JP4550629B2 - Busbar connection device - Google Patents

Busbar connection device Download PDF

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JP4550629B2
JP4550629B2 JP2005063854A JP2005063854A JP4550629B2 JP 4550629 B2 JP4550629 B2 JP 4550629B2 JP 2005063854 A JP2005063854 A JP 2005063854A JP 2005063854 A JP2005063854 A JP 2005063854A JP 4550629 B2 JP4550629 B2 JP 4550629B2
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bus
conductor
bushing
connection
recess
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JP2006254529A (en
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章 佐藤
勝 宮川
修 阪口
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Toshiba Corp
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Description

本発明は、列盤されたスイッチギヤの盤間の接続を容易にし得る母線接続装置に関する。   The present invention relates to a busbar connection device that can facilitate connection between panels of switchgears arranged in a row.

従来のこの種の電気機器におけるスイッチギヤの盤間を接続する母線接続装置は、エポキシ樹脂や絶縁ゴムのような各種の絶縁材料をモールドして形成した固体絶縁式のものが知られている（例えば、特許文献１参照。）。   As a conventional bus connecting device for connecting switchgear panels in this type of electrical equipment, a solid insulation type formed by molding various insulating materials such as epoxy resin and insulating rubber is known ( For example, see Patent Document 1.)

図４に示すように、この母線接続装置１は、遮断器のような第１の電気機器２ａを収納した第１の箱体３ａの第１の天井板４ａと、第１の電気機器２ａと同様な第２の電気機器２ｂを収納した第２の箱体３ｂの第２の天井板４ｂ間に設けられている。また、母線接続装置１は、第１の箱体３ａと第２の箱体３ｂとの図示上部に設けられた第３の箱体３ｃ内に収納されている。これにより、列盤された箱体３ａ、３ｂ内に収納された第１の電気機器２ａと第２の電気機器２ｂとの主回路を接続することができる。   As shown in FIG. 4, this busbar connection device 1 includes a first ceiling plate 4a of a first box 3a that houses a first electric device 2a such as a circuit breaker, a first electric device 2a, It is provided between the 2nd ceiling boards 4b of the 2nd box 3b which accommodated the same 2nd electric equipment 2b. The busbar connection device 1 is housed in a third box 3c provided at the upper part of the first box 3a and the second box 3b. Thereby, the main circuit of the 1st electric equipment 2a and the 2nd electric equipment 2b accommodated in the box bodies 3a and 3b arranged in a line can be connected.

なお、図４においては、列盤される箱体３ａ、３ｂを二盤で示しているが、二盤以上の複数で用いることができる。また、母線接続装置１は、一相分を示している。   In addition, in FIG. 4, although the box bodies 3a and 3b arranged in a row are shown with two boards, it can be used with two or more boards. Moreover, the bus-bar connection apparatus 1 has shown the part for one phase.

この母線接続装置１は、図５に示すように、第１の母線ブッシング５ａと第２の母線ブッシング５ｂ、および絶縁母線６から構成されている。   As shown in FIG. 5, the bus connecting device 1 includes a first bus bushing 5 a, a second bus bushing 5 b, and an insulated bus 6.

第１の母線ブッシング５ａおよび第２の母線ブッシング５ｂには、それぞれ埋め込み導体７ａ、７ｂが埋め込まれており、その露出部の互いは対向して配置されている。この埋め込み導体７ａ、７ｂの露出部は、それぞれ図示上向きの段差部８ａ、８ｂに形成され、ネジ部９ａ、９ｂが設けられている。また、母線ブッシング５ａ、５ｂには、それぞれテーパー状の界面接続部１０ａ、１０ｂが形成されている。   Embedded conductors 7a and 7b are embedded in the first bus bushing 5a and the second bus bushing 5b, respectively, and the exposed portions thereof are arranged to face each other. The exposed portions of the buried conductors 7a and 7b are formed in stepped portions 8a and 8b facing upward in the drawing, respectively, and are provided with screw portions 9a and 9b. Further, tapered interface connection portions 10a and 10b are formed on the bus bushings 5a and 5b, respectively.

