JP2015536020A - Device for hermetically guiding a conductor through a housing wall - Google Patents

Device for hermetically guiding a conductor through a housing wall Download PDF

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JP2015536020A
JP2015536020A JP2015533551A JP2015533551A JP2015536020A JP 2015536020 A JP2015536020 A JP 2015536020A JP 2015533551 A JP2015533551 A JP 2015533551A JP 2015533551 A JP2015533551 A JP 2015533551A JP 2015536020 A JP2015536020 A JP 2015536020A
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housing
insulating bushing
conductor
housing wall
recess
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JP6025993B2 (en
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ズリッツェ、マルクス
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Siemens AG
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Siemens AG
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/02—Housing; Enclosing; Embedding; Filling the housing or enclosure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/26—Lead-in insulators; Lead-through insulators
    • H01B17/30—Sealing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
    • H01C7/12—Overvoltage protection resistors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H01F27/04—Leading of conductors or axles through casings, e.g. for tap-changing arrangements

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Insulating Bodies (AREA)
  • Insulators (AREA)

Abstract

本発明は、ハウジング壁、特に避雷器又は測定変換器のハウジング壁を貫通する導体を気密に案内するための装置であって、ハウジング内面に配置された内側絶縁ブッシングと、これに対向してハウジング外面に配置された外側絶縁ブッシングとを有する装置に関する。前記導体は案内軸に沿って内側絶縁ブッシングとハウジング壁の開口と外側ブッシングとを貫通して案内される。本発明によれば、外側絶縁ブッシングがハウジング壁の凹所内で案内軸に関して回転しないように固定されている。装置組立時にハウジング内面の側で締付けねじが取り付けられる際に、それによって絶縁ブッシングが一緒に回転せず、従って工具で拘束する必要がなく、このことが組立を容易にする。【選択図】図１The present invention is an apparatus for hermetically guiding a conductor penetrating a housing wall, in particular a lightning arrester or a measuring transducer housing wall, an inner insulating bushing arranged on the inner surface of the housing, and an outer surface of the housing opposite to this And an outer insulating bushing disposed on the surface. The conductor is guided along the guide axis through the inner insulating bushing, the housing wall opening and the outer bushing. According to the invention, the outer insulating bushing is fixed against rotation with respect to the guide shaft in the recess of the housing wall. When the clamping screw is attached on the inner side of the housing during assembly of the device, the insulating bushings do not rotate together and therefore do not need to be restrained by a tool, which facilitates assembly. [Selection] Figure 1

Description

本発明は、請求項１の前文に記載された、ハウジング壁を貫通して導体を気密に案内するための装置に関する。   The invention relates to a device for hermetically guiding a conductor through a housing wall as described in the preamble of claim 1.

ガス絶縁開閉装置は、しばしば、高電圧ブッシングのほかに接地用又は監視装置用の他のブッシングを必要とする構成要素を有する。このような構成要素は、例えば、発生する放電電流で監視されるべきアース線を有する避雷器である。このようなブッシングを通して、導体が気密なハウジング内部から外部へ引き出される。その導体は、ハウジングに対して電気的に絶縁されていなければならない。この場合に、発生する電圧が僅かであることから、ブッシングとしては、しばしば、ハウジング開口においてハウジング内側と外側とに配置された２つの絶縁ブッシングで十分である。その導体は、内部から内側ブッシングを貫通し、そして無接触でハウジング開口を貫通し、さらに外側ブッシングを貫通して案内される。   Gas-insulated switchgear often has components that require other bushings for grounding or monitoring devices in addition to high voltage bushings. Such a component is, for example, a lightning arrester having a ground wire to be monitored with the generated discharge current. Through such a bushing, the conductor is drawn out from the inside of the airtight housing. The conductor must be electrically insulated from the housing. In this case, since only a small amount of voltage is generated, two insulating bushings arranged on the inside and outside of the housing at the housing opening are often sufficient as the bushing. The conductor is guided from the inside through the inner bushing and through the housing opening without contact and through the outer bushing.

