JPH0773928A - Automatic plug-in connecting device - Google Patents
Automatic plug-in connecting deviceInfo
- Publication number
- JPH0773928A JPH0773928A JP21981193A JP21981193A JPH0773928A JP H0773928 A JPH0773928 A JP H0773928A JP 21981193 A JP21981193 A JP 21981193A JP 21981193 A JP21981193 A JP 21981193A JP H0773928 A JPH0773928 A JP H0773928A
- Authority
- JP
- Japan
- Prior art keywords
- supply
- clean gas
- receiving
- contact
- side connecting
- 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.)
- Granted
Links
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えば可燃性、引火性
などの危険なガスが含まれるために爆発性雰囲気となる
危険場所でも使用可能な電源供給用の自動差込み接続装
置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic plug-in connection device for supplying power, which can be used even in a dangerous place where an explosive atmosphere is created due to the inclusion of dangerous gases such as flammability and flammability. .
【０００２】[0002]
【従来の技術】一般産業界において、自動化・省人化な
どが進むにつれて、電源供給ラインの自動接続・切り離
しの要求が高まり、自動脱着式接続装置が種々開発・実
用化されてきているが、前記危険場所で使用できる防爆
構造で自動脱着式の差込み接続装置はまだ開発途上にあ
る。また、上記爆発性雰囲気での電源供給ラインの接続
用として、従来、耐圧防爆構造のコンセントが市販され
ているが、このコンセントは、高価で重量が重い上に防
塵キャップの操作、プラグとコンセントの芯合わせ、ユ
ニオンによる固定などの操作を人間が行うことを前提と
したもので、自動接続したり切り離したりする装置とし
て利用できるものではなかった。2. Description of the Related Art In the general industry, as automation and labor saving progress, the demand for automatic connection / disconnection of power supply lines has increased, and various automatic removable connection devices have been developed and put into practical use. An explosion-proof, self-detaching plug-in connection device that can be used in the hazardous area is still under development. Further, for connection of the power supply line in the above explosive atmosphere, an outlet having a pressure-proof and explosion-proof structure has been commercially available, but this outlet is expensive and heavy, and the operation of the dustproof cap, the plug and the outlet It was premised on human beings performing operations such as centering and fixing with a union, and could not be used as a device for automatically connecting or disconnecting.
【０００３】[0003]
【発明が解決しようとする課題】ところで、上述した爆
発性雰囲気で使用される自動差込み接続装置に要求され
る条件として最も重要なことは、上記自動差込み接続装
置が、爆発の原因となる着火源・爆発源にならないこと
である。また、このような条件を満たす構造は、「工場
電気設備防爆指針」（労働省産業安全研究所）によっ
て、本質安全防爆構造、耐圧防爆構造、内圧防爆構造、
安全増防爆構造、油入防爆構造、特殊防爆構造に分類さ
れ、各々についての構造・性能に関して規定されてい
る。これらのうち、内圧防爆構造は、電気機器容器内に
清浄な空気または不活性ガスなどの保護気体を圧入し
て、内圧を保持し、外部に存在する爆発性ガスの侵入を
防止して、危険雰囲気との実質的な遮断隔離をするよう
にしたものであり、内圧を保持する方法として、通風
式、封入式などの方法がある。本発明の目的は、軽量で
自動的に電気供給ラインを接続したり切り離したりする
ことが可能で、上述した工場電気設備防爆指針の封入式
内圧防爆構造を満足する自動差込み接続装置を提供しよ
うとするものである。By the way, the most important condition required for the automatic plug-in connection device used in the above explosive atmosphere is that the automatic plug-in connection device causes ignition that causes an explosion. It is not to be a source of explosion. In addition, the structure that satisfies these conditions is the intrinsic safety explosion-proof structure, pressure-proof explosion-proof structure, internal pressure explosion-proof structure,
It is classified into the safety-enhanced explosion-proof structure, oil-filled explosion-proof structure, and special explosion-proof structure, and the structure and performance of each are specified. Among them, the internal pressure explosion-proof structure presses clean air or a protective gas such as an inert gas into the electric equipment container to maintain the internal pressure and prevent the explosive gas existing outside from entering. It is designed so as to be substantially isolated from the atmosphere, and as a method for maintaining the internal pressure, there are methods such as a ventilation type and a sealed type. An object of the present invention is to provide an automatic plug-in connection device that is lightweight and capable of automatically connecting or disconnecting an electric supply line, and that satisfies the above-mentioned sealed internal pressure explosion-proof structure of the factory electrical equipment explosion-proof pointer. To do.
