JPS61126779A - Terminal unit - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 【技術分野１ 本発明は、電磁接触器、リレー、ブレーカなどに用いら
れる電線接続用の端子装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field 1] The present invention relates to a terminal device for connecting electric wires used in electromagnetic contactors, relays, breakers, etc.

［背景技術ｌ 従来、電磁接触器、リレー、ブレーカなどに用いられる
電＃ｌ接続用の端子装置は、第４図に示すように、ねし
孔１龜が穿設された端子板１に押さえ板２および固定ね
じ３を用いて電線４を接続するようになっていた。とこ
ろで、このような従来例においで、丸孔５ａを有する圧
着端子５が取着された電線４を接続する場合、端子板１
のねじ孔１ａに蝶着されている固定ねじ３を一旦取り外
し、押さえ板２が装着された固定ねじ３を圧着端子５の
丸孔５ａに挿通し、固定ねじ３を端子板１に再螺着する
ようになっていたが、固定ねじ３の取り外し作業がいる
上、固定ねじ３を所定位置に保持して螺着する必要があ
り、電線４の接続作業が面倒になるという問題がありな
。[Background technology l Conventionally, a terminal device for connecting a power line used in a magnetic contactor, a relay, a breaker, etc. is mounted on a terminal plate 1 having one threaded hole, as shown in Fig. 4. Electric wires 4 were connected using plates 2 and fixing screws 3. By the way, in such a conventional example, when connecting the electric wire 4 to which the crimp terminal 5 having the round hole 5a is attached, the terminal plate 1
Remove the fixing screw 3 hinged to the screw hole 1a, insert the fixing screw 3 with the presser plate 2 attached into the round hole 5a of the crimp terminal 5, and screw the fixing screw 3 into the terminal board 1 again. However, it is necessary to remove the fixing screw 3, and it is also necessary to hold the fixing screw 3 in a predetermined position and screw it in, which makes the work of connecting the electric wire 4 troublesome.

［発明の目的１ 本発明は上記の点に霊みて為されたものであり、その目
的とするところは、丸孔を有する圧着端子が取着された
電線の接続作業が容易にできる端子装置を提供すること
にある。[Objective of the Invention 1 The present invention has been made in view of the above points, and its object is to provide a terminal device that can easily connect electric wires to which crimp terminals having round holes are attached. It is about providing.

［発明の開示ｌ （実施例） 第１図乃至第３図は本発明を電磁接触器に適用した一実
施例を示すものであり、電磁接触器はＥ字型の固定鉄芯
１０と、固定鉄芯１０の中央片１０ａに巻装された励磁
コイル１１と、上下方向に移動自在で復帰ばね（図示せ
ず）にて上方に付勢されたＥ字型の可動鉄芯１２と、可
動鉄芯１２の上部に取着された可動枠１３と、可動枠１
３の上端部に取着され先端にそれぞれ可Ｓ接、α１５ａ
、１５ｂが設けられた可動接点板１４ｍ、１４ｂと、ｌ
１Ｓｉ定撥、α１７墨、１７ｂが設けられた固定端子板
１６ｍ、１６ｂと、可動接点１４ａ、１４ｂおよび固定
接点１６ａ、１６ｂにて形成されるＮ　Ｏ後ＩＦ、−１
８＆。[Disclosure of the Invention 1 (Example) Figures 1 to 3 show an example in which the present invention is applied to an electromagnetic contactor. An excitation coil 11 wound around the central piece 10a of the iron core 10, an E-shaped movable iron core 12 that is vertically movable and biased upward by a return spring (not shown), and a movable iron A movable frame 13 attached to the upper part of the core 12 and a movable frame 1
Attached to the upper end of 3, each tip can be S-contacted, α15a
, 15b, movable contact plates 14m, 14b, and l
IF after NO formed by fixed terminal plates 16m and 16b provided with 1Si constant repulsion, α17 ink and 17b, movable contacts 14a and 14b and fixed contacts 16a and 16b, -1
8&.