本発明の課題は、格別に簡単に取り付けられるハウジング壁を貫通して導体を気密に案内するための装置を提供することにある。   It is an object of the present invention to provide an apparatus for hermetically guiding a conductor through a housing wall that is particularly easily mounted.

この課題は、請求項１による本発明の手段により解決される。   This problem is solved by means of the invention according to claim 1.

ハウジング壁、特に避雷器又は測定変換器のハウジング壁を貫通して導体を気密に案内するための装置が、ハウジング内面に配置された内側絶縁ブッシングと、これに対向してハウジング外面に配置された外側絶縁ブッシングとを有する。前記導体が、案内軸に沿って、内側絶縁ブッシングとハウジング壁の開口と外側絶縁ブッシングとを貫通して案内されている。本発明によれば、外側絶縁ブッシングがハウジング壁の凹所内で案内軸に関して回転しないように固定されている。これは、例えば、外側絶縁ブッシングのハウジング側の端面に、例えば複数のピンの如き突起部を案内軸の方向に配置し、当該突起部をハウジング外面における対応する凹みに係合させることによって達成される。装置組立時にハウジング内面側で締付けナットが導体に螺合される際に、その絶縁ブッシングが一緒に回転しないので、その絶縁ブッシングを工具により拘束する必要がなく、このことが組立を容易にする。   A device for hermetically guiding the conductor through the housing wall, in particular the lightning arrester or the measuring transducer housing wall, is provided with an inner insulating bushing arranged on the inner surface of the housing and an outer surface arranged on the outer surface of the housing opposite thereto And an insulating bushing. The conductor is guided along the guide axis through the inner insulating bushing, the housing wall opening and the outer insulating bushing. According to the invention, the outer insulating bushing is fixed against rotation with respect to the guide shaft in the recess of the housing wall. This is achieved, for example, by disposing protrusions such as a plurality of pins in the direction of the guide shaft on the end surface of the outer insulating bushing on the housing side, and engaging the protrusions with corresponding recesses on the outer surface of the housing. The When the clamping nut is screwed into the conductor on the inner surface side of the housing at the time of assembling the device, the insulating bushing does not rotate together, so that it is not necessary to restrain the insulating bushing with a tool, which facilitates the assembly.

本発明の有利な実施形態では、ハウジング壁の凹所と、その凹所内に突出する外側絶縁ブッシングの少なくとも一部分とが、案内軸に関して回転対称でない合同の横断面を有する。例えば、その絶縁ブッシングが筒状であり、好ましくは丸くされた３、４又は６個の角を有する多角形の横断面を有するとよい。ハウジング壁における凹所が対応する横断面を有するので、この凹所に外側絶縁ブッシングを部分的に嵌め込むことができる。従って、多角形の横断面によって、外側絶縁ブッシングは案内軸の周りの回転に関してその回転ができないように固定されている。外側絶縁ブッシングの相応に形成された外側輪郭によって回転防止が達成されるので、それの端面側には何の装置も必要としない。外側絶縁ブッシングの端面を平らに形成して当該凹所内において水平にハウジング壁に載置するならば、信頼性の高い封止を格別に簡単に達成することができる。さらに、その絶縁ブッシングは非常に簡単に製造可能である。   In an advantageous embodiment of the invention, the recess in the housing wall and at least a part of the outer insulating bushing protruding into the recess have a congruent cross section that is not rotationally symmetric with respect to the guide axis. For example, the insulating bushing is cylindrical and preferably has a rounded polygonal cross section with 3, 4 or 6 corners. Since the recess in the housing wall has a corresponding cross section, the outer insulating bushing can be partially fitted in this recess. Thus, the outer insulating bushing is fixed by a polygonal cross section so that it cannot rotate with respect to the rotation about the guide shaft. Since the anti-rotation is achieved by a correspondingly formed outer contour of the outer insulating bushing, no device is required on its end face side. If the end face of the outer insulating bushing is formed flat and mounted on the housing wall horizontally in the recess, a reliable seal can be achieved particularly easily. Furthermore, the insulating bushing can be manufactured very easily.

