JP2006134652A

JP2006134652A - Circuit breaker

Info

Publication number: JP2006134652A
Application number: JP2004320742A
Authority: JP
Inventors: Tomiyoshi Kiryu; 富義桐生
Original assignee: Hitachi Industrial Equipment Systems Co Ltd
Current assignee: Hitachi Industrial Equipment Systems Co Ltd
Priority date: 2004-11-04
Filing date: 2004-11-04
Publication date: 2006-05-25

Abstract

<P>PROBLEM TO BE SOLVED: To provide a circuit breaker capable of being easily connected with an electric circuit side in a short time. <P>SOLUTION: In this circuit breaker, breaker terminals for connecting with an existing terminals on the electric circuit side are attached to each of a load terminal on a stationary contact base side in a breaker case and a load terminal on a movable contact base side. The each of the breaker terminals is provided with a load terminal connection part connected with the load terminal and an existing terminal connection part connected with the existing terminal side on the electric circuit side at a superficially different position from the load terminal connection part. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、電気回路に接続され該電気回路を過電流から保護する回路遮断器に係り、特に、該回路遮断器を該電気回路側に接続するための技術に関する。 The present invention relates to a circuit breaker that is connected to an electric circuit and protects the electric circuit from an overcurrent, and more particularly to a technique for connecting the circuit breaker to the electric circuit side.

従来、例えば回路遮断器を交換するときなど、回路遮断器を電気回路側に再接続する場合は、該回路遮断器として、交換前の回路遮断器と同じ寸法仕様のものなど、該電気回路の既設端子に合う端子を備えたものを選んで接続するのが一般的である。図４に、電気回路側への従来の回路遮断器の接続構成の例を示す。図４で、回路遮断器１'は、遮断器ケース２１内に、固定接点台側に接続される負荷端子２２と可動接点台側に接続される負荷端子２３と備え、負荷端子２２には接続用端子２４がビス２６により接続され、負荷端子２３には接続用端子２５がビス２７により接続される。接続用端子２４は、電気回路側の配電盤に設けられた既設端子３０に配線ボルト２８により接続され、接続用端子２５は、同既設端子３１に配線ボルト２９により接続される。この場合、負荷端子２２と既設端子３０とは平面的に互いに略同じ位置にあり、同様に、負荷端子２３と既設端子３１とは平面的に互いに略同じ位置にある。このため、接続用端子２４、２５はそれぞれ、略直線状のものが用いられ、両端部がそれぞれ、負荷端子と既設端子に接続される。また、交換前の回路遮断器と同じ寸法仕様のものでないものを接続する場合には、電気回路側で配電盤の構造や配線接続を変更したり、配電盤や配線を取替えたりすることで対応するようにしている。本発明に関連した従来技術としての特許文献や非特許文献は、現時点では見当たらない。 Conventionally, when the circuit breaker is reconnected to the electric circuit side, for example, when the circuit breaker is replaced, the circuit breaker has the same dimensional specifications as the circuit breaker before replacement. It is common to select and connect terminals that have terminals that match existing terminals. In FIG. 4, the example of the connection structure of the conventional circuit breaker to the electric circuit side is shown. In FIG. 4, the circuit breaker 1 ′ includes a load terminal 22 connected to the fixed contact base side and a load terminal 23 connected to the movable contact base side in the circuit breaker case 21, and is connected to the load terminal 22. The connection terminal 24 is connected to the load terminal 23 by a screw 26, and the connection terminal 25 is connected to the load terminal 23 by a screw 27. The connection terminal 24 is connected to an existing terminal 30 provided on the switchboard on the electric circuit side by a wiring bolt 28, and the connection terminal 25 is connected to the existing terminal 31 by a wiring bolt 29. In this case, the load terminal 22 and the existing terminal 30 are substantially at the same position in a plane, and similarly, the load terminal 23 and the existing terminal 31 are approximately at the same position in a plane. For this reason, the connection terminals 24 and 25 are each substantially straight, and both ends are connected to the load terminal and the existing terminal, respectively. Also, when connecting a circuit breaker that does not have the same dimensions as the circuit breaker before replacement, change the switchboard structure and wiring connection on the electrical circuit side, or replace the switchboard and wiring. I have to. There is no patent document or non-patent document as a conventional technique related to the present invention.