絶縁母線６には、中心導体１１の周りに、例えばポリエチレン樹脂やエポキシ樹脂のような絶縁材料をモールドして形成した絶縁層１２が設けられている。また、中心導体１１の両端には、前記埋め込み導体７ａ、７ｂの段差部８ａ、８ｂに嵌め込まれるような図示下向きの段差部１３ａ、１３ｂ、およびボルト１４が挿入される孔１５ａ、１５ｂがそれぞれ設けられている。   The insulating bus 6 is provided with an insulating layer 12 formed by molding an insulating material such as polyethylene resin or epoxy resin around the central conductor 11. Further, at both ends of the center conductor 11, downwardly-facing stepped portions 13a and 13b, which are fitted into the stepped portions 8a and 8b of the embedded conductors 7a and 7b, and holes 15a and 15b into which bolts 14 are inserted are provided, respectively. It has been.

一方、絶縁層１２の両端には、ＥＰゴムのような絶縁ゴムからなる押えカバー１６ａ、１６ｂがそれぞれ設けられている。また、それぞれの押えカバー１６ａ、１６ｂの端部には、テーパー状の界面接続部１７ａが形成されており、母線ブッシング５ａ、５ｂの界面接続部１０ａ（１０ｂ）と密着するようになっている。
特開２００２−１５２９３０号公報 （第１５〜１６ページ、図２７） On the other hand, presser covers 16a and 16b made of insulating rubber such as EP rubber are provided at both ends of the insulating layer 12, respectively. Further, tapered interface connecting portions 17a are formed at the end portions of the respective presser covers 16a and 16b so as to be in close contact with the interface connecting portions 10a (10b) of the bus bushings 5a and 5b.
JP 2002-152930 A (pages 15 to 16, FIG. 27)

上記の従来の母線接続装置１においては、次のような問題がある。   The above conventional busbar connection device 1 has the following problems.

第１の母線ブッシング５ａと第２の母線ブッシング５ｂ間の距離と、絶縁母線６の中心導体１１の長さとが異なると、図５に示すように、少なくとも一方のボルト１４とネジ部９ｂとが一致せず、ボルト１４が締付けられなくなる。これは、第１の箱体３ａと第２の箱体３ｂの外形形状の差異やこれらを据付ける床面の平面度などから起こり得るものである。   If the distance between the first bus bushing 5a and the second bus bushing 5b is different from the length of the central conductor 11 of the insulated bus 6, as shown in FIG. 5, at least one bolt 14 and the screw portion 9b are The bolts 14 are not matched and the bolts 14 cannot be tightened. This can occur due to the difference in the outer shape of the first box 3a and the second box 3b, the flatness of the floor surface on which these are installed, and the like.

このようになると、中心導体１１を加工して、第１の母線ブッシング５ａと第２の母線ブッシング５ｂ間の距離に合わせたり、また、第１の天井板４ａと第２の天井板４ｂとの位置を微調整して、第１の母線ブッシング５ａと第２の母線ブッシング５ｂ間の距離を合わせたりしていた。   In this case, the center conductor 11 is processed to match the distance between the first bus bar bushing 5a and the second bus bar bushing 5b, or between the first ceiling plate 4a and the second ceiling plate 4b. The position was finely adjusted to adjust the distance between the first bus bushing 5a and the second bus bushing 5b.

このため、盤間の絶縁母線６の接続においては、中心導体１１の孔１５ａ（１５ｂ）を加工したり、天井板４ａ、４ｂの位置を微調整したりしなくてはならず、多大の時間が必要となり、困難な接続作業となっていた。   For this reason, in connecting the insulating bus 6 between the panels, it is necessary to process the holes 15a (15b) of the central conductor 11 and finely adjust the positions of the ceiling plates 4a and 4b, which requires a great deal of time. It was necessary and was a difficult connection work.

本発明は上記問題を解決するためになされたもので、盤間の接続を容易にし得る母線接続装置を提供することを目的とする。   The present invention has been made to solve the above problems, and an object of the present invention is to provide a busbar connection device that can facilitate connection between boards.

