JP6796810B2

JP6796810B2 - Switch and distribution board

Info

Publication number: JP6796810B2
Application number: JP2019212941A
Authority: JP
Inventors: 吉川　啓介; 啓介吉川; 洋一鶴田; 靖也宮田; 元昭佐藤; 中村　国法; 国法中村
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2014-12-26
Filing date: 2019-11-26
Publication date: 2020-12-09
Anticipated expiration: 2035-11-30
Also published as: JP6635371B2; JP6751918B2; JP6601766B2; JP2019216122A; JP6827221B2; JP6631909B2; JP2020024962A; JP6704181B2; JP2016127007A; JP2020107620A; JP2020024961A; JP2016127792A; JP2016127791A

Description

本発明は、開閉器及び分電盤に関する。 The present invention relates to switches and distribution boards.

従来、ケースの負荷側と電源側とに接地端子がそれぞれ設けられ、負荷側の接地端子と電源側の接地端子との間が電路を介して電気的に接続された分岐ブレーカが提案されている（例えば特許文献１参照）。電源側の接地端子が接地線を介して接地された状態で、負荷側の接地端子に接地分岐線が接続されると、接地分岐線が分岐ブレーカを介して接地されるように構成されている。 Conventionally, a branch breaker has been proposed in which ground terminals are provided on the load side and the power supply side of the case, respectively, and the ground terminal on the load side and the ground terminal on the power supply side are electrically connected via an electric circuit. (See, for example, Patent Document 1). When the grounding terminal on the power supply side is grounded via the grounding wire and the grounding branch wire is connected to the grounding terminal on the load side, the grounding branch wire is configured to be grounded via the branch breaker. ..

特開２００１−１６７１４号公報Japanese Unexamined Patent Publication No. 2001-16714

特許文献１に開示された分岐ブレーカでは、負荷側の接地端子と電源側の接地端子とがそれぞれネジ式の端子で構成されているため、負荷側及び電源側の接地端子に電線を接続する作業に手間がかかっていた。 In the branch breaker disclosed in Patent Document 1, since the ground terminal on the load side and the ground terminal on the power supply side are each composed of screw-type terminals, the work of connecting the electric wire to the ground terminals on the load side and the power supply side. It took time and effort.

本発明は上記課題に鑑みてなされ、接地線を接続する作業を容易にした開閉器及び分電盤を提供することを目的とする。 The present invention has been made in view of the above problems, and an object of the present invention is to provide a switch and a distribution board that facilitate the work of connecting a ground wire.

本発明の開閉器は、電源に電気的に接続される第１端子と、負荷に電気的に接続される第２端子と、前記第１端子と前記第２端子との間に電気的に接続された接点部と、前記負荷に電気的に接続された接地線が接続される第３端子と、分電盤に設けられた接地端子に電気的に接続される第４端子と、前記第３端子と前記第４端子との間を電気的に接続する接続回路と、前記第２端子、前記第３端子、前記第４端子、及び前記接続回路を保持するケースとを備え、前記第４端子は、前記ケースを取り付けるために前記分電盤に設けられた金属製の取付部材と導通し、前記取付部材を介して前記接地端子と電気的に接続されるように構成されたことを特徴とする。
本発明の開閉器は、電源に電気的に接続される第１端子と、負荷に電気的に接続される第２端子と、前記第１端子と前記第２端子との間に電気的に接続された接点部と、前記負荷に電気的に接続された接地線が接続される第３端子と、分電盤に設けられた接地端子に電気的に接続される第４端子と、前記第３端子と前記第４端子との間を電気的に接続する接続回路と、前記第２端子、前記第３端子、前記第４端子、及び前記接続回路を保持するケースとを備え、前記ケースには貫通孔が設けられており、前記第４端子は、前記貫通孔を通して前記ケースの表面から突出した状態で、前記分電盤に設けられた接触部材と接触し、前記接触部材を介して前記接地端子と電気的に接続されるように構成されたことを特徴とする。 The switch of the present invention is electrically connected between a first terminal electrically connected to a power source, a second terminal electrically connected to a load, and the first terminal and the second terminal. The contact portion, the third terminal to which the ground wire electrically connected to the load is connected, the fourth terminal electrically connected to the ground terminal provided on the distribution board, and the third terminal. The fourth terminal is provided with a connection circuit for electrically connecting the terminal and the fourth terminal, and a case for holding the second terminal, the third terminal, the fourth terminal, and the connection circuit. Is characterized in that it is configured to conduct with a metal mounting member provided on the distribution board for mounting the case and to be electrically connected to the ground terminal via the mounting member. To do.
The switch of the present invention is electrically connected between a first terminal electrically connected to a power source, a second terminal electrically connected to a load, and the first terminal and the second terminal. The contact portion, the third terminal to which the ground wire electrically connected to the load is connected, the fourth terminal electrically connected to the ground terminal provided on the distribution board, and the third terminal. The case includes a connection circuit that electrically connects the terminal and the fourth terminal, and a case that holds the second terminal, the third terminal, the fourth terminal, and the connection circuit. A through hole is provided, and the fourth terminal comes into contact with a contact member provided on the distribution board in a state of protruding from the surface of the case through the through hole, and is grounded via the contact member. It is characterized in that it is configured to be electrically connected to a terminal.

本発明の分電盤は、上記の開閉器と、前記開閉器を収納するキャビネットとを備えたことを特徴とする。 The distribution board of the present invention is characterized by including the above-mentioned switch and a cabinet for accommodating the switch.

本発明によれば、接地線を接続する作業を容易にした開閉器及び分電盤を提供することができる。 According to the present invention, it is possible to provide a switch and a distribution board that facilitate the work of connecting the ground wire.

実施形態の分電盤の正面図である。It is a front view of the distribution board of an embodiment. 実施形態の分岐開閉器の内部回路図である。It is an internal circuit diagram of the branch switch of an embodiment. 実施形態の分岐開閉器が取付部材に取り付けられた状態を幅方向から見た側面図である。It is a side view which looked at the state which the branch switch of embodiment was attached to the attachment member from the width direction. 実施形態の分岐開閉器を長さ方向から見た側面図である。It is a side view which looked at the branch switch of an embodiment from the length direction. 図５Ａは、押しボタン方式により第４端子と接触部材とを接触させる前の状態を示す図であり、図５Ｂは押しボタン方式により第４端子と接触部材とを接触させた状態を示す図である。FIG. 5A is a diagram showing a state before the fourth terminal and the contact member are brought into contact by the push button method, and FIG. 5B is a diagram showing a state in which the fourth terminal and the contact member are brought into contact by the push button method. is there. 図６Ａは、レバー方式により第４端子と接触部材とを接触させる前の状態を示す図であり、図６Ｂはレバー方式により第４端子と接触部材とを接触させた状態を示す図である。FIG. 6A is a diagram showing a state before the fourth terminal and the contact member are brought into contact by the lever method, and FIG. 6B is a diagram showing a state where the fourth terminal and the contact member are brought into contact by the lever method. １個の速結端子を有する分岐開閉器の外観を示す図である。It is a figure which shows the appearance of the branch switch which has one quick connection terminal. 分電盤が、１つ以上の配線用遮断器と１つ以上の漏電遮断器とを混在させて収納している場合の図である。It is a figure in the case where the distribution board contains one or more molded case circuit breakers and one or more earth leakage breakers in a mixed manner.

本実施形態は、開閉器及び分電盤に関し、より詳細には、接地分岐線が接続される分岐開閉器及び分電盤に関する。 The present embodiment relates to a switch and a distribution board, and more particularly to a branch switch and a distribution board to which a grounded branch line is connected.

以下、本実施形態に係る開閉器及び分電盤について図面を参照して説明する。なお、本実施形態では、開閉器の一例として分岐開閉器について説明する。本実施形態の分電盤は、例えば工場やオフィスなどの建物に設置されて使用される。ただし、以下に説明する構成は本発明の一例に過ぎない。本発明は、以下の実施形態に限定されず、本発明に係る技術的思想を逸脱しない範囲であれば、設計等に応じて種々の変更が可能である。 Hereinafter, the switch and the distribution board according to the present embodiment will be described with reference to the drawings. In this embodiment, a branch switch will be described as an example of the switch. The distribution board of the present embodiment is installed and used in a building such as a factory or an office. However, the configuration described below is only an example of the present invention. The present invention is not limited to the following embodiments, and various modifications can be made according to the design and the like as long as the technical idea of the present invention is not deviated.

