JP5182875B2 - Circuit breaker terminal structure - Google Patents

Circuit breaker terminal structure Download PDF

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JP5182875B2
JP5182875B2 JP2008190864A JP2008190864A JP5182875B2 JP 5182875 B2 JP5182875 B2 JP 5182875B2 JP 2008190864 A JP2008190864 A JP 2008190864A JP 2008190864 A JP2008190864 A JP 2008190864A JP 5182875 B2 JP5182875 B2 JP 5182875B2
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terminal
circuit breaker
insertion hole
electric wire
conductive bar
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JP2010027557A (en
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裕史 伊藤
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河村電器産業株式会社
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Description

本発明は、ケースの上面に設けた電路を開閉する操作ハンドル、一方の面に設けた複数の電源側端子、及び他方の面に設けた複数の負荷側端子を備えた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 circuit breaker terminal structure including an operation handle for opening and closing an electric circuit provided on an upper surface of a case, a plurality of power supply side terminals provided on one surface, and a plurality of load side terminals provided on the other surface. It is about.

回路遮断器の端子の方式としては、導体を端子部にねじ止めして接続するねじ式端子、電線をばね体等により鎖錠し、差し込むだけで接続する速結端子、導電バーを端子内部に配置したばね体等により挟持させるプラグイン式端子といったものがある。従来は、電源側端子と負荷側端子にどれか一つの方式の端子を採用していた。
特開２００６−９２９７９号公報 Circuit breaker terminals include screw terminals that are connected by screwing conductors to the terminals, fast connection terminals that are connected by simply locking the wires with springs, etc., and connecting bars inside the terminals. There is a plug-in type terminal that is clamped by an arranged spring body or the like. Conventionally, any one of the terminals has been adopted for the power supply side terminal and the load side terminal.
JP 2006-92979 A

例えば、電源側端子がプラグイン式端子で、負荷側端子が速結端子の回路遮断器の場合、電源側端子に接続されるのは導電バーであり、負荷側端子に接続されるのは電線でなくては、構造上できず、端子の方式に合わせて導体が決定されてしまう。回路遮断器の表面に銘板等表示がされている場合、電源側端子と負荷側端子とがそれぞれ決まっているので、分電盤に組み込んだときに、表示が逆向きになってしまうことがあった。また、導体が速結端子の端子口より太い電線である場合には、速結端子に差し込むことができないという制約があった。   For example, when the power supply side terminal is a plug-in type terminal and the load side terminal is a circuit breaker with a quick connection terminal, the conductive side is connected to the power supply side terminal, and the wire is connected to the load side terminal. Otherwise, the structure is not possible, and the conductor is determined in accordance with the terminal system. When the nameplate etc. is displayed on the surface of the circuit breaker, the power supply side terminal and the load side terminal are determined respectively, so the display may be reversed when installed in the distribution board. It was. Further, when the conductor is an electric wire thicker than the terminal port of the quick connection terminal, there is a restriction that the conductor cannot be inserted into the quick connection terminal.

そこで本発明は部品点数を増やすことなく、速結端子とプラグイン式端子を併設した回路遮断器の端子構造を提供することを目的とし、その構造は、端子部には、上下に電線挿入孔と導電バー挿入孔とを配置し、端子部内部には電線挿入孔と導電バー挿入孔との間にばね体を設け、ばね体の上側と下側とそれぞれに電線又は導電バーのどちらかを保持可能としたことを特徴とする。   Therefore, the present invention has an object to provide a circuit breaker terminal structure in which a quick connection terminal and a plug-in type terminal are provided without increasing the number of parts, and the structure has a wire insertion hole vertically in the terminal portion. And a conductive bar insertion hole, a spring body is provided between the electric wire insertion hole and the conductive bar insertion hole inside the terminal portion, and either the electric wire or the conductive bar is placed on the upper side and the lower side of the spring body, respectively. It is possible to hold it.