ＮＣ４’１点１８ｂに接点圧を発生させるフィルばね１
９と、ボディ２０ａおよびカバー２０ｂよりなるハウジ
ング２０とで構成され、コイル端子１１ａに励磁電圧が
印加されると、可動鉄芯１２が復帰ばねの弾発力に抗し
て固定鉄芯１１＠引され、ＮＯ接５σ１８ａがオンする
とともに、ＮＣ接点１８ｂがオフするようになっている
。ところで、ハウジング２０の両ＲＲには本発明に係る
端子装置が設けられており、この端子装置は、ハウジン
グ２０の端子部に設けられた上記固定端子板１６ａ１１
６ｂと、固定端子板１６ａ、１６ｂに穿設されたねじ孔
１ａに蝶着される磁性体よりなる固定ねじ３と、固定ね
じ３に挿着される押さえ板２と、固定端子板１６ａ、１
６ｂのねじ孔１ａの上方に配設され固定ねじ３を保持す
る曲状の永久磁石２１を具備した感電防止用の端子カバ
ー２２とで形成され、永久磁石２１に固定ねじ３の頭部
が吸着保持されたときに固定ねじ３のねじ部先端と固定
端子板１６ｍ、１６ｂとの間に適当な間隙Ｄ（圧着端子
５の厚さよりも若干大きい間隙）が形成されるように固
定ねじ３の長さおよび永久磁′Ｂ２１の配設位置が設定
されている。なお、実施例にあっては、固定ねじ３のｉ
ｉ１部に上面が平坦面となった７ランノ８１１Ｉ３ａを
突設し、この７ランツｌｌｉ　３　ｍの上面に永久磁石
２１の下面を＠接させることにより固定ねじ３を安定に
保持するようになっているが、実施例のような７ランジ
Ｒ３ａを設けずに固定ねじ３の頭部上面の一部あるいは
全部を平坦面とじても良いことは言うまでもない、また
端子カバー２２の両ａＳには、ハウジング２０の端子部
の両側壁に形成された〃イド溝２３に摺瞥自在に係合さ
れろ突条２４が突設されており、端子カバー２２は水平
方向（矢印Ｘ）にスライドさせて着脱されるようになっ
ており、端子カバー２２の先端部にはカバー２０ｂに突
設された突壁２５に係合する抜は止め用の係合爪２６が
設けられている。Fill spring 1 that generates contact pressure at NC4'1 point 18b
9 and a housing 20 consisting of a body 20a and a cover 20b, and when an excitation voltage is applied to the coil terminal 11a, the movable iron core 12 resists the elastic force of the return spring and pulls the fixed iron core 11@ As a result, the NO contact 5σ18a is turned on and the NC contact 18b is turned off. By the way, both RRs of the housing 20 are provided with a terminal device according to the present invention, and this terminal device is connected to the fixed terminal plate 16a11 provided in the terminal portion of the housing 20.
6b, a fixing screw 3 made of a magnetic material that is hinged to the screw hole 1a drilled in the fixed terminal plates 16a, 16b, a holding plate 2 inserted into the fixing screw 3, and a fixed terminal plate 16a, 1.
A terminal cover 22 for preventing electric shock is provided with a curved permanent magnet 21 disposed above the screw hole 1a of 6b and holding the fixing screw 3, and the head of the fixing screw 3 is attracted to the permanent magnet 21. The length of the fixing screw 3 is set so that an appropriate gap D (a gap slightly larger than the thickness of the crimp terminal 5) is formed between the threaded end of the fixing screw 3 and the fixed terminal plates 16m and 16b when the fixing screw 3 is held. The position of the permanent magnet 'B21 is set. In addition, in the embodiment, i of the fixing screw 3
A 7-run 811I3a with a flat upper surface is provided protruding from the i1 part, and the lower surface of the permanent magnet 21 is brought into contact with the upper surface of the 7-run 811I3a to stably hold the fixing screw 3. However, it goes without saying that a part or all of the upper surface of the head of the fixing screw 3 may be closed to a flat surface without providing the 7 langes R3a as in the embodiment. A protrusion 24 is slidably engaged with an id groove 23 formed on both side walls of the terminal portion of 20, and the terminal cover 22 is attached or detached by sliding in the horizontal direction (arrow X). An engaging pawl 26 is provided at the tip of the terminal cover 22 to prevent the terminal cover 22 from being pulled out, and which engages with a projecting wall 25 protruding from the cover 20b.

以下、実施例の動作について説明する。固定ねじ３は第
１図に示すように端子カバー２２に設けられた永久磁石
２１に吸着され、固定端子板１６ａ１１６ｂのねじ孔１
ａの上方に吊り下げられた状態で保持されている。この
状態においで、固定ねじ３のねじ部の先端と固定端子板
１６ａ、１６ｂとの間には適当な間隙りが形成されてお
り、圧’１１子５が取着された電線４を接続する場合に
は、まず、この間ＮＤを介して圧着端子５が挿入される
。The operation of the embodiment will be described below. The fixing screw 3 is attracted to the permanent magnet 21 provided on the terminal cover 22 as shown in FIG.
It is held suspended above a. In this state, an appropriate gap is formed between the tip of the threaded portion of the fixing screw 3 and the fixed terminal plates 16a, 16b, and the electric wire 4 to which the insulator 5 is attached is connected. In this case, the crimp terminal 5 is first inserted through the ND during this time.

次に、圧着端子５の丸孔５ａを固定端子板１６ａ、１６
ｂのねじ孔１ａに合致させ、永久磁石２１の内孔２１ａ
を通して挿入されるドライバーの先端にで固定ねじ３を
下方に押すと、固定ねじ３は永久磁石２１による保持が
強制的に解除されて落下し、そのねじ部の先端が圧着端
子５の丸孔５ａを通して固定端子板１６ａ、１６ｂのね
じ孔１ａの上端縁に当接する。この状態でドライバーを
回献させれば固定ねじ３および押さえ板２によって圧着
端子５が固定端子板１６ａ、１６ｂに蝶着されるように
なっている。したがって、従来例のように、電線４を接
続するに先立って固定ねじ３を取り外す必要がなく、し
かも、電４Ｉ４を接続固定する場合において固定ねと３
を所定位置に保持する必要もなく、電＠４のａｍ作業が
極めて容易にでさるようになっている。なお、電１ｉ４
を取り外す場合には、磁化されたドライバーを用いて固
定ねじ３を取り外し、ドライバーの先端に吸着されてい
る固定ねじ３をそのままの位置で引軽上げて永久磁石２
１に吸着保持させ、固定ねじ３のねじ部の先端と固定端
子板１６ａ、１６ｂとの間に形成されるＩＪｌ隙りを通
して圧着端子５を引き抜けば良（、電線４を再度接続す
る場合には前述した方法で接続できることになる。Next, the round holes 5a of the crimp terminals 5 are inserted into the fixed terminal plates 16a, 16.
The inner hole 21a of the permanent magnet 21 is aligned with the screw hole 1a of the permanent magnet 21.
When the fixing screw 3 is pushed downward with the tip of a screwdriver inserted through the screw, the fixing screw 3 is forcibly released from being held by the permanent magnet 21 and falls, and the tip of the screw part is inserted into the round hole 5a of the crimp terminal 5. through which it abuts against the upper edge of the screw hole 1a of the fixed terminal plates 16a, 16b. When the driver is rotated in this state, the crimp terminal 5 is hinged to the fixed terminal plates 16a and 16b by the fixing screw 3 and the holding plate 2. Therefore, unlike the conventional example, there is no need to remove the fixing screw 3 before connecting the electric wire 4, and moreover, when connecting and fixing the electric wire 4I4, the fixing screw 3 does not need to be removed.
There is no need to hold it in place, making it extremely easy to perform the am operation of the electric @4. In addition, electric 1i4
To remove the permanent magnet 2, use a magnetized screwdriver to remove the fixing screw 3, hold the fixing screw 3 that is attracted to the tip of the screwdriver, and pull up the permanent magnet 2.
1, and pull out the crimp terminal 5 through the IJl gap formed between the tip of the threaded part of the fixing screw 3 and the fixed terminal plates 16a, 16b (when reconnecting the electric wire 4). can be connected using the method described above.

