JPH031889Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Background and Purpose of the Invention] The present invention relates to the structure of a power cable connection.

A conventional power cable connection with a Kohin box and a ground wire, as shown in FIG. 1, has the following disadvantages. That is, (1) the method of pulling out the ground wire from the Kohin box is to pull it out through the flange of the Kohin box, which requires waterproofing of the pull-out part, which is not an easy task; or
(2) The waterproofing method is affected by the degree of processing of the flange surface of the Kohin box, and (3) the actual situation is that a separate link box is used when attaching and detaching the grounding wire for maintenance management reasons.

SUMMARY OF THE INVENTION An object of the present invention is to provide a new power cable connection that can eliminate the drawbacks of the prior art described above, reduce costs, and facilitate maintenance and work methods.

[Summary of the invention] That is, the gist of the invention is to provide a cylindrical grounding wire connection embedded conductor 9 which has terminal receiving portions 91 and 92 on both sides and has a water-shielding wall 93 inside.
The terminal 12 of the grounding wire 6, which is sealed at any location other than the flange portion 4 of the Kohinbox main body 3 through the insulating mold 10 and has the terminal 12 attached to the tip thereof, is connected to the above terminal 12. The present invention is configured to be detachably connected to the terminal receiving portion 91 of the embedded conductor 9. Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings.

[Example] Fig. 2 is a longitudinal sectional front view showing an example of the present invention in which an embedded conductor unit 8 for connecting a grounding wire is provided in advance in the Kohin box main body 3 of the power cable connection part.
This figure is an enlarged vertical sectional view of an adjacent part showing an example of the embedded conductor unit in FIG. 2. As shown in FIG. 2, the power cable connecting portion of the present invention has a structure in which the embedded conductor unit 8 is attached to any location other than the flange portion 4 of the Kohin box. still,
Although the shape of the embedded conductor unit 8 is shown as a prismatic shape in FIG. 2, it is of course possible to have another shape, for example, a cylindrical shape.

Next, the embedded conductor 9 will be explained. Its shape is a cylindrical body having terminal receiving parts 91 and 92 on both sides and a water-shielding wall 93 inside.
The terminal 12 attached to the tip of the grounding wire 6 is appropriately selected depending on the method (eg, insertion method, bolting method, compression method, etc.) that allows the terminal 12 attached to the tip of the grounding wire 6 to be easily joined to the terminal receiving portion 91. In this embodiment, an insertion type female tube contact is used as shown in FIG. That is, the buried conductor 9 for connecting the grounding wire is provided in the Kohin box body 3 in a sealed state via an insulating mold 10 as a female tube lip contact. It is only necessary to simply insert the terminal 12 attached to the terminal 12 in the direction of the arrow in FIG. 3, and its attachment and detachment are extremely easy.

In addition, the external drawer of the Kohinbox is connected to the ground wire 6.
It is desirable that the structure be such that it can be waterproofed using a heat shrink tube or insulating compound after connection.

[Effects of the invention] According to the invention, (1) the work of drawing out the grounding wire can be divided into the inside and outside of the Kohin box, so this work and security management are easy; and (2) the work is simple and stable. , (3) It is no longer necessary to pull out the flange part of the conventional Kohin box, making waterproofing easier, and the waterproofing effect is also greater, resulting in a higher quality level. (4) Grounding at the outer surface connection of the Kohin box The removable wire allows for insulation diagnostic measurements of ground circuits within the cable system.
Therefore, the link box in the prior art described above can be omitted.

[Brief explanation of the drawing]

FIG. 1 is a partially longitudinal front view showing a conventional power cable connection part, FIG. 2 is a longitudinal front view showing an embodiment of the power cable connection part of the present invention, and FIG. FIG. 3 is an enlarged vertical cross-sectional view of a main part showing an example of an embedded conductor unit. 1: Cable, 2: Connection box, 3: Kohinbox main body, 4: Kohinbox flange, 5: Kohinbox flange bolt, 6: Ground wire,
7: Waterproofing section, 8: Embedded conductor unit for grounding wire, 9: Embedded conductor, 91, 92: Terminal receiving section, 9
3: Water-shielding wall, 10: Insulating mold, 11: Adhesive part, 12: Terminal.

Claims (1)

[Scope of utility model registration request] A cylindrical grounding wire connection embedded conductor 9 having terminal receiving portions 91 and 92 on both sides and a water-shielding wall 93 inside is inserted into the main body 3 at any location other than the flange portion 4 of the Kohin Box main body 3. The terminal 12 of the grounding wire 6, which is provided in a sealed manner through an insulating mold 10 and has a terminal 12 attached to its tip, is configured to be removably connected to the terminal receiving portion 91 of the embedded conductor 9. A structure of a power cable connection part characterized by: