JPH065332U - Insulated bus duct lateral T branch - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a T-branch in the lateral direction of an insulated bus duct that can be made compact and lightweight. [Structure] With respect to a plurality of phases of main line insulated bus ducts 1A to 1D arranged in parallel with their plate surfaces facing each other, corresponding branch line insulated bus ducts 1a to 1d are connected in a T-shape. In particular,
Branch line insulated bus ducts 1b to 1 existing in the same phase and separated from each other
d is connected by bridge connection plates B, C and the like. The bridge connecting plates B, C, etc., have their respective plate surfaces on each branch line insulated bus duct 1
It is provided so as to be orthogonal to the plate surfaces b to 1d.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lateral T-junction of an insulated bus duct used in buildings and factories.

[0002]

[Prior art]

 FIG. 8 shows a conventional insulated bus duct lateral T branch. As shown in the figure, the conventional insulated bus duct lateral T branch portion has a plurality of branch line insulated busses on the plate surfaces of a plurality of main line insulated bus ducts 1A, 1B, 1C arranged side by side with their plate surfaces facing each other. The ducts 1a, 1b, 1c are separated left and right by the presence of the other insulated bus duct 1a by connecting the other insulated bus duct 1a to the farthest trunk insulated bus duct 1A seen from the branching direction. The trunk line insulated bus ducts 1B and 1C are provided with a T-shape by bending the trunk line insulated bus ducts 1B and 1C, and the same phase branch line insulation is separated left and right due to the presence of the another insulated bus duct 1a. The bus ducts 1b and 1c are connected to each other by bridge connecting plates B and C that straddle the other insulated bus duct 1a. The bridge connecting plates B and C were provided with their plate surfaces oriented parallel to the plate surfaces of the mainline insulated bus ducts 1B and 1C. Incidentally, such an insulating bus duct lateral T branch portion is housed in a T-shaped box (not shown).

[0003]

[Problems to be solved by the device]

 In such a conventional insulated bus duct lateral T branch portion, the bridge connection plates B and C are provided so that their plate surfaces are oriented parallel to the plate surfaces of the trunk line insulated bus ducts 1B and 1C. There is a problem that the plates B and C project largely outward and the outer shape becomes large. Moreover, when the outer shape is large in this way, the box is also large, the total weight is large, and it is difficult to secure the installation space.

An object of the present invention is to provide an insulating bus duct lateral T branch that can be made smaller and lighter.

[0005]

[Means for Solving the Problems]

 To explain the structure of the present invention that achieves the above-mentioned object, the present invention relates to a plurality of phases of main line insulated bus ducts arranged side by side with their plate surfaces facing each other, and a corresponding branch line insulation bus duct of each phase is a T type. In the insulated bus duct lateral T branch portion, in which the insulating bus ducts that are connected to each other and are present in the same phase and separated from each other are connected by a bridge connecting plate, the bridge connecting plate has its plate surface at the insulating bus duct. It is characterized in that it is provided in a direction orthogonal to the plate surface of.

[0006]

[Action]

 In this way, when the bridge connecting plate is provided so that its plate surface is orthogonal to the plate surface of the insulating bus duct, the bridge connecting plate does not largely project outward, and the insulating bus duct lateral T branch portion is prevented. The size can be reduced. Also, the box body is downsized, the overall weight is reduced, and the installation space can be easily secured.

[0007]

【Example】

 1 to 4 show a first embodiment of a lateral T branch portion of an insulated bus duct according to the present invention. In this embodiment, a plurality of main line insulated bus ducts 1A, 1B, 1C, 1D are arranged in parallel with their plate surfaces facing each other. On the plate surface of such trunk line insulated bus ducts 1A, 1B, 1C, 1D, a plurality of branch line insulated bus ducts 1a, 1b, 1c, 1d are located farthest from the branching direction in relation to the trunk line insulated bus duct 1A. By connecting another insulated bus duct 1a, the trunk insulated bus ducts 1B, 1C and 1D are bent with respect to the trunk insulated bus ducts 1B, 1C and 1D which are separated from each other by the presence of the other insulated bus duct 1a. Is provided in a T-shape.