上記目的を達成するために、本発明の母線接続装置は、一方の盤に固定された第１の母線ブッシングと、前記第１の母線ブッシングと対向して配置されるとともに、他方の盤に固定された第２の母線ブッシングと、前記第１の母線ブッシングと前記第２の母線ブッシング間を接続する可撓導体を有する絶縁母線と、前記第１の母線ブッシングと前記絶縁母線の一方端、および前記第２の母線ブッシングと前記絶縁母線の他方端のそれぞれの外周を絶縁する押えカバーとを備え、前記可撓導体は、少なくとも一方端の軸方向に凹部を設けた中心導体と、この凹部に接触子を介して挿入された接続導体と、前記凹部の底部と前記接続導体端間に前記接続導体を押し出すように付勢されたバネとで構成されていることを特徴とする。 In order to achieve the above object, a busbar connecting device according to the present invention is arranged so as to face a first busbar bushing fixed to one board, the first busbar bushing, and fixed to the other board. A second bus bushing, an insulating bus having a flexible conductor connecting between the first bus bushing and the second bus bushing, one end of the first bus bushing and the insulating bus, and A second cover having a pressing cover that insulates the outer periphery of each of the other ends of the insulating bus, and the flexible conductor includes a central conductor provided with a recess in the axial direction of at least one end; The connection conductor is inserted through a contact, and a spring biased to push out the connection conductor between the bottom of the recess and the connection conductor end .

本発明によれば、盤間を接続する絶縁母線の中心導体に軸方向に移動自在の接続導体を設けているので、一方の盤と他方の盤との母線ブッシングの主回路間の接続作業が容易となる。   According to the present invention, since the axially movable connecting conductor is provided in the central conductor of the insulated bus connecting the boards, the connection work between the main circuits of the bus bushings between the one board and the other board can be performed. It becomes easy.

以下、図面を参照して本発明の実施例を説明する。   Embodiments of the present invention will be described below with reference to the drawings.

先ず、本発明の実施例１に係る母線接続装置を図１および図２を参照して説明する。図１は、本発明の実施例１に係る母線接続装置の構成を一部断面して示す図、図２は、本発明の実施例１に係る母線接続装置の接続方法を示す図である。なお、図１および図２において、従来と同様の構成部分については、同一符号を付した。また、母線接続装置が設置されるスイッチギヤの構成は、図４と同様であるので、その説明を省略する。   First, a busbar connection device according to Embodiment 1 of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a partial cross-sectional view of the configuration of the busbar connection device according to the first embodiment of the present invention, and FIG. 2 is a diagram illustrating a connection method of the busbar connection device according to the first embodiment of the present invention. In FIG. 1 and FIG. 2, the same reference numerals are given to the same components as those in the prior art. Further, the configuration of the switchgear in which the busbar connection device is installed is the same as that in FIG.

図１に示すように、母線接続装置１は、第１の母線ブッシング５ａと第２の母線ブッシング５ｂ、および絶縁母線６から構成されている。   As shown in FIG. 1, the busbar connection device 1 includes a first busbar bushing 5 a, a second busbar bushing 5 b, and an insulating busbar 6.

第１の母線ブッシング５ａおよび第２の母線ブッシング５ｂには、それぞれ円柱状の埋め込み導体７ａ、７ｂが埋め込まれており、その露出部の互いは対向して配置されている。そして、埋め込み導体７ａ、７ｂの露出部は、それぞれ図示上向きの段差部８ａ、８ｂに形成され、ネジ部９ａ、９ｂが設けられている。また、母線ブッシング５ａ、５ｂには、それぞれ凸状のテーパー状の界面接続部１０ａ、１０ｂが形成されている。   Columnar embedded conductors 7a and 7b are embedded in the first bus bushing 5a and the second bus bushing 5b, respectively, and the exposed portions thereof are arranged to face each other. The exposed portions of the embedded conductors 7a and 7b are formed in stepped portions 8a and 8b facing upward in the drawing, respectively, and are provided with screw portions 9a and 9b. The bus-line bushings 5a and 5b are respectively formed with convex tapered interface connecting portions 10a and 10b.

絶縁母線６には、円柱状の中心導体１１の周りに、例えばポリエチレン樹脂やエポキシ樹脂のような絶縁材料をモールドして形成した絶縁層１２が設けられている。中心導体１１の少なくとも一方の端部は、略軸心部が凹部１１ａに形成されている。   The insulating bus 6 is provided with an insulating layer 12 formed by molding an insulating material such as polyethylene resin or epoxy resin around a cylindrical central conductor 11. At least one end of the center conductor 11 has a substantially axial center formed in the recess 11a.