本発明の他の有利な実施形態では、前記導体がストッパ部を有し、そのストッパ部が、例えば嵌め合い結合により、外側絶縁ブッシングの対応する凹所内で、案内軸に関して回転しないように固定されている。そのストッパ部は、前記導体のハウジング外側の端部領域において案内軸に対して半径方向に広がった円形の成形部であって、１つ又は複数の平らにされた側面を有する成形部であるとよい。その凹所は、外側絶縁ブッシングのハウジング外側の端面において、前記成形部に対応して成形されている。従って、ストッパ部が、一方では導体のための深さ方向ストッパとして利用され、他方では回転防止のために役立つので、組立のためにハウジング内面側において締付けナットを前記導体に螺合させる際に、前記導体は一緒に回転しない。当該絶縁ブッシングが同様に回転しないように固定されているので、装置組立のためにハウジングの外面側に拘束工具がもはや必要でない。   In another advantageous embodiment of the invention, the conductor has a stopper part which is fixed against rotation with respect to the guide shaft in a corresponding recess of the outer insulating bushing, for example by a mating connection. ing. The stopper portion is a circular molded portion extending radially with respect to the guide shaft in an end region outside the housing of the conductor, and is a molded portion having one or more flattened side surfaces. Good. The recess is formed corresponding to the forming portion on the outer end face of the outer insulating bushing on the housing. Therefore, the stopper part is used on the one hand as a depth direction stopper for the conductor, and on the other hand serves to prevent rotation, so that when assembling the tightening nut on the inner surface of the housing for assembly, The conductors do not rotate together. Since the insulating bushing is similarly fixed against rotation, a restraining tool is no longer required on the outer side of the housing for assembly.

以下において本発明を図面に基づいてさらに詳細に説明する。   Hereinafter, the present invention will be described in more detail with reference to the drawings.

図１は本発明による装置の断面図を示す。FIG. 1 shows a cross-sectional view of a device according to the invention. 図２は本発明による装置のハウジング外面から見た図である。FIG. 2 is a view from the outside of the housing of the device according to the invention.

互いに対応する部分には全ての図において同一符号が付されている。   Parts corresponding to each other are denoted by the same reference numerals in all the drawings.

図１および図２は、ガス絶縁開閉装置、例えばガス絶縁避雷器の構成要素のハウジング壁１の一部を示す。ハウジング開口１７には、ハウジング外面１３の側に外側絶縁ブッシング４が配置され、この外側絶縁ブッシング４に対向してハウジング内面１４の側に内側絶縁ブッシング３が配置されており、従って両絶縁ブッシング３，４およびハウジング壁１を貫通する開口が存在する。この開口に導体５が差し込まれている。互いに嵌め合わされた２つの絶縁管１０がハウジング開口１７を通して両絶縁ブッシング３，４を連結し、導体５とハウジング壁１との間の絶縁耐力を高める。導体５は、シリンダボルトの様式で実施されており、ハウジング内面１４の側に締付けナット１６ためのねじ山を持ち、ハウジング外面１３の側にストッパ部７を持つ。そのストッパ部７は、ハウジング壁１の側とは反対側の外側絶縁ブッシング４の端面に平らに着座している。導体５の円柱軸が案内軸１５を規定する。ストッパ部７と外側絶縁ブッシング４との間にリング状シール１２が介挿されている。     1 and 2 show a part of a housing wall 1 of a component of a gas insulated switchgear, for example a gas insulated surge arrester. In the housing opening 17, the outer insulating bushing 4 is disposed on the housing outer surface 13 side, and the inner insulating bushing 3 is disposed on the housing inner surface 14 side facing the outer insulating bushing 4. , 4 and an opening through the housing wall 1 is present. A conductor 5 is inserted into this opening. Two insulating pipes 10 fitted to each other connect both insulating bushings 3 and 4 through the housing opening 17, and increase the dielectric strength between the conductor 5 and the housing wall 1. The conductor 5 is implemented in the form of a cylinder bolt, having a thread for a clamping nut 16 on the housing inner surface 14 side and a stopper portion 7 on the housing outer surface 13 side. The stopper portion 7 is flatly seated on the end surface of the outer insulating bushing 4 opposite to the housing wall 1 side. The cylindrical axis of the conductor 5 defines the guide axis 15. A ring-shaped seal 12 is inserted between the stopper portion 7 and the outer insulating bushing 4.

