JPS5852828Y2 - bus duct - Google Patents

Description

【考案の詳細な説明】 この考案は可撓性導体を隔離絶縁する絶縁バリアの取付
は構造を改良したバスダクトに関する。[Detailed Description of the Invention] This invention relates to a bus duct having an improved structure in which an insulating barrier for isolating and insulating flexible conductors is installed.

バスダクト内に設置された母線から分岐されて各機器に
至る間の導体は可撓性のものが用いられ、したがって各
相の導体は何れかの方法で絶縁されなければならない。Flexible conductors are used to branch from the bus bar installed in the bus duct and reach each device, so the conductors of each phase must be insulated by some method.

従来この絶縁は可撓性導体に絶縁チューブを被せて絶縁
する構造と、可撓性導体の相間に絶縁バリアを設けて絶
縁する構造があった。Conventionally, there have been two types of insulation: one is a flexible conductor covered with an insulating tube, and the other is an insulating barrier between the flexible conductors.

前者すなわち絶縁チューブを被せて絶縁する構造の場合
は絶縁チューブが可撓性導体に被せられているため導体
の可撓性が損われたり、熱による焼損、絶縁性劣化の虞
れがあった。In the former case, that is, a structure in which the flexible conductor is covered with an insulating tube for insulation, there is a risk that the flexibility of the conductor may be impaired, burnout due to heat, and insulation deterioration may occur because the insulating tube is placed over the flexible conductor.

次に後者すなわち絶縁バリアを設けて絶縁する構造を第
１図および第２図により説明する。Next, the latter structure, that is, a structure in which insulation is provided by providing an insulation barrier, will be explained with reference to FIGS. 1 and 2.

図におけるバスダクト１の内部には母線２が内蔵されて
おり、この母線２から分岐して端子３への接続は可撓性
導体４によって行なわれる。A bus 2 is built into the bus duct 1 shown in the figure, and a flexible conductor 4 branches off from the bus 2 and connects it to a terminal 3.

可撓性導体４の各相（Ｒ相、Ｓ相、Ｔ相）間を隔離絶縁
するために絶縁バリア５が設けられるが、その取付けは
固定座６を介してバスダクト１側に固定される。An insulation barrier 5 is provided to isolate and insulate each phase (R phase, S phase, T phase) of the flexible conductor 4, and is fixed to the bus duct 1 side via a fixed seat 6.

１ａはバスダクト１に設けられた点検蓋で、その位置は
可撓性導体４の点検可能な個所に設けられる。Reference numeral 1a denotes an inspection cover provided on the bus duct 1, and the inspection cover 1a is provided at a location on the flexible conductor 4 that can be inspected.

この絶縁構造の場合前述の絶縁チューブ構造のような欠
点はなく、導体４の可撓性が失われることなく絶縁性の
劣化もない。This insulating structure does not have the disadvantages of the above-mentioned insulating tube structure, and the flexibility of the conductor 4 is not lost and the insulation does not deteriorate.

しかし図面で見られるごとく可撓性導体４と絶縁バリア
５と空間が狭いため、作業性が悪い。However, as seen in the drawings, the space between the flexible conductor 4 and the insulating barrier 5 is narrow, resulting in poor workability.

たとえば現地組立を行なう場合、まず点検蓋１ａを取外
し内部組立てを行なう際バスダクト１に予め取付は固定
されてあった絶縁バリア５を一旦取り外し、可撓性導体
の接続を行なったのち再度絶縁バリア５の取付けを行な
わねばならず、しかもその取付けは作業空間の少ない個
所で行なうので非常に困難であった。For example, when assembling on-site, first remove the inspection lid 1a, then remove the insulation barrier 5 that was previously fixed to the bus duct 1, connect the flexible conductor, and then reinstall the insulation barrier 5. However, it was very difficult to do so in a place with little work space.

