JP2016085936A - Terminal cover of switch - Google Patents

Terminal cover of switch Download PDF

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JP2016085936A
JP2016085936A JP2014219857A JP2014219857A JP2016085936A JP 2016085936 A JP2016085936 A JP 2016085936A JP 2014219857 A JP2014219857 A JP 2014219857A JP 2014219857 A JP2014219857 A JP 2014219857A JP 2016085936 A JP2016085936 A JP 2016085936A
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switch
terminal
terminal cover
pole
attached
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JP6355524B2 (en
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浩之 岡村
Hiroyuki Okamura
浩之 岡村
大輔 納所
Daisuke Nosho
大輔 納所
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Nitto Kogyo Co Ltd
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Nitto Kogyo Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a terminal cover that can be attached to the power supply side and load side of a switch of uneven structure, while enhancing electrical shock prevention effect by projecting the end face farther than the end face of the switch.SOLUTION: A terminal cover of switch covers each terminal on the power supply side and load side of an uneven structure, where the height is different between different poles, and the power supply side and load side have the same height for each pole. The terminal cover body 3 has a length projecting farther in the longitudinal direction of the switch than the end of the switch 1 when attached thereto, and the attachment parts to the switch 1 are provided, respectively, to the opposite sides of the center of the terminal cover body 3 in the length direction.SELECTED DRAWING: Figure 3

Description

本発明は、開閉器の端子部に取付けられる開閉器の端子カバーに関するものである。   The present invention relates to a terminal cover of a switch attached to a terminal part of the switch.

開閉器の端子部には、感電事故等を防止するための合成樹脂製の端子カバーが取付けられている。開閉器の端子部の左右各極が同一高さの場合には、電源側の端子カバーを１８０度回転させて負荷側にも取付けることができる。   A terminal cover made of synthetic resin for preventing an electric shock accident or the like is attached to the terminal portion of the switch. When the left and right poles of the terminal part of the switch are the same height, the terminal cover on the power supply side can be rotated 180 degrees and attached to the load side.

しかし特許文献１に示されるように、開閉器の端子部が左右で段差を持たせた段違い構造である場合には、それに合わせて形成された端子カバーを１８０度回転させても反対側に取付けることができない。何故ならば開閉器の同一極は電源側でも負荷側でも同じ高さとなっているため、電源側から見て左側が高い場合には、負荷側から見ると右側が高くなる。これに対して電源側から見て左側が高い端子カバーは、１８０度回転させて負荷側から見ても左側が高いままであり、負荷側に取付け不能となるからである。   However, as shown in Patent Document 1, when the terminal portion of the switch has a stepped structure with left and right steps, it is attached to the opposite side even if the terminal cover formed accordingly is rotated 180 degrees. I can't. This is because the same pole of the switch has the same height on both the power supply side and the load side, and when the left side is high when viewed from the power supply side, the right side is high when viewed from the load side. On the other hand, the terminal cover whose left side is high when viewed from the power source side is rotated 180 degrees and the left side remains high when viewed from the load side, and cannot be attached to the load side.

なお図１に示すように、開閉器の端子部が左右で段差を持たせた段違い構造である場合であっても、電源側と負荷側との間で端子カバーを平行移動させて取付け可能なこともある。しかし感電防止効果を高めるために、端子カバーを長くしてその端面を開閉器の端子部の端面よりも突出させた場合には、平行移動させると突出部分が反対側では邪魔になるため、やはり取付け不能となる。このため開閉器の端子部が段違い構造である場合には、電源側の端子カバーと負荷側の端子カバーを別個に製造しなければならず、金型代を含む製造コストが高くなっていた。   In addition, as shown in FIG. 1, even if the terminal part of the switch has a stepped structure with left and right steps, the terminal cover can be mounted by translating between the power source side and the load side. Sometimes. However, in order to increase the effect of preventing electric shock, if the terminal cover is lengthened and its end surface protrudes beyond the end surface of the terminal part of the switch, the projecting part will become an obstacle on the opposite side if moved in parallel. It becomes impossible to install. For this reason, when the terminal part of the switch has a stepped structure, the terminal cover on the power source side and the terminal cover on the load side have to be manufactured separately, and the manufacturing cost including the mold cost has been high.