上記従来技術においては、例えば回路遮断器を交換する場合、電気回路側の既設端子に合う端子（回路遮断器端子）のものを選んだり、配電盤の構造や配線接続を変更したり、配電盤や配線を取替えたりする必要があるため、回路遮断器の種別や性能が端子寸法の点から制限されたり、適合する仕様のものを入手するために時間がかかったり、電気回路側において配電盤工事や配線工事のために時間や費用がかかったりするなどの不都合があった。
本発明の課題点は、上記従来技術の状況に鑑み、回路遮断器において、交換などで電気回路側の既設端子に接続を行う場合にも、電気回路側の既設端子に合う回路遮断器を選んだり、電気回路側において配電盤の構造や配線接続を変更したり、配電盤や配線を取替えたりする必要がないようにすることである。
本発明の目的は、かかる課題点を解決し、電気回路側への接続を、寸法上の制限などを受けずに、短時間にかつ容易に行える回路遮断器を提供することにある。 In the above prior art, for example, when replacing a circuit breaker, select a terminal (circuit breaker terminal) that matches the existing terminal on the electric circuit side, change the structure and wiring connection of the switchboard, Since it is necessary to replace the circuit breaker, the type and performance of the circuit breaker is limited in terms of terminal dimensions, it takes time to obtain a compatible specification, distribution board work and wiring work on the electric circuit side Because of this, there were inconveniences such as taking time and money.
In view of the above-described prior art, the problem of the present invention is to select a circuit breaker that matches the existing terminal on the electric circuit side even when the circuit breaker is connected to the existing terminal on the electric circuit side by replacement or the like. In other words, there is no need to change the structure or wiring connection of the switchboard or change the switchboard or wiring on the electric circuit side.
An object of the present invention is to provide a circuit breaker that solves such problems and can be easily and quickly connected to an electric circuit without being limited in size.

上記課題点を解決するために、本発明では、回路遮断器として、遮断器ケース内の固定接点台側の負荷端子と可動接点台側の負荷端子とにそれぞれ、電気回路側の既設端子に接続するための遮断器端子を取付けた構成とし、該遮断器端子としてはそれぞれ、上記負荷端子に接続される負荷端子接続部と、該負荷端子接続部と平面的に異なった位置に設けられ電気回路側の既設端子側に接続される既設端子側接続部とを備えた構成とする。 In order to solve the above-mentioned problems, in the present invention, as a circuit breaker, the load terminal on the fixed contact base side and the load terminal on the movable contact base side in the circuit breaker case are connected to the existing terminals on the electric circuit side, respectively. The circuit breaker terminal is mounted, and the circuit breaker terminals are each connected to the load terminal connected to the load terminal, and an electric circuit provided at a position different from the load terminal connection part in a plane. It is set as the structure provided with the existing terminal side connection part connected to the existing terminal side of the side.

本発明によれば、回路遮断器の交換や新設などを行うとき、電気回路側の既設端子に合う回路遮断器を選んだり、電気回路側において配電盤の構造や配線接続を変更したり、配電盤や配線を取替えたりする必要がなくなり、回路遮断器の電気回路側への接続を、短時間にかつ容易に行うことが可能となる。 According to the present invention, when replacing or newly installing a circuit breaker, the circuit breaker that matches the existing terminal on the electric circuit side is selected, the structure or wiring connection of the switchboard is changed on the electric circuit side, There is no need to change the wiring, and the circuit breaker can be easily connected to the electric circuit side in a short time.

以下、本発明の実施例につき、図面を用いて説明する。 Embodiments of the present invention will be described below with reference to the drawings.

図１、図２は、本発明の第１の実施例としての回路遮断器の構成例を示す図である。図１は、電気回路側において配電盤内の既設端子に接続されるスタッドがバー型のスタッド場合（以下、バースタッドという）、図２は、丸型のスタッド（以下、丸スタッドという）の場合である。 1 and 2 are diagrams showing a configuration example of a circuit breaker as a first embodiment of the present invention. FIG. 1 shows a case where a stud connected to an existing terminal in the switchboard on the electric circuit side is a bar-type stud (hereinafter referred to as a bar stud), and FIG. is there.