【０００４】[0004]
【課題を解決するための手段】本発明の自動差込み接続
装置は、上述の目的を達成するために、１端に通気口を
兼ねた電気接続用ソケットコンタクトが埋設され、他端
にこのソケットコンタクトと接続する電気配線を取り出
す取出口と非爆発性の清浄気体を導入する導入口とが形
成された円筒からなる供給側接続部と、一端に上記供給
側接続部を受容する受容部が設けられ、この受容部の後
方に上記供給側接続部のソケットコンタクトと対をなす
ピンコンタクトが設けられ、このピンコンタクトの取り
付け部に通気口が設けられ、他端にこのピンコンタクト
と接続する電気配線を取り出す取出口と上記供給側接続
部より供給された非爆発性の清浄気体を排出する排気口
とが形成された外筒からなる受け側接続部と、上記供給
側接続部と上記受け側接続部の受容部とを嵌合させて、
上記ソケットコンタクトと上記ピンコンタクトとを接続
させたり分断せしめる接合分断手段と、上記ソケットコ
ンタクトと上記ピンコンタクトとの接合完了時に、上記
排気口を閉鎖して上記受容部を閉鎖空間とするための閉
鎖手段と、上記供給側接続部又は上記受け側接続部のい
ずれか１方に設けられたガイドピンと、このガイドピン
が設けられていない何れか他方に形成されたピン受け口
とからなり、上記供給側接続部と上記受け側接続部の受
容部との嵌合操作を円滑化せしめる嵌合ガイドと、上記
供給側接続部と上記受け側接続部とを結合して上記ソケ
ットコンタクトと上記ピンコンタクトとを接続・分断す
る際、これらコンタクト近傍の雰囲気を清浄気体雰囲気
とする清浄気体供給手段と、上記供給側接続部と上記受
け側接続部の嵌合と結合を確認する嵌合・結合検出装置
と、上記供給側接続部内への清浄気体供給の有無を感知
する清浄気体供給検出装置と、上記結合検出装置と上記
清浄気体供給検出装置とに連動して電源からの電気供給
を制御する電気供給制御手段とからなる構成を採用した
ことを特徴とする。In order to achieve the above-mentioned object, the automatic plug-in / connecting device of the present invention has a socket contact for electrical connection, which doubles as a ventilation hole, is buried in one end and the socket contact is in the other end. A supply-side connecting portion formed of a cylinder formed with an outlet for taking out an electric wire connected to the inlet and an inlet for introducing a non-explosive clean gas, and a receiving portion for receiving the supply-side connecting portion at one end are provided. , A pin contact that is paired with the socket contact of the supply-side connection portion is provided behind the receiving portion, a ventilation port is provided at the attachment portion of the pin contact, and an electrical wiring that connects to the pin contact is provided at the other end. A receiving-side connecting part formed of an outer cylinder having an outlet for taking out and an exhaust port for discharging the non-explosive clean gas supplied from the supplying-side connecting part, the supplying-side connecting part and the receiving part. By fitting the receiving portion of the side connecting portion,
A joint cutting means for connecting or disconnecting the socket contact and the pin contact, and a closure for closing the exhaust port to make the receiving part a closed space when the joining of the socket contact and the pin contact is completed. Means, a guide pin provided on either one of the supply side connecting portion or the receiving side connecting portion, and a pin receiving port formed on the other side where the guide pin is not provided. A fitting guide for facilitating a fitting operation between the connecting portion and the receiving portion of the receiving side connecting portion, and the socket contact and the pin contact by connecting the supply side connecting portion and the receiving side connecting portion. When connecting / disconnecting, the clean gas supply means for making the atmosphere near these contacts a clean gas atmosphere, and the fitting of the supply side connecting part and the receiving side connecting part A fitting / coupling detection device that confirms the coupling, a clean gas supply detection device that senses the presence or absence of clean gas supply into the supply side connection part, and the coupling detection device and the clean gas supply detection device in conjunction with each other. It is characterized in that a configuration including an electricity supply control means for controlling electricity supply from a power source is adopted.
【０００５】[0005]
【作用】本発明の自動差込み接続装置にあっては、上述
したような構造としたので、供給側接続部と受け側接続
部とを嵌合・結合してソケットコンタクトとピンコンタ
クトとを接続せしめる際、上記円筒に清浄気体を供給
し、かつ、ソケットコンタクトとの通気口を排気口とし
て作用せしめて常にソケットコンタクトの周囲を清浄気
体雰囲気に保つことができる。また、本発明の自動差込
み接続装置にあっては、上記嵌合ガイドを設けたので、
上記供給側接続部と上記受け側接続部とを嵌合する操作
を行う際、このガイドピンがガイドピン受け口に挿入さ
れ、上記円筒と上記外筒部の芯が適性に整合され、嵌脱
操作が円滑、かつ、確実に行われる。さらに、本発明の
自動差込み接続装置にあっては、上記供給側接続部と上
記受け側接続部との嵌合・結合を確認する嵌合・結合検
出装置と、上記円筒内への清浄気体供給の有無を感知す
る清浄気体供給検出装置と、ソケットコンタクトとピン
コンタクトの接合完了時に、上記排気管の出口を閉鎖し
て上記受容部を閉鎖空間とするための閉鎖手段と、上記
嵌合・結合検出装置および上記清浄気体供給検出装置に
連動して、電源からの電気供給を制御する電源供給制御
装置とを具備する構成としたので、上記円筒と上記外筒
との嵌合を完了した段階で、接合分断手段による供給側
接続部の駆動を一旦停止して嵌合を嵌合・結合検出装置
で確認し、受け側接続部内の空間に清浄気体を供給して
この空間が清浄気体雰囲気とされる。しかも、この空間
に清浄気体が供給され続けていることを清浄気体供給検
出装置によって確認しつつ、再度供給側接続部を駆動し
てソケットコンタクトとピンコンタクトを無電圧状態で
挿入接合せしめ、接合が終了した後、電気供給制御手段
により電源供給を開始して接続を完了する。また、コン
タクト接続中も、接合動作終了時にコンタクト周囲の空
間を閉鎖空間とせしめることにより少量の清浄気体の供
給で、接続装置内部を接続装置外部よりも圧力が高い状
態に保持し、コンタクト周囲を清浄気体雰囲気とするこ
とができる。また、接続中も、清浄気体供給検出装置に
より清浄気体の供給が監視される。Since the automatic plug-in / connecting device of the present invention has the above-mentioned structure, the socket contact and the pin contact can be connected by fitting and coupling the supply-side connecting part and the receiving-side connecting part. At this time, the clean gas can be supplied to the cylinder, and the vent hole for the socket contact can act as an exhaust port to keep the surroundings of the socket contact in a clean gas atmosphere at all times. Further, in the automatic insertion connecting device of the present invention, since the fitting guide is provided,
When performing the operation of fitting the supply-side connecting portion and the receiving-side connecting portion, the guide pin is inserted into the guide-pin receiving opening, the core of the cylinder and the outer cylindrical portion are properly aligned, and the fitting / removing operation is performed. Is carried out smoothly and reliably. Further, in the automatic plug-in / connecting device of the present invention, a fitting / coupling detecting device for confirming fitting / coupling between the supply-side connecting part and the receiving-side connecting part, and supply of clean gas into the cylinder. A clean gas supply detecting device for detecting the presence or absence of the presence of a contact, a closing means for closing the outlet of the exhaust pipe to make the receiving part a closed space when the socket contact and the pin contact are completely joined, and the fitting and coupling. Since it is configured to include a power supply control device that controls the power supply from the power source in conjunction with the detection device and the clean gas supply detection device, at the stage where the fitting of the cylinder and the outer cylinder is completed. , The driving of the supply side connection part by the joining and cutting means is temporarily stopped, the fitting is confirmed by the fitting / coupling detection device, and the clean gas is supplied to the space inside the receiving side connection part to make this space a clean gas atmosphere. It Moreover, while confirming that the clean gas is continuously supplied to this space by the clean gas supply detection device, the supply side connecting portion is driven again to insert and join the socket contact and the pin contact in a non-voltage state, and the joining is completed. After the end, the power supply is started by the electric supply control means to complete the connection. Even during contact connection, the space around the contact is closed at the end of the bonding operation to supply a small amount of clean gas, keeping the inside of the connection device at a higher pressure than the outside of the connection device, and It can be a clean gas atmosphere. Also, during the connection, the supply of the clean gas is monitored by the clean gas supply detection device.