特開２００２−３２４４７２号公報JP 2002-324472 A

従って本発明の目的は上記した従来の問題点を解決し、段違い構造の開閉器の電源側と負荷側にも取付け可能であり、しかも端面を開閉器の端子部の端面よりも突出させて感電防止効果を高めた端子カバーを提供することである。   Accordingly, the object of the present invention is to solve the above-mentioned conventional problems, and can be mounted on the power supply side and the load side of a switch having a different structure, and the end face projects beyond the end face of the terminal part of the switch. It is to provide a terminal cover with an enhanced prevention effect.

上記の課題を解決するためになされた本発明は、異極間で高さが異なり、電源側と負荷側が極毎に同じ高さとなる段差構造の電源側と負荷側の各端子部を被覆する開閉器の端子カバーであって、端子カバー本体が開閉器に取付けたとき開閉器よりも開閉器の長手方向に突出する長さを備え、端子カバー本体の長さ方向の中心の両側に、開閉器への取付部をそれぞれ設けたことを特徴とするものである。   The present invention made in order to solve the above problems covers the power supply side and load side terminal portions of the step structure in which the heights are different between different poles, and the power supply side and the load side have the same height for each pole. A terminal cover for a switch that has a length that protrudes in the longitudinal direction of the switch when the terminal cover body is attached to the switch, and that opens and closes on both sides of the center of the terminal cover body in the longitudinal direction. Each is provided with an attachment portion to the vessel.

なお請求項２のように、端子カバー本体は、開閉器の端子部の左右を覆う側面部を備え、前記取付部は側面部を挟んで対称位置に形成された構造とすることができる。また請求項３のように、端子カバー本体は、開閉器の端子部の左右を覆う側面部を備え、開閉器の端子間に形成された隔壁に当接させるガイド部を前記側面部間に形成した構造とすることができる。   According to a second aspect of the present invention, the terminal cover body includes a side surface portion that covers the left and right sides of the terminal portion of the switch, and the attachment portion may be formed in a symmetrical position with the side surface portion interposed therebetween. According to a third aspect of the present invention, the terminal cover body includes side portions that cover the left and right sides of the terminal portion of the switch, and a guide portion that abuts against a partition formed between the terminals of the switch is formed between the side portions. The structure can be made.

本発明の端子カバーは、端子カバー本体が開閉器に取付けたとき開閉器よりも開閉器の長手方向に突出する長さを備え、端子カバー本体の長さ方向の中心の両側に開閉器への取付部をそれぞれ設けたものであるから、開閉器の端子部の接触保護が可能となるうえ、端子カバーの方向性をなくし、電源側端子と負荷側端子の両側に取付けが可能となる。このため部品の共通化を図ることができ、製造コストを引き下げることができる。また請求項３のようにガイド部を形成すれば、取付け位置まで端子カバーをガイドさせることができ、取付け作業性が向上する。   The terminal cover of the present invention has a length that protrudes in the longitudinal direction of the switch more than the switch when the terminal cover body is attached to the switch, and the terminal cover body is connected to the switch on both sides of the center in the length direction of the terminal cover body. Since each of the mounting portions is provided, contact protection of the terminal portion of the switch can be performed, and the direction of the terminal cover can be eliminated, and mounting can be performed on both sides of the power supply side terminal and the load side terminal. For this reason, it is possible to share parts and reduce the manufacturing cost. Further, if the guide portion is formed as in the third aspect, the terminal cover can be guided to the attachment position, and the attachment workability is improved.

従来の端子カバーの一例を示す斜視図である。It is a perspective view which shows an example of the conventional terminal cover. 本発明の端子カバーが取付けられる開閉器を示す斜視図である。It is a perspective view which shows the switch with which the terminal cover of this invention is attached. 実施形態を示す斜視図である。It is a perspective view which shows embodiment. 実施形態を示す背面斜視図である。It is a back perspective view showing an embodiment. 端子カバーの斜視図である。It is a perspective view of a terminal cover. 端子カバーを倒立させた斜視図である。It is the perspective view which inverted the terminal cover. 端子カバーの取付状態を示す断面図である。It is sectional drawing which shows the attachment state of a terminal cover.