本発明に係る回路遮断器の端子構造は、端子部には、上下に電線挿入孔と導電バー挿入孔とを配置し、端子部内部には電線挿入孔と導電バー挿入孔との間にばね体を設け、ばね体の上側と下側とそれぞれに電線又は導電バーのどちらかを保持可能としたため、導体の種類によって、速結端子とプラグイン式端子を使い分けることが可能となる。このとき、部品点数は元の速結端子を構成するものと変わりない。回路遮断器のどちら側も電源側端子、負荷側端子として使用可能となり、回路遮断器の設置方向に制約がなくなる。また、盤内で太い電線を導体として用いる場合、電線挿入孔に差し込むことができなくても、電線の先端に圧着端子を設けることでプラグイン式端子に差し込むことが可能となる。   In the terminal structure of the circuit breaker according to the present invention, an electric wire insertion hole and a conductive bar insertion hole are arranged at the top and bottom of the terminal portion, and a spring is interposed between the electric wire insertion hole and the conductive bar insertion hole inside the terminal portion. Since the body is provided and either the electric wire or the conductive bar can be held on each of the upper side and the lower side of the spring body, the quick connection terminal and the plug-in type terminal can be used properly depending on the type of the conductor. At this time, the number of parts is the same as that constituting the original quick connection terminal. Both sides of the circuit breaker can be used as the power supply side terminal and the load side terminal, and there are no restrictions on the installation direction of the circuit breaker. Further, when a thick electric wire is used as a conductor in the panel, even if it cannot be inserted into the electric wire insertion hole, it can be inserted into the plug-in terminal by providing a crimp terminal at the tip of the electric wire.

本発明に係る回路遮断器の端子構造の実施例を図１〜図５の添付図面に基いて説明する。   An embodiment of a terminal structure of a circuit breaker according to the present invention will be described with reference to the accompanying drawings of FIGS.

回路遮断器１はケース２の上面に操作ハンドル３を設け、この操作ハンドル３の動作により電路を開閉する。回路遮断器１のケース２の一方の面に電源側端子４、及び他方の面に負荷側端子５を設けている。電源側端子４には、商用電源と接続される導体が接続され、負荷側端子５には、負荷機器へと接続される導体が接続される。   The circuit breaker 1 is provided with an operation handle 3 on the upper surface of the case 2, and the electric circuit is opened and closed by the operation of the operation handle 3. A power supply side terminal 4 is provided on one surface of the case 2 of the circuit breaker 1, and a load side terminal 5 is provided on the other surface. A conductor connected to a commercial power source is connected to the power supply side terminal 4, and a conductor connected to a load device is connected to the load side terminal 5.

導体が接続される端子の方式としては、導体をねじ止めにより接続するねじ式端子、電線を差し込み、端子内部に設けられているばね体により鎖錠させ接続する速結端子、導電バーを差し込み、端子内部に設けられているばね体により挟持させ接続するプラグイン式端子等がある。   As a terminal system to which the conductor is connected, a screw type terminal for connecting the conductor by screwing, an electric wire, a fast connection terminal to be locked and connected by a spring body provided inside the terminal, a conductive bar, There are plug-in type terminals that are clamped and connected by a spring body provided inside the terminal.

