JP3228039B2 - Earth leakage breaker - Google Patents
Earth leakage breakerInfo
- Publication number
- JP3228039B2 JP3228039B2 JP32697894A JP32697894A JP3228039B2 JP 3228039 B2 JP3228039 B2 JP 3228039B2 JP 32697894 A JP32697894 A JP 32697894A JP 32697894 A JP32697894 A JP 32697894A JP 3228039 B2 JP3228039 B2 JP 3228039B2
- Authority
- JP
- Japan
- Prior art keywords
- pole
- zero
- conductor
- phase current
- current transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Description
【０００１】[0001]
【産業上の利用分野】この発明は、中容量以上の漏電遮
断器の零相変流器に挿通される一次導体の配置の改良に
より漏電遮断器を小形化するものに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a miniaturized earth leakage breaker by improving the arrangement of a primary conductor inserted into a zero-phase current transformer of an earth leakage breaker having a medium capacity or more.
【０００２】[0002]
【従来の技術】図９は、例えば特開平５−２８９０４号
公報に示された従来の漏電遮断器を示す要部の平面図で
ある。図において、１はモールドケース、2R，2S，2Tは
コ字状の板導体からなり、主回路電流が流れる一次導体
であり、両端側を折り曲げて負荷側接続端子部3R，3S，
3Tとヒータ側接続端子部4R，4S，4Tを有している。５は
自動引き外し装置、6R，6S，6Tは自動引き外し装置５の
ヒータ端子であり、図示しないがそれぞれ開閉接点に接
続されている。７は各ヒータ側接続端子部4R，4S，4Tと
各ヒータ端子6R，6S，6Tとをそれぞれ固定するネジであ
る。８は各一次導体2R，2S，2Tを一括して貫通し漏電不
平衡電流を検出する零相変流器である。2. Description of the Related Art FIG. 9 is a plan view of a main part showing a conventional earth leakage breaker disclosed in, for example, Japanese Patent Application Laid-Open No. 5-28904. In the figure, 1 is a molded case, 2R, 2S, 2T are U-shaped plate conductors, which are primary conductors through which the main circuit current flows.
It has 3T and heater-side connection terminals 4R, 4S, 4T. Reference numeral 5 denotes an automatic tripping device, and 6R, 6S, and 6T denote heater terminals of the automatic tripping device 5, which are respectively connected to open / close contacts (not shown). Reference numeral 7 denotes screws for fixing the heater-side connection terminals 4R, 4S, 4T and the heater terminals 6R, 6S, 6T, respectively. Numeral 8 denotes a zero-phase current transformer which collectively penetrates the primary conductors 2R, 2S, 2T and detects a leakage unbalance current.
【０００３】このような従来の漏電遮断器においては、
主回路に漏電が生じて零相電流が流れると、この零相電
流は零相変流器８によってピックアップされ、これを電
気的増幅を行ない自動引き外し装置５に伝え、自動引き
外し装置５によって開閉接点を開離する。[0003] In such a conventional earth leakage breaker,
When a leakage occurs in the main circuit and a zero-phase current flows, the zero-phase current is picked up by the zero-phase current transformer 8, electrically amplified and transmitted to the automatic tripping device 5, and the automatic tripping device 5 Open the switching contact.
【０００４】[0004]
【発明が解決しようとする課題】上記のような従来の漏
電遮断器では、一次導体2R，2S，2Tを零相変流器８に一
括して貫通しているが、その入口部および出口部におい
て、一次導体2Tのコ字状導体部2a，2bが、零相変流器８
と一次導体2Sのコ字状導体部2c，2d間に配設される。こ
のため、モールドケース１内に配置したときに、遮断器
の長手方向において、一次導体2Sと一次導体2Tが重なる
ため一次導体の所要距離Ｌが長くなり、遮断器が長くな
って大形化するという問題点があった。In the conventional earth leakage circuit breaker as described above, the primary conductors 2R, 2S and 2T pass through the zero-phase current transformer 8 at a time. , The U-shaped conductor portions 2a and 2b of the primary conductor 2T are
And between the U-shaped conductor portions 2c and 2d of the primary conductor 2S. For this reason, when arranged in the mold case 1, the primary conductor 2S and the primary conductor 2T overlap in the longitudinal direction of the circuit breaker, so that the required distance L of the primary conductor becomes longer, and the circuit breaker becomes longer and larger. There was a problem.