この凹部１１ａには、接続導体２０の一方端が摺動形の接触子２１を介して挿入されている。また、凹部１１ａの底部と挿入された接続導体２０の一方端間には、接続導体２０を押し出すように付勢されたバネ２２が設けられている。接続導体２０の他方端には、前記埋め込み導体７ａ（７ｂ）の段差部８ａ（８ｂ）に嵌め込まれるような図示下向きの段差部２３に形成され、ボルト１４が挿入される孔２４が設けられている。   One end of the connection conductor 20 is inserted into the recess 11 a via a sliding contact 21. Further, a spring 22 biased so as to push out the connection conductor 20 is provided between the bottom of the recess 11a and one end of the connection conductor 20 inserted. The other end of the connecting conductor 20 is provided with a hole 24 into which a bolt 14 is inserted, which is formed in a downwardly-facing step 23 shown in the figure so as to be fitted into the step 8a (8b) of the embedded conductor 7a (7b). Yes.

ここで、接続導体２０は、バネ２２により中心導体１１端から移動自在に突出、後退の移動ができるとともに、接触子２１を介して良好な接続が行われている。このため、接続導体２０、中心導体１１、バネ２２および接触子２１から構成される主回路を可撓導体と定義する。   Here, the connection conductor 20 can be slidably moved from the end of the center conductor 11 by a spring 22 and moved backward, and a good connection is made through the contact 21. For this reason, the main circuit comprised of the connection conductor 20, the central conductor 11, the spring 22 and the contact 21 is defined as a flexible conductor.

一方、絶縁層１２の両端には、ＥＰゴムのような絶縁ゴムからなる押えカバー１６ａ、１６ｂがそれぞれ設けられている。また、それぞれの押えカバー１６ａ、１６ｂの端部には、凹状のテーパー状の界面接続部１７ａが形成されており、母線ブッシング５ａ、５ｂの界面接続部１０ａ（１０ｂ）と密着し、絶縁されるようになっている。   On the other hand, presser covers 16a and 16b made of insulating rubber such as EP rubber are provided at both ends of the insulating layer 12, respectively. In addition, a concave tapered interface connecting portion 17a is formed at the end of each presser cover 16a, 16b, and is in close contact with and insulated from the interface connecting portion 10a (10b) of the bus bushings 5a, 5b. It is like that.

そして、絶縁母線６を第１の母線ブッシング５ａと第２の母線ブッシング５ｂ間に接続する場合を図２を参照して説明する。   A case where the insulating bus 6 is connected between the first bus bushing 5a and the second bus bushing 5b will be described with reference to FIG.

先ず、埋め込み導体７ａ、７ｂの上向きの段差部８ａ、８ｂに合わせて、中心導体１１の段差部１３ｂと接続導体２０の段差部２３とを下向きにする。そして、接続導体２０の段差部２３を埋め込み導体７ａの段差部８ａに図示上方から当てがいバネ２２を圧縮させる。これにより、接続導体２０と中心導体１１とを合わせた長さが一旦短くなる。なお、バネ２２を圧縮した状態では、接続導体２０と中心導体１１とを合わせた長さが、埋め込み導体７ａ、７ｂ間の長さよりも僅かに短くなるようにしている。   First, the stepped portion 13b of the center conductor 11 and the stepped portion 23 of the connecting conductor 20 are directed downward in accordance with the upward stepped portions 8a and 8b of the embedded conductors 7a and 7b. Then, the spring 22 is compressed by applying the step 23 of the connecting conductor 20 to the step 8a of the embedded conductor 7a from above. As a result, the combined length of the connection conductor 20 and the center conductor 11 is temporarily shortened. When the spring 22 is compressed, the combined length of the connection conductor 20 and the center conductor 11 is set to be slightly shorter than the length between the embedded conductors 7a and 7b.