【０００６】[0006]
【実施例】以下、本発明の自動差込み接続装置の一実施
例を図面に基づき詳細に説明する。図１は自動差込み接
続装置の側面断面図であり、図２は自動差込み接続装置
の概要を示すブロック図である。この実施例の自動差込
み接続装置は、図２のブロック図に示すように、供給側
接続部Ａ、受け側接続部Ｂ、供給側接続部駆動装置Ｃ、
電源供給制御装置Ｄ、嵌合・結合検出装置Ｅ、清浄気体
供給検出装置Ｆ、電源供給部（図示せず）、清浄気体供
給部（図示せず）から構成されている。上記供給側接続
部Ａは、図１に示すように、一端に通気口を備えたソケ
ットコンタクト２が埋設され、他端に電源ケーブル２０
の取出口５と清浄気体の導入口６とが形成された円筒１
と、この円筒１の外周面に設けられたゴム等の可撓性材
料からなるＯリング４と、ガイドピン受け口３が窄設さ
れてこの円筒１の外側に固定されたフランジ１ａと、こ
のフランジ１ａにばね部材７を介して支持された盲栓８
とから構成されている。上記ソケットコンタクト２は、
図３に示すように、その内部に清浄気体の導入手段とし
て貫通する通気口ｄが設けられたもので、円筒１内に導
入口６を介して清浄気体が供給された際、この通気口ｄ
を介して清浄気体が排気され、これによりソケットコン
タクト２の周囲が常に清浄気体雰囲気に保持されること
になる。また、このソケットコンタクト２の端部には電
源ケーブル２０の一端が接続し、この電源ケーブル２０
の他端は、上記取出口５から供給側接続部Ａの外部に取
り出され電源供給制御装置Ｄに接続している。また、上
記円筒１には、供給側接続部Ａ全体を、後述する受け側
接続部Ｂに向けて直進運動をさせ、これにより供給側接
続部Ａと受け側接続部Ｂとを結合せしめる供給側接続部
駆動装置Ｃ（代表的には空気シリンダ）が接続されてい
る。清浄気体としては、例えば不活性気体である窒素ガ
スや爆発性ガスを含まない計装空気などの非爆発性ガス
とするものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the automatic plug-in / connect device of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a side sectional view of the automatic plug-in connection device, and FIG. 2 is a block diagram showing an outline of the automatic plug-in connection device. As shown in the block diagram of FIG. 2, the automatic plug-in / connecting device of this embodiment has a supply-side connecting portion A, a receiving-side connecting portion B, a supply-side connecting portion driving device C,
It is composed of a power supply control device D, a fitting / coupling detection device E, a clean gas supply detection device F, a power supply unit (not shown), and a clean gas supply unit (not shown). As shown in FIG. 1, the supply-side connection portion A has a socket contact 2 provided with a ventilation hole embedded in one end and a power cable 20 in the other end.
A cylinder 1 in which an outlet 5 and an inlet 6 for clean gas are formed
An O-ring 4 made of a flexible material such as rubber provided on the outer peripheral surface of the cylinder 1, a flange 1a fixed to the outside of the cylinder 1 with a guide pin receiving port 3 narrowed, and this flange. Blind plug 8 supported by spring member 7 on 1a
It consists of and. The socket contact 2 is
As shown in FIG. 3, a ventilation hole d is provided therein as a means for introducing clean gas, and when the clean gas is supplied into the cylinder 1 through the introduction port 6, this ventilation hole d
The clean gas is exhausted via the, so that the periphery of the socket contact 2 is always kept in the clean gas atmosphere. Also, one end of the power cable 20 is connected to the end of the socket contact 2, and the power cable 20
The other end of is connected to the power supply control device D by being taken out of the supply side connecting portion A from the outlet 5. Further, in the cylinder 1, the entire supply-side connecting portion A is linearly moved toward a receiving-side connecting portion B, which will be described later, so that the supplying-side connecting portion A and the receiving-side connecting portion B are coupled to each other. A connection drive unit C (typically an air cylinder) is connected. The clean gas is, for example, a non-explosive gas such as an inert gas such as nitrogen gas or instrumentation air containing no explosive gas.