本実施形態の分電盤１は、図１に示すように、前面が開口した箱型のキャビネット１０を備えている。以下では、分電盤１が壁に取り付けられた状態での上下左右（図１における上下左右）を上下左右とし、壁に直交する方向（図１の紙面と直交する方向）を前後方向として説明するが、分電盤１を取り付ける向きは上記の向きに限定されない。 As shown in FIG. 1, the distribution board 1 of the present embodiment includes a box-shaped cabinet 10 having an open front surface. In the following, the vertical and horizontal directions (up and down, left and right in FIG. 1) when the distribution board 1 is attached to the wall will be referred to as vertical and horizontal, and the direction orthogonal to the wall (direction orthogonal to the paper surface in FIG. However, the direction in which the distribution board 1 is attached is not limited to the above direction.

キャビネット１０の内部には、内器として主幹開閉器２と複数の分岐開閉器３とが収納されている。複数の分岐開閉器３は、キャビネット１０の内部に配置された矩形板状の取付部材４に取り付けられている。キャビネット１０の側壁には、商用電源１００（電源）に接続される電源線２０１、電力を分配する分岐線２０２、接地分岐線２０３、接地線２０６などの配線を通すための貫通孔が設けられている。キャビネット１０の内部には、接地線２０６を接続するための接地端子１１が設けられている。キャビネット１０の前面の開口部には扉が開口部を塞ぐようにキャビネット１０に取り付けられている。 Inside the cabinet 10, a main switch 2 and a plurality of branch switches 3 are housed as internal units. The plurality of branch switches 3 are attached to a rectangular plate-shaped attachment member 4 arranged inside the cabinet 10. The side wall of the cabinet 10 is provided with a through hole for passing wiring such as a power supply line 201 connected to a commercial power supply 100 (power supply), a branch line 202 for distributing power, a ground branch line 203, and a ground line 206. There is. A ground terminal 11 for connecting the ground wire 206 is provided inside the cabinet 10. A door is attached to the front opening of the cabinet 10 so as to close the opening.

主幹開閉器２の一次側の端子２１には、商用電源１００からの単相三線式の電源線２０１が接続される。主幹開閉器２の二次側の端子２２には、電圧極（Ｌ１相、Ｌ２相）と中性極との３本の導電バー５が電気的に接続されている。３本の導電バー５（母線）の各々は、金属板にプレス加工を施すことによって帯板状に形成されており、主幹開閉器２を介して電源線２０１に電気的に接続されている。 A single-phase three-wire power line 201 from the commercial power source 100 is connected to the terminal 21 on the primary side of the main switch 2. Three conductive bars 5 having a voltage pole (L1 phase, L2 phase) and a neutral pole are electrically connected to the terminal 22 on the secondary side of the main switch 2. Each of the three conductive bars 5 (buses) is formed in a strip shape by pressing a metal plate, and is electrically connected to the power supply line 201 via the main switch 2.

取付部材４は、平面形状が矩形状の金属板であり、キャビネット１０の内部（例えば、底面）に例えばネジで固定されている。キャビネット１０の左右方向における中央部であって、取付部材４が設置されていない箇所には３本の導電バー５が取り付けられている。３本の導電バー５は、長手方向が上下方向と平行し、かつ前後方向において間隔をあけて並ぶように配置されている。取付部材４には、導電バー５に対して左右両側に、複数の分岐開閉器３が上下方向に並べて配置されるように、取り付けられている。なお、導電バー５の前面は、導電バー５の前方に配置される合成樹脂製のカバー６によって覆われている。 The mounting member 4 is a metal plate having a rectangular planar shape, and is fixed to the inside (for example, the bottom surface) of the cabinet 10 with screws, for example. Three conductive bars 5 are attached to the central portion of the cabinet 10 in the left-right direction in which the attachment member 4 is not installed. The three conductive bars 5 are arranged so that the longitudinal direction is parallel to the vertical direction and the three conductive bars 5 are arranged at intervals in the front-rear direction. A plurality of branch switches 3 are attached to the attachment member 4 so as to be arranged side by side in the vertical direction on both the left and right sides of the conductive bar 5. The front surface of the conductive bar 5 is covered with a synthetic resin cover 6 arranged in front of the conductive bar 5.

取付部材４には、接地線２０５の一端を接続するためのネジ端子４２が設けられている。接地線２０５の他端は接地端子１１に電気的に接続されており、接地端子１１は接地線２０６を介して接地されている。そのため、取付部材４は接地線２０５，２０６を介して接地されている。 The mounting member 4 is provided with a screw terminal 42 for connecting one end of the ground wire 205. The other end of the ground wire 205 is electrically connected to the ground terminal 11, and the ground terminal 11 is grounded via the ground wire 206. Therefore, the mounting member 4 is grounded via the ground wires 205 and 206.

また、取付部材４には、例えば取付部材４の一部を切り起こすことによって、側面視の形状がＬ型に形成された係止片４１が設けられている（図３参照）。取付部材４に分岐開閉器３が取り付けられると、係止片４１が分岐開閉器３の第４端子ｔ４に電気的に接続されることによって、第４端子ｔ４が取付部材４に電気的に接続される。 Further, the mounting member 4 is provided with a locking piece 41 having an L-shaped side view, for example, by cutting up a part of the mounting member 4 (see FIG. 3). When the branch switch 3 is attached to the mounting member 4, the locking piece 41 is electrically connected to the fourth terminal t4 of the branch switch 3, so that the fourth terminal t4 is electrically connected to the mounting member 4. Will be done.

次に、分岐開閉器３について図２〜図４を参照して説明する。 Next, the branch switch 3 will be described with reference to FIGS. 2 to 4.

まず、分岐開閉器３の電気的な構成を図２に基づいて説明する。分岐開閉器３は、２個の第１端子ｔ１と、２個の第２端子ｔ２と、第３端子ｔ３と、第４端子ｔ４と、２個の接点部３１と、短絡回路３２（接続回路）とを備えている。 First, the electrical configuration of the branch switch 3 will be described with reference to FIG. The branch switch 3 includes two first terminals t1, two second terminals t2, a third terminal t3, a fourth terminal t4, two contact portions 31, and a short circuit 32 (connection circuit). ) And.

２個の第１端子ｔ１の各々には導電バー５が接続される。分岐開閉器３が１００Ｖ用の場合、２個の第１端子ｔ１のうちの一方には電圧極（Ｌ１相又はＬ２相）の導電バー５が接続され、２個の第１端子ｔ１のうちの他方には中性極の導電バー５が接続される。分岐開閉器３が２００Ｖ用の場合、２個の第１端子ｔ１のうちの一方にはＬ１相の導電バー５が接続され、２個の第１端子ｔ１のうちの他方にはＬ２相の導電バー５が接続される。 A conductive bar 5 is connected to each of the two first terminals t1. When the branch switch 3 is for 100V, the conductive bar 5 of the voltage pole (L1 phase or L2 phase) is connected to one of the two first terminals t1, and of the two first terminals t1. On the other hand, the conductive bar 5 of the neutral pole is connected. When the branch switch 3 is for 200 V, the L1 phase conductive bar 5 is connected to one of the two first terminals t1, and the L2 phase conductive bar 5 is connected to the other of the two first terminals t1. The bar 5 is connected.

２個の第２端子ｔ２の各々には、負荷（例えば接地極付きのコンセントなど）が接続される分岐線２０２が接続される。 A branch line 202 to which a load (for example, an outlet with a grounding electrode) is connected is connected to each of the two second terminals t2.