接続導体２０と中心導体１１とを合わせた長さを短くした状態を保って、埋め込み導体７ｂの段差部８ｂに、中心導体１１の段差部１３ｂを載せる。そして、バネ２２を放勢すると、バネ２２のバネ力で接続導体２０が凹部１１ａ内から押し出され、接続導体２０の孔２４とネジ部９ａとの中心軸を一致させることができる。また、中心導体１１の孔１５ｂとネジ部９ｂとの中心軸も一致させることができる。即ち、中心導体１１と接続導体２０とを合わせた長さを母線ブッシング５ａ、５ｂ間の長さと一致させることができる。   The stepped portion 13b of the central conductor 11 is placed on the stepped portion 8b of the embedded conductor 7b while keeping the length of the connecting conductor 20 and the central conductor 11 being shortened. When the spring 22 is released, the connecting conductor 20 is pushed out of the recess 11a by the spring force of the spring 22, and the center axis of the hole 24 of the connecting conductor 20 and the screw portion 9a can be made to coincide. Moreover, the center axis | shaft of the hole 15b of the center conductor 11 and the screw part 9b can also be made to correspond. That is, the total length of the center conductor 11 and the connection conductor 20 can be made to coincide with the length between the bus bar bushings 5a and 5b.

次に、接続導体２０の孔２４および中心導体１１の孔１５ｂにボルト１４を入れ、ネジ部９ａ、９ｂに締め込み、埋め込み導体７ａと接続導体２０、および埋め込み導体７ｂと中心導体１１とを強固に固定する。   Next, bolts 14 are inserted into the holes 24 of the connection conductor 20 and the holes 15b of the center conductor 11 and tightened into the screw portions 9a and 9b to firmly connect the embedded conductor 7a and the connection conductor 20, and the embedded conductor 7b and the center conductor 11. Secure to.

そして、図示左側の一方の押えカバー１６ａを図示左方向に移動させ、第１の母線ブッシング５ａの界面接続部１０ａと押えカバー１６ａの界面接続部１７ａとを密着させる。同様に、図示右側の他方の押えカバー１６ｂを図示右方向に移動させ、第２の母線ブッシング５ｂの界面接続部１０ｂと押えカバー１６ｂの界面接続部とを密着させる。   Then, one presser cover 16a on the left side in the figure is moved in the left direction in the figure, and the interface connecting part 10a of the first bus bushing 5a and the interface connecting part 17a of the presser cover 16a are brought into close contact with each other. Similarly, the other presser cover 16b on the right side in the figure is moved in the right direction in the figure, and the interface connecting part 10b of the second bus bar bushing 5b and the interface connecting part of the presser cover 16b are brought into close contact with each other.

これにより、第１の母線ブッシング５ａと第２の母線ブッシング５ｂ間に絶縁母線６を確実に接続することができる。また、接触子２１により、良好な通電が行えるとともに、第１の母線ブッシング５ａと第２の母線ブッシング５ｂ間の、例えば数ｍｍ程度の僅かな上下、左右の寸法を吸収することができる。   Thereby, the insulated bus 6 can be reliably connected between the first bus bushing 5a and the second bus bushing 5b. Further, the contactor 21 can perform good energization and can absorb slight vertical and horizontal dimensions of, for example, several millimeters between the first bus bushing 5a and the second bus bushing 5b.

上記実施例１の母線接続装置１によれば、盤間を接続する中心導体１１端に、軸方向に移動自在の接続導体２０を設けているので、第１の箱体３ａ（一方の盤）に固定した第１の母線ブッシング５ａと第２の箱体３ｂ（他方の盤）に固定した第２のブッシング５ｂ間の接続作業を容易にすることができる。   According to the busbar connection device 1 of the first embodiment, since the connecting conductor 20 that is movable in the axial direction is provided at the end of the central conductor 11 that connects the boards, the first box 3a (one board). The connection between the first bus bushing 5a fixed to the second bushing 5b fixed to the second box 3b (the other panel) can be facilitated.