【０００５】この発明は、上述のような課題を解決する
ためになされたもので、一次導体の形状ならびに配置を
変えることにより、遮断器の長さを短くして漏電遮断器
の小形化を図ることを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the size and arrangement of the primary conductors are changed to shorten the length of the circuit breaker and reduce the size of the earth leakage circuit breaker. The purpose is to:
【０００６】[0006]
【課題を解決するための手段】この発明に係る漏電遮断
器においては、複数極の開閉接点を接離させる開閉機構
と、この開閉機構が収納され且つ外部電線が接続される
端子が並設されたモールドケース、このモールドケース
の上記開閉機構極以外の極位置に配設され漏電不平衡電
流を検出する零相変流器、この零相変流器に一括貫通さ
れ主回路電流を流す複数の一次導体、この各一次導体の
貫通部と負荷側各端子を接続する負荷側導体片の少なく
とも２極の負荷側導体片を上記貫通孔の貫通方向からみ
て並設かつ貫通方向の垂直面からみて同列に配設したも
のである。In the earth leakage circuit breaker according to the present invention, an open / close mechanism for connecting / disconnecting a plurality of open / close contacts and a terminal accommodating the open / close mechanism and connected to an external electric wire are provided side by side. Mold case, a zero-phase current transformer arranged at a pole position other than the switching mechanism pole of the mold case to detect a leakage unbalanced current, and a plurality of main-circuit currents that are collectively penetrated through the zero-phase current transformer. primary conductor, viewed from the penetration direction of the through hole of the load-side conductor strip of the at least two poles of the load-side conductor strip connecting the load-side each terminal and the through portion of each primary conductor
They are arranged side by side and arranged in the same row when viewed from the vertical plane in the penetration direction .
【０００７】また、零相変流器の各一次導体の貫通部か
ら開閉接点の一方へ導く少なくとも２極の導体片を上記
貫通孔の貫通方向からみて並設かつ貫通方向の垂直面か
らみて同列に配設したものである。Further, the at least two poles conductor piece guided through the through region of the primary conductor of the zero-phase current transformer to one of the switching contacts
Are they juxtaposed and perpendicular to the penetration direction when viewed from the penetration direction
They are arranged in the same row.
【０００８】さらに、零相変流器の配設された極を挟ん
で開閉機構の配設された極の反対側に中性極を設け４極
の漏電不平衡電流の検出を可能としたものである。Further, a neutral pole is provided on the opposite side of the pole on which the switching mechanism is disposed with the pole on which the zero-phase current transformer is disposed interposed therebetween, thereby enabling detection of four-pole leakage unbalance current. It is.
【０００９】[0009]
【作用】上記のように構成された漏電遮断器において
は、零相変流器を貫通し主回路電流が流れる複数の一次
導体の貫通部から負荷側各端子へ接続する負荷側導体片
の少なくとも２極の負荷側導体片を上記貫通孔の貫通方
向からみて並設かつ貫通方向の垂直面からみて同列に配
設することにより、負荷側各端子と零相変流器との間の
配線スペ-スが、一次導体の板厚一枚分で良くなる。In the earth leakage breaker configured as described above, at least one of the load-side conductor pieces connected to the load-side terminals from the through portions of the plurality of primary conductors that pass through the zero-phase current transformer and through which the main circuit current flows. How to insert the 2-pole load-side conductor piece through the through hole
The wiring space between each terminal on the load side and the zero-phase current transformer can be reduced by the thickness of the primary conductor by one sheet by arranging them side by side and in the same row when viewed from the vertical plane in the penetration direction. Get better.