２個の接点部３１の各々は、対応する第１端子ｔ１と第２端子ｔ２との間に電気的に接続されている。２個の接点部３１は、ハンドル３３（図３参照）の操作に応じて、オン状態及びオフ状態の何れかに切り替えられる。また分岐開閉器３は、分岐線２０２に流れる負荷電流が、あらかじめ設定されたしきい値を超えると、接点部３１を強制的に開極させる過電流保護機能を備えてもよい。 Each of the two contact portions 31 is electrically connected between the corresponding first terminal t1 and the second terminal t2. The two contact portions 31 are switched to either an on state or an off state according to the operation of the handle 33 (see FIG. 3). Further, the branch switch 3 may have an overcurrent protection function for forcibly opening the contact portion 31 when the load current flowing through the branch line 202 exceeds a preset threshold value.

第３端子ｔ３には、負荷の接地極に電気的に接続された接地分岐線２０３が接続される。第３端子ｔ３は、接地分岐線２０３が接続される接地分岐線端子となる。ここにおいて、分岐開閉器３には負荷として例えば接地極付きのコンセントが接続されており、コンセントの接地極に電気的に接続された接地分岐線２０３が第３端子ｔ３に接続される。 A ground branch line 203 electrically connected to the ground electrode of the load is connected to the third terminal t3. The third terminal t3 is a ground branch line terminal to which the ground branch line 203 is connected. Here, for example, an outlet with a grounding electrode is connected to the branch switch 3 as a load, and a grounding branch line 203 electrically connected to the grounding electrode of the outlet is connected to the third terminal t3.

第４端子ｔ４は、金属製の取付部材４に電気的に接続され、取付部材４を介して接地端子１１と電気的に接続される。 The fourth terminal t4 is electrically connected to the metal mounting member 4, and is electrically connected to the ground terminal 11 via the mounting member 4.

短絡回路３２は、第３端子ｔ３と第４端子ｔ４との間を電気的に短絡（接続）する。 The short-circuit circuit 32 electrically short-circuits (connects) between the third terminal t3 and the fourth terminal t4.

分岐開閉器３は、第１端子ｔ１、第２端子ｔ２、第３端子ｔ３、第４端子ｔ４、接点部３１、及び短絡回路３２を収納（保持）するケース３０をさらに備えている。 The branch switch 3 further includes a case 30 for accommodating (holding) a first terminal t1, a second terminal t2, a third terminal t3, a fourth terminal t4, a contact portion 31, and a short circuit 32.

ケース３０は合成樹脂の成型品であり、直方体状に形成されている。ケース３０は、図１の左右方向、前後方向、上下方向の順番で寸法が小さくなっている。なお、ケース３０において、図１の左右方向を長手方向と、前後方向を高さ方向と、上下方向を短手（幅）方向と、それぞれ称する。 The case 30 is a molded product of synthetic resin and is formed in a rectangular parallelepiped shape. The case 30 has smaller dimensions in the order of the left-right direction, the front-back direction, and the up-down direction in FIG. In the case 30, the left-right direction of FIG. 1 is referred to as a longitudinal direction, the front-back direction is referred to as a height direction, and the vertical direction is referred to as a short (width) direction.

次に、分岐開閉器３の機械的な構成を図３及び図４に基づいて説明する。図３は、分岐開閉器３が取付部材４に取り付けられた状態を短手（幅）方向から見た側面図である。図４は、分岐開閉器３を長手方向から見た側面図である。 Next, the mechanical configuration of the branch switch 3 will be described with reference to FIGS. 3 and 4. FIG. 3 is a side view of the state in which the branch switch 3 is attached to the attachment member 4 as viewed from the side (width) direction. FIG. 4 is a side view of the branch switch 3 as viewed from the longitudinal direction.

ケース３０の長手方向の一端部（図３の左）に、３本の導電バー５のうち対応する導電バー５がそれぞれ挿入される３個のスリット３５が設けられている。３個のスリット３５のうちの２個（図１における前方の２個）には、スリット３５に挿入される導電バー５を厚み方向の両端から挟むように接触する刃受け部材３６が配置されている。刃受け部材３６は弾性及び導電性を有する金属材料で形成されており、この刃受け部材３６で第１端子ｔ１が構成されている。スリット３５に挿入された導電バー５が刃受け部材３６に接触されることによって、第１端子ｔ１に導電バー５が電気的に接続される。 At one end of the case 30 in the longitudinal direction (left in FIG. 3), three slits 35 into which the corresponding conductive bars 5 of the three conductive bars 5 are inserted are provided. Two of the three slits 35 (the front two in FIG. 1) are provided with blade receiving members 36 that come into contact with each other so as to sandwich the conductive bars 5 inserted into the slits 35 from both ends in the thickness direction. There is. The blade receiving member 36 is made of a metal material having elasticity and conductivity, and the blade receiving member 36 constitutes the first terminal t1. When the conductive bar 5 inserted into the slit 35 comes into contact with the blade receiving member 36, the conductive bar 5 is electrically connected to the first terminal t1.

ケース３０の長手方向の他端部（図３の右）に、第２端子ｔ２となる速結端子７０と、第３端子ｔ３となる速結端子８０とが、高さ方向に２段に並ぶように設けられている（図３参照）。本実施形態では、速結端子７０が図３の上方、速結端子８０が図３の下方に位置するようにケース３０に収納されている。本実施形態の分岐開閉器３は、速結端子７０及び速結端子８０を２個ずつ備えている。２個の速結端子８０のうち一方の速結端子８０に接地分岐線２０３が接続される。２個の速結端子７０はケース３０の幅方向に並ぶように配置され、２個の速結端子８０もケース３０の幅方向に並ぶように配置されている。ケース３０の長手方向の他端部から見た側面には、２個の速結端子７０の各々に対応する位置に２個の貫通孔３７が設けられ、２個の速結端子８０の各々に対応する位置に２個の貫通孔３８が設けられている（図３、図４参照）。 At the other end of the case 30 in the longitudinal direction (right in FIG. 3), the fast-connecting terminal 70 serving as the second terminal t2 and the fast-connecting terminal 80 serving as the third terminal t3 are arranged in two stages in the height direction. (See FIG. 3). In the present embodiment, the quick-connect terminal 70 is housed in the case 30 so as to be located above FIG. 3 and the quick-connect terminal 80 is located below FIG. The branch switch 3 of the present embodiment includes two quick-connect terminals 70 and two quick-connect terminals 80. The ground branch line 203 is connected to one of the two quick-connect terminals 80. The two quick-connect terminals 70 are arranged so as to be arranged in the width direction of the case 30, and the two quick-connect terminals 80 are also arranged so as to be arranged in the width direction of the case 30. Two through holes 37 are provided at positions corresponding to each of the two quick-connect terminals 70 on the side surface of the case 30 as viewed from the other end in the longitudinal direction, and each of the two quick-connect terminals 80 is provided with two through holes 37. Two through holes 38 are provided at corresponding positions (see FIGS. 3 and 4).

ケース３０の内部には、短絡回路３２を構成する導電板３２０が収納されている。導電板３２０は、帯板状の金属板の両端を略直角に折り曲げられた形状に形成されている。導電板３２０は、ケース３０の底壁に中央部分を沿わせるようにして、ケース３０の内部に収納されている。導電板３２０の長手方向における他端部（図３の右）には、第３端子ｔ３に接続される端子片３２１が設けられている。導電板３２０の長手方向における一端部（図３の左）には、取付部材４の係止片４１に電気的に接続される端子片３２２が設けられている。端子片３２２は、ケース３０の下面に設けられた開口３４に臨む位置に配置されている。ケース３０が取付部材４に取り付けられると、取付部材４の係止片４１が開口３４を通してケース３０内に挿入され、係止片４１が端子片３２２と接触することによって、導電板３２０と取付部材４とが電気的に接続される。ここにおいて、端子片３２２で第４端子ｔ４が構成される。この場合、導電板３２０は、ケース３０の後面側に設けられている（収納されている）こととなる。 The conductive plate 320 constituting the short-circuit circuit 32 is housed inside the case 30. The conductive plate 320 is formed in a shape in which both ends of a strip-shaped metal plate are bent at substantially right angles. The conductive plate 320 is housed inside the case 30 so that the central portion thereof is aligned with the bottom wall of the case 30. A terminal piece 321 connected to the third terminal t3 is provided at the other end (right in FIG. 3) of the conductive plate 320 in the longitudinal direction. A terminal piece 322 electrically connected to the locking piece 41 of the mounting member 4 is provided at one end (left in FIG. 3) of the conductive plate 320 in the longitudinal direction. The terminal piece 322 is arranged at a position facing the opening 34 provided on the lower surface of the case 30. When the case 30 is attached to the mounting member 4, the locking piece 41 of the mounting member 4 is inserted into the case 30 through the opening 34, and the locking piece 41 comes into contact with the terminal piece 322, whereby the conductive plate 320 and the mounting member 4 is electrically connected. Here, the terminal piece 322 constitutes the fourth terminal t4. In this case, the conductive plate 320 is provided (stored) on the rear surface side of the case 30.