[0008] In-phase branch line insulated bus ducts 1b, 1c, 1d separated left and right by the presence of another insulated bus duct 1a are connected by bridge connection plates B, C, D that straddle another insulated bus duct 1a. . These bridge connection plates B, C, D are provided so that their plate surfaces are orthogonal to the plate surfaces of the branch line insulated bus ducts 1b, 1c, 1d.

Such an insulated bus duct lateral T branch is housed in a T-shaped box 2.

FIGS. 5 to 7 show a second embodiment of the lateral T branch portion of the insulated bus duct according to the present invention. The parts corresponding to those in FIGS. 1 to 4 described above are designated by the same reference numerals.

In this embodiment, the trunk insulated bus ducts 1A, 1B, 1C and 1D are convexly curved at the connection portions with the branch insulated bus ducts 1b, 1c and 1d. The connection ends of the branch line insulating bus ducts 1b, 1c, 1d are bent in an L shape, and the branch line insulating bus duct 1c is brought into contact with the trunk line insulating bus duct 1D in the curved concave portions of the trunk line insulating bus ducts 1A, 1B, 1C, 1D. ing.

The trunk line insulated bus duct 1A and the branch line insulated bus duct 1a are connected by a bridge connecting plate A on the lower side. The trunk line insulated bus duct 1B and the branch line insulated bus duct 1b are connected by a bridge connecting plate B on the upper side. The trunk line insulated bus duct 1C and the branch line insulated bus duct 1c are connected by a bridge connection plate C on the upper side. The branch line insulated bus duct 1d is T-shaped and welded to the innermost trunk line insulated bus duct 1D when viewed from the branching direction. Each of the bridge connection plates A to C is provided with its plate surface oriented perpendicular to the plate surfaces of the insulating bus ducts 1A to 1C and 1a to 1c.

Such an insulated bus duct lateral T branch portion is also accommodated in the T-shaped box 2.

[0014]

[Effect of device]

 As described above, in the insulated bus duct lateral T branch portion according to the present invention, the bridge connection plate is provided so that its plate surface is orthogonal to the plate surface of the insulated bus duct. Since it does not project outwards significantly, the lateral T branch portion of the insulating bus duct can be downsized. In addition, the box is downsized, and the total weight is reduced, and it is easy to secure the installation space.

[Brief description of drawings]

FIG. 1 is a plan view of an insulation bus duct lateral T branch portion according to a first embodiment of the present invention, which is shown across the box of the first embodiment.

FIG. 2 is a sectional view taken along line aa of FIG.

FIG. 3 is a sectional view taken along line bb of FIG.

FIG. 4 is a sectional view taken along line cc of FIG.

FIG. 5 is a plan view showing a second embodiment of the lateral T branch portion of the insulating bus duct according to the present invention in a manner crossing the box body thereof.

6 is a sectional view taken along line aa of FIG.

7 is a cross-sectional view taken along the line bb of FIG.

FIG. 8 is a perspective view of a conventional insulated bus duct lateral T branch portion.

[Explanation of symbols]

 1A to 1D Main line insulated bus duct 1a to 1d Branch line insulated bus duct 2 Box A to D Bridge connection plate

Claims (1)

[Scope of utility model registration request] 1. A branch-line insulated bus duct of each corresponding phase is connected in a T-shape with respect to a plurality of phases of the main-line insulated bus ducts arranged side by side with their plate surfaces facing each other. In the insulated bus duct lateral T branch portion configured by connecting the insulating bus duct with a bridge connecting plate, the bridge connecting plate is provided so that its plate surface is orthogonal to the plate surface of the insulating bus duct. Characteristic insulated bus duct lateral T branch.