【００１０】また、零相変流器の各一次導体の貫通部か
ら開閉接点の一方へ導く導体片、この導体片の少なくと
も２極の導体片を上記貫通孔の貫通方向からみて並設か
つ貫通方向の垂直面からみて同列に配設することによ
り、零相変流器と開閉機構との間のスペースを短縮でき
る。[0010] Also, a conductor piece leading from the through portion of each primary conductor of the zero-phase current transformer to one of the switching contacts, and at least two-pole conductor pieces of this conductor piece are juxtaposed as viewed from the through direction of the through hole.
By arranging them in the same row when viewed from the vertical plane in the direction of penetration, the space between the zero-phase current transformer and the switching mechanism can be reduced.
【００１１】さらに、零相変流器の配設された極を挟ん
で開閉機構の配設された極の反対側に中性極を設け４極
の漏電不平衡電流の検出を可能とすることにより、負荷
側各端子と開閉機構との間のスペ−スを短縮した４極漏
電遮断器が得られる。Further, a neutral pole is provided on the opposite side of the pole provided with the switching mechanism with respect to the pole provided with the zero-phase current transformer, thereby enabling detection of four-pole leakage unbalanced current. As a result, a four-pole earth leakage breaker in which the space between each terminal on the load side and the switching mechanism is reduced is obtained.
【００１２】[0012]
実施例１．図１、図２はこの発明の一実施例である漏電
遮断器の要部を示すもので、図１は平面図、図２は図１
の正面図である。図において、11は合成樹脂製のモール
ドケース、21は開閉接点を有する可動接触子、22は３極
の可動接触子21を同時に開閉するためのクロスバー、23
は可動接触子21を開閉させる開閉機構（詳細構造は図示
せず）である。12，13，14は負荷側端子であり、開閉機
構23が設けられた中央極をＳ極、開閉機構23のない左側
の隣接極をＲ極、開閉機構23のない右側の隣接極をＴ極
とすると、負荷側端子12にはＲ極一次導体15が、負荷側
端子13にはＳ極一次導体16が、そして負荷側端子14には
Ｔ極一次導体17が各々接続されている。18は楕円形の貫
通孔18aを有する零相変流器であり、開閉機構23の設け
られた中央極へ配置すると開閉機構23の所要寸法が加わ
り遮断器が長くなるために、開閉機構23のない隣接極の
一方Ｔ極に配設されている。各一次導体15，16，17が貫
通孔18aを一括して貫通し、漏電不平衡電流を検出する
ようになっている。19は可撓導体であり、一端は各一次
導体15，16，17に接続され、主回路に流れる電流を検出
する変流器20をそれぞれ介して、他端は可動接触子21に
接続されている。Embodiment 1 FIG. 1 and 2 show an essential part of an earth leakage circuit breaker according to an embodiment of the present invention. FIG. 1 is a plan view, and FIG.
FIG. In the figure, 11 is a synthetic resin mold case, 21 is a movable contact having an open / close contact, 22 is a crossbar for simultaneously opening and closing the three-pole movable contact 21, 23
Denotes an opening / closing mechanism for opening and closing the movable contact 21 (detailed structure is not shown). Reference numerals 12, 13, and 14 denote load terminals. The center pole provided with the switching mechanism 23 is an S pole, the left adjacent pole without the switching mechanism 23 is an R pole, and the right adjacent pole without the switching mechanism 23 is a T pole. Then, an R pole primary conductor 15 is connected to the load side terminal 12, an S pole primary conductor 16 is connected to the load side terminal 13, and a T pole primary conductor 17 is connected to the load side terminal 14, respectively. Reference numeral 18 denotes a zero-phase current transformer having an elliptical through-hole 18a, and when it is arranged at the center pole provided with the switching mechanism 23, the required size of the switching mechanism 23 is added and the circuit breaker becomes longer. One adjacent T-pole is disposed. Each of the primary conductors 15, 16, and 17 collectively penetrates the through hole 18a, and detects a leakage unbalance current. Reference numeral 19 denotes a flexible conductor, one end of which is connected to each of the primary conductors 15, 16, and 17, and the other end of which is connected to a movable contact 21 via a current transformer 20 for detecting a current flowing through the main circuit. I have.