速結端子７０は、端子板７１と、鎖錠バネ７２と、解除レバー７３とを備える。 The quick-connect terminal 70 includes a terminal plate 71, a lock spring 72, and a release lever 73.

端子板７１は、接点部３１に電気的に接続されている。端子板７１は、貫通孔３７からケース３０の内部に挿入される電線（分岐線２０２）と対向する位置に配置されている。 The terminal plate 71 is electrically connected to the contact portion 31. The terminal plate 71 is arranged at a position facing the electric wire (branch wire 202) inserted into the case 30 from the through hole 37.

鎖錠バネ７２は、帯板状の板バネの長手方向における両端部が曲げられた形状に形成されている。鎖錠バネ７２は、中央部分の長手方向における一端部に設けられた鎖錠片７４と、中央部分の長手方向における他端部に設けられた押圧片７５とを備えている。鎖錠片７４は、鎖錠バネ７２の中央部分の一端部がＪ字形に形成されている。押圧片７５は、鎖錠バネ７２の中央部分の他端部がＳ字形に形成されている。鎖錠バネ７２は、鎖錠片７４及び押圧片７５を端子板７１に対向させるようにしてケース３０の内部に収納されている。 The lock spring 72 is formed in a shape in which both ends of the strip-shaped leaf spring in the longitudinal direction are bent. The lock spring 72 includes a lock piece 74 provided at one end in the longitudinal direction of the central portion and a pressing piece 75 provided at the other end in the longitudinal direction of the central portion. In the lock piece 74, one end of the central portion of the lock spring 72 is formed in a J shape. The other end of the central portion of the lock spring 72 of the pressing piece 75 is formed in an S shape. The lock spring 72 is housed inside the case 30 so that the lock piece 74 and the pressing piece 75 face each other with the terminal plate 71.

鎖錠片７４と貫通孔３７との間の距離が押圧片７５と貫通孔３７との間の距離より小さい。貫通孔３７からケース３０の内部に電線が挿入されると、この電線に鎖錠片７４の先端が食い込み、速結端子７０から電線を取り外しできない状態となる。貫通孔３７からケース３０の内部に挿入された電線が端子板７１と押圧片７５との間に挿入されると、押圧片７５の弾性力によって電線が端子板７１に押し付けられ、電線と端子板７１とが電気的に接続される。 The distance between the lock piece 74 and the through hole 37 is smaller than the distance between the pressing piece 75 and the through hole 37. When the electric wire is inserted into the case 30 from the through hole 37, the tip of the lock piece 74 bites into the electric wire, and the electric wire cannot be removed from the quick connection terminal 70. When the electric wire inserted into the case 30 from the through hole 37 is inserted between the terminal plate 71 and the pressing piece 75, the electric wire is pressed against the terminal plate 71 by the elastic force of the pressing piece 75, and the electric wire and the terminal plate are pressed. 71 is electrically connected.

解除レバー７３は、ケース３０に支持された軸７６を中心として回転自在にケース３０に取り付けられている。解除レバー７３には、ケース３０の開口３９から露出する部位に操作突起７７が設けられている。解除レバー７３には、解除レバー７３が回転させられることによって、端子板７１から離れる向きに鎖錠片７４を押す突起７８が設けられている。鎖錠バネ７２と端子板７１との間に電線が挿入されている状態で、操作突起７７を操作して解除レバー７３を図３中の時計回りに回転させると、突起７８によって鎖錠片７４が端子板７１から離れる向きにたわめられる。鎖錠片７４が端子板７１から離れる向きにたわめられると、鎖錠片７４の先端が電線から離れるので、電線の抜け止め状態が解除され、電線の取り外しが可能になる。操作突起７７を操作する力がなくなると、鎖錠片７４の弾性復帰力によって突起７８が押され、解除レバー７３が操作前の位置まで移動した状態となる。 The release lever 73 is rotatably attached to the case 30 about a shaft 76 supported by the case 30. The release lever 73 is provided with an operation protrusion 77 at a portion exposed from the opening 39 of the case 30. The release lever 73 is provided with a protrusion 78 that pushes the lock piece 74 away from the terminal plate 71 by rotating the release lever 73. With the electric wire inserted between the lock spring 72 and the terminal plate 71, when the operation protrusion 77 is operated to rotate the release lever 73 clockwise in FIG. 3, the lock piece 74 is formed by the protrusion 78. Is flexed away from the terminal plate 71. When the lock piece 74 is bent away from the terminal plate 71, the tip of the lock piece 74 is separated from the electric wire, so that the electric wire is released from the disconnection state and the electric wire can be removed. When the force for operating the operation protrusion 77 is lost, the protrusion 78 is pushed by the elastic return force of the lock piece 74, and the release lever 73 is moved to the position before the operation.

速結端子８０は、端子板８１と、鎖錠バネ８２と、解除部材８３とを備える。 The quick-connect terminal 80 includes a terminal plate 81, a lock spring 82, and a release member 83.

端子板８１は、貫通孔３８からケース３０の内部に挿入される電線（接地分岐線２０３）と対向する位置に配置されている。端子板８１には、溶接、ロウ付け、かしめ固定などの適宜の方法で、導電板３２０の端子片３２１が固定されており、端子板８１と導電板３２０とが電気的に接続されている。 The terminal plate 81 is arranged at a position facing the electric wire (ground branch line 203) inserted into the case 30 from the through hole 38. The terminal piece 321 of the conductive plate 320 is fixed to the terminal plate 81 by an appropriate method such as welding, brazing, or caulking, and the terminal plate 81 and the conductive plate 320 are electrically connected to each other.

鎖錠バネ８２は、帯板状の板バネの長手方向における両端部が曲げられた形状に形成されている。鎖錠バネ８２は、中央部分の長手方向における一端部に設けられた鎖錠片８４と、中央部分の長手方向における他端部に設けられた押圧片８５とを備えている。鎖錠片８４は、鎖錠バネ８２の中央部分の一端部がＪ字形に形成されている。押圧片８５は、鎖錠バネ８２の中央部分の他端部がＳ字形に形成されている。鎖錠バネ８２は、鎖錠片８４及び押圧片８５を端子板８１に対向させるようにしてケース３０の内部に収納されている。 The lock spring 82 is formed in a shape in which both ends of the strip-shaped leaf spring in the longitudinal direction are bent. The lock spring 82 includes a lock piece 84 provided at one end in the longitudinal direction of the central portion, and a pressing piece 85 provided at the other end in the longitudinal direction of the central portion. In the lock piece 84, one end of the central portion of the lock spring 82 is formed in a J shape. The other end of the central portion of the locking spring 82 of the pressing piece 85 is formed in an S shape. The lock spring 82 is housed inside the case 30 so that the lock piece 84 and the pressing piece 85 face each other with the terminal plate 81.

鎖錠片８４と貫通孔３８との間の距離が押圧片８５と貫通孔３８との間の距離より小さい。貫通孔３８からケース３０の内部に電線（接地分岐線２０３）が挿入されると、この電線に鎖錠片８４の先端が食い込み、速結端子８０から電線を取り外しできない状態となる。貫通孔３８からケース３０の内部に挿入された電線が端子板８１と押圧片８５との間に挿入されると、押圧片８５の弾性力によって電線が端子板８１に押し付けられ、電線と端子板８１とが電気的に接続される。このように、電線を差し込むだけで電気的接続と機械的接続とが完了するような端子を速結型の端子という。 The distance between the lock piece 84 and the through hole 38 is smaller than the distance between the pressing piece 85 and the through hole 38. When an electric wire (ground branch wire 203) is inserted into the case 30 from the through hole 38, the tip of the lock piece 84 bites into the electric wire, and the electric wire cannot be removed from the quick connection terminal 80. When the electric wire inserted into the case 30 from the through hole 38 is inserted between the terminal plate 81 and the pressing piece 85, the electric wire is pressed against the terminal plate 81 by the elastic force of the pressing piece 85, and the electric wire and the terminal plate The 81 is electrically connected. A terminal in which an electrical connection and a mechanical connection are completed simply by inserting an electric wire in this way is called a quick connection type terminal.