【０００７】受け側接続部Ｂは、上記円筒１と嵌合する
空洞部である受容部１０が設けられた外筒９と、上記フ
ランジ１ａに対向するように外筒９の嵌合口部の周縁に
形成されたフランジ９ｂと、この受容部１０に設けられ
た上記円筒１のソケットコンタクト２と対をなすピンコ
ンタクト１２と、この受容部１０からピンコンタクト取
付板１３を貫通して受け側接続部背面に設けられた受容
部１０内の気体を排出する排気口１４とから構成されて
いる。上記円筒１と上記外筒９との嵌合時、上記円筒１
の外周に設けられたＯリング４によって受容部１０を外
気から遮断することができる。また、上記排出口１４に
は排気管１５が設けられ、ソケットコンタクト２とピン
コンタクト１２の接合時にこの排気管１５の出口を供給
側接続部Ａの盲栓８が閉鎖して受容部１０を閉鎖空間と
することができる。また、フランジ９ｂには供給側接続
部Ａのガイドピン受け口３と対をなすガイドピン１１が
設けられ、供給側接続部Ａと受け側接続部Ｂとを嵌合す
る際、ガイドピン１１がガイドピン受け口３に挿入さ
れ、円筒１と外筒９との芯が合わされ、嵌脱操作が円
滑、かつ、確実に行われるようになっている。The receiving side connecting portion B has an outer cylinder 9 provided with a receiving portion 10 which is a cavity for fitting with the cylinder 1 and a peripheral edge of a fitting opening portion of the outer cylinder 9 so as to face the flange 1a. A flange 9b formed on the socket, a pin contact 12 that is paired with the socket contact 2 of the cylinder 1 provided on the receiving portion 10, and a receiving side connecting portion that penetrates the pin contact mounting plate 13 from the receiving portion 10. It is composed of an exhaust port 14 for exhausting the gas inside the receiving portion 10 provided on the back surface. When the cylinder 1 and the outer cylinder 9 are fitted, the cylinder 1
The receiving portion 10 can be shielded from the outside air by the O-ring 4 provided on the outer circumference of the. Further, an exhaust pipe 15 is provided at the outlet 14, and when the socket contact 2 and the pin contact 12 are joined, the outlet of the exhaust pipe 15 is closed by the blind plug 8 of the supply side connecting portion A and the receiving portion 10 is closed. It can be a space. Further, the flange 9b is provided with a guide pin 11 paired with the guide pin receiving port 3 of the supply side connecting portion A, and the guide pin 11 guides when the supply side connecting portion A and the receiving side connecting portion B are fitted together. It is inserted into the pin receiving port 3 and the core of the cylinder 1 and the outer cylinder 9 are aligned with each other, so that the fitting / removing operation is performed smoothly and surely.
【０００８】電気供給制御装置Ｄは、電源供給部と上述
した供給側接続部Ａとの間に介設されている装置で、後
述する嵌合・結合検出装置Ｅおよび清浄気体供給検出装
置Ｆからの情報に基づいて電源供給部から供給側接続部
Ａへの電気供給を制御する装置である。また、嵌合・結
合検出装置Ｅは、円筒１の外周に配設されているリミッ
トスイッチにより、円筒１が所定の位置にあることを検
出して嵌合と結合を確認する装置で、この結合確認の信
号を上記電気供給制御装置Ｄに送ることにより、電気供
給制御装置Ｄが供給側接続部Ａへの電気供給を開始する
ようになっている。また、清浄気体供給検出装置Ｆは、
円筒１の内部圧力を検出することにより清浄気体の供給
の有無を監視して、万一清浄気体の圧力が低下した場
合、円筒１の内部圧力低下を感知し、その旨の信号を上
記電気供給制御装置Ｄに送ることにより、電気供給制御
装置Ｄが供給側接続部Ａへの電気供給を遮断するような
インターロックシステムになっている。The electric power supply control device D is a device interposed between the power supply part and the above-mentioned supply side connection part A, and includes a fitting / coupling detection device E and a clean gas supply detection device F which will be described later. This is a device for controlling the electric power supply from the power supply unit to the supply-side connection unit A based on the information of 1. The fitting / coupling detection device E is a device that detects that the cylinder 1 is in a predetermined position by a limit switch arranged on the outer circumference of the cylinder 1 and confirms the fitting and the coupling. By sending a confirmation signal to the electricity supply control device D, the electricity supply control device D starts to supply electricity to the supply side connection portion A. Further, the clean gas supply detection device F is
By detecting the internal pressure of the cylinder 1, the presence or absence of supply of clean gas is monitored, and if the pressure of the clean gas drops, the drop in internal pressure of the cylinder 1 is sensed, and a signal to that effect is supplied to the electricity supply. By supplying the electricity to the control device D, the electricity supply control device D has an interlock system in which the electricity supply to the supply side connection portion A is cut off.
【０００９】上記この実施例の自動差込み接続装置を用
いて、電源ラインコンタクトの接続・分断を行うには、
まず、図１の供給側接続部Ａを供給側接続部駆動装置Ｃ
で矢印方向に移動接近せしめ、この移動接近過程でガイ
ドピン１１とガイドピン受け口３により円筒１と受け側
接続部Ｂの受容部１０の芯が合わされた後、円筒１が上
記受容部１０に挿入嵌合され、円筒１の外周面に設けら
れたＯリング４が受容部１０の内周面に圧接されて受容
部１０内は外気から遮断される。これが図４に示す状態
である。この時、嵌合・結合検出装置Ｅは円筒１の外周
に配設されているリミットスイッチにより円筒１が所定
の嵌合位置にあることを検出して嵌合を確認する。この
状態で供給側接続部Ａの動きをいったん停止し、受容部
１０の内部に、供給側接続部Ａのソケットコンタクト２
の通気口を介して、少なくとも受容部１０およびこれに
連通する空間の容積の５倍の清浄気体を供給し、受容部
１０内に残留している爆発性ガスを排気口１４から排出
して受容部１０内を清浄気体雰囲気に置換する。この置
換が完了したところで、供給側接続部Ａの矢印方向への
移動を再開し、ソケットコンタクト２にピンコンタクト
１２が挿入結合される。この時、上記排気口１４に取付
けられた排気管１５の出口に供給側接続部Ａの盲栓８が
圧接されるため、ソケットコンタクト２とピンコンタク
ト１２の周囲を含む受容部１０が排気口を閉鎖されて清
浄気体雰囲気の閉鎖空間となる。これが図５に示す状態
である。この時、嵌合・検出装置Ｅは円筒１の外周に配
設されているリミットスイッチにより円筒１が所定の結
合位置にあることを検出して結合を確認する。さらに、
清浄気体が供給されていることを清浄気体供給検出装置
Ｆにより検出して確認する。前記嵌合・結合検出装置Ｅ
と清浄気体供給検出装置Ｆからの信号が同時に作用して
いる場合に電気供給制御装置Ｄにより電気供給を開始す
る。電源供給後もソケットコンタクト２とピンコンタク
ト１２の周囲は、清浄気体雰囲気の閉鎖空間を保持し、
かつ、受容部１０への清浄気体の供給も継続されるた
め、常に清浄気体雰囲気に保持される。また、清浄気体
供給検出装置Ｆは、円筒１の内部圧力を検出することに
より受容部１０の圧力を監視して、万一清浄気体の供給
が喪失した場合に電源を遮断するインターロックを用意
している。In order to connect / disconnect the power supply line contact using the automatic plug-in / connecting device of this embodiment,
First, the supply side connecting portion A of FIG.
To move in the direction of the arrow in the arrow direction, and in the process of moving and approaching, the guide pin 11 and the guide pin receiving port 3 align the core of the cylinder 1 with the receiving portion 10 of the receiving side connecting portion B, and then the cylinder 1 is inserted into the receiving portion 10. The O-ring 4 fitted and provided on the outer peripheral surface of the cylinder 1 is pressed against the inner peripheral surface of the receiving portion 10 to shield the inside of the receiving portion 10 from the outside air. This is the state shown in FIG. At this time, the fitting / coupling detecting device E confirms the fitting by detecting that the cylinder 1 is at a predetermined fitting position by a limit switch arranged on the outer circumference of the cylinder 1. In this state, the movement of the supply-side connecting portion A is temporarily stopped, and the socket contact 2 of the supply-side connecting portion A is placed inside the receiving portion 10.
At least five times as much clean gas as the volume of the receiving portion 10 and the space communicating with the receiving portion 10 is supplied through the ventilation port of the exhaust gas and the explosive gas remaining in the receiving portion 10 is discharged from the exhaust port 14 to be received. The inside of the portion 10 is replaced with a clean gas atmosphere. When this replacement is completed, the movement of the supply side connecting portion A in the arrow direction is restarted, and the pin contact 12 is inserted and coupled to the socket contact 2. At this time, since the blind plug 8 of the supply side connecting portion A is pressed against the outlet of the exhaust pipe 15 attached to the exhaust port 14, the receiving portion 10 including the periphery of the socket contact 2 and the pin contact 12 serves as the exhaust port. It is closed to form a closed space with a clean gas atmosphere. This is the state shown in FIG. At this time, the fitting / detecting device E confirms the connection by detecting that the cylinder 1 is at a predetermined connecting position by means of a limit switch arranged on the outer periphery of the cylinder 1. further,
The clean gas supply detection device F detects and confirms that the clean gas is being supplied. The fitting / coupling detection device E
When the signals from the clean gas supply detecting device F and the signal from the clean gas supply detecting device F are simultaneously acting, the electric supply control device D starts the electric supply. Even after the power is supplied, the surroundings of the socket contact 2 and the pin contact 12 maintain a closed space of a clean gas atmosphere,
Moreover, since the supply of the clean gas to the receiving portion 10 is also continued, the clean gas atmosphere is always maintained. In addition, the clean gas supply detection device F monitors the pressure of the receiving portion 10 by detecting the internal pressure of the cylinder 1, and prepares an interlock that shuts off the power source if the supply of clean gas is lost. ing.