【００１３】図３はＲ極一次導体15の詳細形状と遮断器
本体に組み込まれた状態を示すもので、（Ａ）は平面
図、（Ｂ）は正面図である。Ｒ極の一次導体15は銅帯か
ら打抜きおよび曲げ加工により、零相変流器18の右側側
面18bに平行するＲ極負荷側導体片15aと、零相変流器18
の貫通部のＲ極貫通導体片15bと、零相変流器18の左側
側面18cに平行するＲ極導体片15cと、Ｒ極可撓導体接続
片15dから形成されている。零相変流器18の組み込み
は、零相変流器18にＲ極貫通導体片15bを貫通させた
後、矢印の方向に回転させて一点鎖線の位置に移動さ
せ、Ｃ部分を溶接して一体化している。また、Ｒ極貫通
導体片15bには零相変流器18が回転可能なように角部に
切欠き部Ｄが形成されている。なお、Ｒ極負荷側導体片
15aと負荷側端子12は曲げ加工により一体に形成される
か、あるいは別体のものをＥ部で溶接加工されている。FIGS. 3A and 3B show the detailed shape of the R-pole primary conductor 15 and a state in which the R-pole primary conductor 15 is incorporated in the circuit breaker main body, wherein FIG. 3A is a plan view and FIG. The R-pole primary conductor 15 is stamped and bent from a copper strip to form an R-pole load-side conductor piece 15a parallel to the right side surface 18b of the zero-phase current transformer 18 and a zero-phase current transformer 18
, An R-pole conductor piece 15c parallel to the left side face 18c of the zero-phase current transformer 18, and an R-pole flexible conductor connection piece 15d. The incorporation of the zero-phase current transformer 18 is performed by penetrating the R-pole penetrating conductor piece 15b through the zero-phase current transformer 18, rotating in the direction of the arrow to move the position to the dashed line, and welding the C portion. It is integrated. A cutout D is formed at the corner of the R pole penetrating conductor piece 15b so that the zero-phase current transformer 18 can rotate. Note that the R pole load side conductor piece
The load terminal 15a and the load terminal 12 are integrally formed by bending, or are separately formed by welding at the portion E.
【００１４】図４はＳ極の一次導体16の詳細形状と遮断
器本体に組み込まれた状態を示すもので、（Ａ）は平面
図、（Ｂ）は正面図である。Ｓ極一次導体16は銅帯から
打抜きおよび曲げ加工により、零相変流器18の右側側面
18bに平行するＳ極負荷側導体片16aと、零相変流器18の
貫通部のＳ極貫通導体片16bと、零相変流器18の左側側
面18cに平行するＳ極導体片16cと、Ｓ極可撓導体接続片
16dとから一体に形成されている。FIGS. 4A and 4B show the detailed shape of the primary conductor 16 of the S pole and a state in which the primary conductor 16 is incorporated in the circuit breaker main body, wherein FIG. 4A is a plan view and FIG. The S pole primary conductor 16 is stamped and bent from a copper strip to form the right side of the zero-phase current transformer 18.
An S-pole load side conductor piece 16a parallel to 18b, an S-pole through conductor piece 16b at the penetrating portion of the zero-phase current transformer 18, and an S-pole conductor piece 16c parallel to the left side face 18c of the zero-phase current transformer 18 , S pole flexible conductor connection piece
It is formed integrally with 16d.
【００１５】図５はＴ極一次導体17の詳細形状と遮断器
本体に組み込まれた状態を示すもので、（Ａ）は平面
図、（Ｂ）は正面図である。Ｔ極一次導体17は銅帯から
打抜き加工により負荷側端子14と一体に形成され、図５
（Ｂ）に示すとおり零相変流器18の貫通孔18aの右端部
を貫通している。FIGS. 5A and 5B show the detailed shape of the T-pole primary conductor 17 and a state in which the T-pole primary conductor 17 is incorporated in the circuit breaker main body. FIG. 5A is a plan view and FIG. The T-pole primary conductor 17 is formed integrally with the load-side terminal 14 by punching from a copper strip.