解除部材８３は、ケース３０の長手方向の他端部（図３における右）に設けられた保持孔に、進退自在に配置されている。解除部材８３の操作部８６はケース３０の表面から外側に露出している。解除部材８３には、操作部８６が押されることによって、端子板８１から離れる向きに鎖錠片８４を押す突起８７が設けられている。鎖錠バネ８２と端子板８１との間に電線が挿入されている状態で、操作部８６を押すと、突起８７によって鎖錠片８４が端子板８１から離れる向きにたわめられる。鎖錠片８４が端子板８１から離れる向きにたわめられると、鎖錠片８４の先端が電線から離れるので、電線の抜け止め状態が解除され、電線の取り外しが可能になる。操作部８６を押す力がなくなると、鎖錠片８４の弾性復帰力によって突起８７が押され、ケース３０の表面から操作部８６が突出した状態となる。 The release member 83 is arranged in a holding hole provided at the other end (right in FIG. 3) of the case 30 in the longitudinal direction so as to be movable back and forth. The operation portion 86 of the release member 83 is exposed to the outside from the surface of the case 30. The release member 83 is provided with a protrusion 87 that pushes the lock piece 84 in a direction away from the terminal plate 81 when the operation unit 86 is pushed. When the operation unit 86 is pushed while the electric wire is inserted between the lock spring 82 and the terminal plate 81, the lock piece 84 is bent in the direction away from the terminal plate 81 by the protrusion 87. When the lock piece 84 is bent in a direction away from the terminal plate 81, the tip of the lock piece 84 is separated from the electric wire, so that the electric wire is released from the retaining state and the electric wire can be removed. When the force for pushing the operation unit 86 is lost, the protrusion 87 is pushed by the elastic recovery force of the lock piece 84, and the operation unit 86 protrudes from the surface of the case 30.

本実施形態の分岐開閉器３は、スリット３５に導電バー５を差し込むようにして取付部材４に取り付けられる。このようにして分岐開閉器３が取付部材４に取り付けられると、係止片４１が分岐開閉器３の端子片３２２に引っ掛かった状態となり、この状態でケース３０の右方向の端部を取付部材４に固定すると、分岐開閉器３が取付部材４に固定される。また、分岐開閉器３が取付部材４に取り付けられた状態では、係止片４１が端子片３２２（第４端子ｔ４）に接触することで、取付部材４と導電板３２０とが電気的に接続される。取付部材４は、接地線２０５を介してキャビネット１０の接地端子１１に電気的に接続されているので、分岐開閉器３の第３端子ｔ３（速結端子８０）が取付部材４を介して接地端子１１に電気的に接続されることになる。そして、分岐開閉器３の速結端子８０に、分岐回路からの接地分岐線２０３が接続されると、この接地分岐線２０３が取付部材４を介して接地端子１１に電気的に接続されて、接地分岐線２０３が接地されることになる。本実施形態の分岐開閉器３では、接地分岐線２０３が接続される第３端子ｔ３を速結端子８０で構成しているので、接地分岐線２０３を接続する作業を簡単にできる。ここにおいて、本実施形態の分電盤１では、取付部材４が、複数本の接地分岐線２０３をまとめて接地端子１１に電気的に接続する集中接地端子の機能を果たしており、取付部材４とは別に集中接地端子を備える必要が無いという利点がある。 The branch switch 3 of the present embodiment is attached to the attachment member 4 by inserting the conductive bar 5 into the slit 35. When the branch switch 3 is attached to the attachment member 4 in this way, the locking piece 41 is in a state of being caught by the terminal piece 322 of the branch switch 3, and in this state, the right end of the case 30 is attached to the attachment member. When fixed to 4, the branch switch 3 is fixed to the mounting member 4. Further, in the state where the branch switch 3 is attached to the attachment member 4, the locking piece 41 comes into contact with the terminal piece 322 (fourth terminal t4), so that the attachment member 4 and the conductive plate 320 are electrically connected. Will be done. Since the mounting member 4 is electrically connected to the grounding terminal 11 of the cabinet 10 via the grounding wire 205, the third terminal t3 (quick connection terminal 80) of the branch switch 3 is grounded via the mounting member 4. It will be electrically connected to the terminal 11. Then, when the grounding branch line 203 from the branch circuit is connected to the quick connection terminal 80 of the branch switch 3, the grounding branch line 203 is electrically connected to the grounding terminal 11 via the mounting member 4. The ground branch line 203 will be grounded. In the branch switch 3 of the present embodiment, since the third terminal t3 to which the ground branch line 203 is connected is composed of the quick connection terminal 80, the work of connecting the ground branch line 203 can be simplified. Here, in the distribution board 1 of the present embodiment, the mounting member 4 functions as a centralized grounding terminal for electrically connecting a plurality of grounding branch lines 203 to the grounding terminal 11 together with the mounting member 4. Has the advantage that it is not necessary to separately provide a centralized ground terminal.

本実施形態では、速結端子７０が備える解除レバー７３を図３中の時計回りに回転させることで、電線（分岐線２０２）の抜け止めの解除をさせ、速結端子８０が備える解除部材８３を押すことで、電線（接地分岐線２０３）の抜け止めを解除させる構成とした。しかしながら、この構成に限定されない。速結端子７０において解除部材８３を用いた抜け止めの解除を行ってもよいし、速結端子８０において解除レバー７３を用いた抜け止めの解除を行ってもよい。または、双方とも解除レバー７３を用いた抜け止めの解除を行ってもよいし、解除部材８３を用いて抜け止めの解除を行ってもよい。 In the present embodiment, the release lever 73 included in the quick-connect terminal 70 is rotated clockwise in FIG. 3 to release the disconnection prevention of the electric wire (branch wire 202), and the release member 83 included in the quick-connect terminal 80 is released. By pressing, the wire (ground branch wire 203) is released from being pulled out. However, it is not limited to this configuration. The quick-connect terminal 70 may be released from the retaining member 83 using the release member 83, or the quick-connect terminal 80 may be released from the retaining lever 73 using the release lever 73. Alternatively, both may use the release lever 73 to release the retainer, or the release member 83 may be used to release the retainer.

本実施形態において、第４端子ｔ４は、ケース３０を取り付けるために分電盤１に設けられた金属製の取付部材４と導通する構成としたが、この構成に限定されない。 In the present embodiment, the fourth terminal t4 is configured to be conductive with the metal mounting member 4 provided on the distribution board 1 for mounting the case 30, but is not limited to this configuration.

第４端子ｔ４は、単に分電盤１に設けられた金属製の部材（接触部材）と接触することで導通する構成としてもよい。なお、この接触部材は、ケース３０を取り付けるための構成（機能）を有していない点で取付部材４と異なり、他の点では取付部材４と同様の構成（機能）を有している。 The fourth terminal t4 may be configured to be conductive by simply contacting a metal member (contact member) provided on the distribution board 1. The contact member is different from the mounting member 4 in that it does not have a configuration (function) for mounting the case 30, and has the same configuration (function) as the mounting member 4 in other respects.

例えば、第４端子ｔ４は、図５Ａ，５Ｂに示すような構造で接触部材と接触してもよい。例えば、押しボタン方式により第４端子ｔ４と接触部材４ａとを接触させてもよい。図５Ａは、分岐開閉器３が接触部材４ａに取り付けられた状態を示す図である。図５Ａに示す状態では、金属製の板（接触板）９１が有する凸部９１１（第４端子ｔ４）は、ケース３０の底面に設けられた貫通孔３０ａに挿入されていない。つまり、凸部９１１は、ケース３０の表面から突出していない。 For example, the fourth terminal t4 may come into contact with the contact member in a structure as shown in FIGS. 5A and 5B. For example, the fourth terminal t4 and the contact member 4a may be brought into contact with each other by a push button method. FIG. 5A is a diagram showing a state in which the branch switch 3 is attached to the contact member 4a. In the state shown in FIG. 5A, the convex portion 911 (fourth terminal t4) of the metal plate (contact plate) 91 is not inserted into the through hole 30a provided on the bottom surface of the case 30. That is, the convex portion 911 does not protrude from the surface of the case 30.

