JPH0668239U - Electrical equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] The bushing of an electric device can be fixed along the wall surface of a container to reduce the outer dimensions of the electric device during transportation and prevent the bushing from being damaged. [Structure] A seat plate 13 for closing a through hole 19 provided on an outer wall of a container 11 is rotatably provided on a container outer wall via a hinge 14, and an electric device 31 is constructed by penetrating a bushing 12 into the seat plate 13. is doing. At the time of transportation, the bushing 12 is rotated to be fixed to the outer wall of the container 11 so that the outer dimensions can be made small, and the bushing 12 can be prevented from being damaged and the assembly and adjustment at the destination can be simplified.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electric device such as a transformer and a switch, and more particularly to an electric device having a bushing that penetrates a container.

[0002]

[Prior art]

 In general, electric equipment has a bushing penetrating a container to electrically connect the inside and the outside of a sealed container.

3 and 4 show such a conventional electric device, FIG. 3 shows an outer shape of the electric device to which a bushing is attached, and FIG. 4 is an enlarged view of the bushing attachment portion (B portion) of FIG. Is shown.

In FIG. 3, reference numeral 31 is an electric device, which is attached to the container 11 through the bushing 12. Reference numeral 32 denotes an external terminal at the tip of the bushing 12. When the bushing 12 is installed in the container 11 of the electric device 31, the maximum external dimension of the electric device 31 is one end of the pedestal 33 and the bushing 12 as shown in FIG. The dimension L up to the tip of the external terminal 32 is obtained.

Further, as shown in FIG. 4, the bushing 12 has a flange 41 of the bushing 12 attached to a bushing attachment seat 42 fixed to the side wall of the container 11 of the electric device 31 with bolts 43.

[0006]

[Problems to be solved by the device]

 When the electric equipment 31 is transported to a local installation location, the maximum external dimension L of the electric equipment 31 can be made as small as possible due to restrictions such as road transportation size restrictions and the size of the carry-in entrance at the installation location. It is commonly done.

However, when a large electric device 31 having a protruding portion such as the bushing 12 is transported from a factory to a destination, in addition to the above-described size restrictions, safety and product quality maintenance are ensured. For this reason, it is common practice to remove items that largely project from the main unit and transport them after removing them from the main unit.

In the case of disassembling and transporting in this way, it is necessary to remove the electric device main body and the bushing 12 itself which is the projecting portion and separately package it, and also to reassemble and reassemble at the destination (local). Adjustment is required and a lot of man-hours are required.

In view of the above points, the present invention eliminates the protrusion by attaching the hinge 14 to a protrusion such as a bushing and fixing the hinge 14 along the outer wall of the main body container to eliminate the protrusion. The purpose of the electrical equipment is to reduce the maximum external dimensions, facilitate transportation, and reduce the number of man-hours such as assembly and adjustment at the site.

[0010]

[Means for Solving the Problems]

 The electric device of the present invention is an electric device in which a through hole is provided in the outer wall of a container of the electric device, and a bushing is provided through the through hole, and a seat plate capable of closing the through hole is provided with a hinge. The container is rotatably provided on the outer wall of the container, the bushing is provided through the seat plate, and the fixture that rotates together with the seat plate is held and fixed along the outer wall of the container. It is provided on the outer wall surface.

[0011]

[Action]

 With the above-described structure, the bushing protruding from the main body of the electric device can be rotated and fixed along the wall of the container, so that the outer dimensions of the electric device can be reduced. Therefore, it is not necessary to remove the bushing and pack it separately during transportation. Furthermore, the problems of bushing damage due to the use of cranes at the destination and the work at high places, etc. will be eliminated, assembly and adjustment will be simplified, and the overall man-hours will be reduced, reducing costs.

[0012]

【Example】

 The present invention will be described based on the embodiment shown in FIGS. It is to be noted that the components denoted by the same reference numerals as those in FIG. 3 and FIG. 4 described above indicate the equivalent products, and thus detailed description thereof will be omitted.

Reference numeral 11 denotes a container of the electric device 31, which has a through hole 19 through which the bushing 12 passes. The bushing 12 penetrates and is fixed to the seat plate 13. 2 is a view from the arrow A of FIG. 1, as shown in this figure, the seat plate 13 is a rectangular plate, and one movable piece 14a of the hinge 14 is fixed to one side (upper side in the figure) of the seat plate 13. The other movable piece 14b of the hinge 14 is fixed to the container 11 of the electric device 31. On the other side (lower side in the figure) of the seat plate 13, a plurality of (two in the embodiment) through holes 21 for allowing the bolts 16 to pass are provided.

A hole 19 is provided in the container 11 at a position corresponding to the through hole 21 of the seat plate 13, and a weld nut 17 is fixedly attached to the inner wall surface of the container 11, and a bolt 16 is attached to the weld nut 17. Is fastened to fix the seat plate 13.

Next, a state in which the electric device 31 is transported will be described. The bolt 16 is removed, and the bushing 12 and the seat plate 13 are rotated 90 degrees counterclockwise (upward in the figure) through the hinge 14 to engage the external terminal 32 side of the bushing 12 with the fixture 15. So fix it. By fixing the bushing 12 along the outer wall of the container 11 in this way, the maximum external size of the electric device 31 can be reduced.

In the above-described embodiment, the case where the bushing 12 is provided on the side wall of the container 11 of the electric device 31 has been described, but the present invention is not limited to this, and the bushing 12 is erected on the upper wall of the container 11. Even if it is a thing, it can implement similarly and can obtain the same effect.

When it is necessary to keep the inside of the electric device 31 sealed, a packing 18 made of an elastic body is attached around the seat plate 13 and the container 11 to keep the sealed state.

[0018]

[Effect of device]

 In the electric device 31 of the present invention, a seat plate 13 for closing a through hole 19 provided on the outer wall of the container 11 is rotatably provided on the outer wall of the container via a hinge 14, and the bushing 12 is penetrated through the seat plate 13. It is formed. Therefore, during transportation, the bushing 12 can be along the wall surface of the container 11 via the seat plate 13 and the hinge 14, and can be temporarily fixed to the wall of the container 11 by the fixture 15, so that the bushing 12 can be largely projected from the electric device 31. The outer dimensions can be made smaller by eliminating the parts to be used.

Further, it is not necessary to remove the bushing 12 at the time of transportation, and the removing work and the packing work of the removed parts are unnecessary. Furthermore, reassembling at the delivery destination and the accompanying adjustment are not required, which contributes to the reduction of the total man-hours and has the effect of reducing the cost.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of an electric device according to an embodiment of the present invention.

FIG. 2 is a view on arrow A in FIG.

FIG. 3 is a schematic view of a conventional electric device.

FIG. 4 is a detailed view of part B of FIG.

[Explanation of symbols]

11 is a container, 12 is a bushing, 13 is a seat plate, 14 is a hinge, and 15 is a fixture.

Claims (1)

[Scope of utility model registration request] 1. An electric device in which a through hole is provided in an outer wall of a container of the electric device and a bushing is provided through the through hole,
A seat plate capable of closing the through hole is rotatably provided on the outer wall of the container through a hinge, the bushing is provided through the seat plate, and the bushing is rotated together with the seat plate to rotate the outer wall of the container. An electric device characterized in that a fixing tool for holding and fixing in a state of being fitted to the container is provided on the outer wall surface of the container.