JPS6233256Y2

JPS6233256Y2 -

Info

Publication number: JPS6233256Y2
Application number: JP7366881U
Authority: JP
Priority date: 1981-05-21
Filing date: 1981-05-21
Publication date: 1987-08-25
Also published as: JPS57185189U

Description

【考案の詳細な説明】本考案は、本質安全防爆用のバリアユニツト装
置に関するものである。[Detailed Description of the Invention] The present invention relates to an intrinsically safe explosion-proof barrier unit device.

従来より一般に使用されている本質安全防爆用
（以下「本質安全防爆」を「本安」と称する。）の
バリアユニツト装置としては、たとえば、第１図
に示すごときものが使用されている。 As an intrinsically safe explosion-proof (hereinafter referred to as "intrinsically safe") barrier unit device that has been commonly used, for example, the one shown in FIG. 1 has been used.

第１図において、Ａは正面図、Ｂは平面図、ロ
は側面図である。 In FIG. 1, A is a front view, B is a plan view, and B is a side view.

図において、１はバリアユニツトで、バリア本
体１１と端子台１２とよりなり両者は後述する如
く、コネクター接続され、第１図Ｃに示す如く、
分離できる。１１１はバリア本体より突出したア
ースコネクターピンである。１２１はコネクター
ピン１１１に対応して端子台１２に設けられたコ
ネクターソケツトである。１２２，１２３はそれ
れぞれ端子台１２に設けられた非本安側アース端
子と本安側アース端子である。１２４は端子台２
４の裏面側に埋め込まれたアース板で、コネクタ
ーソケツト１２１とアース端子１２２，１２３と
が電気的に接続されている。２は長板状の接地ブ
スバーで、図に示す如く、所要個のバリアユニツ
ト１ａ，１ｂ，１Ｃ…が連続して一体的に取付け
られる。Ａは、たとえば、計装用の取付けパネル
である。 In the figure, 1 is a barrier unit, which consists of a barrier body 11 and a terminal block 12, both of which are connected with a connector as described later, and as shown in Figure 1C.
Can be separated. 111 is an earth connector pin protruding from the barrier body. 121 is a connector socket provided on the terminal block 12 corresponding to the connector pin 111. Reference numerals 122 and 123 denote a non-intrinsically safe ground terminal and an intrinsically safe ground terminal provided on the terminal block 12, respectively. 124 is terminal block 2
Connector socket 121 and ground terminals 122, 123 are electrically connected by a ground plate embedded in the back side of 4. Reference numeral 2 denotes a long plate-shaped grounding busbar, on which a required number of barrier units 1a, 1b, 1C, . . . are successively and integrally attached, as shown in the figure. A is, for example, a mounting panel for instrumentation.

本装置は、実際に使用される場合には、第２図
に示す如く、計装現場において、バリアユニツト
１の必要個数に応じて、数本の接地ブスバー２を
準備し、これにバリアユニツト１を取付けた後、
パネルＡに取付け、次に、接地ブスバー２相互間
をリードＢにより接地配線する。 When this device is actually used, as shown in Fig. 2, several ground bus bars 2 are prepared at the instrumentation site according to the required number of barrier units 1, and barrier units After installing the
Attach it to panel A, and then connect the grounding busbars 2 to each other using leads B.

このようなものにおいては、接地ブスバー２を
数本に分けることはできるとしても、バリアユニ
ツト１の必要数により接地ブスバー２の長さが種
種異なる可能性があり、装置の構成上不便であ
る。 In such a device, even if the ground bus bar 2 can be divided into several pieces, the length of the ground bus bar 2 may vary depending on the required number of barrier units 1, which is inconvenient in terms of the structure of the device.

本考案は、この問題点を解決したものである。 The present invention solves this problem.

本考案の目的は、接地ブスバーの構成が容易
で、所要個のバリアユニツトを容易に配置、組合
せることができる本質安全防爆バリアユニツト装
置を提供するにある。 An object of the present invention is to provide an intrinsically safe explosion-proof barrier unit device in which the construction of the ground bus bar is easy and the required number of barrier units can be easily arranged and combined.

第３図は、本考案の一実施例の構成説明図で、
Ａは正面図、Ｂは平面図である。 FIG. 3 is an explanatory diagram of the configuration of an embodiment of the present invention.
A is a front view, and B is a plan view.

図において、第１図と同一記号は同一機能を表
わす。以下、第１図と相違部分のみ説明する。 In the figure, the same symbols as in FIG. 1 represent the same functions. Hereinafter, only the differences from FIG. 1 will be explained.

２１は第４図に示す如く、第１面部２１１と、
第１面部２１１と段差を有し階段状をなす第２面
部２１２とを具える第１アース板である。第１面
部２１１は第１バリアユニツト１ａの端子台１２
ａの接地ブスバーが取付けられる取付け面に固定
されている。２２は第１アース板２１と同一形状
をなす第２アース板である。第２アース板２２の
第１面部２２１は、第２バリアユニツト１ｂの端
子台１２ｂの接地ブスバーの取付けられる面に固
定され、第２面部２２２は第１アース板の第１面
部２１１を介して端子台１２ａに固定されてい
る。２３は第２アース板２２と同一形状をなす第
３アース板である。第３アース板２３の第１面部
２３１は、第３バリアユニツト１ｃの端子台１２
ｃの接地ブスバーの取付け面に固定され、第２面
部２３２は第２アース板の第１面部２２１を介し
て端子台１２ｂに固定されている。 21, as shown in FIG. 4, a first surface portion 211;
This is a first grounding plate that includes a first surface portion 211 and a second surface portion 212 having a stepped shape. The first surface portion 211 is connected to the terminal block 12 of the first barrier unit 1a.
It is fixed to the mounting surface to which the grounding bus bar a is attached. A second earth plate 22 has the same shape as the first earth plate 21 . The first surface portion 221 of the second ground plate 22 is fixed to the surface on which the ground bus bar of the terminal block 12b of the second barrier unit 1b is attached, and the second surface portion 222 is connected to the terminal via the first surface portion 211 of the first ground plate. It is fixed to the stand 12a. 23 is a third earth plate having the same shape as the second earth plate 22. The first surface portion 231 of the third ground plate 23 is connected to the terminal block 12 of the third barrier unit 1c.
The second surface portion 232 is fixed to the terminal block 12b via the first surface portion 221 of the second earth plate.

このような構成のものにおいては、接地ブスバ
ー２′が第１アース板２１、第２アース板２２と
第３アース板２３とで構成できるので、バリアユ
ニツト１の個数を増やす場合には、アース板を追
加すればよく、バリアユニツト１の個数に応じ
て、接地ブスバー２′の長さを自由に調節できる
ものが得られる。 In such a structure, the grounding busbar 2' can be composed of the first grounding plate 21, the second grounding plate 22, and the third grounding plate 23. Therefore, when increasing the number of barrier units 1, the grounding busbar 2' , and the length of the grounding bus bar 2' can be freely adjusted according to the number of barrier units 1.

以上説明したように、本考案によれば、接地ブ
スバーの構成が容易で、所要個のバリアユニツト
を容易に配置・組合せることができる本質安全防
爆バリアユニツト装置を実現することができる。 As explained above, according to the present invention, it is possible to realize an intrinsically safe explosion-proof barrier unit device in which the configuration of the ground busbar is easy and the required number of barrier units can be easily arranged and combined.

[Brief explanation of the drawing]

第１図は従来より一般に使用されている本質安
全防爆用のバリアユニツト装置の要部構成説明図
で、Ａは正面図、Ｂは平面図、Ｃは側面図、第２
図は第１図の全体的な構成説明図、第３図は本考
案の一実施例の要部構成説明図で、Ａは正面図、
Ｂは平面図、第４図は第３図の部品説明図で、Ａ
は正面図、Ｂは平面図である。１（１ａ，１ｂ，１ｃ…）……バリアユニツ
ト、１１……バリア本体、１２……端子台、２′
……接地ブスバー、２１……第１アース板、２１
１，２２１，２３１……第１面部、２１２，２２
２，２３２……第２面部、２２……第１アース
板、２３……第２アース板。 Figure 1 is an explanatory diagram of the main part configuration of an intrinsically safe explosion-proof barrier unit device that has been commonly used in the past, where A is a front view, B is a top view, C is a side view, and
The figure is an explanatory diagram of the overall configuration of FIG. 1, FIG. 3 is an explanatory diagram of the main part configuration of an embodiment of the present invention, A is a front view,
B is a plan view, FIG. 4 is an explanatory diagram of the parts in FIG. 3, and A is a plan view.
is a front view, and B is a plan view. 1 (1a, 1b, 1c...)... Barrier unit, 11... Barrier body, 12... Terminal block, 2'
...Grounding bus bar, 21...First grounding plate, 21
1,221,231...first surface part, 212,22
2,232...Second surface portion, 22...First earth plate, 23...Second earth plate.

Claims

[Scope of utility model registration request]

An intrinsically safe explosion-proof barrier unit device comprising a plurality of block-shaped intrinsically safe explosion-proof barrier units and a long plate-shaped grounding busbar that is connected to the ground terminal of each of the units and connects the units in a continuous manner. In the first grounding plate, the grounding busbar includes a first surface portion fixed to a mounting surface of the first barrier unit, and a second surface portion having a step shape with respect to the first surface portion. and the first
a first surface portion having the same shape as the ground plate and fixed to the mounting surface of the second barrier unit; and a second surface portion fixed to the mounting surface of the first barrier unit via the first surface portion of the first ground plate. a second grounding plate having a surface portion; a third grounding plate having the same shape as the second grounding plate;
The second
An intrinsically safe explosion-proof barrier unit device comprising: a third grounding plate having a second surface fixed to a mounting surface of the barrier unit; and a required number of similar grounding plates in order.