As shown in (B), it penetrates the right end of the through-hole 18a of the zero-phase current transformer 18.
【００１６】図６は各極の一次導体15，16が零相変流器
18を貫通する前後における配置状態を示すもので、零相
変流器18の左側において、Ｒ極負荷側導体片15aとＳ極
負荷側導体片16aが上下に同列に配置される。このよう
に構成された漏電遮断器では、Ｒ極負荷側導体片15aと
Ｓ極負荷側導体片16aが遮断器の長手方向において重な
らないので、図１に示すように負荷側端子12，13，14と
零相変流器18との距離Ｌ１が短くなり、遮断器の長さを
短くすることができる。FIG. 6 shows that the primary conductors 15 and 16 of each pole are zero-phase current transformers.
This shows an arrangement state before and after passing through 18, and on the left side of the zero-phase current transformer 18, an R-pole load-side conductor piece 15 a and an S-pole load-side conductor piece 16 a are vertically arranged in the same row. In the earth leakage circuit breaker configured as described above, the R-pole load side conductor piece 15a and the S-pole load side conductor piece 16a do not overlap in the longitudinal direction of the circuit breaker, and therefore, as shown in FIG. The distance L1 between 14 and the zero-phase current transformer 18 is shortened, and the length of the circuit breaker can be shortened.
【００１７】また、零相変流器18の右側において、Ｒ極
導体片15cとＳ極導体片16cが上下に同列に配置されてい
る。このように構成された漏電遮断器においては、零相
変流器18と開閉機構23との距離Ｌ２（図１に示す）が短
くなり、遮断器の長さを更に短くすることができる。On the right side of the zero-phase current transformer 18, an R-pole conductor piece 15c and an S-pole conductor piece 16c are vertically arranged in the same row. In the earth leakage breaker configured as described above, the distance L2 (shown in FIG. 1) between the zero-phase current transformer 18 and the switching mechanism 23 is reduced, and the length of the circuit breaker can be further reduced.
【００１８】実施例２．図７および図８はこの発明の他
の実施例である４極漏電遮断器の要部を示すもので、図
７は平面図、図８は図７の正面図である。図において、
11〜23は上記実施例１において説明のものと同一であ
る。30は中性極であるＮ極の負荷側端子であり、Ｎ極一
次導体31が接続されている。Ｎ極一次導体31は銅帯から
打抜きおよび曲げ加工により、Ｎ極負荷側導体片31a
と、零相変流器18を貫通するＮ極貫通導体片31bと、Ｎ
極導体片31cとを一体にしてコ字状に形成されている。
３極の漏電遮断器に対して、Ｎ極を零相変流器18を挟ん
で開閉機構23の配設された極の反対側に設けたので、Ｎ
極一次導体31は零相変流器18の貫通孔18aの中心軸にＳ
極一次導体16とほぼ対称に配設することができる。この
実施例によれば、Ｎ極一次導体31を追加して設置して
も、Ｎ極貫通導体片31bは零相変流器18を貫通させるこ
とができ、Ｎ極一次導体31のＮ極負荷側導体片31aおよ
びＮ極導体片31cは、Ｒ極負荷側導体片15a、Ｓ極負荷側
導体片16aおよびＲ極導体片15c、Ｓ極導体片16cと干渉
しない配置となる。従って、中性極を追加した４極漏電
遮断器においても負荷側各端子と開閉機構23との距離Ｌ
３は３極品と同一に構成することができる。Embodiment 2 FIG. 7 and 8 show a main part of a four-pole earth leakage circuit breaker according to another embodiment of the present invention. FIG. 7 is a plan view and FIG. 8 is a front view of FIG. In the figure,
11 to 23 are the same as those described in the first embodiment. Reference numeral 30 denotes a load-side terminal of an N-pole, which is a neutral pole, to which an N-pole primary conductor 31 is connected. The N-pole primary conductor 31 is stamped and bent from a copper strip to form the N-pole load-side conductor piece 31a.
N-pole penetrating conductor piece 31b penetrating through zero-phase current transformer 18,
The pole conductor piece 31c is integrally formed in a U-shape.