図１において、１は回路遮断器、２１は遮断器ケース、２２は、遮断器ケース２１内にあって固定接点台側に接続される第１の負荷端子、２３は、同じく遮断器ケース２１内にあって可動接点台側に接続される第２の負荷端子、４１はＬ字状断面を有する第１の遮断器端子、４６はＬ字状断面を有する第２の遮断器端子、４１ａは、遮断器端子４１のＬ字状断面のＺ軸方向の部分、４１ｂは、第１の遮断器端子４１のＬ字状断面のＸ軸方向の部分、４６ａは、遮断器端子４６のＬ字状断面のＺ軸方向の部分、４６ｂは、第２の遮断器端子４６のＬ字状断面のＸ軸方向の部分、２６は、第１の遮断器端子４１のＬ字状断面のＺ軸方向部分４１ａに位置する負荷端子接続部を負荷端子２２に固定するビス、２７は、第２の遮断器端子４６のＬ字状断面のＺ軸方向部分４６ａに位置する負荷端子接続部を負荷端子２３に固定するビス、４２、４７はバースタッド、４３、４８は絶縁台、３０、３１は電気回路側の配電盤に設けられ、バースタッド４２、４７が接続される既設端子、４５は、第１の遮断器端子４１のＬ字状断面のＸ軸方向部分４１ｂに位置する既設端子側接続部をバースタッド４２に接続するためのビス、４９は、第２の遮断器端子４６のＬ字状断面のＸ軸方向部分４６ｂに位置する既設端子側接続部をバースタッド４７に接続するためのビス、２８は、バースタッド４２を既設端子３０に接続するための配線ボルト、２９は、バースタッド４７を既設端子３１に接続するための配線ボルト、５０、５１はスペーサ、９は配電盤の盤面部材、６１、６２はそれぞれ、スペーサ５０、５１を貫通して遮断器ケース２１を含む遮断器本体部を盤面部材９側に固定するビスである。 In FIG. 1, 1 is a circuit breaker, 21 is a breaker case, 22 is a first load terminal in the breaker case 21 and connected to the fixed contact base side, and 23 is also in the breaker case 21. The second load terminal connected to the movable contact base side, 41 is a first circuit breaker terminal having an L-shaped cross section, 46 is a second circuit breaker terminal having an L-shaped cross section, 41a is A portion in the Z-axis direction of the L-shaped cross section of the circuit breaker terminal 41, 41 b is a portion in the X-axis direction of the L-shaped cross section of the first circuit breaker terminal 41, and 46 a is an L-shaped cross section of the circuit breaker terminal 46. 46b is a portion in the X-axis direction of the L-shaped cross section of the second circuit breaker terminal 46, and 26 is a Z-axis direction portion 41a in the L-shaped cross section of the first circuit breaker terminal 41. A screw 27 for fixing the load terminal connection portion located at the load terminal 22 to the load terminal 22 is an L-shape of the second circuit breaker terminal 46 Screws for fixing the load terminal connection portion located in the Z-axis direction portion 46a of the surface to the load terminal 23, 42 and 47 are bar studs, 43 and 48 are insulating bases, and 30 and 31 are provided on the switchboard on the electric circuit side, The existing terminals 45 to which the bar studs 42 and 47 are connected are for connecting the existing terminal side connecting portion located in the X-axis direction portion 41 b of the L-shaped cross section of the first circuit breaker terminal 41 to the bar stud 42. A screw 49 is a screw for connecting the existing terminal side connection portion located in the X-axis direction portion 46b of the L-shaped cross section of the second circuit breaker terminal 46 to the bar stud 47, and 28 is a bar stud 42 already provided. Wiring bolts for connecting to the terminal 30, 29 are wiring bolts for connecting the bar stud 47 to the existing terminal 31, 50 and 51 are spacers, 9 is a panel member of the switchboard, and 61 and 62 are spacers, respectively. The breaker main body portion including a circuit breaker case 21 through the 50 and 51 is a screw for fixing the board member 9 side.