本発明に係る回路遮断器１の端子構造では、電源側端子４と負荷側端子５共に、それぞれ速結端子６とプラグイン式端子７を併設した。回路遮断器１の端子部には、相毎の電線挿入孔８と、導電バー挿入孔９とを設ける。回路遮断器１の端子構造は、従来の速結端子６の構造と同様とし、端子内部には端子座１０が設けられている。端子座１０は、ばね体１１を保持し、ばね体１１とで挿入された導体を挟持する機能を持つ。ばね体１１は、導体へ付勢された固定部１１ａと、導体が抜け落ちることを防止するため端子部の導体導入部である、電線挿入孔８へ付勢された抜け止め部１１ｂと、固定部１１ａと抜け止め部１１ｂとを連接する座部１１ｃとで構成されている。   In the terminal structure of the circuit breaker 1 according to the present invention, both the power supply side terminal 4 and the load side terminal 5 are provided with the quick connection terminal 6 and the plug-in type terminal 7, respectively. The terminal portion of the circuit breaker 1 is provided with a wire insertion hole 8 and a conductive bar insertion hole 9 for each phase. The terminal structure of the circuit breaker 1 is the same as that of the conventional quick connection terminal 6, and a terminal seat 10 is provided inside the terminal. The terminal seat 10 has a function of holding the spring body 11 and sandwiching a conductor inserted between the spring body 11. The spring body 11 includes a fixed portion 11a urged toward the conductor, a retaining portion 11b urged toward the electric wire insertion hole 8, which is a conductor introduction portion of the terminal portion to prevent the conductor from falling off, and a fixed portion 11a and the seat part 11c which connects the retaining part 11b.

電線挿入孔８に電線１２を差し込むと、ばね体１１の固定部１１ａと端子座１０の上面とに電線１２をはさむことで固定され、また、ばね体１１の抜け止め部１１ｂによって一旦差し込んだ電線１２は引き抜こうとしても、抜けおちることない。また、導電バー挿入孔９に導電バーを差し込むと、ばね体１１の座部１１ｃと端子座１０の下面とに導電バーは挟持され、電気的に導通する。   When the electric wire 12 is inserted into the electric wire insertion hole 8, the electric wire 12 is fixed by being sandwiched between the fixing portion 11a of the spring body 11 and the upper surface of the terminal seat 10, and the electric wire once inserted by the retaining portion 11b of the spring body 11 Even if 12 tries to pull out, it will not fall out. Further, when the conductive bar is inserted into the conductive bar insertion hole 9, the conductive bar is sandwiched between the seat portion 11 c of the spring body 11 and the lower surface of the terminal seat 10 and is electrically connected.

導電バー挿入孔９に導電バー１３を差し込むと、ばね体１１は、導電バー１３に押されて上方へ移動し、端子座１０の上面にばね体１１が押し付けられることで、導電バー１３は端子座１０の下面とばね体１１とで挟持され、導電する。   When the conductive bar 13 is inserted into the conductive bar insertion hole 9, the spring body 11 is pushed upward by the conductive bar 13 and moves upward, and the spring body 11 is pressed against the upper surface of the terminal seat 10, so that the conductive bar 13 is connected to the terminal. It is sandwiched between the lower surface of the seat 10 and the spring body 11 to conduct electricity.

回路遮断器の内部の電気の流れについては、商用電源から導電バー１３等の導体を電源側端子４に接続し、電源側端子４から固定接点１４、可動接点１５を経て過電流引き外し装置１６を通って負荷機器へとつながる電線１２等の導体を接続する負荷側端子５へと流れる。端子部には過電流引き外し時間を調節するため工具を差し込み可能とする調節穴１７が設けられることもある。   Regarding the flow of electricity inside the circuit breaker, a conductor such as a conductive bar 13 is connected to the power supply side terminal 4 from a commercial power supply, and the overcurrent tripping device 16 is connected from the power supply side terminal 4 through the fixed contact 14 and the movable contact 15. It flows to the load side terminal 5 which connects conductors, such as the electric wire 12 connected to a load apparatus through. The terminal portion may be provided with an adjustment hole 17 through which a tool can be inserted in order to adjust the overcurrent trip time.