以下に本発明の実施形態を説明する。
先ず図２に、本発明の端子カバーが取付けられる開閉器１を示す。この開閉器１は配線用遮断器であり、電源側と負荷側にそれぞれ端子部２を備えている。各端子部２は異極間で高さが異なり、かつ電源側と負荷側が極毎に同じ高さとなる段差構造となっている。１００Ｖ使用の場合には上側を感電のおそれのないＮ極とし、下側をＬ１またはＬ２極とするのが一般的である。この場合、Ｎ極は電源側でも負荷側でも高い移置にある。 Embodiments of the present invention will be described below.
First, FIG. 2 shows a switch 1 to which the terminal cover of the present invention is attached. The switch 1 is a circuit breaker for wiring, and includes a terminal portion 2 on each of the power supply side and the load side. Each terminal portion 2 has a step structure in which the height differs between different poles, and the power supply side and the load side have the same height for each pole. In the case of using 100 V, it is general that the upper side is an N pole with no risk of electric shock and the lower side is an L1 or L2 pole. In this case, the N pole is in a high displacement on both the power supply side and the load side.

図３と図４に開閉器１の端子部２に端子カバーを取付けた状態を示す。これらの図に示されるように、端子カバー本体３は開閉器１の端子部２に取付けたとき、端子部２の端面４よりも開閉器１の長手方向に突出する長さを備えている。これによって図１に示した従来構造よりも感電防止効果を高めている。   3 and 4 show a state in which a terminal cover is attached to the terminal portion 2 of the switch 1. As shown in these drawings, the terminal cover main body 3 has a length that protrudes in the longitudinal direction of the switch 1 from the end face 4 of the terminal unit 2 when attached to the terminal unit 2 of the switch 1. As a result, the effect of preventing electric shock is enhanced as compared with the conventional structure shown in FIG.

端子カバー本体３は図５、図６に示すように上面部５と、その左右端縁から垂直下方に垂下する側面部６、７を備えている。上面部５の左右幅は端子部２の幅と同一であり、開閉器１の長手方向の長さは端子部２の端面４よりも突出する長さである。側面部６は図３に示すように端子部２の上側極の側面をカバーする略Ｔ字形状となっており、他方の側面部７は図４に示すように端子部２の下側極の側面をカバーする四角形状となっている。側面部７は上面部５の端縁の長さに等しい。開閉器１の端子部２の左右を覆う側面部６、７は、隣接して接続される導電部である電線の圧着端子１６の側方向を覆う位置まで形成することが好ましい。また左右の側面部６、７の中央部には、端子部２の極間隔壁８の開閉器１の長手方向端部に位置させる中央面部９が形成されている。   As shown in FIGS. 5 and 6, the terminal cover main body 3 includes an upper surface portion 5 and side surface portions 6 and 7 that hang vertically downward from left and right edges. The left-right width of the upper surface portion 5 is the same as the width of the terminal portion 2, and the length in the longitudinal direction of the switch 1 is a length protruding from the end surface 4 of the terminal portion 2. As shown in FIG. 3, the side surface portion 6 is substantially T-shaped to cover the side surface of the upper pole of the terminal portion 2, and the other side surface portion 7 is the bottom electrode of the terminal portion 2 as shown in FIG. It has a quadrangular shape that covers the sides. The side surface portion 7 is equal to the length of the edge of the upper surface portion 5. It is preferable to form the side surface parts 6 and 7 that cover the left and right sides of the terminal part 2 of the switch 1 up to a position that covers the side direction of the crimp terminal 16 of the electric wire that is a conductive part connected adjacently. In addition, a central surface portion 9 is formed at the central portion of the left and right side surface portions 6 and 7 and is positioned at the end portion in the longitudinal direction of the switch 1 of the pole interval wall 8 of the terminal portion 2.