第１の遮断器端子４１、第２の遮断器端子４６のそれぞれにおいて、上記負荷端子接続部と上記既設端子側接続部は互いに平面的に異なった位置すなわちＺ軸に垂直な平面内で互いに異なった位置に設けられ、負荷端子接続部は負荷端子２２、２３それぞれの遮断器端子取付け部に適合する位置にあり、既設端子側接続部は既設端子３０、３１の位置やバースタッド４２、４７の遮断器端子取付け部に適合する位置にある。遮断器ケース２１を含む遮断器本体部、負荷端子２２に接続された第１の遮断器端子４１及び負荷端子２３に接続された第２の遮断器端子４６が回路遮断器を構成し、既設端子３０、３１、バースタッド４２、４７及び絶縁台４３、４８は、電気回路側の配電盤内に設けられる。 In each of the first circuit breaker terminal 41 and the second circuit breaker terminal 46, the load terminal connection portion and the existing terminal side connection portion are different from each other in a plane different from each other, that is, in a plane perpendicular to the Z axis. The load terminal connection portion is in a position suitable for the circuit breaker terminal mounting portion of each of the load terminals 22 and 23, and the existing terminal side connection portion is the position of the existing terminals 30 and 31 and the bar studs 42 and 47. It is in a position that fits the breaker terminal mounting part. The circuit breaker body including the circuit breaker case 21, the first circuit breaker terminal 41 connected to the load terminal 22, and the second circuit breaker terminal 46 connected to the load terminal 23 constitute a circuit breaker, and an existing terminal 30 and 31, the bar studs 42 and 47, and the insulating bases 43 and 48 are provided in the switchboard on the electric circuit side.

また、図２において、７０、７４は丸スタッド、７２、７６は絶縁管、７３、７７は電気回路側の配電盤に設けられ、丸スタッド７０、７４が接続される既設端子、８１は、第１の遮断器端子４１のＬ字状断面のＸ軸方向部分４１ｂに位置する既設端子側接続部を丸スタッド７０に結合するためのナット、８２は、第２の遮断器端子４６のＬ字状断面のＸ軸方向部分４６ｂに位置する既設端子側接続部を丸スタッド７４に結合するためのナット、７１は、丸スタッド７０を既設端子７３に接続するための配線ナット、７５は、丸スタッド７４を既設端子７７に接続するための配線ナットである。第１の遮断器端子４１、第２の遮断器端子４６のそれぞれにおいて、上記負荷端子接続部と上記既設端子側接続部は互いに平面的に異なった位置すなわちＺ軸に垂直な平面内で互いに異なった位置に設けられ、負荷端子接続部は負荷端子２２、２３それぞれの遮断器端子取付け部に適合する位置にあり、既設端子側接続部は、既設端子７３、７７それぞれが丸スタッド７０、７４と接続される位置や該丸スタッド７０、７４の遮断器端子取付け部に適合する位置にある。図２においても、遮断器ケース２１を含む遮断器本体部、負荷端子２２に接続された第１の遮断器端子４１及び負荷端子２３に接続された第２の遮断器端子４６が回路遮断器を構成し、既設端子７３、７７、丸スタッド７０、７４及び絶縁管７２、７６は、電気回路側の配電盤内に設けられる。 In FIG. 2, 70 and 74 are round studs, 72 and 76 are insulating tubes, 73 and 77 are provided on a distribution board on the electric circuit side, existing terminals to which the round studs 70 and 74 are connected, and 81 is a first A nut 82 for connecting the existing terminal side connecting portion located in the X-axis direction portion 41b of the L-shaped cross section of the circuit breaker terminal 41 to the round stud 70, 82 is an L-shaped cross section of the second circuit breaker terminal 46 A nut for connecting the existing terminal side connecting portion located in the X-axis direction portion 46 b of the round stud 74, a wiring nut 71 for connecting the round stud 70 to the existing terminal 73, and 75 a round stud 74. This is a wiring nut for connecting to the existing terminal 77. In each of the first circuit breaker terminal 41 and the second circuit breaker terminal 46, the load terminal connection portion and the existing terminal side connection portion are different from each other in a plane different from each other, that is, in a plane perpendicular to the Z axis. The load terminal connection portion is in a position suitable for the circuit breaker terminal mounting portion of each of the load terminals 22 and 23, and the existing terminal side connection portion is formed by connecting the existing terminals 73 and 77 with the round studs 70 and 74, respectively. It exists in the position which fits the circuit breaker terminal attachment part of this round stud 70,74, and the position to connect. 2, the circuit breaker body including the circuit breaker case 21, the first circuit breaker terminal 41 connected to the load terminal 22, and the second circuit breaker terminal 46 connected to the load terminal 23 are circuit breakers. The existing terminals 73 and 77, the round studs 70 and 74, and the insulating tubes 72 and 76 are provided in the switchboard on the electric circuit side.

