JPH0418213Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] Industrial Application Field The present invention relates to a grounding device for a branch connector used in electrical wiring in automobiles and the like.

BACKGROUND ART In order to efficiently wire a large number of electrical components, electrical junction boxes (hereinafter referred to as branch connectors) such as fuse boxes, relay boxes, or junction boxes with functional circuits incorporated therein are used. There is.

As a ground connection device for such a branch connector, for example, as shown in FIG. 4, a ground plate b is extended from a bus bar a punched out in a predetermined pattern, and its edge is raised to form a recess c.
It has been proposed that the recess c is fixed to a mounting base e protruding from the case d of the branch connector (see Japanese Utility Model Publication No. 58-94283).

Problems to be Solved by the Invention According to the above-mentioned conventionally known technology, since the ground plate b is formed to protrude from the case d of the branch connector, there is no risk of external damage due to contact with other equipment during the assembly process. However, there remained the problem that the case would become larger.

SUMMARY OF THE INVENTION An object of the present invention is to provide a ground connection device for a branch connector that solves the above-mentioned problems, prevents damage to the ground plate connected to the bus bar, and prevents the case from increasing in size.

[Structure of the idea]

Means for Solving the Problems In order to achieve the above-mentioned object, in the present invention, in a branch connector formed by housing busbars punched in a predetermined pattern in a case, an internal ground connected from the busbars is provided. The present invention is characterized in that a contact is attached to the plate so as to be exposed to the outside from the case, and the contact and an external ground mounting plate are connected and fixed by a mounting bolt passing through the case at right angles to the mounting surface.

Embodiment In FIGS. 1 and 2, A indicates a branch connector, and the outer surfaces of the upper case 1 and lower case 2 include a large number of relay connectors 3 and fuse mounting portions 4.
A large multi-pole connector 5 is provided, and a plurality of bus bars 6, which are punched out in a predetermined pattern corresponding to these connectors 3 and mounting parts 4 and 5, are housed within the case and are supported by an insulating substrate 7. There is.

An internal grounding plate 8 is connected to one side of the bus bar 6 as shown in FIG. 3, and two bent pieces 8b for positioning stand up on the side edges of the plate 8 adjacent to the bolt insertion holes 8a. It is provided. A corresponding positioning hole 1a is formed in the upper case 1 in an L shape. The position of the internal ground plate 8 on the bus bar 6 is arbitrary, but for convenience of pattern design and installation of the branch connector A, it is preferable to position it at a corner of the case as shown in the figure.
A metal cylindrical contact 9, which also serves as a spacer, is welded to the back surface of the internal ground plate 8. The upper case 1 also has a contact insertion hole 1.
b, and bolt insertion holes 10 are provided in the lower case 2 and each insulating substrate 7, respectively.

The installation of the branch connector A and the connection of the internal ground plate 8 to the external ground wire are performed as follows.

First, attach the bus bar 6 to the upper case 1 as shown in Figure 2.
When placed in the positioning hole 1a, the bent piece 8b is placed in the positioning hole 1a.
At the same time, the contact 9 is exposed from the contact insertion hole 1b. Next, the remaining bus bars 6 and insulating substrate 7 (these may be assembled in advance as a wiring board).
, place the lower case 2 on it, and lock both cases.

In this state, a mounting bolt 11 is passed through the lower surface of the lower case 2 as shown in FIG. 1, and the end surface of the contact 9 exposed from the upper case 1 and the ground mounting plate B are tightened with a nut 12. As a result, the fixing of the vehicle body or the like to the ground mounting plate B and the external connection of the internal ground plate 8 are simultaneously coupled.

Effects of the Invention As is clear from the above, in the grounding device for a branch connector of the present invention, the internal grounding plate coupled to the busbar is housed in the case together with the busbar, and the internal grounding plate is housed in the case together with the busbar. Since it is connected and fixed to the outside via a contact using a mounting bolt, there is no risk of damage or deformation to the internal ground plate, and the branch connector can be installed without the need for protrusions unlike conventional mounting bases. Since this is done using the mounting surface (outer surface) of the case, it is possible to prevent the case from becoming larger.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the device of the present invention;
Figure 2 is an exploded perspective view of the same branch connector as seen from the back, Figure 3 is an enlarged perspective view of the bus bar and internal ground plate in the same branch connector, and Figure 4 is a perspective view of a conventional branch connector. be. A... Branch connector, B... Earth mounting plate, 1...
...Upper case, 2...Lower case, 6...Bus bar,
8...Internal ground plate, 9...Contact, 11...
…Mounting bolts.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a branch connector consisting of a busbar punched out in a predetermined pattern and housed in a case, a contact is connected to an internal ground plate connected to the busbar so as to be exposed to the outside from the case. 1. A ground connection device for a branch connector, characterized in that the contact and an external ground mounting plate are connected and fixed by a mounting bolt passing through the case at right angles to the mounting surface of the case. (2) The earth connection device according to claim 1, wherein at least two bent pieces for positioning are provided upright on the side edges of the internal earth plate.