【００１０】以上述べたように、この実施例の自動差込
み接続装置にあっては、接続作業中において、ソケット
コンタクト２とピンコンタクト１２の周囲を、常に清浄
気体雰囲気とすることができ、しかもソケットコンタク
ト２とピンコンタクト１２との接続が無電圧状態での挿
入結合であるため、極めて安全に電気接続作業を行うこ
とができる。また、さらに電源供給中にあっても上記ソ
ケットコンタクト２とピンコンタクト１２の周囲が常に
清浄気体雰囲気に加圧的に保持されるため、封入式内圧
防爆構造の要求を完全に満足するものである。また、ば
ね部材と盲栓を省略して通風式内圧防爆構造として使用
してもよい。なお、上述した実施例においては、ソケッ
トコンタクト２として、図３に示すように、ソケットコ
ンタクト内部に貫通する通気口ｄが設けられたものを用
いているが、これに限定されるものではなく、例えば、
ソケットコンタクト２が通気口ｄを設けるには細すぎる
場合には、図６に示すように、通気口ｄ’をソケットコ
ンタクト周囲に配置したものを用いてもよい。さらに、
上述した実施例においては、嵌合・結合検出装置Ｅの機
器として、リミットスイッチを用いているが、これに限
定されるものではなく、例えば、近接スイッチや光電ス
イッチなどを使用してもよい。また、ソケットコンタク
ト２とピンコンタクト１２の結合の確認を、排気管１５
の出口が閉鎖されることによる清浄気体供給検出装置Ｆ
の圧力変化として、あるいは、ソケットコンタクトとピ
ンコンタクトの結合によって閉回路を形成する検出用コ
ンタクトを設けておいてその導通を検出することによっ
て、検出することも可能である。As described above, in the automatic plug-in / connecting device of this embodiment, the surroundings of the socket contact 2 and the pin contact 12 can always be kept in a clean gas atmosphere during the connecting work, and the socket Since the connection between the contact 2 and the pin contact 12 is the insertion coupling in the non-voltage state, the electric connection work can be performed extremely safely. Further, even while the power is being supplied, the surroundings of the socket contact 2 and the pin contact 12 are constantly kept under pressure in a clean gas atmosphere, so that the requirement of the enclosed internal pressure explosion-proof structure is completely satisfied. . Further, the spring member and the blind plug may be omitted to use as a ventilation type internal pressure explosion-proof structure. In addition, in the above-mentioned embodiment, as the socket contact 2, as shown in FIG. 3, the one provided with the vent hole d penetrating inside the socket contact is used, but it is not limited to this. For example,
When the socket contact 2 is too thin to provide the vent hole d, the vent hole d ′ may be arranged around the socket contact as shown in FIG. further,
In the embodiment described above, the limit switch is used as the device of the fitting / coupling detection device E, but the invention is not limited to this, and for example, a proximity switch or a photoelectric switch may be used. Also, check the connection between the socket contact 2 and the pin contact 12 by checking the exhaust pipe 15
Clean gas supply detection device F by closing the outlet of the
It is also possible to detect the pressure change as described above, or by providing a detection contact that forms a closed circuit by coupling the socket contact and the pin contact and detecting the conduction thereof.
【００１１】[0011]
【発明の効果】以上説明したように本発明によれば、供
給側接続部と受け側接続部とを結合してソケットコンタ
クトとピンコンタクトとを接続せしめる操作を行う際、
円筒に清浄気体を供給し、かつ、ソケットコンタクトの
通気口を排気口として作用せしめて常にソケットコンタ
クトの周囲を清浄気体雰囲気に保つことができ、しかも
この結合操作は無電圧状態で行われるので、極めて安全
性が高いものである。また、本発明の自動差込み接続装
置にあっては、上記供給側接続部の円筒の外周に形成さ
れたフランジと、受け側接続部の外筒の外周に形成され
た上記円筒のフランジに対向するフランジと、これらフ
ランジの何れか一方に設けられたガイドピンと、このガ
イドピンが設けられていない他方のフランジに形成され
たガイドピン受け口とからなる嵌合ガイドを設けたの
で、上記供給側接続部と、上記受け側接続部とを結合す
る操作を行う際、このガイドピンが前記ガイドピン受け
口に挿入され、上記円筒と上記外筒の芯が合わされて、
嵌脱操作を円滑、かつ、確実に行うことができるもので
ある。さらに、本発明の自動差込み接続装置にあって
は、上記供給側接続部と上記受け側接続部との嵌合・結
合を確認する嵌合・結合検出装置と、上記円筒内への清
浄気体供給の有無を感知する清浄気体供給検出装置と、
ソケットコンタクトとピンコンタクトの接合完了時に、
上記排気管の出口を閉鎖して上記受容部を閉鎖空間とす
るための閉鎖手段と、上記嵌合・結合検出装置および上
記清浄気体供給検出装置に連動して、電源からの電気供
給を制御する電源供給制御装置とを具備する構成とした
ので、コンタクト接続中（通電中）も、少量の清浄気体
の供給で接続装置内部が接続装置外部よりも圧力が高い
状態に保持され、接続装置内部へ爆発性気体の侵入は完
全に阻止されて、コンタクト周囲を常時清浄気体雰囲気
とすることができる。従って、仮に外気が爆発性雰囲気
であっても極めて安全な状態で通電することができる。
また、コンタクト周囲に、清浄気体が供給され続けてい
ることを清浄気体供給検出装置によって常に確認可能な
ので、万一清浄気体の供給が絶たれた場合でも、電気供
給制御手段によって電気の供給が直ちに絶たれるので、
極めて安全である。さらに、封入式の構造にせしめるこ
とにより、コンタクト接続中（通電中）に消費される清
浄気体の量を少なくできるので、極めて経済的である。As described above, according to the present invention, when the operation of connecting the supply side connecting portion and the receiving side connecting portion to connect the socket contact and the pin contact is performed,
By supplying clean gas to the cylinder, and by making the vent hole of the socket contact act as an exhaust port, it is possible to always maintain a clean gas atmosphere around the socket contact, and since this coupling operation is performed without voltage, It is extremely safe. Further, in the automatic plug-in / connecting device of the present invention, the flange formed on the outer periphery of the cylinder of the supply-side connecting portion and the flange of the cylinder formed on the outer periphery of the outer cylinder of the receiving-side connecting portion are opposed to each other. Since the fitting guide including the flange, the guide pin provided on one of the flanges, and the guide pin receiving port formed on the other flange not provided with the guide pin is provided, the supply side connecting portion is provided. And, when performing an operation of coupling the receiving side connection portion, this guide pin is inserted into the guide pin receiving port, the core of the cylinder and the outer cylinder are aligned,
The fitting / removing operation can be performed smoothly and surely. Further, in the automatic plug-in / connect device of the present invention, a fitting / coupling detecting device for confirming fitting / coupling between the supply-side connecting part and the receiving-side connecting part, and supply of clean gas into the cylinder. A clean gas supply detection device for detecting the presence or absence of
Upon completion of joining the socket contact and pin contact,
The electric supply from the power supply is controlled in conjunction with the closing means for closing the outlet of the exhaust pipe to make the receiving portion a closed space, the fitting / coupling detection device and the clean gas supply detection device. Since it is equipped with a power supply control device, the pressure inside the connection device is maintained at a higher pressure than the outside of the connection device by supplying a small amount of clean gas even when the contacts are connected (energized). The invasion of explosive gas is completely prevented, and the atmosphere around the contact can always be kept in a clean gas atmosphere. Therefore, even if the outside air is an explosive atmosphere, it is possible to energize in an extremely safe state.