本考案は上記の欠点を解消して導体相聞の絶縁性がよく
、導体の可撓性も保たれ、組立時の作業性のよい構造を
もったバスダクトを提供することを目的とする。The object of the present invention is to eliminate the above-mentioned drawbacks and provide a bus duct having a structure that has good insulation between conductors, maintains flexibility of the conductors, and has good workability during assembly.

本考案によれば上記の目的は、絶縁バリアにより隔離絶
縁された可撓性導体を収納し点検蓋を有するバスダクト
において、前記絶縁バリアを前記点検蓋の内側に固定し
た構造とすることにより達せられる。According to the present invention, the above object is achieved by, in a bus duct that houses flexible conductors isolated and insulated by an insulation barrier and has an inspection lid, the insulation barrier is fixed inside the inspection lid. .

以下この考案の実施例を第３図および第４図により説明
する。An embodiment of this invention will be described below with reference to FIGS. 3 and 4.

図において本考案による構造の改良点は絶縁バリア５Ａ
はバスダクト１の側に取付けないで、取付座６Ａを介し
て点検蓋１ａの内側に固定する構造とした。In the figure, the improvement of the structure according to the present invention is the insulation barrier 5A.
is not attached to the side of the bus duct 1, but is fixed to the inside of the inspection lid 1a via the mounting seat 6A.

その結果点検蓋１ａのバスダクト１への取付時は絶縁バ
リア５Ａは可撓性導体４の各相間に介在して隔離絶縁の
役目を果し、点検蓋１ａをバスダクト１より取外せば絶
縁バリア５Ａは点検蓋１ａと共に取外されて可撓性導体
４近辺の空間は広くなる。As a result, when the inspection lid 1a is attached to the bus duct 1, the insulation barrier 5A is interposed between each phase of the flexible conductor 4 and plays the role of isolation and insulation, and when the inspection lid 1a is removed from the bus duct 1, the insulation barrier 5A is removed together with the inspection lid 1a, and the space near the flexible conductor 4 becomes wider.

以上述べた構造で明らかなように導体相聞の絶縁性は従
来同様によく、導体の可撓性も保たれ、点検蓋を取外せ
ば共に絶縁バリアも取外されて可撓性導体近辺の空間は
広くなり組立時の作業性のよい構造をもったバスダクト
を提供することができる。As is clear from the structure described above, the insulation between the conductors is as good as before, and the flexibility of the conductor is maintained, and when the inspection cover is removed, the insulation barrier is also removed, and the space near the flexible conductor is maintained. It is possible to provide a bus duct with a structure that is wide and has good workability during assembly.

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

第１図は絶縁バリアを用いた従来構造のバスタクトの要
部を示す縦断面図、第２図は第１図における■−■線に
沿う横断面図、第３図は本考案の一実施例になる絶縁バ
リア取付構造のバスダクトの縦断面図、第４図は第３図
におけるＩＶ−ＩＶ線に沿う横断面図である。 １・・・バスダクト、１ａ・・・点検蓋、５，５Ａ・・
・絶縁バリア。Fig. 1 is a vertical cross-sectional view showing the main parts of a conventional bathtact using an insulating barrier, Fig. 2 is a cross-sectional view taken along the line ■-■ in Fig. 1, and Fig. 3 is an embodiment of the present invention. FIG. 4 is a longitudinal cross-sectional view of a bus duct having an insulation barrier mounting structure, and FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 3. 1...Bath duct, 1a...Inspection lid, 5,5A...
・Insulation barrier.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 母線に接続された可撓性導体を収納し点検蓋を有するバ
スダクトにおいて、前記点検蓋の内側に可撓性導体の相
互間を隔離絶縁する絶縁バリアを固定したことを特徴と
するバスダクト。A bus duct that houses flexible conductors connected to a bus bar and has an inspection lid, characterized in that an insulating barrier is fixed to the inside of the inspection lid to isolate and insulate the flexible conductors from each other.