JP2591420Y2 - Electrical equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention 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 penetrating a container.

[0002]

2. Description of the Related Art Generally, an electric device is provided with a bushing penetrating through a container in order to electrically connect the inside and outside of a closed container.

FIGS. 3 and 4 show such a conventional electric device. FIG. 3 shows the outer shape of the electric device to which a bushing is mounted. FIG. 4 shows the bushing mounting portion (part B) of FIG.
It shows an enlarged view.

In FIG. 3, reference numeral 31 denotes an electric device,
1 is attached through a 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 gantry 33 as shown in FIG. Dimension L up to the tip of the external terminal 32
become that way.

[0005] As shown in FIG.
The flange 41 of the bushing 12 is mounted on a bushing mounting seat 42 fixed to the side wall of the container 11 of the electric device 31 with a bolt 43.

[0006]

[Problem to be Solved by the Invention] When the electric equipment 31 is transported to a local installation place, the maximum outer dimension L of the electric equipment 31 is determined by restrictions such as a transportation dimension restriction on a road and a size of a carry-in entrance at the installation place. It is common practice to minimize the external dimensions.

However, when transporting a large-sized electric device 31 having a projecting portion such as the bushing 12 from a factory to a destination, in addition to the above-described dimensional restrictions, safety and quality maintenance of the product are required. For this reason, it is common practice to remove objects protruding from the main body from the main body and transport them.

[0008] In the case of disassembling and transporting in this manner, it is necessary to remove the electric equipment main body and the bushing 12 itself, which is a protruding portion, and pack it separately, and it is necessary to reassemble and readjust at the destination (on site). It becomes necessary and takes a lot of man-hours.

In view of the above, the present invention attaches a hinge 14 to a projecting object such as a bushing and fixes it with a fixture 15 along the outer wall of the main body container. The purpose of the present invention is to obtain an electric device that has a reduced maximum external dimension, facilitates transportation, and reduces man-hours for on-site assembly and adjustment.

[0010]

The electric device according to the present invention is 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 in the through hole, and the through hole can be closed. a seat plate via a hinge provided rotatably the container outer wall, provided through the bushing in the seat plate, and the bushing in a state of and along the container outer wall by rotating together with the seat plate A fixing tool for holding and fixing the external terminal side is provided on the outer wall surface of the container.

[0011]

With the above construction, the bushing projecting from the electric device main body can be rotated and fixed along the wall of the container, so that the external dimensions of the electric device can be reduced. Therefore, it is not necessary to remove the bushing at the time of transportation and pack it separately. Also, the bushing
A fixture for holding and fixing the external terminal side is provided on the outer wall of the container.
The components are designed for vibration and shock resistance during transfer.
Up. In addition, there are no problems such as the use of the crane at the carry-in destination and the breakage of the bushing accompanying the work at a high place, and the assembly and adjustment are simplified, thereby contributing to a reduction in the number of man-hours and reducing the cost.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the embodiments shown in FIGS. Note that the components denoted by the same reference numerals as those in FIG. 3 and FIG. 4 described above indicate the same products, and therefore detailed description thereof will be omitted.

Reference numeral 11 denotes a container of the electric device 31 having a through hole 19 through which the bushing 12 passes. Bushing 1
2 penetrates the seat plate 13 and is fixed. FIG. 2 is a view taken in the direction of arrow A in FIG. 1, and 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 hinge plate. The other movable piece 14 b of 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 through which the bolt 16 passes 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 provided on the inner wall surface of the container 11. To fix the seat plate 13.

Next, a state in which the electric equipment 31 is transported will be described. The bolt 16 is removed, the bushing 12 and the seat plate 13 are rotated counterclockwise by 90 degrees (upward in the figure) via the hinge 14, and the external terminal 32 side of the bushing 12 is engaged with the fixture 15 to be fixed. I do. By fixing the bushing 12 along the outer wall of the container 11 in this manner, the maximum external dimensions of the electric device 31 can be reduced , and the external terminal 32 side is fixed by the fixing device 15.
This allows the bushing 12 to be fixed during transportation,
And to improve the impact resistance and prevent parts loss.
it can.

In the above 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. However, the present invention is not limited to this, and the bushing 12 is provided upright on the upper wall of the container 11. The present invention can also be implemented in the same manner, and the same effects can be obtained.

When it is necessary to keep the inside of the electric device 31 tight, the packing can be maintained by providing a packing 18 made of an elastic material around the seat plate 13 and the container 11.

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. Is formed so as to penetrate through. Therefore, the seat plate 1
3. The bushing 12 can be made to follow the wall surface of the container 11 at the time of transportation via the hinge 14 and can be temporarily fixed to the wall of the container 11 by the fixing device 15, so that a portion that largely protrudes from the electric device 31 is eliminated, and Of the bushing 12 during transportation,
And impact resistance can be improved.

Further, it is not necessary to remove the bushing 12 at the time of transportation, so that the work of removing the bushing 12 and the work of packing the removed parts become unnecessary. Further, re-assembly at the loading destination and associated adjustment are not required, which contributes to a reduction in the number of man-hours and an effect of reducing costs.

[Brief description of the drawings]

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

FIG. 2 is a view taken in the direction of arrow A in FIG. 1;

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

FIG. 4 is a detailed view of a portion B in FIG. 3;

[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)

(57) [Scope of request for utility model registration] 1. An electric device, wherein a through hole is provided in an outer wall of a container of the electric device, and a bushing is provided in the through hole.
A seat plate capable of closing the through-hole is rotatably provided on the outer wall of the container via a hinge, and 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 the external terminal side is provided on the outer wall surface of the container in a state in which the external terminal side is arranged along the outer terminal .