２のカバー２１または２１Ａを交換することにより端子ねじ１３の位置を所定の端子間ピッチに変更することができる。   As described above, according to the terminal structure of the circuit breaker according to the second embodiment of the present invention, the second cover 21 or 21A corresponding to the required inter-terminal pitch (L3, L4) is attached to the base 1. Thus, the terminal screw 13 can be easily set to a predetermined inter-terminal pitch, and the second cover 21 or 21A is separate from the first cover 20, so that the circuit breaker is mounted. Even in this state, the position of the terminal screw 13 can be changed to a predetermined inter-terminal pitch by exchanging the second cover 21 or 21A.

この発明は回路遮断器の端子構造はもとより、各種電気機器に使用される端子構造に利用可能である。   The present invention is applicable not only to a terminal structure of a circuit breaker but also to a terminal structure used in various electric devices.

この発明の実施の形態１に係る端子構造を示す斜視図である。It is a perspective view which shows the terminal structure which concerns on Embodiment 1 of this invention. 実施の形態１に係る端子構造を示す分解斜視図である。3 is an exploded perspective view showing a terminal structure according to Embodiment 1. FIG. 実施の形態１に係る端子構造の端子部を拡大して示す斜視図である。4 is an enlarged perspective view showing a terminal portion of the terminal structure according to Embodiment 1. FIG. 実施の形態１に係る端子構造のベースの要部を拡大して示す平面図である。3 is an enlarged plan view showing a main part of the base of the terminal structure according to Embodiment 1. FIG. 図１のＡ−Ａ線に沿う断面図で、（ａ）（ｂ）は端子間ピッチが異なるものを示す。It is sectional drawing which follows the AA line of FIG. 1, (a) (b) shows the thing from which the pitch between terminals differs. この発明の実施の形態２に係る端子構造を示す分解斜視図である。It is a disassembled perspective view which shows the terminal structure which concerns on Embodiment 2 of this invention. 図６のＢ−Ｂ線に沿う断面図で、（ａ）（ｂ）は端子間ピッチが異なるものを示す。It is sectional drawing which follows the BB line of FIG. 6, (a) (b) shows what differs in the pitch between terminals.

符号の説明Explanation of symbols

１ ベース、 １ｂ ナット保持穴、
１ｂｂ 穴、 １ｃ 隔壁、
２、２Ａ カバー、
２ａ、２Ａａ 位置決め突起、
２ｂ、２Ａｂ テーパ部、
２ｃ、２Ａｃ 穴、
３ ハンドル、 ４ 外部端子、
４ａ 接続片、 １０ 遮断機構部、
１１ 接続端子、 １１ａ 長孔、
１２ 端子押え、 １２ａ テーパ部、
１３ 端子ねじ、 １４ ナット、
２０ 第１のカバー、
２１、２１Ａ 第２のカバー、
２１ａ、２１Ａａ 位置決め突起、
２１ｂ、２１Ａｂ テーパ部、
２１ｃ、２１Ａｃ 穴、
１００ 回路遮断器、 １０１ 回路遮断器。
1 Base, 1b Nut holding hole,
1bb hole, 1c bulkhead,
2, 2A cover,
2a, 2Aa positioning protrusion,
2b, 2Ab taper part,
2c, 2Ac holes,
3 Handle, 4 External terminal,
4a connection piece, 10 blocking mechanism,
11 connection terminal, 11a long hole,
12 terminal holder, 12a taper part,
13 terminal screws, 14 nuts,
20 first cover,
21, 21A second cover,
21a, 21Aa positioning protrusion,
21b, 21Ab taper part,
21c, 21Ac hole,
100 circuit breaker, 101 circuit breaker.

Claims (6)