内側絶縁ブッシング３は、基本的には、一方の端面がハウジング内面１４に当接している中空筒体であり、ここでは円形底面を有する中空筒体が示されている。外側絶縁ブッシング４は、同様に中空筒体状であるが、しかし回転対称でない横断面を有する。ここでは丸くされた角を有する正方形の横断面が示されている。しかし、横断面が、例えば三角形又は六角形の多角形であってよいし、又は楕円形であってもよい。ハウジング外面１３は、ハウジング開口１７の周りに、例えばフライス削りによって作ることができる凹所６を有する。その凹所６の横断面は、外側絶縁ブッシング３の横断面に対応し、即ち外側絶縁ブッシング３の横断面と合同であるので、外側絶縁ブッシング３をこの凹所６内に部分的に嵌め込むことができる。外側絶縁ブッシング４のハウジング側の端面は、平らにハウジング壁１に当接していて、このハウジング壁１に対してリング状シール１１で封止されている。外側絶縁ブッシング４および凹所６の回転対称でない横断面によって、外側絶縁ブッシングは凹所６内において案内軸１５の周りの回転に関してその回転ができないように固定されている。   The inner insulating bushing 3 is basically a hollow cylinder whose one end surface is in contact with the inner surface 14 of the housing. Here, a hollow cylinder having a circular bottom surface is shown. The outer insulating bushing 4 is likewise a hollow cylinder but has a cross section that is not rotationally symmetric. Here, a square cross section with rounded corners is shown. However, the cross section may be, for example, a triangular or hexagonal polygon, or may be elliptical. The housing outer surface 13 has a recess 6 around the housing opening 17 that can be made, for example, by milling. The cross section of the recess 6 corresponds to the cross section of the outer insulating bushing 3, that is, is congruent with the cross section of the outer insulating bushing 3, so that the outer insulating bushing 3 is partially fitted in the recess 6. be able to. An end face on the housing side of the outer insulating bushing 4 is in contact with the housing wall 1 flatly and is sealed with a ring-shaped seal 11 with respect to the housing wall 1. By means of the non-rotationally symmetric cross section of the outer insulating bushing 4 and the recess 6, the outer insulating bushing is fixed in the recess 6 so that it cannot rotate with respect to rotation around the guide shaft 15.

導体５のストッパ部７は、導体５のハウジング外側の端部領域に配置された円板状成形部であり、この円板状成形部は平らにされた２つの側面を有する。外側絶縁ブッシング４は、ハウジング壁１の側とは反対側の端面に、嵌め合い結合によりストッパ部７を収容する凹所８を有する。嵌め合い結合は、ここではストッパ部の２つの平らな側面によって与えられており、ストッパ部の両側面は、ここでは突出部として示されている凹所８の２つの平らな側壁に当接している。この代わりに、凹所８の対応する壁に対応する１つのみ又は複数の平らな側面をストッパ部７に持たせることもできる。それにより、ストッパ部７および導体５が、外側絶縁ブッシング４内において案内軸１５に関して回転しないように固定されている。接続端子部９を介して接地ケーブル又は他の電線を導体５に接続することができる。   The stopper portion 7 of the conductor 5 is a disk-shaped molded portion disposed in an end region outside the housing of the conductor 5, and this disk-shaped molded portion has two flattened side surfaces. The outer insulating bushing 4 has a recess 8 in the end face opposite to the housing wall 1 side for receiving the stopper portion 7 by fitting and fitting. The mating connection is here given by the two flat sides of the stopper part, the two sides of the stopper part being in contact with the two flat side walls of the recess 8, here shown as a protrusion. Yes. Alternatively, the stopper portion 7 can have only one or a plurality of flat side surfaces corresponding to the corresponding walls of the recess 8. Accordingly, the stopper portion 7 and the conductor 5 are fixed so as not to rotate with respect to the guide shaft 15 in the outer insulating bushing 4. A ground cable or another electric wire can be connected to the conductor 5 through the connection terminal portion 9.