上記図１、図２の構成において、例えば、回路遮断器を交換するとき、これまで使用していた第１の回路遮断器を、より小形の第２の回路遮断器に交換する場合は、該第２の回路遮断器は、第１の遮断器端子４１、第２の遮断器端子４６のＬ字状断面のＸ軸方向部分４１ｂ、４６ｂがそれぞれ、第１の回路遮断器の場合よりも長くされることになる。 In the configuration of FIGS. 1 and 2, for example, when replacing the circuit breaker, when replacing the first circuit breaker used so far with a smaller second circuit breaker, In the second circuit breaker, the X-axis direction portions 41b and 46b of the L-shaped cross section of the first circuit breaker terminal 41 and the second circuit breaker terminal 46 are longer than in the case of the first circuit breaker. Will be.

上記第１の実施例によれば、電気回路側に対して回路遮断器の交換や新設などの設置作業を行うとき、電気回路側の既設端子に合う回路遮断器を選んだり、電気回路側において配電盤の構造や配線接続を変更したり、配電盤や配線を取替えたりする必要がなくなるため、回路遮断器の設置作業を短時間かつ容易に行うことが可能となる。回路遮断器の選定自由度も拡大し、電気回路側に適したものを選ぶことができる。また、回路遮断器のコストも含め、設置費用の増大を抑えることができる。 According to the first embodiment, when performing an installation operation such as replacement or installation of a circuit breaker on the electric circuit side, a circuit breaker that matches an existing terminal on the electric circuit side is selected, or on the electric circuit side. Since it is not necessary to change the structure and wiring connection of the switchboard, or to replace the switchboard and wiring, the installation work of the circuit breaker can be performed in a short time and easily. The degree of freedom in selecting a circuit breaker has also been expanded, and it is possible to select one that is suitable for the electric circuit side. Moreover, the increase in installation expense including the cost of a circuit breaker can be suppressed.

図３は、本発明の第２の実施例としての回路遮断器の構成例を示す図である。本第３の実施例は、負荷端子接続部が設けられる部材と、既設端子側接続部が設けられる部材とを別個の部材とし、相互間を結合手段によって着脱できるようにした場合の例である。 FIG. 3 is a diagram showing a configuration example of a circuit breaker as a second embodiment of the present invention. The third embodiment is an example in which the member provided with the load terminal connection portion and the member provided with the existing terminal side connection portion are made separate members and can be attached and detached by a coupling means. .

図３において、４１ａ_１は、第１の遮断器端子４１内においてＬ字状断面のＺ軸方向部分を形成し負荷端子接続部が設けられる部材、４１ｂは、該第１の遮断器端子４１内においてＬ字状断面のＸ軸方向部分を形成し既設端子側接続部が設けられる部材部分、４１ａ_２は、同じく該第１の遮断器端子４１内においてＬ字状断面のＺ軸方向部分を形成し部材部分４１ｂと一体状に結合される部材部分、８５は、部材４１ａ_１の先端部と部材部分４１ａ_２の先端部とを突き合わせ状態で着脱可能に結合する結合手段としての接続子、８６は、該接続子８５の周囲に設けられ弾性復元力を該接続子８５に作用させる結合手段としてのばね材、４６ａ_１は、第２の遮断器端子４６内においてＬ字状断面のＺ軸方向部分を形成し負荷端子接続部が設けられる部材、４６ｂは、該第２の遮断器端子４６内においてＬ字状断面のＸ軸方向部分を形成し既設端子側接続部が設けられる部材部分、４６ａ_２は、同じく該第２の遮断器端子４６内においてＬ字状断面のＺ軸方向部分を形成し部材部分４６ｂと一体状に結合される部材部分、８７は、部材４６ａ_１の先端部と部材部分４６ａ_２の先端部を突き合わせ状態で着脱可能に結合する結合手段としての接続子、８８は、該接続子８７の周囲に設けられ弾性復元力を該接続子８７に作用させる結合手段としてのばね材である。他の部分の構成は、上記図１の場合と同様である。部材部分４１ａ_２は、第１の遮断器端子４１内において、部材部分４１ｂと一体状に結合されることで既設端子側接続部が設けられる部材を形成している。同様に、部材部分４６ａ_２は、第２の遮断器端子４６内において、部材部分４６ｂと一体状に結合されることで既設端子側接続部が設けられる部材を形成している。 In FIG. 3, 41 a ₁ is a member that forms a Z-axis direction portion of an L-shaped cross section in the first circuit breaker terminal 41 and is provided with a load terminal connection portion, and 41 b is in the first circuit breaker terminal 41. The member portion 41a ₂ that forms the X-axis direction portion of the L-shaped cross section and is provided with the existing terminal side connection portion, similarly forms the Z-axis direction portion of the L-shaped cross section in the first circuit breaker terminal 41 A member part 85 that is integrally coupled to the joint member part 41b, 85 is a connector as a coupling means for detachably coupling the tip part of the member 41a _{1 and} the tip part of the member part 41a _{2 in} a butted state, 86 is A spring material 46a ₁ provided around the connector 85 and acting as an elastic restoring force on the connector 85 is a portion of the L-shaped cross section in the Z-axis direction within the second circuit breaker terminal 46. Forming the load terminal connection. Are members, 46b are members portion existing terminal side connecting portion to form a X-axis direction portion of the L-shaped cross section within the second breaker terminal 46 is provided, 46a _2, like the second circuit breaker L-shaped Z-axis direction portion of the formed member portion 46b and the member portions that are coupled together shaped cross-section in the terminal 46, 87, in a state abutting the distal end of the tip and the member portions 46a ₂ of the members 46a ₁ A connector 88 as a coupling means that is detachably coupled is a spring material provided as a coupling means that is provided around the connector 87 and causes an elastic restoring force to act on the connector 87. The structure of the other parts is the same as in the case of FIG. The member portion 41a ₂ forms a member in which the existing terminal side connection portion is provided by being integrally coupled with the member portion 41b in the first circuit breaker terminal 41. Similarly, member portions 46a _2, within the second circuit breaker terminal 46, the existing terminal side connecting part forms a member provided by being coupled to the member portion 46b integrally form.