図５Ａに示す状態でボタン９０が押されることで、接触板９１が下方向に移動し、凸部９１１が貫通孔３０ａに挿入され、凸部９１１が貫通孔３０ａを通してケース３０の表面から突出した状態で接触部材４ａと接触する（図５Ｂ参照）。なお、図５Ａ，５Ｂに示す速結端子７０及び速結端子８０の双方とも、解除レバーを用いて電線の抜け止めの解除を行っている。ここで、図５Ａ，５Ｂに示す接触部材４ａは、可とう性を有する編組線３２ａ（例えば編組銅線）を介して速結端子８０（第３端子ｔ３）、具体的には端子板８１と電気的に接続されている。 When the button 90 is pressed in the state shown in FIG. 5A, the contact plate 91 moves downward, the convex portion 911 is inserted into the through hole 30a, and the convex portion 911 protrudes from the surface of the case 30 through the through hole 30a. In this state, it comes into contact with the contact member 4a (see FIG. 5B). In addition, both the quick-connect terminal 70 and the quick-connect terminal 80 shown in FIGS. 5A and 5B use the release lever to release the wire disconnection prevention. Here, the contact member 4a shown in FIGS. 5A and 5B is connected to the quick-connect terminal 80 (third terminal t3), specifically, the terminal plate 81 via a flexible braided wire 32a (for example, a braided copper wire). It is electrically connected.

また、第４端子ｔ４の別の例として、レバー方式により第４端子ｔ４と接触部材４ａとを接触させてもよい（図６Ａ，６Ｂ参照）。図６Ａは、分岐開閉器３が接触部材４ａに取り付けられた状態を示す図である。図６Ａに示す状態では、接触板９１が有する凸部９１１（第４端子ｔ４）は、ケース３０の底面に設けられた貫通孔３０ａに挿入されていない。つまり凸部９１１は、ケース３０の表面から突出していない。 Further, as another example of the fourth terminal t4, the fourth terminal t4 and the contact member 4a may be brought into contact with each other by a lever method (see FIGS. 6A and 6B). FIG. 6A is a diagram showing a state in which the branch switch 3 is attached to the contact member 4a. In the state shown in FIG. 6A, the convex portion 911 (fourth terminal t4) of the contact plate 91 is not inserted into the through hole 30a provided on the bottom surface of the case 30. That is, the convex portion 911 does not protrude from the surface of the case 30.

図６Ａに示す状態でレバー９５が軸９７を中心として図６Ａ中の時計回りに回転すると、リンク機構９６により押圧部材９８が図６Ａ中の下向きに移動する。これにより、凸部９１１（第４端子ｔ４）を有する金属製の板（接触板）９１が下方向に移動し、凸部９１１が貫通孔３０ａに挿入され、凸部９１１が貫通孔３０ａを通してケース３０の表面から突出した状態で接触部材４ａと接触する（図６Ｂ参照）。なお、図６Ａ，６Ｂに示す速結端子７０及び速結端子８０の双方とも、解除レバーを用いて電線の抜け止めの解除を行っている。ここで、図６Ａ，６Ｂに示す接触部材４ａは、可とう性を有する編組線３２ａ（例えば編組銅線）を介して速結端子８０（第３端子ｔ３）、具体的には端子板８１と電気的に接続されている。 When the lever 95 rotates clockwise in FIG. 6A about the shaft 97 in the state shown in FIG. 6A, the pressing member 98 moves downward in FIG. 6A by the link mechanism 96. As a result, the metal plate (contact plate) 91 having the convex portion 911 (fourth terminal t4) moves downward, the convex portion 911 is inserted into the through hole 30a, and the convex portion 911 passes through the through hole 30a in the case. It comes into contact with the contact member 4a in a state of protruding from the surface of No. 30 (see FIG. 6B). In addition, both the quick-connect terminal 70 and the quick-connect terminal 80 shown in FIGS. 6A and 6B use the release lever to release the wire disconnection prevention. Here, the contact member 4a shown in FIGS. 6A and 6B is connected to the quick-connect terminal 80 (third terminal t3), specifically, the terminal plate 81 via a flexible braided wire 32a (for example, a braided copper wire). It is electrically connected.

なお、図５Ａ，５Ｂ及び図６Ａ，６Ｂにおいて、接触部材４ａと第３端子ｔ３とを編組線３２ａを介して電気的に接続されているが、これに限定されない。接触部材４ａと第３端子ｔ３とが金属製の板で電気的に接続されていてもよい。 In FIGS. 5A and 5B and 6A and 6B, the contact member 4a and the third terminal t3 are electrically connected via the braided wire 32a, but the present invention is not limited to this. The contact member 4a and the third terminal t3 may be electrically connected by a metal plate.

本実施形態において、分岐開閉器３は、２つの速結端子８０を有する構成としたが、この構成に限定されない。第３端子ｔ３を構成する速結端子８０は、少なくとも１個あればよい。なお、図７は、第３端子ｔ３を構成する速結端子８０を１個だけ有する分岐開閉器３の外観を示している。 In the present embodiment, the branch switch 3 has a configuration having two quick-connect terminals 80, but is not limited to this configuration. At least one quick-connect terminal 80 constituting the third terminal t3 may be used. Note that FIG. 7 shows the appearance of the branch switch 3 having only one quick-connect terminal 80 constituting the third terminal t3.

第３端子ｔ３を構成する速結端子８０を１個だけ有する分岐開閉器３では、図７に示すように、１つの貫通孔３８が設けられている。この貫通孔３８に電線が挿入され、第３端子ｔ３と電気的に接続される。ここで、図７に示す分岐開閉器３における速結端子８０は、図３に示す速結端子７０と同様の構成である。つまり、図７に示す分岐開閉器３が有する速結端子は、解除レバー８３ａを回転することで、貫通孔３８に挿入された電線の抜けを防止したり、解除したりする。 As shown in FIG. 7, the branch switch 3 having only one quick-connect terminal 80 constituting the third terminal t3 is provided with one through hole 38. An electric wire is inserted into the through hole 38 and is electrically connected to the third terminal t3. Here, the quick-connect terminal 80 in the branch switch 3 shown in FIG. 7 has the same configuration as the quick-connect terminal 70 shown in FIG. That is, the quick-connect terminal of the branch switch 3 shown in FIG. 7 prevents or releases the electric wire inserted into the through hole 38 by rotating the release lever 83a.

本実施形態において、開閉器の一例として分岐開閉器を用いたが、これに限定されない。 In the present embodiment, a branch switch is used as an example of the switch, but the present invention is not limited to this.

本実施形態の開閉器は、電流が流れていないときに、スイッチの開閉を行う機能（断路機能）を少なくとも有していればよい。例えば、開閉器は、遮断器、遮断機能を有していないスイッチ又は断路器である。 The switch of the present embodiment may have at least a function of opening and closing the switch (disconnecting function) when no current is flowing. For example, a switch is a circuit breaker, a switch or a disconnector that does not have a circuit breaker function.

例えば、本実施形態の開閉器は、漏電遮断器（ＥＬＢ：ＥａｒｔｈＬｅａｋａｇｅｃｉｒｃｕｉｔＢｒｅａｋｅｒ）及び配線用遮断器（ＭＣＢ：ＭｏｌｄｅｄＣａｓｅＣｉｒｃｕｉｔＢｒｅａｋｅｒ）に適用してもよい。これにより、本実施形態の分電盤１は、図８に示すように、ＥＬＢとＭＣＢとを混在させてキャビネット１０に収納することができる。ＥＬＢ及びＭＣＢは、上述した分岐開閉器３と同様に、第１端子ｔ１と、第２端子ｔ２と、接点部３１と、第３端子ｔ３と、第４端子ｔ４と、短絡回路３２とを備える。第３端子ｔ３は接地分岐線２０３に接続され、第４端子ｔ４は取付部材４に電気的に接続される（図８参照）。 For example, the switch of the present embodiment may be applied to an earth leakage breaker (ELB: Earth Leakage circuit breaker) and a molded case circuit breaker (MCB: Molded Case Circuit Breaker). As a result, as shown in FIG. 8, the distribution board 1 of the present embodiment can be housed in the cabinet 10 in which ELB and MCB are mixed. The ELB and MCB include a first terminal t1, a second terminal t2, a contact portion 31, a third terminal t3, a fourth terminal t4, and a short-circuit circuit 32, similarly to the branch switch 3 described above. .. The third terminal t3 is connected to the ground branch line 203, and the fourth terminal t4 is electrically connected to the mounting member 4 (see FIG. 8).