装置組立はハウジング蓋内において行われ、このハウジング蓋は装置組立が行われた後にハウジング上に載置される。ハウジング壁１を貫通して導体５を気密に案内するための装置を組み立てるべく、先ず外側絶縁ブッシングおよび内側絶縁ブッシングの中にそれぞれ１つの絶縁管１０が差し込まれ、そこに例えば接着剤により固定される。それから外側絶縁ブッシング４がハウジング外面１３の側からハウジング壁１の凹所６に嵌め込まれ、その際に絶縁管１０がハウジング開口１７に差し込まれる。内側絶縁ブッシング３に固定された絶縁管１０は、ハウジング内面１４の側からハウジング開口１７を貫通して外側絶縁ブッシング４の中まで差し込まれる。ここで導体５がハウジング外面１３の側から外側絶縁ブッシング４の中に差し込まれ、両絶縁管１０およびハウジング開口１７を貫通し、最後に内側絶縁ブッシング３を貫通してハウジング内面１４の側まで案内される。このときストッパ部７は外側絶縁ブッシング４の凹所８内にある。ハウジング内面１４の側から締付けナット１６が導体５に螺合されて、シール１１，１２がハウジング内面１４をハウジング外面１３に対して封止するに至るまで工具により締められる。外側絶縁ブッシング４はハウジング壁１３の凹所６内で、導体５のストッパ部７は外側絶縁ブッシング４の凹所８内で回転しないように固定されているので、締付けナット１６を締める際に導体５も外側絶縁ブッシング４も一緒に回転しない。従って、他の工具による回転阻止のための拘束が必要ではない。   The device assembly is performed in the housing lid, and the housing lid is placed on the housing after the device assembly is performed. In order to assemble a device for hermetically guiding the conductor 5 through the housing wall 1, first an insulating tube 10 is first inserted into each of the outer insulating bushing and the inner insulating bushing, and fixed thereto, for example, by an adhesive. The Then, the outer insulating bushing 4 is fitted into the recess 6 of the housing wall 1 from the housing outer surface 13 side, and at that time, the insulating tube 10 is inserted into the housing opening 17. The insulating tube 10 fixed to the inner insulating bushing 3 is inserted into the outer insulating bushing 4 from the housing inner surface 14 side through the housing opening 17. Here, the conductor 5 is inserted into the outer insulating bushing 4 from the housing outer surface 13 side, passes through both the insulating tubes 10 and the housing opening 17, and finally passes through the inner insulating bushing 3 to the housing inner surface 14 side. Is done. At this time, the stopper portion 7 is in the recess 8 of the outer insulating bushing 4. A clamping nut 16 is screwed into the conductor 5 from the housing inner surface 14 side, and is tightened by a tool until the seals 11 and 12 seal the housing inner surface 14 to the housing outer surface 13. Since the outer insulating bushing 4 is fixed in the recess 6 of the housing wall 13 and the stopper portion 7 of the conductor 5 is fixed so as not to rotate in the recess 8 of the outer insulating bushing 4, the conductor is used when the tightening nut 16 is tightened. Neither 5 nor the outer insulating bushing 4 rotate together. Therefore, there is no need for restraint to prevent rotation by other tools.