上記図３の構成において、例えば、回路遮断器を交換や新設等を行う場合は、まず、第１の遮断器端子４１のうち、部材部分４１ａ_２と部材部分４１ｂとが一体状に結合されたＬ字状断面の部材を、既設端子３０に接続されたバースタッド４２に対してビス４５により接続するとともに、第２の遮断器端子４６のうち、部材部分４６ａ_２と部材部分４６ｂとが一体状に結合されたＬ字状断面の部材を、既設端子３１に接続されたバースタッド４７に対してビス４９により接続し、部材部分４１ａ_２の先端部と部材部分４６ａ_２の先端部とのそれぞれに、結合手段としての接続子８５、ばね材８６、接続子８７、ばね材８８をセットする。次に、回路遮断器本体側に接続された第１の遮断器端子４１内の部材４１ａ_１と第２の遮断器端子４６内の部材４６ａ_１とをそれぞれ、その先端部を上記接続子８５、８７中に挿入し、それぞれを部材部分４１ａ_２、部材部分４６ａ_２の先端部と突き合わせて電気的に結合する。この状態で、予めセットされているスペーサ５０、５１をそれぞれ、ビス６１、６２により締付けて回路遮断器を電気回路側に取付け、交換作業を終了する。接続子８５、８７、ばね材８６、８８は、部材４１ａ_１側と部材４６ａ_１側とにセットしておき、該接続子８５、８７に、部材部分４１ａ_２の先端部と部材部分４６ａ_２の先端部をそれぞれ挿入させるようにしてもよい。 In the configuration of FIG. 3, for example, in the case of performing such replacement or new circuit breaker, first, of the first circuit breaker terminal 41, and the member portion 41a ₂ and the member portion 41b is integrally coupled to form the members of L-shaped cross section, as well as connected by screws 45 against the bar studs 42 connected to the existing terminal 30, of the second circuit breaker terminal 46, member portion 46a ₂ and the member portion 46b and is integrally shaped A member having an L-shaped cross section coupled to the bar stud 47 connected to the existing terminal 31 is connected by a screw 49 to each of a distal end portion of the member portion 41a _{2 and} a distal end portion of the member portion 46a _2. The connector 85, the spring member 86, the connector 87, and the spring member 88 are set as coupling means. Next, the circuit breaker first breaker members 41a ₁ in the terminal 41 and the member 46a ₁ in the second circuit breaker terminal 46 respectively, the connector 85 and the distal end portion connected to the main body, 87, and abutment with the tip portions of the member portion 41a ₂ and the member portion 46a ₂ for electrical connection. In this state, the spacers 50 and 51 set in advance are tightened with screws 61 and 62, respectively, to attach the circuit breaker to the electric circuit side, and the replacement operation is completed. The connectors 85 and 87 and the spring members 86 and 88 are set on the member 41a ₁ side and the member 46a ₁ side, and the tips of the member portion 41a ₂ and the member portion 46a ₂ are connected to the connectors 85 and 87, respectively. You may make it insert a front-end | tip part, respectively.