次に、本発明の実施例２に係る母線接続装置を図３を参照して説明する。図３は、本発明の実施例２に係る母線接続装置の構成を一部断面して示す図である。なお、この実施例２が実施例１と異なる点は、接続導体の接続方法である。図３において、実施例１と同様の構成部分においては、同一符号を付し、その詳細な説明を省略する。   Next, a busbar connection device according to Embodiment 2 of the present invention will be described with reference to FIG. FIG. 3 is a partial cross-sectional view of the configuration of the busbar connection device according to the second embodiment of the present invention. The second embodiment differs from the first embodiment in the connection conductor connection method. In FIG. 3, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

図３に示すように、第１の母線ブッシング５ａと第２の母線ブッシング５ｂとの少なくとも一方には、円柱状の埋め込み導体３０ａが埋め込まれている。そして、埋め込み導体３０ａが露出した端部には、略軸心部に凹部３１が設けられ、この凹部３１の内周面に摺動形の接触子３２が設けられている。   As shown in FIG. 3, a cylindrical embedded conductor 30a is embedded in at least one of the first bus bushing 5a and the second bus bushing 5b. A recessed portion 31 is provided in the substantially axial center portion at the end portion where the embedded conductor 30a is exposed, and a sliding contact 32 is provided on the inner peripheral surface of the recessed portion 31.

絶縁母線６の中心導体１１端の凹部１１ａには、接触子２１を介して円柱状の接続導体３３が設けられている。また、接続導体３３の一方端と凹部１１ａの底部間には、バネ２２が設けられている。接続導体３３の他方端は、母線ブッシング５ａの凹部３１に挿入できるようになっている。   A cylindrical connection conductor 33 is provided via a contact 21 in the recess 11 a at the end of the central conductor 11 of the insulated bus 6. A spring 22 is provided between one end of the connection conductor 33 and the bottom of the recess 11a. The other end of the connecting conductor 33 can be inserted into the recess 31 of the bus bushing 5a.

そして、絶縁母線６の接続においては、先ず、第１の母線ブッシング５ａの凹部３１に接続導体３３を押し込んでバネ２２を圧縮させ、中心導体１１と接続導体３３とを合わせた長さを一旦短くする。次いで、第２の母線ブッシング５ｂ側の段差部８ｂ、１３ｂを一致させ、ボルト１４を締付ける。バネ２２を放勢すると、接続導体３３は、バネ力で凹部３１内を移動し、埋め込み導体３０ａと良好な接触状態となる。   In connecting the insulated bus 6, first, the connecting conductor 33 is pushed into the recess 31 of the first bus bushing 5 a to compress the spring 22, and the combined length of the central conductor 11 and the connecting conductor 33 is once shortened. To do. Next, the step portions 8b and 13b on the second bus bushing 5b side are made to coincide with each other, and the bolt 14 is tightened. When the spring 22 is released, the connection conductor 33 moves in the recess 31 with a spring force and is in good contact with the embedded conductor 30a.

ここで、接続導体３３は、バネ２２により中心導体１１端から移動自在に移動できるとともに、接触子２１を介して良好な接続が行われている。このため、接続導体３３、中心導体１１、バネ２２および接触子２１から構成される主回路を可撓導体と定義する
上記実施例１の母線接続装置１によれば、実施例１による効果のほかに、ボルト１４の締付け作業を減じることができるので、接続作業が容易となる。 Here, the connection conductor 33 is movably movable from the end of the center conductor 11 by the spring 22 and is well connected via the contactor 21. For this reason, according to the busbar connection device 1 of the first embodiment in which the main circuit composed of the connection conductor 33, the central conductor 11, the spring 22 and the contact 21 is defined as a flexible conductor, in addition to the effects of the first embodiment. In addition, since the tightening work of the bolts 14 can be reduced, the connecting work is facilitated.

本発明の実施例１に係る母線接続装置の構成を一部断面して示す図。The figure which shows the structure of the bus-line connection apparatus which concerns on Example 1 of this invention partially partially. 本発明の実施例１に係る母線接続装置の接続方法を示す図。The figure which shows the connection method of the bus-line connection apparatus which concerns on Example 1 of this invention. 本発明の実施例２に係る母線接続装置の構成を一部断面して示す図。The figure which shows the structure of the bus-line connection apparatus which concerns on Example 2 of this invention partially partially, and shows it. スイッチギヤの構成を示す側面図。The side view which shows the structure of a switchgear. 従来の母線接続装置の構成を一部断面して示す図。The figure which shows the structure of the conventional bus-bar connection apparatus partially in cross section.