１ ハウジング壁
３ 内側絶縁ブッシング
４ 外側絶縁ブッシング
５ 導体
６ 凹所
７ ストッパ部
８ 凹所
９ 接続端子部
１０ 絶縁管
１１ リング状シール
１２ リング状シール
１３ ハウジング外面
１４ ハウジング内面
１５ 案内軸
１６ 締付けナット
１７ ハウジング開口 DESCRIPTION OF SYMBOLS 1 Housing wall 3 Inner side insulation bushing 4 Outer side insulation bushing 5 Conductor 6 Recess 7 Stopper part 8 Recess 9 Connection terminal part 10 Insulation tube 11 Ring seal 12 Ring seal 13 Housing outer surface 14 Housing inner surface 15 Guide shaft 16 Clamping nut 17 Housing opening

内側絶縁ブッシング３は、基本的には、一方の端面がハウジング内面１４に当接している中空筒体であり、ここでは円形底面を有する中空筒体が示されている。外側絶縁ブッシング４は、同様に中空筒体状であるが、しかし回転対称でない横断面を有する。ここでは丸くされた角を有する正方形の横断面が示されている。しかし、横断面が、例えば三角形又は六角形の多角形であってよいし、又は楕円形であってもよい。ハウジング外面１３は、ハウジング開口１７の周りに、例えばフライス削りによって作ることができる凹所６を有する。その凹所６の横断面は、外側絶縁ブッシング４の横断面に対応し、即ち外側絶縁ブッシング４の横断面と合同であるので、外側絶縁ブッシング４をこの凹所６内に部分的に嵌め込むことができる。外側絶縁ブッシング４のハウジング側の端面は、平らにハウジング壁１に当接していて、このハウジング壁１に対してリング状シール１１で封止されている。外側絶縁ブッシング４および凹所６の回転対称でない横断面によって、外側絶縁ブッシングは凹所６内において案内軸１５の周りの回転に関してその回転ができないように固定されている。 The inner insulating bushing 3 is basically a hollow cylinder whose one end surface is in contact with the inner surface 14 of the housing. Here, a hollow cylinder having a circular bottom surface is shown. The outer insulating bushing 4 is likewise a hollow cylinder but has a cross section that is not rotationally symmetric. Here, a square cross section with rounded corners is shown. However, the cross section may be, for example, a triangular or hexagonal polygon, or may be elliptical. The housing outer surface 13 has a recess 6 around the housing opening 17 that can be made, for example, by milling. Cross section of the recess 6 corresponds to the cross section of the outer insulating bushing 4, i.e. because it is congruent to the cross section of the outer insulating bushing 4, partially fitting the outer insulating bushing 4 into the recess 6 be able to. An end face on the housing side of the outer insulating bushing 4 is in contact with the housing wall 1 flatly and is sealed with a ring-shaped seal 11 with respect to the housing wall 1. By means of the non-rotationally symmetric cross section of the outer insulating bushing 4 and the recess 6, the outer insulating bushing is fixed in the recess 6 so that it cannot rotate with respect to rotation around the guide shaft 15.