上記第２の実施例によれば、上記第１の実施例の場合と同様、回路遮断器の設置作業を短時間かつ容易に行うことができる。特に、接続子８５、８７、及びばね材８６、８８から成る結合手段を用いた構成のため、ビスやナットの着脱を行うことなく、ワンタッチ的な動作により回路遮断器を電気回路側に対して容易に着脱することができる。また、回路遮断器の選定自由度も拡大し、電気回路側に適したものを選ぶことができる。回路遮断器のコストも含め、設置費用の増大も抑えることができる。 According to the second embodiment, the circuit breaker can be installed in a short time and easily as in the case of the first embodiment. In particular, because of the configuration using the coupling means composed of the connectors 85 and 87 and the spring members 86 and 88, the circuit breaker is connected to the electric circuit side by one-touch operation without attaching or detaching screws or nuts. It can be easily attached and detached. In addition, the degree of freedom in selecting a circuit breaker is expanded, and a circuit breaker suitable for the electric circuit side can be selected. The increase in installation cost including the cost of the circuit breaker can also be suppressed.

本発明の第１の実施例としての回路遮断器の構成例図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a structural example figure of the circuit breaker as a 1st Example of this invention. 本発明の第１の実施例としての回路遮断器の他の構成例図である。It is another structural example figure of the circuit breaker as a 1st Example of this invention. 本発明の第２の実施例としての回路遮断器の構成例図である。It is a structural example figure of the circuit breaker as a 2nd Example of this invention. 従来の回路遮断器の接続構成例を示す図である。It is a figure which shows the connection structural example of the conventional circuit breaker.

Explanation of symbols

１…回路遮断器、
２１…遮断器ケース、
２２…第１の負荷端子、
２３…第２の負荷端子、
３０、３１、７３、７７…既設端子、
４１…第１の遮断器端子、
４６…第２の遮断器端子、
４２、４７…バースタッド、
４３、４８…絶縁台、
２８、２９…配線ボルト、
５０、５１…スペーサ、
９…配電盤の盤面部材、
２６、２７、４５、４９、６１、６２…ビス、
７０、７４…丸スタッド、
７２、７６…絶縁管、
８１、８２…ナット、
７１、７５…配線ナット、
８５、８７…接続子、
８６、８８…ばね材。 1 ... Circuit breaker,
21 ... Circuit breaker case,
22 ... 1st load terminal,
23 ... second load terminal,
30, 31, 73, 77 ... existing terminals,
41 ... 1st circuit breaker terminal,
46 ... second breaker terminal,
42, 47 ... Bar stud,
43, 48 ... insulation base,
28, 29 ... wiring bolts,
50, 51 ... spacer,
9: Panel members of the switchboard,
26, 27, 45, 49, 61, 62 ... screws,
70, 74 ... round studs,
72, 76 ... insulating tubes,
81, 82 ... nuts,
71, 75 ... wiring nuts,
85, 87 ... connector,
86, 88 ... Spring material.

Claims

A circuit breaker connected to an electrical circuit and protecting the electrical circuit from overcurrent,
A circuit breaker body having a first load terminal connected to the fixed contact block and a second load terminal connected to the movable contact block in the circuit breaker case;
The load terminal connection portion connected to the first load terminal, and the existing terminal side connection connected to the first existing terminal side on the electric circuit side provided at a position different from the load terminal connection portion in plan view A first circuit breaker terminal having a portion;
The load terminal connection portion connected to the second load terminal, and the existing terminal side connection connected to the second existing terminal side on the electric circuit side provided at a position different from the load terminal connection portion in plan view A second circuit breaker terminal having a portion;
A circuit breaker characterized by comprising a structure.

2. The first and second circuit breaker terminals each have an L-shaped cross section, and the load terminal connection portion and the existing terminal connection portion are respectively configured on the distal end side of both orthogonal portions. Circuit breaker described in.

Each of the first and second circuit breaker terminals is configured such that the member provided with the load terminal connection portion and the member provided with the existing terminal side connection portion are separate members, and can be attached and detached by a coupling means. The circuit breaker according to claim 1.