符号の説明Explanation of symbols

１ 絶縁母線装置
２ａ 第１の電気機器
２ｂ 第２の電気機器
３ａ 第１の箱体
３ｂ 第２の箱体
３ｃ 第３の箱体
４ａ 第１の天井板
４ｂ 第２の天井板
５ａ 第１の母線ブッシング
５ｂ 第２の母線ブッシング
６ 絶縁母線
７ａ、７ｂ、３０ａ 埋め込み導体
８ａ、８ｂ、１３ａ、１３ｂ、２３ 段差部
９ａ、９ｂ ネジ部
１０ａ、１０ｂ、１７ａ 界面接続部
１１ 中心導体
１１ａ、３１ 凹部
１２ 絶縁層
１４ ボルト
１５ａ、１５ｂ、２４ 孔
１６ａ、１６ｂ 押えカバー
２０、３３ 接続導体
２１、３２ 接触子
２２ バネ DESCRIPTION OF SYMBOLS 1 Insulated bus-line apparatus 2a 1st electric equipment 2b 2nd electric equipment 3a 1st box 3b 2nd box 3c 3rd box 4a 1st ceiling board 4b 2nd ceiling board 5a 1st Bus bar bushing 5b Second bus bar bushing 6 Insulated bus bars 7a, 7b, 30a Embedded conductors 8a, 8b, 13a, 13b, 23 Stepped portions 9a, 9b Screw portions 10a, 10b, 17a Interface connection portion 11 Central conductors 11a, 31 Recessed portion 12 Insulating layer 14 Bolts 15a, 15b, 24 Holes 16a, 16b Presser cover 20, 33 Connection conductor 21, 32 Contact 22 Spring

Claims (2)

一方の盤に固定された第１の母線ブッシングと、
前記第１の母線ブッシングと対向して配置されるとともに、他方の盤に固定された第２の母線ブッシングと、
前記第１の母線ブッシングと前記第２の母線ブッシング間を接続する可撓導体を有する絶縁母線と、
前記第１の母線ブッシングと前記絶縁母線の一方端、および前記第２の母線ブッシングと前記絶縁母線の他方端のそれぞれの外周を絶縁する押えカバーとを備え、
前記可撓導体は、少なくとも一方端の軸方向に凹部を設けた中心導体と、
この凹部に接触子を介して挿入された接続導体と、
前記凹部の底部と前記接続導体端間に前記接続導体を押し出すように付勢されたバネとで構成されていることを特徴とする母線接続装置。 A first bus bushing fixed to one board;
A second bus bushing disposed opposite to the first bus bushing and fixed to the other board;
An insulating bus having a flexible conductor connecting between the first bus bushing and the second bus bushing;
A presser cover that insulates the outer periphery of each of the first bus bushing and one end of the insulated bus, and the second bus bushing and the other end of the insulated bus,
The flexible conductor has at least a central conductor provided with a recess in the axial direction of one end;
A connection conductor inserted into the recess through a contact,
A busbar connection device comprising: a bottom portion of the recess and a spring biased to push out the connection conductor between the connection conductor ends . 前記母線ブッシングおよび前記押えカバーには、互いにテーパー状の界面接続部が形成されていることを特徴とする請求項１に記載の母線接続装置。 Wherein the bus bushing and the pressing cover, bus connection device as claimed in claim 1, characterized in that the interface connecting portion tapered to each other are formed.
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS539856Y1 (en) * 1975-09-25 1978-03-15
JPH0164904U (en) * 1987-10-20 1989-04-26
JPH01137579A (en) * 1987-11-24 1989-05-30 Toshiba Corp Connection of insulated bus bar
JPH0439008U (en) * 1990-07-31 1992-04-02
JPH0464913U (en) * 1990-10-11 1992-06-04
JP2002152930A (en) * 2000-11-14 2002-05-24 Toshiba Corp Closed type switchgear

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS539856Y1 (en) * 1975-09-25 1978-03-15
JPH0164904U (en) * 1987-10-20 1989-04-26
JPH01137579A (en) * 1987-11-24 1989-05-30 Toshiba Corp Connection of insulated bus bar
JPH0439008U (en) * 1990-07-31 1992-04-02
JPH0464913U (en) * 1990-10-11 1992-06-04
JP2002152930A (en) * 2000-11-14 2002-05-24 Toshiba Corp Closed type switchgear

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