Further, since it is possible to always confirm that the clean gas is continuously supplied to the surroundings of the contact by the clean gas supply detection device, even if the supply of the clean gas is interrupted, the electricity is immediately supplied by the electric supply control means. Because it will be cut off
It is extremely safe. Further, by using the enclosed structure, the amount of clean gas consumed during contact connection (current application) can be reduced, which is extremely economical.
【図１】 本発明の自動差込み接続装置の実施例の側面
断面図である。FIG. 1 is a side sectional view of an embodiment of an automatic plug-in connection device of the present invention.
【図２】 図１に示す自動差込み接続装置の概要を示す
ブロック図である。FIG. 2 is a block diagram showing an outline of the automatic plug-in / connecting device shown in FIG.
【図３】 図１中の符号１で示される円筒の先端に設け
られる清浄気体導入手段について説明するための拡大断
面図である。FIG. 3 is an enlarged cross-sectional view for explaining a clean gas introducing unit provided at the tip of a cylinder indicated by reference numeral 1 in FIG.
【図４】 本発明の自動差込み接続装置の実施例の電源
ラインコンタクトの接続・分断を行う操作を説明するた
めの図で、供給側接続部駆動装置Ｃにより、供給側接続
部Ａを受け側接続部Ｂに移動接近せしめ、円筒１を外筒
９に挿入嵌合した状態を示す側面断面説明図である。FIG. 4 is a diagram for explaining an operation of connecting / disconnecting a power supply line contact of an embodiment of the automatic plug-in / connecting device of the present invention, in which a supplying side connecting part driving device C receives a supplying side connecting part A FIG. 7 is a side cross-sectional explanatory view showing a state in which the cylinder 1 is moved and brought close to the connection portion B, and the cylinder 1 is inserted and fitted into the outer cylinder 9.
【図５】 本発明の自動差込み接続装置の実施例の電源
ラインコンタクトの接続・分断を行う操作を説明するた
めの図で、円筒１を外筒９にさらに挿入し、これにより
ソケットコンタクト２にピンコンタクト１２を挿入結合
した状態を示す側面断面説明図である。FIG. 5 is a view for explaining the operation of connecting / disconnecting the power supply line contact of the embodiment of the automatic plug-in / connecting device of the present invention, in which the cylinder 1 is further inserted into the outer cylinder 9 and thereby the socket contact 2 is inserted. FIG. 6 is a side cross-sectional explanatory view showing a state in which the pin contact 12 is inserted and coupled.
【図６】 図３に示した清浄気体の導入手段の変形例に
ついて説明するための図で、円筒１の先端部の拡大断面
図である。FIG. 6 is an enlarged cross-sectional view of the tip portion of the cylinder 1 for explaining a modified example of the clean gas introducing unit shown in FIG.
１…円筒 １ａ…フランジ ２…ソケットコンタクト ３…ガイドピン受け口 ４…Ｏリング ５…取出口 ６…導入口 ７…ばね部材 ８…盲栓 ９…外筒 ９ｂ…フランジ １０…受容部 １１…ガイドピン １２…ピンコンタクト １３…ピンコンタクト取付板 １４…排気口 １５…排気管 ２０…電源ケーブル Ａ…供給側接続部 Ｂ…受け側接続部 Ｃ…供給側接続部駆動装置 Ｄ…電源供給制御装置 Ｅ…嵌合・結合検出装置 Ｆ…清浄気体供給検出装置 ｄ…通気口 ｄ’…通気口 DESCRIPTION OF SYMBOLS 1 ... Cylinder 1a ... Flange 2 ... Socket contact 3 ... Guide pin receiving port 4 ... O-ring 5 ... Outlet port 6 ... Introducing port 7 ... Spring member 8 ... Blind plug 9 ... Outer cylinder 9b ... Flange 10 ... Receiving part 11 ... Guide pin 12 ... Pin contact 13 ... Pin contact mounting plate 14 ... Exhaust port 15 ... Exhaust pipe 20 ... Power cable A ... Supply side connection part B ... Reception side connection part C ... Supply side connection part drive device D ... Power supply control device E ... Fitting / coupling detector F ... Clean gas supply detector d ... Vent d '... Vent
Claims (2)
コンタクトが埋設され、他端にこのソケットコンタクト
と接続する電気配線を取り出す取出口と非爆発性の清浄
気体を導入する導入口とが形成された円筒からなる供給
側接続部と、 一端に上記供給側接続部を受容する受容部が設けられ、
この受容部の後方に上記供給側接続部のソケットコンタ
クトと対をなすピンコンタクトが設けられ、このピンコ
ンタクトの取り付け部に通気口が設けられ、他端にこの
ピンコンタクトと接続する電気配線を取り出す取出口と
上記供給側接続部より供給された非爆発性の清浄気体を
排出する排気口とが形成された外筒からなる受け側接続
部と、 上記供給側接続部と上記受け側接続部の受容部とを嵌合
させて、上記ソケットコンタクトと上記ピンコンタクト
とを接続させたり分断せしめる接合分断手段と、 上記ソケットコンタクトと上記ピンコンタクトとの接合
完了時に、上記排気口を閉鎖して上記受容部を閉鎖空間
とするための閉鎖手段と、 上記供給側接続部又は上記受け側接続部のいずれか１方
に設けられたガイドピンと、このガイドピンが設けられ
ていない何れか他方に形成されたピン受け口とからな
り、上記供給側接続部と上記受け側接続部の受容部との
嵌合操作を円滑化せしめる嵌合ガイドと、 上記供給側接続部と上記受け側接続部とを結合して上記
ソケットコンタクトと上記ピンコンタクトとを接続・分
断する際、これらコンタクト近傍の雰囲気を清浄気体雰
囲気とする清浄気体供給手段と、 上記供給側接続部と上記受け側接続部の嵌合と結合を確
認する嵌合・結合検出装置と、 上記供給側接続部内への清浄気体供給の有無を感知する
清浄気体供給検出装置と、 上記結合検出装置と上記清浄気体供給検出装置とに連動
して電源からの電気供給を制御する電気供給制御手段と
からなることを特徴とする自動差込み接続装置。1. A socket contact for electrical connection, which also serves as a ventilation hole, is embedded at one end, and an outlet for taking out an electrical wire connected to the socket contact and an inlet for introducing a non-explosive clean gas are provided at the other end. A supply-side connecting portion made of a cylinder formed with, and a receiving portion for receiving the supply-side connecting portion at one end,