For the three-pole earth leakage breaker, the N pole is provided on the opposite side of the pole provided with the switching mechanism 23 with the zero-phase current transformer 18 interposed therebetween.
The pole primary conductor 31 is connected to the center axis of the through hole 18a of the zero-phase current transformer 18 by S
It can be arranged substantially symmetrically with the pole primary conductor 16. According to this embodiment, even if the N-pole primary conductor 31 is additionally installed, the N-pole penetrating conductor piece 31b can penetrate the zero-phase current transformer 18, and the N-pole load on the N-pole primary conductor 31 can be increased. The side conductor piece 31a and the N pole conductor piece 31c are arranged so as not to interfere with the R pole load side conductor piece 15a, the S pole load side conductor piece 16a, the R pole conductor piece 15c, and the S pole conductor piece 16c. Therefore, even in a four-pole earth leakage breaker to which a neutral pole is added, the distance L between each terminal on the load side and the switching mechanism 23 is determined.
3 can be configured the same as a three-pole product.
【００１９】[0019]
【発明の効果】この発明は、以上説明したように構成さ
れているので、以下に記載されるような効果を奏する。Since the present invention is configured as described above, it has the following effects.
【００２０】零相変流器に貫通され主回路電流を流す複
数の一次導体の各一次導体の貫通部から負荷側各端子へ
接続する負荷側導体片の少なくとも２極の負荷側導体片
を上記貫通孔の貫通方向からみて並設かつ貫通方向の垂
直面からみて同列に配設することにより、負荷側各端子
と零相変流器との距離を短くすることにより、遮断器の
長さが短くなり小形にできる。The load-side conductor pieces of at least two poles of the load-side conductor pieces connected to the respective load-side terminals from the respective primary conductor through-holes of the plurality of primary conductors that pass through the zero-phase current transformer and allow the main circuit current to flow therethrough are described above. Viewed in parallel with the through hole
By disposing them in the same row when viewed from the front, the distance between each terminal on the load side and the zero-phase current transformer can be shortened, so that the length of the circuit breaker can be shortened and downsized.
【００２１】また、零相変流器の各一次導体の貫通部か
らそれぞれ開閉接点の一方へ導く導体片、この導体片の
少なくとも２極の導体片を上記貫通孔の貫通方向からみ
て並設かつ貫通方向の垂直面からみて同列に配設するこ
とにより、零相変流器と開閉機構との距離が短くなり、
遮断器の長さが短くなり小形になる。Further, a conductor piece which leads from the penetration of each primary conductor of the zero-phase current transformer to one of the switching contacts, and at least two poles of this conductor piece are viewed from the direction of penetration of the through hole.
The distance between the zero-phase current transformer and the switching mechanism is shortened by arranging them side by side and arranging them in the same row when viewed from the vertical plane
The circuit breaker length becomes shorter and smaller.
【００２２】さらに、零相変流器の配設された極を挟ん
で開閉機構の配設された極の反対側に中性極を設けたの
で、他の極の負荷側導体片および導体片と干渉しないで
配置することができ、中性極を設けたにもかかわらず３
極品と同一長さの４極漏電遮断器が得られる。Further, since the neutral pole is provided on the opposite side of the pole on which the switching mechanism is disposed across the pole on which the zero-phase current transformer is disposed, the load-side conductor pieces and conductor pieces of the other poles are provided. Can be arranged without interfering with
A 4-pole earth leakage breaker of the same length as the pole product is obtained.
【図１】 この発明の一実施例である漏電遮断器の要部
を示す一部を切り欠いた平面図である。FIG. 1 is a partially cutaway plan view showing a main part of an earth leakage breaker according to an embodiment of the present invention.
【図２】 図１の正面図である。FIG. 2 is a front view of FIG.
【図３】 この発明のＲ極一次導体が遮断器に組み込ま
れた状態を示す図であり、（Ａ）は平面図、（Ｂ）は正
面図である。FIG. 3 is a diagram showing a state in which the R-pole primary conductor of the present invention is incorporated in a circuit breaker, (A) is a plan view, and (B) is a front view.
