JPS5844675A - Method of pressing and connecting wire material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for crimping and connecting wiring materials using crimp terminals, and in particular, a method for crimping and connecting wiring materials that enables reliable connection even if the cross-sectional area of the wiring material is small. Regarding.

Crimp terminals are crimped onto the core wire of wiring materials such as cables,
Used to secure the chip to the location where it should be connected. Figure 1)--) shows a perspective view of a crimp terminal.The crimp terminal has an integral structure of a tip part 2-3 provided with a through hole 2-1 and a ring-shaped pressure contact part 2A-2. It is made of a good conductor such as brass. This pressure contact part 2A-2
Insert the core wire 1-1 from which the coating of the wiring material 1 has been removed, and use a crimping tool to press the outer periphery of the crimping part 2-2 with a punch to form a concave part, and the 2 crimp terminals and the core wire 1 -1 is made. Furthermore, insert the crimp terminal 2 through the through-hole 2-1 into the 4 studs of the relay terminal 4, and then tighten the nut 3.
By tightening, the chip portion 2-3 is compressed between the relay terminal 4 and the nut 3, and the wiring material 1 cannot be connected to the relay terminal 4. Φ) is a V-shaped pressure contact part 2B
-2 is a crimp terminal 2B, and in this crimp part 2B-2, the core wire 1-1 is inserted along the inner surface of the 07 shape in the same way as described above, and a recess B is formed with a crimping tool T. This completes the connection. Two crimp terminals.

2B is generally jlI2 As shown in Figure (Il), if the diameter D1 of the pressure contact part 2-2 is small, the through hole 2-1 @D2 provided in the tip part 2-3 is proportional. becomes smaller. If the cross-sectional area of the core wire 1-1 is appropriate, by providing the recess A, the pressure welding portion 2-2 and the core wire 1-1 can be completely joined. However, as shown in Φ), the core 81
If the cross-sectional area of -1 is small, even if recess A is provided,
A space F is created between the person-2 and the core 111-1, resulting in incomplete joining. The same applies to the crimp terminal 2B. Therefore, the two crimp terminals 2B are selected to be suitable for the cross-sectional area of the core 11ix-1. Therefore, core 51
-1 has a small diameter D2, and if the diameter of the four studs is large, it becomes impossible to insert the through holes 2A-1 and 2B-1, resulting in a problem that the connection between the interruption terminal 4 and the wiring material 1 cannot be made. Therefore, the crimp terminal 2A used
, 2! If the thickness of wiring material 1 is not within the applicable core wire range of B, it will lack reliability if crimped as is.
Conventionally, they were joined. The former method increases the number of man-hours required, while the latter method is uneconomical.

The purpose of the present invention is to eliminate the above-mentioned problems, and the core wire is folded back and tightened into a U-shape so that the cross-sectional area of the core wire is increased, and #4U4B is inserted into the pressure welding part. It is characterized by

The present invention will be explained in detail below with reference to FIG.

FIG. 3 (1) Φ) is a perspective view of the crimp connection method for wiring materials according to the present invention. The core wire 1-1 of the wiring material 1 is folded back into a U-shape 1-2, and the pressure welding portions 2A-2 and 2 are formed.
It is designed to be inserted into B-2 in the direction of arrow 0.

The insertion screws are connected using a crimping tool in the same manner as described above. Thereby, the cross-sectional area of the core Ml-1 can be increased, and even if the wiring material 1 is thin, 2B can be used for a large crimp terminal 2. Therefore, the connection with the relay terminal 4 will not be impossible because the wiring material 1 is thin as described above.

As explained above, the present invention has a U-shaped core 111-1.
2, and attach it to the pressure contact part 2 of the crimp terminals 2A and 2B.
2, 2B-2 and crimped.This allows the wire diameter of the wiring material 1 to be changed to match the size of the four studs to be connected, or to 2A-2, 2B-2f - There is an advantage that crimp connection can be made without attaching Ushida.

[Brief explanation of the drawing]

Figures 1 (a) and (b) are perspective views showing the conventional crimp connection method for wiring materials, Figure 2 (1) φ) is a front view of the crimp part, and Figure 3
Figure (Hata) Φ) shows a perspective view of the crimp connection method of the present invention. 1, l is wiring material, 2A, 2B are crimp terminals, 2
A-1, 2B-; 16 year old through hole, 2A-2゜2B-2 is pressure contact part, 2A-3, 2B-3 is tip part, 3 is nut,
4 indicates the relay terminal, 4A indicates the stud T0 3!1 Figure (A) (k)

Claims (1)

[Claims] The core wire is inserted into the crimp part of the crimp terminal, which has a tip part formed of a metal material and a crimp part into which the core wire of the wiring material is inserted along the side wall, and the side wall is deformed with a predetermined pressure to make the crimp bond. In a crimp connection method for a wiring material that connects the core wire to a terminal, the wrinkled core wire is folded back and bent so as to increase the cross-sectional area of the core wire to form a U-shape, and the U-shape is attached to the crimp portion. A crimp connection method for wiring material characterized by inserting the wiring material.