図５、図６に示されるように、側面部６と中央面部９との間には、４枚の垂下片１０が形成されており、その下端部には開閉器１への取付部１１が突設されている。これらの取付部１１は突起であり、図２に示した端子部２の上側極の隔壁１２及び極間隔壁８に形成された凹部１３に嵌合されることにより、端子カバーを端子部２に保持させるものである。従って垂下片１０、１０の左右方向の幅は、上側極の隔壁１２及び極間隔壁８の間に密着させて挿入できる幅としておく。   As shown in FIGS. 5 and 6, four drooping pieces 10 are formed between the side surface portion 6 and the central surface portion 9, and a mounting portion 11 for the switch 1 is provided at the lower end portion thereof. Projected. These attachment portions 11 are protrusions, and are fitted into the recesses 13 formed in the partition wall 12 and the pole interval wall 8 of the upper pole of the terminal portion 2 shown in FIG. It is to be held. Accordingly, the width in the left-right direction of the hanging pieces 10 and 10 is set to a width that allows the hanging pieces 10 and 10 to be inserted in close contact with each other between the partition wall 12 and the pole interval wall 8 of the upper pole.

また端子カバー本体３は、図５に示す中心線Ａ−Ａを挟んで対称形状であり、垂下片１０、１０も開閉器１の長手方向の対称位置に配置されている。換言すれば垂下片１０、１０及びその先端の取付部１１は側面部６を挟んで対称位置に形成されている。このため開閉器１の長手方向の片側の左右一対の取付部１１、１１を利用して、図３あるいは図４に示すように、電源側の端子部２にも、負荷側の端子部２にも取付けることができる。   Further, the terminal cover body 3 is symmetrical with respect to the center line AA shown in FIG. 5, and the hanging pieces 10 and 10 are also arranged at symmetrical positions in the longitudinal direction of the switch 1. In other words, the drooping pieces 10 and 10 and the attachment portion 11 at the tip thereof are formed at symmetrical positions with the side surface portion 6 in between. For this reason, using the pair of left and right mounting portions 11, 11 on one side in the longitudinal direction of the switch 1, as shown in FIG. 3 or FIG. 4, the terminal portion 2 on the power source side is also connected to the terminal portion 2 on the load side. Can also be installed.

図６、図７に示すように、中央面部９の両側（開閉器１の長手方向の両側）には、ガイド部１４が形成されている。ガイド部１４は端子カバー本体３を端子部２に取付けるときに端子部２の極間隔壁８に当接して端子カバー本体３の姿勢を安定させ、取付けを容易にする役割を持つ。   As shown in FIGS. 6 and 7, guide portions 14 are formed on both sides of the central surface portion 9 (both sides in the longitudinal direction of the switch 1). When the terminal cover body 3 is attached to the terminal part 2, the guide part 14 abuts against the pole interval wall 8 of the terminal part 2 to stabilize the posture of the terminal cover body 3 and facilitate the attachment.

このように構成された本発明の端子カバーは、開閉器１の端子部２に上方から差し込むようにして取付けられるものであり、図７に示すように垂下片１０の取付部１１が上側極の隔壁１２及び極間隔壁８に形成された凹部１３に嵌合され、安定に保持される。ガイド部１４は極間隔壁８の凹部１３に対して反対側の側面に沿った状態で、端子カバーをガイドする。   The terminal cover of the present invention configured as described above is attached to the terminal portion 2 of the switch 1 so as to be inserted from above, and the attachment portion 11 of the hanging piece 10 has an upper pole as shown in FIG. It fits in the recessed part 13 formed in the partition 12 and the pole space | interval wall 8, and is hold | maintained stably. The guide portion 14 guides the terminal cover in a state along the side surface opposite to the concave portion 13 of the pole interval wall 8.

取付完了状態においては、側面部６が端子部２の上側極の側面をカバーし、他方の側面部７は端子部２の下側極の側面をカバーする。しかも端子カバー本体３の上面部５やその左右端縁から垂直下方に垂下する側面部６は端子部の端面４よりも開閉器１の長手方向に大きく突出しているため、端子部２への接触が防止され安全性に優れる。また、中央面部９が、端子部２の極間隔壁８の開閉器１の長手方向端部に形成されているので、端子部間で導電部が短絡するのを防ぐことができる。   In the attached state, the side surface portion 6 covers the side surface of the upper pole of the terminal portion 2, and the other side surface portion 7 covers the side surface of the lower side pole of the terminal portion 2. In addition, the upper surface portion 5 of the terminal cover main body 3 and the side surface portion 6 that hangs vertically downward from the left and right edges of the terminal cover body 3 protrude larger in the longitudinal direction of the switch 1 than the end surface 4 of the terminal portion. Is prevented and excellent in safety. Moreover, since the center surface part 9 is formed in the longitudinal direction edge part of the switch 1 of the pole space | interval wall 8 of the terminal part 2, it can prevent that a conductive part short-circuits between terminal parts.

