JPS6219048Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for fixing a male tab terminal and a wiring board in a busbar wiring board.

Nowadays, busbar wiring boards are often used in the internal circuit configuration of electrical connection boards (e.g. fuse boxes, control boxes) in automobiles, etc.
As shown in Figure 5, this is a wiring board (insulating substrate) a.
It has a simple structure in which a groove b is provided in the busbar circuit d and a busbar circuit d having a male tab terminal c is simply placed thereon, and the circuit d and the wiring board a are not fixed in many cases. Therefore, when assembling or laminating the wiring board, the circuit d naturally tends to come off easily, resulting in poor workability. In order to solve this problem, as shown in Fig. 6, a wedge-shaped protrusion e is provided at the base end of the male tab terminal c, and the wedge-shaped protrusion e is press-fitted into the protrusion e using the terminal insertion hole f of the upper wiring board a'. A simple method is used to fix it.

However, during press-fitting, a large amount of pressing force is required for the wedge-shaped protrusion e to overcome the insertion hole f, and fine shavings are generated, resulting in poor workability and contamination of the wiring board.

The present invention has been made to improve the above-mentioned problems, and it is possible to easily and reliably fix a male tab terminal, that is, a bus bar, and a wiring board without producing shavings or the like.

Below, the present invention will be explained based on the drawings.
In the figure, 1 is a busbar circuit having a male tab terminal 2, 3 is a wiring board located on the top of the busbar circuit 1, and this wiring board 3 has an elongated terminal insertion hole 4.
and a slit 5 is provided along its longitudinal direction.

By providing the terminal insertion hole 4 and the slit 5 close to each other in substantially parallel manner, a flexible wall 6 is formed between the slit 5 and the terminal insertion hole 4. Further, a protrusion 4a is formed on the slit 5 side of the terminal insertion hole 4, and the distance g between the protrusion 4a and the opposing side is made slightly smaller than the thickness t of the male tab terminal 2.

In the above configuration, when the male tab terminal 2 is press-fitted into the terminal insertion hole 4, resistance is generated because the interval g is smaller than the terminal thickness t, but as shown in FIG. 6 is bent toward the slit 5 side, and the terminal insertion hole 4 is expanded. As a result, the male tab terminal 2 smoothly enters the terminal insertion hole 4 and is elastically held by the flexible wall 6. That is, according to the present invention, the male tab terminal 2 or the bus bar circuit 1 can be fixed to the wiring board 3 with a low insertion force without producing shavings or the like.

FIG. 3 shows another embodiment of the present invention, in which slits 5, 5 are provided on both sides of the terminal insertion hole 4, and protrusions 4a, 4a are formed on both sides of the hole edge. In this case, since the flexible walls 6 are formed on both sides of the terminal insertion hole 4 by providing slits on both sides, the press-fitting operation of the male tab terminal 2 becomes smoother.

FIG. 4 shows another embodiment of the present invention, in which instead of protruding the protrusion 4a into the terminal insertion hole 4 of the wiring board 3,
A protrusion 2a is formed at the base end of the male tab terminal 2 by stamping or the like, and the same effect as described above can be obtained.

As described above, the present invention provides an apparatus in which a terminal insertion hole is provided in a wiring board, and a male tab terminal is press-fitted into the terminal insertion hole to fix it. Since a flexible wall is formed between the terminal insertion hole and the terminal insertion hole, and the male tab terminal is elastically held through the flexible wall, there are no shavings when press-fitting the male tab terminal as in the conventional method. The male tab terminal or the bus bar circuit and the wiring board can be easily and reliably fixed with low insertion force without causing problems such as the like, and work efficiency can be greatly improved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the present invention in a separated state, FIG. 2 is a plan view of its assembled state, and FIG.
4 and 4 are explanatory diagrams showing an embodiment of the present invention, respectively, and FIGS. 5 and 6 are explanatory diagrams of a conventional example. 2...Male tab terminal, 3...Wiring board, 4...Terminal insertion hole, 5...Slit, 6...Flexible wall.

Claims (1)

[Scope of utility model registration request] In an apparatus in which a terminal insertion hole is provided in a wiring board and a male tab terminal is press-fitted into the terminal insertion hole and fixed, a slit is provided along the longitudinal direction of the terminal insertion hole, and a slit is provided between the slit and the terminal insertion hole. A fixing device for fixing a male tab terminal and a wiring board by forming a flexible wall and elastically holding the male tab terminal through the flexible wall.