A pin contact that is paired with the socket contact of the supply-side connection portion is provided behind the receiving portion, a ventilation port is provided at the attachment portion of the pin contact, and an electric wire connected to the pin contact is taken out at the other end. A receiving side connecting part formed of an outer cylinder formed with an outlet and an exhaust port for discharging the non-explosive clean gas supplied from the supplying side connecting part, and the supplying side connecting part and the receiving side connecting part. When the socket contact and the pin contact are completely joined, the exhaust port is closed to close the socket and the socket contact and the pin contact by connecting or disconnecting the socket contact and the pin contact. Means for making the portion into a closed space, a guide pin provided on either one of the supply-side connecting portion or the receiving-side connecting portion, and the guide pin A fitting guide, which comprises a pin receiving port formed on the other side that is not provided, and which facilitates a fitting operation between the supply-side connecting portion and the receiving portion of the receiving-side connecting portion, and the supply-side connecting portion. When connecting and disconnecting the socket contact and the pin contact by connecting the socket contact and the receiving side connection portion, a clean gas supply means for setting an atmosphere near these contacts to a clean gas atmosphere, the supply side connection portion and the above A fitting / coupling detection device that confirms the fitting and connection of the receiving side connection part, a clean gas supply detection device that senses the presence or absence of supply of clean gas into the supply side connection part, the combination detection device and the clean gas An automatic plug-in connecting device comprising: an electric supply control means for controlling electric supply from a power source in conjunction with a supply detecting device.
気口を設けたことを特徴とする請求項１記載の自動差込
み接続装置。2. The automatic plug-in / connecting device according to claim 1, wherein a clean gas vent is provided around the socket contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21981193A JP3250882B2 (en) | 1993-09-03 | 1993-09-03 | Automatic plug-in connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21981193A JP3250882B2 (en) | 1993-09-03 | 1993-09-03 | Automatic plug-in connection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0773928A true JPH0773928A (en) | 1995-03-17 |
| JP3250882B2 JP3250882B2 (en) | 2002-01-28 |
Family
ID=16741409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21981193A Expired - Fee Related JP3250882B2 (en) | 1993-09-03 | 1993-09-03 | Automatic plug-in connection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3250882B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826677A (en) * | 2009-03-05 | 2010-09-08 | 肖特公开股份有限公司 | Electrical power connection device |
| JP2012129149A (en) * | 2010-12-17 | 2012-07-05 | Tyco Electronics Japan Kk | Waterproof connector and assembling method thereof |
| JP5287244B2 (en) * | 2006-06-12 | 2013-09-11 | コニカミノルタ株式会社 | Coating device |
| JP3200970U (en) * | 2015-09-03 | 2015-11-12 | 昌樹 松本 | Outlet with switch and improved plug |
| CN106877073A (en) * | 2017-03-31 | 2017-06-20 | 东莞松山智能机器人有限公司 | Automate safe power device |
-
1993
- 1993-09-03 JP JP21981193A patent/JP3250882B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5287244B2 (en) * | 2006-06-12 | 2013-09-11 | コニカミノルタ株式会社 | Coating device |
| CN101826677A (en) * | 2009-03-05 | 2010-09-08 | 肖特公开股份有限公司 | Electrical power connection device |
| JP2012129149A (en) * | 2010-12-17 | 2012-07-05 | Tyco Electronics Japan Kk | Waterproof connector and assembling method thereof |
| CN102570155A (en) * | 2010-12-17 | 2012-07-11 | 泰科电子日本合同会社 | Water-proof connector and method of assembly of water-proof connector |
| CN102570155B (en) * | 2010-12-17 | 2015-11-25 | 泰科电子日本合同会社 | The assemble method of water-proof connector, water-proof connector |
| JP3200970U (en) * | 2015-09-03 | 2015-11-12 | 昌樹 松本 | Outlet with switch and improved plug |
| CN106877073A (en) * | 2017-03-31 | 2017-06-20 | 东莞松山智能机器人有限公司 | Automate safe power device |
| CN106877073B (en) * | 2017-03-31 | 2023-01-17 | 东莞松山智能机器人有限公司 | Automatic safe electrifying device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3250882B2 (en) | 2002-01-28 |
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