図８に示すように、分電盤１は、１つ以上のＭＣＢと１つ以上のＥＬＢとを混在させてキャビネット１０に収納している。これにより、接地分岐線２０３を接続する作業を簡単にしながら、統合接地を可能とすることができる。 As shown in FIG. 8, the distribution board 1 contains one or more MCBs and one or more ELBs in a mixed manner in the cabinet 10. As a result, integrated grounding can be enabled while simplifying the work of connecting the grounding branch line 203.

本実施形態では、第２端子ｔ２として速結端子７０を、第３端子ｔ３として速結端子８０を用いたが、これに限定されない。第２端子ｔ２としてねじ端子を用いてもよいし、第３端子ｔ３についても同様にねじ端子を用いてもよい。 In the present embodiment, the quick-connect terminal 70 is used as the second terminal t2, and the quick-connect terminal 80 is used as the third terminal t3, but the present invention is not limited thereto. A screw terminal may be used as the second terminal t2, and a screw terminal may be used for the third terminal t3 as well.

本実施形態において、３個のスリット３５のうち図１における前方２個のスリット３５に、刃受け部材３６が配置される構成としたが、この構成に限定されない。刃受け部材３６は、３個のスリット３５のうち２個のスリット３５に設けられていればよい。 In the present embodiment, the blade receiving member 36 is arranged in the two front slits 35 in FIG. 1 out of the three slits 35, but the configuration is not limited to this. The blade receiving member 36 may be provided in two of the three slits 35.

以上のように、本実施形態の開閉器（分岐開閉器３）は、第１端子ｔ１と、第２端子ｔ２と、接点部３１と、第３端子ｔ３と、第４端子ｔ４と、接続回路（短絡回路３２）とを備える。第１端子ｔ１には電源（商用電源１００）が電気的に接続された第１電線（導電バー５）が接続される。第２端子ｔ２には負荷に電気的に接続された第２電線（分岐線２０２）が接続される。接点部３１は、第１端子ｔ１と第２端子ｔ２との間に電気的に接続される。第３端子ｔ３は、負荷に電気的に接続された接地線（接地分岐線２０３）が接続される。第４端子ｔ４は、分電盤１に設けられた接地端子１１に電気的に接続される。接続回路（短絡回路３２）は、第３端子ｔ３と第４端子ｔ４との間を接続（短絡）する。 As described above, the switch (branch switch 3) of the present embodiment includes the first terminal t1, the second terminal t2, the contact portion 31, the third terminal t3, the fourth terminal t4, and the connection circuit. (Short circuit 32). A first electric wire (conductive bar 5) to which a power source (commercial power source 100) is electrically connected is connected to the first terminal t1. A second electric wire (branch line 202) electrically connected to the load is connected to the second terminal t2. The contact portion 31 is electrically connected between the first terminal t1 and the second terminal t2. A ground wire (ground branch wire 203) electrically connected to the load is connected to the third terminal t3. The fourth terminal t4 is electrically connected to the ground terminal 11 provided on the distribution board 1. The connection circuit (short circuit 32) connects (short-circuits) between the third terminal t3 and the fourth terminal t4.

本実施形態の分岐開閉器３によれば、第３端子ｔ３に接地分岐線２０３が接続されることによって、分電盤１の集中接地端子（接地端子１１）を介して接地分岐線２０３が接地される。複数の分岐開閉器３を分電盤１に設置する場合に、接地端子１１に接地するように作業を行えばよく、複数の分岐開閉器３を個別に接地端子を用意し、個々に接地する必要がなくなる。そのため、本実施形態の開閉器（分岐開閉器３）において、接地線を接続する作業を容易に行うことができる。 According to the branch switch 3 of the present embodiment, by connecting the ground branch line 203 to the third terminal t3, the ground branch line 203 is grounded via the centralized ground terminal (ground terminal 11) of the distribution board 1. Will be done. When a plurality of branch switches 3 are installed on the distribution board 1, the work may be performed so as to ground the ground terminals 11, and the plurality of branch switches 3 are individually prepared with ground terminals and grounded individually. No need. Therefore, in the switch (branch switch 3) of the present embodiment, the work of connecting the ground wire can be easily performed.

また、本実施形態の開閉器（分岐開閉器３）において、第３端子ｔ３を３速結型の端子で構成した場合には、接地分岐線２０３を第３端子ｔ３に接続する作業を容易に行うことができる。 Further, in the switch (branch switch 3) of the present embodiment, when the third terminal t3 is composed of a three-speed connection type terminal, the work of connecting the ground branch line 203 to the third terminal t3 can be easily performed. It can be carried out.

また、接地分岐線２０３が接続される接地端子を分岐開閉器３の外部に備える場合に比べて、分岐開閉器３が取り付けられる分電盤１の大きさを小型にできる。 Further, the size of the distribution board 1 to which the branch switch 3 is attached can be reduced as compared with the case where the ground terminal to which the ground branch line 203 is connected is provided outside the branch switch 3.

また、分岐線２０２と接地分岐線２０３とは分岐開閉器３に接続されるので、分岐線２０２及び接地分岐線２０３が多芯のＶＶ線（ビニル絶縁ビニルシースケーブル）で構成される場合、各々の電線の末端加工が同じになり、末端加工に要する加工時間を短縮できる。 Further, since the branch line 202 and the ground branch line 203 are connected to the branch switch 3, when the branch line 202 and the ground branch line 203 are composed of a multi-core VV line (vinyl insulated vinyl sheath cable), each of them. The end processing of the electric wire is the same, and the processing time required for end processing can be shortened.

本実施形態の開閉器（分岐開閉器３）において、第３端子ｔ３は、速結端子であってもよい。これにより、接地分岐線２０３を第３端子ｔ３に接続する作業を容易に行うことができる。 In the switch (branch switch 3) of the present embodiment, the third terminal t3 may be a quick connection terminal. As a result, the work of connecting the ground branch line 203 to the third terminal t3 can be easily performed.

本実施形態の開閉器（分岐開閉器３）において、第１端子ｔ１、第２端子ｔ２、第３端子ｔ３、第４端子ｔ４、接点部３１、及び接続回路（短絡回路３２）を収納（保持）するケース３０をさらに備えてもよい。第４端子ｔ４は、ケース３０の背面側に設けられてもよい。これにより、従来の開閉器のようにケースの一端部に第４端子ｔ４と他の端子（例えば第２端子）とを配置する場合と比較して、他の端子の配置を考慮する必要がないので、従来より容易に設計することができる。 In the switch (branch switch 3) of the present embodiment, the first terminal t1, the second terminal t2, the third terminal t3, the fourth terminal t4, the contact portion 31, and the connection circuit (short circuit 32) are housed (held). ) May be further provided. The fourth terminal t4 may be provided on the back side of the case 30. As a result, it is not necessary to consider the arrangement of the other terminals as compared with the case where the fourth terminal t4 and another terminal (for example, the second terminal) are arranged at one end of the case as in the conventional switch. Therefore, it can be designed more easily than before.

本実施形態の開閉器（分岐開閉器３）において、接続回路（短絡回路３２）は導電板で構成され、第４端子ｔ４は導電板の一部であるとしてもよい。この構成によると、ねじ端子を設ける場合と比較して、開閉器を小型にすることができる。 In the switch (branch switch 3) of the present embodiment, the connection circuit (short circuit 32) may be composed of a conductive plate, and the fourth terminal t4 may be a part of the conductive plate. According to this configuration, the switch can be made smaller than the case where the screw terminal is provided.