装置組立はハウジング蓋内において行われ、このハウジング蓋は装置組立が行われた後にハウジング上に載置される。ハウジング壁１を貫通して導体５を気密に案内するための装置を組み立てるべく、先ず外側絶縁ブッシングおよび内側絶縁ブッシングの中にそれぞれ１つの絶縁管１０が差し込まれ、そこに例えば接着剤により固定される。それから外側絶縁ブッシング４がハウジング外面１３の側からハウジング壁１の凹所６に嵌め込まれ、その際に絶縁管１０がハウジング開口１７に差し込まれる。内側絶縁ブッシング３に固定された絶縁管１０は、ハウジング内面１４の側からハウジング開口１７を貫通して外側絶縁ブッシング４の中まで差し込まれる。ここで導体５がハウジング外面１３の側から外側絶縁ブッシング４の中に差し込まれ、両絶縁管１０およびハウジング開口１７を貫通し、最後に内側絶縁ブッシング３を貫通してハウジング内面１４の側まで案内される。このときストッパ部７は外側絶縁ブッシング４の凹所８内にある。ハウジング内面１４の側から締付けナット１６が導体５に螺合されて、シール１１，１２がハウジング内面１４をハウジング外面１３に対して封止するに至るまで工具により締められる。外側絶縁ブッシング４はハウジング外面１３の凹所６内で、導体５のストッパ部７は外側絶縁ブッシング４の凹所８内で回転しないように固定されているので、締付けナット１６を締める際に導体５も外側絶縁ブッシング４も一緒に回転しない。従って、他の工具による回転阻止のための拘束が必要ではない。
The device assembly is performed in the housing lid, and the housing lid is placed on the housing after the device assembly is performed. In order to assemble a device for hermetically guiding the conductor 5 through the housing wall 1, first an insulating tube 10 is first inserted into each of the outer insulating bushing and the inner insulating bushing, and fixed thereto, for example, by an adhesive. The Then, the outer insulating bushing 4 is fitted into the recess 6 of the housing wall 1 from the housing outer surface 13 side, and at that time, the insulating tube 10 is inserted into the housing opening 17. The insulating tube 10 fixed to the inner insulating bushing 3 is inserted into the outer insulating bushing 4 from the housing inner surface 14 side through the housing opening 17. Here, the conductor 5 is inserted into the outer insulating bushing 4 from the housing outer surface 13 side, passes through both the insulating tubes 10 and the housing opening 17, and finally passes through the inner insulating bushing 3 to the housing inner surface 14 side. Is done. At this time, the stopper portion 7 is in the recess 8 of the outer insulating bushing 4. A clamping nut 16 is screwed into the conductor 5 from the housing inner surface 14 side, and is tightened by a tool until the seals 11 and 12 seal the housing inner surface 14 to the housing outer surface 13. The outer insulating bushing 4 is fixed in the recess 6 of the housing outer surface 13 and the stopper portion 7 of the conductor 5 is fixed so as not to rotate in the recess 8 of the outer insulating bushing 4. Neither 5 nor the outer insulating bushing 4 rotate together. Therefore, there is no need for restraint to prevent rotation by other tools.

Claims (3)

ハウジング壁（１）、特に避雷器又は測定変換器のハウジング壁（１）を貫通して導体（５）を気密に案内するための装置であって、ハウジング内面（１４）に配置された内側絶縁ブッシング（３）と、これに対向してハウジング外面（１３）に配置された外側絶縁ブッシング（４）とを有し、前記導体（５）が案内軸（１５）に沿って内側絶縁ブッシング（３）とハウジング壁の開口（１７）と外側絶縁ブッシング（４）とを貫通して案内されている装置において、
前記外側絶縁ブッシング（４）がハウジング壁（１）の凹所（６）内で案内軸（１５）に関して回転しないように固定されていることを特徴とする装置。 A device for hermetically guiding a conductor (5) through a housing wall (1), in particular a lightning arrester or a measuring transducer housing wall (1), arranged on the inner surface (14) of the housing (3) and an outer insulating bushing (4) disposed on the outer surface (13) of the housing so as to be opposed thereto, and the conductor (5) is arranged along the guide shaft (15) on the inner insulating bushing (3). And the device guided through the housing wall opening (17) and the outer insulating bushing (4),
Device characterized in that the outer insulating bushing (4) is fixed against rotation with respect to the guide shaft (15) in the recess (6) of the housing wall (1). ハウジング壁（１）の凹所（６）と、ハウジング壁（１）の凹所（６）内に突出する外側絶縁ブッシング（４）の少なくとも一部分とが、案内軸（１５）に関して回転対称でない合同の横断面を有することを特徴とする請求項１記載の装置。   The concavity (6) of the housing wall (1) and at least part of the outer insulating bushing (4) projecting into the recess (6) of the housing wall (1) are not rotationally symmetric with respect to the guide shaft (15) The apparatus of claim 1 having a cross section of: 前記導体（５）がストッパ部（７）を有し、そのストッパ部（７）が外側絶縁ブッシング（４）の対応する凹所（８）内で案内軸（１５）に関して回転しないように固定されていることを特徴とする請求項１又は２記載の装置。   The conductor (5) has a stopper part (7), and the stopper part (7) is fixed so as not to rotate with respect to the guide shaft (15) in the corresponding recess (8) of the outer insulating bushing (4). The apparatus according to claim 1 or 2, characterized in that
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PCT/EP2013/069723 WO2014048875A1 (en) 2012-09-28 2013-09-23 Device for guiding a conductor through a housing wall in a gastight manner

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