しかも本発明の端子カバーは前記した中心線Ａ−Ａに関して対称形状であり、両側に取付部１１を形成したものであるから、端子部２が段違い構造である場合にも、平行移動させることによって電源側の端子部２と負荷側の端子部２の両方に取付けが可能となる。このため部品の共通化を図ることができる。   Moreover, since the terminal cover of the present invention has a symmetrical shape with respect to the above-described center line A-A and has the mounting portions 11 formed on both sides, even if the terminal portion 2 has a stepped structure, It can be attached to both the power supply side terminal portion 2 and the load side terminal portion 2. For this reason, the parts can be shared.

上記した実施形態では側面部６を上側極の隔壁１２、側面部７を下側極の隔壁１５と同一平面上に位置させたが、同一平面上に位置させなくてもよい。   In the above-described embodiment, the side surface portion 6 is positioned on the same plane as the upper pole partition wall 12 and the side surface portion 7 is positioned on the same plane as the lower pole partition wall 15.

１ 開閉器
２ 端子部
３ 端子カバー本体
４ 端面
５ 上面部
６ 側面部
７ 側面部
８ 極間隔壁
９ 中央面部
１０ 垂下片
１１ 取付部
１２ 上側極の隔壁
１３ 凹部
１４ ガイド部
１５ 下側極の隔壁
１６ 圧着端子 DESCRIPTION OF SYMBOLS 1 Switch 2 Terminal part 3 Terminal cover main body 4 End surface 5 Upper surface part 6 Side surface part 7 Side surface part 8 Pole space | interval wall 9 Center surface part 10 Hanging piece 11 Mounting part 12 Bulkhead of upper pole 13 Recessed part 14 Guide part 15 Bulkhead of lower pole 16 Crimp terminal

Claims (3)

異極間で高さが異なり、電源側と負荷側が極毎に同じ高さとなる段差構造の電源側と負荷側の各端子部を被覆する開閉器の端子カバーであって、
端子カバー本体が開閉器に取付けたとき開閉器よりも開閉器の長手方向に突出する長さを備え、端子カバー本体の長さ方向の中心の両側に、開閉器への取付部をそれぞれ設けたことを特徴とする開閉器の端子カバー。 It is a terminal cover of a switch that covers each terminal part on the power source side and the load side of the step structure in which the height differs between different poles, and the power source side and the load side are the same height for each pole,
When the terminal cover body is attached to the switch, it has a length that protrudes in the longitudinal direction of the switch rather than the switch, and mounting parts to the switch are provided on both sides of the center of the terminal cover body in the length direction. A terminal cover for a switch. 端子カバー本体は、開閉器の端子部の左右を覆う側面部を備え、前記取付部は側面部を挟んで対称位置に形成されたことを特徴とする請求項１に記載の開閉器の端子カバー。   2. The terminal cover for a switch according to claim 1, wherein the terminal cover main body includes side portions covering right and left of the terminal portion of the switch, and the attachment portion is formed at a symmetrical position with the side portion interposed therebetween. . 端子カバー本体は、開閉器の端子部の左右を覆う側面部を備え、開閉器の端子間に形成された隔壁に当接させるガイド部を前記側面部間に形成したものである請求項１または請求項２に記載の開閉器の端子カバー。   The terminal cover main body includes a side surface portion that covers right and left of the terminal portion of the switch, and a guide portion that is in contact with a partition formed between the terminals of the switch is formed between the side surface portions. The terminal cover of the switch according to claim 2.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11354003A (en) * 1998-06-05 1999-12-24 Matsushita Electric Works Ltd Circuit breaker
JP2009266480A (en) * 2008-04-23 2009-11-12 Fuji Electric Fa Components & Systems Co Ltd Terminal cover of circuit breaker

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11354003A (en) * 1998-06-05 1999-12-24 Matsushita Electric Works Ltd Circuit breaker
JP2009266480A (en) * 2008-04-23 2009-11-12 Fuji Electric Fa Components & Systems Co Ltd Terminal cover of circuit breaker

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