本実施形態の開閉器（分岐開閉器３）において、第１端子ｔ１、第２端子ｔ２、第３端子ｔ３、第４端子ｔ４、接点部３１、及び接続回路（短絡回路３２）を収納（保持）するケース３０をさらに備えてもよい。第４端子ｔ４は、ケース３０を取り付けるために分電盤１に設けられた金属製の取付部材４と導通し、取付部材４を介して接地端子１１と電気的に接続されるように構成されてもよい。 In the switch (branch switch 3) of the present embodiment, the first terminal t1, the second terminal t2, the third terminal t3, the fourth terminal t4, the contact portion 31, and the connection circuit (short circuit 32) are housed (held). ) May be further provided. The fourth terminal t4 is configured to conduct with a metal mounting member 4 provided on the distribution board 1 for mounting the case 30 and to be electrically connected to the ground terminal 11 via the mounting member 4. You may.

分電盤１の取付部材４に分岐開閉器３のケース３０を取り付けるだけで、第４端子ｔ４が取付部材４を介して接地端子１１に電気的に接続されるので、第４端子ｔ４を接地するために別の作業を行う必要がなく、施工作業が簡単になる。 By simply attaching the case 30 of the branch switch 3 to the mounting member 4 of the distribution board 1, the fourth terminal t4 is electrically connected to the ground terminal 11 via the mounting member 4, so that the fourth terminal t4 is grounded. There is no need to perform another work to do this, which simplifies the construction work.

取付部材４に複数の分岐開閉器３が接続される場合、複数の分岐開閉器３の各々が備える第４端子ｔ４は取付部材４に電気的に接続されるから、取付部材４で集中接地端子を兼用することができ、取付部材４とは別に集中接地端子を備える必要がない。 When a plurality of branch switches 3 are connected to the mounting member 4, the fourth terminal t4 provided in each of the plurality of branch switches 3 is electrically connected to the mounting member 4, so that the mounting member 4 is a centralized ground terminal. It is not necessary to provide a centralized ground terminal separately from the mounting member 4.

本実施形態の開閉器（分岐開閉器３）において、第１端子ｔ１、第２端子ｔ２、第３端子ｔ３、第４端子ｔ４、接点部３１、及び接続回路（短絡回路３２）を収納（保持）するケース３０をさらに備えてもよい。ケース３０には貫通孔３０ａが設けられている。第４端子ｔ４は、貫通孔３０ａを通してケース３０の表面から突出した状態で、分電盤１に設けられた接触部材４ａと接触し、接触部材４ａを介して接地端子１１と電気的に接続されるように構成されてもよい。 In the switch (branch switch 3) of the present embodiment, the first terminal t1, the second terminal t2, the third terminal t3, the fourth terminal t4, the contact portion 31, and the connection circuit (short circuit 32) are housed (held). ) May be further provided. The case 30 is provided with a through hole 30a. The fourth terminal t4 is in contact with the contact member 4a provided on the distribution board 1 in a state of protruding from the surface of the case 30 through the through hole 30a, and is electrically connected to the ground terminal 11 via the contact member 4a. It may be configured to be.

複数の分岐開閉器３を分電盤１に収納する場合、複数の分岐開閉器３の各々が備える第４端子ｔ４は接触部材４ａに電気的に接続されるから、接触部材４ａで集中接地端子を兼用することができ、接触部材４ａとは別に集中接地端子を備える必要がない。 When a plurality of branch switches 3 are housed in the distribution board 1, the fourth terminal t4 provided in each of the plurality of branch switches 3 is electrically connected to the contact member 4a, so that the contact member 4a is a centralized ground terminal. It is not necessary to provide a centralized ground terminal separately from the contact member 4a.

また本実施形態の分電盤１は、上記の開閉器（分岐開閉器３）と、開閉器（分岐開閉器３）を収納するキャビネット１０とを備えたことを特徴とする。 Further, the distribution board 1 of the present embodiment is characterized by including the above-mentioned switch (branch switch 3) and a cabinet 10 for accommodating the switch (branch switch 3).

本実施形態の分電盤１によれば、分岐開閉器３が備える第３端子ｔ３に接地分岐線２０３が接続されることによって、分電盤１の集中接地端子を介して接地分岐線２０３が接地される。複数の分岐開閉器３を分電盤１に設置する場合に、接地端子１１に接地するように作業を行えばよく、複数の分岐開閉器３を個別に接地端子を用意し、個々に接地する必要がなくなる。そのため、本実施形態の分電盤１において、接地線を接続する作業を容易に行うことができる。 According to the distribution board 1 of the present embodiment, by connecting the ground branch line 203 to the third terminal t3 provided in the branch switch 3, the ground branch line 203 is connected to the centralized ground terminal of the distribution board 1. Be grounded. When a plurality of branch switches 3 are installed on the distribution board 1, the work may be performed so as to ground the ground terminals 11, and the plurality of branch switches 3 are individually prepared with ground terminals and grounded individually. No need. Therefore, in the distribution board 1 of the present embodiment, the work of connecting the ground wire can be easily performed.

また、第３端子ｔ３を３速結型の端子で構成した場合には、接地分岐線２０３を第３端子ｔ３に接続する作業を容易にした分電盤１を実現できる。 Further, when the third terminal t3 is configured by the three-speed connection type terminal, the distribution board 1 can be realized which facilitates the work of connecting the ground branch line 203 to the third terminal t3.

１分電盤
３分岐開閉器（開閉器）
４取付部材
４ａ接触部材
５導電バー（母線、第１電線）
１０キャビネット
１１接地端子
３０ケース
３０ａ貫通孔
３１接点部
３２短絡回路（接続回路）
８０速結端子（第３端子）
１００商用電源（電源）
２０２分岐線（第２電線）
２０３接地分岐線（接地線）
ｔ１第１端子
ｔ２第２端子
ｔ３第３端子
ｔ４第４端子 1 Distribution board 3 Branch switch (switch)
4 Mounting member 4a Contact member 5 Conductive bar (bus, first wire)
10 Cabinet 11 Ground terminal 30 Case 30a Through hole 31 Contact part 32 Short circuit (connection circuit)
80 Quick connection terminal (3rd terminal)
100 Commercial power supply (power supply)
202 branch line (second wire)
203 Grounding branch line (grounding line)
t1 1st terminal t2 2nd terminal t3 3rd terminal t4 4th terminal

Claims

The first terminal, which is electrically connected to the power supply,
The second terminal, which is electrically connected to the load,
A contact portion electrically connected between the first terminal and the second terminal,
A third terminal to which a ground wire electrically connected to the load is connected,
The fourth terminal, which is electrically connected to the ground terminal provided on the distribution board,
A connection circuit that electrically connects the third terminal and the fourth terminal,
A case for holding the second terminal, the third terminal, the fourth terminal, and the connection circuit is provided.
The fourth terminal is configured to conduct with a metal mounting member provided on the distribution board for mounting the case and to be electrically connected to the ground terminal via the mounting member. A switch that is characterized by that.

The first terminal, which is electrically connected to the power supply,
The second terminal, which is electrically connected to the load,
A contact portion electrically connected between the first terminal and the second terminal,
A third terminal to which a ground wire electrically connected to the load is connected,
The fourth terminal, which is electrically connected to the ground terminal provided on the distribution board,
A connection circuit that electrically connects the third terminal and the fourth terminal,
A case for holding the second terminal, the third terminal, the fourth terminal, and the connection circuit is provided.
The case is provided with a through hole.
The fourth terminal comes into contact with a contact member provided on the distribution board in a state of protruding from the surface of the case through the through hole, and is electrically connected to the ground terminal via the contact member. A switchboard characterized by being configured in this way.

The switch according to claim 1 or 2, wherein the third terminal is a quick-connect terminal.

The switch according to any one of claims 1 to 3, wherein the fourth terminal is provided on the rear surface side of the case.

The switch according to any one of claims 1 to 4, wherein the connection circuit is formed of a conductive plate, and the fourth terminal is a part of the conductive plate.

The switch according to any one of claims 1 to 5 and the switch.
A distribution board characterized by being provided with a cabinet for storing the switch.