回路遮断器１の両端部に設けられた端子を、導体に合わせて電源側端子、負荷側端子のどちらにも使用することができるようになる。分電盤に回路遮断器を組み込んだとき、中央に導体を配設し、その両側に回路遮断器１を接続する際に、従来は、回路遮断器１に表示されている銘板の文字がさかさまになってしまうようなことがあったが、本発明では、どちら側の端子も接続可能であるため、表示を正位置にすることができる。   The terminals provided at both ends of the circuit breaker 1 can be used for both the power supply side terminal and the load side terminal according to the conductor. When the circuit breaker is installed in the distribution board, when the conductor is arranged in the center and the circuit breaker 1 is connected to both sides of the circuit breaker, the nameplate displayed on the circuit breaker 1 However, in the present invention, since the terminals on either side can be connected, the display can be in the normal position.

電線挿入孔８に挿入できない太い電線は、圧着端子を取り付けることで、導電バーとして導電バー挿入孔に差し込んで、回路遮断器と接続させることができる。   A thick electric wire that cannot be inserted into the electric wire insertion hole 8 can be connected to a circuit breaker by being inserted into the conductive bar insertion hole as a conductive bar by attaching a crimp terminal.

回路遮断器を示す側断面図と端子部の側面図である。It is a sectional side view which shows a circuit breaker, and a side view of a terminal part. 導体挿入前の回路遮断器の側断面図である。It is a sectional side view of the circuit breaker before conductor insertion. 導体を挿入した状態の回路遮断器の側断面図である。It is a sectional side view of the circuit breaker of the state which inserted the conductor. 図３におけるＡ部拡大図である。It is the A section enlarged view in FIG. 図３におけるＢ部拡大図である。It is the B section enlarged view in FIG.

符号の説明Explanation of symbols

１ 回路遮断器
２ ケース
３ 操作ハンドル
４ 電源側端子
５ 負荷側端子
６ 速結端子
７ プラグイン式端子
８ 電線挿入孔
９ 導電バー挿入孔
１０ 端子座
１１ ばね体
１１ａ 固定部
１１ｂ 抜け止め部
１１ｃ 座部
１２ 電線 DESCRIPTION OF SYMBOLS 1 Circuit breaker 2 Case 3 Operation handle 4 Power supply side terminal 5 Load side terminal 6 Fast connection terminal 7 Plug-in type terminal 8 Wire insertion hole 9 Conductive bar insertion hole 10 Terminal seat 11 Spring body 11a Fixing part 11b Retaining part 11c Seat Part 12 Electric wire

Claims (1)

ケースの上面に設けた電路を開閉する操作ハンドル、一方の面に設けた複数の電源側端子、及び他方の面に設けた複数の負荷側端子を備えた回路遮断器の端子構造であって、端子部には、上下に電線挿入孔と導電バー挿入孔とを配置し、端子部内部には前記電線挿入孔と導電バー挿入孔との間にばね体を設け、該ばね体の上側と下側とそれぞれに電線又は導電バーのどちらかを保持可能としたことを特徴とする回路遮断器の端子構造。   A circuit breaker terminal structure comprising an operation handle for opening and closing an electric circuit provided on the upper surface of the case, a plurality of power supply side terminals provided on one side, and a plurality of load side terminals provided on the other side, An electric wire insertion hole and a conductive bar insertion hole are arranged on the upper and lower sides of the terminal portion, and a spring body is provided between the electric wire insertion hole and the conductive bar insertion hole inside the terminal portion, and the upper and lower sides of the spring body. A circuit breaker terminal structure characterized in that either an electric wire or a conductive bar can be held on each side.
JP2008190864A 2008-07-24 2008-07-24 Circuit breaker terminal structure Active JP5182875B2 (en)

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JP2010027557A JP2010027557A (en) 2010-02-04
JP5182875B2 true JP5182875B2 (en) 2013-04-17

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001210218A (en) * 2000-01-28 2001-08-03 Kawamura Electric Inc Terminal structure of circuit breaker
JP4466984B2 (en) * 2000-09-05 2010-05-26 日東工業株式会社 Plug-in circuit breaker
JP2003308896A (en) * 2002-04-12 2003-10-31 Matsushita Electric Works Ltd Branch connector

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