［発明の効果１ 本発明は上述のように、ハウツングの端子部ｉ二配設さ
れた端子板に穿設されたれじ孔に電線接続用の固定ねじ
を螺着してなる端子！［においで、磁性体よりなる固定
ねじを保持する永久磁石を端子板のねじ孔の上方に配設
し、上記永久磁石に固定ねじの頭部が吸着保持されたと
きに固定ねじのねじ部先端と端子板との間に過当な間隙
が形成されるように固定ねじの長さおよび永久磁石の配
設位置を設定したものであり、永久磁石によってねじ部
先端と端子板との間に適当な１１１ＦＩＡが形成される
ように固定ねじが保持されているので、この間隙を介し
て圧着端子を挿入して固定ねじを端子板のねじ孔に蝶着
することができ、丸孔を有する圧着端子が取着された電
線の接続作業が容易にできるという効果がある。[Effects of the Invention 1] As described above, the present invention provides a terminal in which a fixing screw for connecting an electric wire is screwed into a threaded hole drilled in a terminal plate provided in the terminal portion i2 of the Houtung! [In this case, a permanent magnet that holds the fixing screw made of a magnetic material is arranged above the screw hole of the terminal board, and when the head of the fixing screw is attracted and held by the permanent magnet, the tip of the threaded part of the fixing screw is The length of the fixing screw and the placement position of the permanent magnet are set so that an appropriate gap is formed between the tip of the thread and the terminal plate. Since the fixing screw is held so that 111FIA is formed, the crimp terminal can be inserted through this gap and the fixing screw can be hinged to the screw hole of the terminal board. This has the effect of making it easier to connect the attached electric wires.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明一実施例の断面図、第２図（ａ）（ｂ）
は同上の要部上面図および下面図、第３図は同上の要部
分解斜視図、第４図は従来例の分解斜視図である。 １．１６ａ、１６ｂは端子板、２は押さえ板、３は固定
ねじ、４は電線、５は圧着端子、２０はハウツング、２
１は永久磁石である。 代理人　弁理士　石　１）長　七 第２図 （ｂ） 第３図Figure 1 is a sectional view of one embodiment of the present invention, Figures 2 (a) and (b)
3 is an exploded perspective view of the essential parts of the same as the above, and FIG. 4 is an exploded perspective view of the conventional example. 1.16a, 16b are terminal boards, 2 is a holding plate, 3 is a fixing screw, 4 is an electric wire, 5 is a crimp terminal, 20 is a housing, 2
1 is a permanent magnet. Agent Patent Attorney Ishi 1) Chief 7 Figure 2 (b) Figure 3

Claims (1)

【特許請求の範囲】[Claims] （１）ハウジングの端子部に配設された端子板に穿設さ
れたねじ孔に電線接続用の固定ねじを螺着してなる端子
装置においで、磁性体よりなる固定ねじを保持する永久
磁石を端子板のねじ孔の上方に配設し、上記永久磁石に
固定ねじの頭部が吸着保持されたときに固定ねじのねじ
部先端と端子板との間に適当な間隙が形成されるように
固定ねじの長さおよび永久磁石の配設位置を設定して成
る端子装置。(1) In a terminal device in which a fixing screw for connecting electric wires is screwed into a screw hole drilled in a terminal plate provided in a terminal section of a housing, a permanent magnet holds the fixing screw made of a magnetic material. is arranged above the screw hole of the terminal board, so that when the head of the fixing screw is attracted and held by the permanent magnet, an appropriate gap is formed between the threaded end of the fixing screw and the terminal plate. A terminal device consisting of the length of the fixing screw and the placement position of the permanent magnet.