JPS6010279Y2 - terminal fittings - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to improvements in terminal fittings.

Conventional terminal fittings, such as ground terminals, have a shape as shown in Fig. 1, but they have small electrical capacity and weak mechanical strength, and are particularly difficult to use at the terminal connection part a when used in running devices such as automobiles. At the neck C that connects the electric wire connection part 6
It often breaks.

This is thought to be because the terminal material deteriorates and becomes brittle due to the temperature rise at the wire connection.

In view of the above-mentioned points, the present invention aims to provide a long-life terminal fitting with a double structure in which the contact part with the ground plate etc. of the terminal and the neck part have a large electrical capacity and mechanical strength. .

Hereinafter, one embodiment of the present invention will be explained with reference to the drawings.
In the figure, A is the ground terminal, and the wire connection part A□
It is configured to have a terminal contact part A3 in front of the neck part A2, and the wire connection part A is provided with crimping clamping pieces 1 and 2 for the conductor and insulation coating of the wire, as in the conventional case. However, in the present invention, the terminal contact portion A3 has a folded and polymerized double structure.

That is, the terminal contact portion A3 is attached to the circular substrate 3 having the screw insertion hole 4 via the connecting piece 5, and is connected to the S゛same-shaped overlapping plate 3'.
Further, a neck reinforcing piece 6 extending into the conductor crimping and clamping piece 1 having a substantially U-shape is protruded from the tip of the overlapping plate 3'.

Note that 7 is a protrusion corresponding to the neck reinforcing piece 6, which prevents the electric wire from slipping and improves electrical contact.

As shown in FIG. 3, the grounding terminal A is integrally manufactured by punching out a negative metal plate to form a material A' and bending it along the dotted line P.

In the above structure, the terminal contact part A3 and the neck part A2 have a two-piece structure folded and overlapped by the polymer plate 3' and the neck reinforcing piece 6, respectively, so that the mechanical strength is increased and the life span thereof can be extended. .

Furthermore, since the neck reinforcing piece 6 reaches the conductor crimping and clamping piece 1, a step Q is created between the neck reinforcing piece 6 and the substrate 3 (FIG. 4).

Therefore, when the electric wire W is crimped and connected to this grounding terminal A, the difference in thickness between the conductor W and the insulation coating W2 is alleviated by the step Q, and the conductor W1 is not subjected to excessive force, causing its breakage. etc., and can make a stable electrical connection.

The cushioning properties can be improved by making the connecting piece 5 that connects the substrate 3 and the overlapping plate 3' longer and bending it into an arc shape to form a large space between the substrate 3 and the overlapping plate 3'. When fixing to a ground plate etc. through the screw insertion hole 4,
Appropriate tightening can be performed.

Although the example of the earthing terminal having the screw insertion hole 4 in the terminal contact portion A3 has been described above, the present invention can be similarly applied to a general male or female terminal fitting.

As described above, the present invention provides a terminal fitting in which a terminal contact part is connected to the front of an electric wire connection part through a neck part, and an overlapping plate and an electric wire are connected to the terminal contact part through a connecting piece at the front end of the terminal contact part. Since it has a double-fold structure with a neck reinforcing piece that reaches into the approximately U-shaped conductor crimping clamping piece at the connection part, it has high mechanical strength and electrical capacity, and can be easily used when connected to electric wires. By completely fixing the folded double structure, durability can be imparted with a simple structure.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing an example of a conventional grounding terminal;
The figure is a perspective view showing one embodiment of the present invention, FIG. 3 is a developed view thereof, and FIG. 4 is a sectional view of a main part showing an example of connection with electric wires. A...Ground terminal, A1...Wire connection part, A2...Neck part, Hmm...Terminal contact part.

Claims (1)

[Scope of utility model registration request] In a terminal metal fitting in which a terminal contact part is connected to the front of a wire connection part via a neck part, the overlapping plate and the wire connection part are connected to the terminal contact part via a connecting piece at the front end of the terminal contact part, and the approximately U-shaped A terminal fitting characterized in that it has a neck reinforcing piece that reaches inside the conductor crimping clamping piece and has a folded double structure.