【図４】 この発明のＳ極一次導体が遮断器に組み込ま
れた状態を示す図であり、（Ａ）は平面図、（Ｂ）は正
面図である。FIG. 4 is a diagram showing a state in which the S-pole primary conductor of the present invention is incorporated in a circuit breaker, wherein (A) is a plan view and (B) is a front view.
【図５】 この発明のＴ極一次導体が遮断器に組み込ま
れた状態を示す図であり、（Ａ）は平面図、（Ｂ）は正
面図である。FIG. 5 is a view showing a state in which the T-pole primary conductor of the present invention is incorporated in a circuit breaker, wherein (A) is a plan view and (B) is a front view.
【図６】 図２の線Ｄ−Ｄ断面図である。FIG. 6 is a sectional view taken along line DD of FIG. 2;
【図７】 この発明の他の実施例である漏電遮断器の要
部を示す一部を切り欠いた平面図である。FIG. 7 is a partially cutaway plan view showing a main part of an earth leakage breaker according to another embodiment of the present invention.
【図８】 図７の正面図である。FIG. 8 is a front view of FIG. 7;
【図９】 従来の漏電遮断器を示す要部の平面図であ
る。FIG. 9 is a plan view of a main part showing a conventional earth leakage breaker.
11 モールドケース、 12，13，14 負荷側端子、
15 Ｒ極一次導体 15a Ｒ極負荷側導体片、 15c Ｒ極導体片、 16
Ｓ極一次導体 16a Ｓ極負荷側導体片、 16c Ｓ極導体片、 17
Ｔ極一次導体 18 零相変流器、 １８ａ 貫通孔、 21 可動接触
子、 23 開閉機構 31 Ｎ極一次導体。11 Mold case, 12, 13, 14 Load terminal,
15 R pole primary conductor 15a R pole load side conductor piece, 15c R pole conductor piece, 16
S pole primary conductor 16a S pole load side conductor piece, 16c S pole conductor piece, 17
T pole primary conductor 18 zero-phase current transformer, 18a through hole , 21 movable contact, 23 switching mechanism 31 N pole primary conductor.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 岸本 康雄 福山市緑町１番８号 三菱電機エンジニ アリング株式会社 姫路事業所福山支所 内 (56)参考文献 特開 平３−43931（ＪＰ，Ａ) 特開 昭59−203338（ＪＰ，Ａ) 特開 平６−215682（ＪＰ，Ａ) 特開 平５−28904（ＪＰ，Ａ) 実開 平４−24244（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01H 83/02 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Yasuo Kishimoto 1-8 Midoricho, Fukuyama-shi Mitsubishi Electric Engineering Co., Ltd. Himeji Office Fukuyama Branch (56) References JP-A-3-43931 (JP, A) JP-A-59-203338 (JP, A) JP-A-6-215682 (JP, A) JP-A-5-28904 (JP, A) JP-A-4-24244 (JP, U) (58) Int.Cl. 7 , DB name) H01H 83/02
Claims (4)
構、この開閉機構を収納し且つ外部電線が接続される複
数極対応の負荷側端子が並設されたモールドケース、こ
のモールドケースの上記開閉機構極以外の極位置に配設
された漏電不平衡電流を検出する零相変流器、この零相
変流器の貫通孔に貫通され主回路電流を流す複数極対応
の一次導体、この各一次導体の貫通部と上記負荷側端子
を接続する各負荷側導体片、この負荷側導体片の少なく
とも２極の負荷側導体片を上記貫通孔の貫通方向からみ
て並設かつ貫通方向の垂直面からみて同列に配設したこ
とを特徴とする漏電遮断器。An open / close mechanism for connecting / disconnecting a plurality of open / close contacts, a mold case housing the open / close mechanism and having a plurality of load-side terminals corresponding to a plurality of poles to which external electric wires are connected, A zero-phase current transformer arranged at a pole position other than the opening / closing mechanism pole to detect a leakage unbalanced current, a primary conductor corresponding to a plurality of poles that passes through a through-hole of the zero-phase current transformer and allows a main circuit current to flow, Each load-side conductor piece that connects the through-hole of each primary conductor and the load-side terminal, and at least two poles of the load-side conductor piece of the load-side conductor piece are viewed from the direction of penetration of the through-hole.
An earth leakage breaker characterized by being arranged side by side and arranged in the same row when viewed from a vertical plane in a penetration direction .
構、この開閉機構を収納し且つ外部電線が接続される複
数極対応の端子が並設されたモールドケース、このモー
ルドケースの上記開閉機構極以外の極位置に配設された
漏電不平衡電流を検出する零相変流器、この零相変流器
に貫通され主回路電流を流す複数極対応の一次導体、上
記零相変流器の貫通部から各一次導体を開閉接点の一方
へ接続する導体片、この導体片の少なくとも２極の導体
片を上記貫通孔の貫通方向からみて並設かつ貫通方向の
垂直面からみて同列に配設したことを特徴とする漏電遮
断器。2. An open / close mechanism for connecting / disconnecting a plurality of open / close contacts, a mold case accommodating the open / close mechanism and having a plurality of terminals corresponding to a plurality of poles to which an external electric wire is connected, and the open / close mechanism of the mold case. A zero-phase current transformer arranged at a pole position other than the pole to detect a leakage unbalanced current, a primary conductor corresponding to a plurality of poles that passes through the zero-phase current transformer and flows a main circuit current, the zero-phase current transformer the conductor pieces to be connected to one of the switching contacts each primary conductor through the through region of juxtaposed and penetrating direction of the conductor piece of the at least two poles of the conductor strip viewed from the penetration direction of the through hole
An earth leakage breaker characterized by being arranged in the same row as viewed from a vertical plane .
閉接点の一方へ接続する導体片、この導体片の少なくと
も２極の導体片を上記貫通孔の貫通方向からみて並設か
つ貫通方向の垂直面からみて同列に配設したことを特徴
とする請求項１記載の漏電遮断器。3. A conductor piece for connecting each primary conductor to one of the switching contacts from a penetrating portion of the zero-phase current transformer, and whether at least two poles of this conductor piece are juxtaposed as viewed from the through direction of the through hole.
The earth leakage breaker according to claim 1, wherein the earth leakage breakers are arranged in the same row as viewed from a vertical plane in the through-hole direction .
機構の配設された極の反対側に中性極を設け中性極一次
導体を上記零相変流器に貫通させて４極の漏電不平衡電
流の検出を可能としたことを特徴とする請求項１〜請求
項３のいずれかに記載の漏電遮断器。4. A neutral pole is provided on the opposite side of the pole on which the switching mechanism is disposed across the pole on which the zero-phase current transformer is disposed, and a neutral primary conductor is passed through the zero-phase current transformer. The earth leakage breaker according to any one of claims 1 to 3, wherein the earth leakage unbalance current of four poles can be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32697894A JP3228039B2 (en) | 1994-12-28 | 1994-12-28 | Earth leakage breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32697894A JP3228039B2 (en) | 1994-12-28 | 1994-12-28 | Earth leakage breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08185787A JPH08185787A (en) | 1996-07-16 |
| JP3228039B2 true JP3228039B2 (en) | 2001-11-12 |
Family
ID=18193936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32697894A Expired - Lifetime JP3228039B2 (en) | 1994-12-28 | 1994-12-28 | Earth leakage breaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3228039B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4736949B2 (en) * | 2006-05-23 | 2011-07-27 | 富士電機機器制御株式会社 | Earth leakage breaker |
| JP4914297B2 (en) * | 2007-06-26 | 2012-04-11 | パナソニックエコソリューションズ電路株式会社 | Earth leakage breaker |
| JP7289100B2 (en) * | 2019-07-22 | 2023-06-09 | パナソニックＩｐマネジメント株式会社 | Earth leakage protector and distribution board |
-
1994
- 1994-12-28 JP JP32697894A patent/JP3228039B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08185787A (en) | 1996-07-16 |
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