並設された複数の接続端子、この接続端子に設けられた、並設方向に長い端子ねじ挿通用の長穴、上記長穴に挿通された端子ねじおよびこれに螺合するナット、上記接続端子を受容する複数本の凹部と、上記端子ねじとナットを収容しかつ上記端子ねじが上記長穴に沿って動くことを許す空間とを有する絶縁物からなるベース、上記接続端子を覆って上記ベース上に装着された絶縁物からなるカバー、上記カバーの下端に垂下して設けられ、上記カバーを上記ベースに装着するとき、上記端子ねじの少なくとも一個を上記長穴に沿って移動させる位置決め突起を備えたことを特徴とする端子構造。   A plurality of connection terminals arranged in parallel, a long hole for inserting a terminal screw long in the parallel arrangement direction provided in this connection terminal, a terminal screw inserted through the long hole, and a nut screwed into the terminal screw, the connection terminal A base made of an insulator having a plurality of recesses for receiving the terminal screw, a space for accommodating the terminal screw and the nut and allowing the terminal screw to move along the elongated hole, and the base covering the connection terminal A cover made of an insulating material mounted on the top of the cover, and a positioning protrusion provided to hang from the lower end of the cover, and for moving at least one of the terminal screws along the elongated hole when the cover is mounted on the base. Terminal structure characterized by comprising. 遮断器機構部、上記遮断器機構部から並列に延出する複数の接続端子、この接続端子に設けられた並設方向に長い端子ねじ挿通用の長穴、上記長穴に挿通された端子ねじおよびこれに螺合するナット、上記接続端子を受容する複数本の凹部と、上記端子ねじとナットを収容しかつ上記端子が上記長穴に沿って動くことを許す空間とを有する絶縁物からなるベース、上記遮断器機構部および上記接続端子を覆って上記ベース上に装着された絶縁物からなるカバー、上記カバーの下端に垂下して設けられ、上記カバーを上記ベースに装着するとき、上記端子ねじの少なくとも一個を上記長穴に沿って移動させる位置決め突起を備えたことを特徴とする回路遮断器の端子構造。   Circuit breaker mechanism, a plurality of connection terminals extending in parallel from the circuit breaker mechanism, a long hole for inserting a terminal screw long in the parallel direction provided on the connection terminal, a terminal screw inserted through the long hole And an insulator having a nut to be screwed thereto, a plurality of recesses for receiving the connection terminal, and a space for accommodating the terminal screw and the nut and allowing the terminal to move along the elongated hole. A cover made of an insulating material that covers the base, the circuit breaker mechanism, and the connection terminal, and is suspended from the lower end of the cover. When the cover is attached to the base, the terminal A terminal structure for a circuit breaker comprising a positioning projection for moving at least one of the screws along the elongated hole. 上記接続端子は、３個並設され、上記位置決め突起は、両外側の接続端子に設けられた端子ねじを上記長穴に沿って内方向または外方向のいずれかに移動させるように上記カバーに設けられていることを特徴とする請求項１に記載の端子構造または請求項２に記載の回路遮断器の端子構造。   Three of the connection terminals are arranged side by side, and the positioning protrusions are provided on the cover so that the terminal screws provided on the outer connection terminals are moved inward or outward along the elongated holes. The terminal structure according to claim 1, or the terminal structure of a circuit breaker according to claim 2, wherein the terminal structure is provided. 上記ベースは、上記ナットを収容する空間がナットの回り止め形状になされていることを特徴とする請求項１に記載の端子構造または請求項２に記載の回路遮断器の端子構造。   The terminal structure according to claim 1 or the terminal structure of a circuit breaker according to claim 2, wherein the base has a space in which the nut is accommodated to prevent the nut from rotating. 上記位置決め突起は、下端部が上記端子ねじまたは端子ねじに装着された端子押えに接触するものであり、その接触部がテーパ状に形成されていることを特徴とする請求項１に記載の端子構造または請求項２に記載の回路遮断器の端子構造。   2. The terminal according to claim 1, wherein the positioning protrusion has a lower end portion that contacts the terminal screw or a terminal presser attached to the terminal screw, and the contact portion is formed in a tapered shape. The terminal structure of a circuit breaker according to claim 2 or the structure. 上記カバーは、上記遮断器機構部を覆う第１のカバーと、上記接続端子を覆う第２のカバーとに分割されていることを特徴とする請求項２に記載の回路遮断器の端子構造。   3. The circuit breaker terminal structure according to claim 2, wherein the cover is divided into a first cover that covers the circuit breaker mechanism and a second cover that covers the connection terminal.
JP2004134245A 2004-04-28 2004-04-28 Terminal structure and terminal structure of circuit breaker Expired - Fee Related JP4310230B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
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CN101996825A (en) * 2009-08-07 2011-03-30 三菱电机株式会社 Circuit breaker
KR200470503Y1 (en) 2012-12-05 2013-12-19 엘에스산전 주식회사 Case structure of circuit breaker

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WO2014141323A1 (en) * 2013-03-15 2014-09-18 三菱電機株式会社 Terminal structure, terminal structure for circuit breaker, and method for selecting terminal
CN105023812A (en) * 2015-07-13 2015-11-04 国家电网公司 Unilateral residual current operated circuit breaker installation base
CN105070598B (en) * 2015-07-16 2019-05-10 广东万江配电有限公司 A kind of novel breaker
KR101785170B1 (en) * 2015-12-17 2017-10-13 신재식 Terminal frame of a power distributer for a street furniture and A power distributer
CN106298385B (en) * 2016-10-14 2018-07-31 沈阳北方防爆股份有限公司 A kind of convenient for wiring earth leakage protective device

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US6480082B1 (en) * 1996-12-25 2002-11-12 Hitachi, Ltd. Circuit breaker
JP3886667B2 (en) * 1999-05-31 2007-02-28 三菱電機株式会社 Circuit breaker

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Publication number Priority date Publication date Assignee Title
CN101996825A (en) * 2009-08-07 2011-03-30 三菱电机株式会社 Circuit breaker
KR200470503Y1 (en) 2012-12-05 2013-12-19 엘에스산전 주식회사 Case structure of circuit breaker

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