JPH02242575A - Connection between metal wire and metal connection terminal - 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 [Field of Industrial Application] The present invention relates to a novel method for connecting metal wires to metal connection terminals without using solder.

[Prior Art] Conventionally, in order to connect a wire such as a round cable to a metal connection terminal without using solder, a crimping method that utilizes plastic deformation of the connection terminal has been widely used.

FIG. 2 is a perspective view showing a wire connection part of a conventional crimp-type connection terminal. It has a pair of core wire crimping protrusions 3 for crimping the core wire 6, and a pair of coating crimping protrusions 4 for crimping the insulation coating 7 of the wire 5.

In FIG. 2(a), the connection terminal 1 before the wire 5 is connected has each of the protrusions 3 and 4 protruding upward.

After inserting the end of the wire 5 into the wire connection part 2, the core wire crimping protrusion 3 and the covering crimping protrusion 4 are crushed using a crimping die, as shown in 2I2I(u). The wire 5 and the connecting terminal 1 are electrically and mechanically connected.

[Problem to be solved by the invention]

As explained above, the conventional wire connecting part 2 is a method of connecting the wire 5 by plastic deformation without pressing the core wire crimping protrusion 3 and the coating crimp protrusion 4, and the connecting work is completed and the connecting terminal 1 Since the protrusions 3 and 4 are sometimes difficult or impossible to connect, it is extremely difficult or impossible to reuse them by reconnecting them to other wires (45).

Particularly, in a connector in which a plurality of connection terminals 1 are attached to one insulator, there is a problem that it becomes necessary to replace each connector due to an incorrect connection at one location.

An object of the present invention is to enable repeated use of the connection terminal due to connection changes, etc. in connection between a metal wire and a metal connection terminal.

[Means to solve the problem]

The method of connecting a metal wire and a metal connection terminal according to the method of the present invention is shown in FIG. After the through-slit 12 is formed into a strip shape with an appropriate length in the widthwise center and the lengthwise direction, one side 13 and the other side 14 separated by the slit 12 are connected in the thickness direction of 1. The core wire (metal wire) 6 is bent into a V-shape in the opposite direction, and the core wire (metal wire) 6 is inserted into the slit 12 which has a diamond-shaped shape when viewed from the side.
is pushed toward the longitudinal end (downward) of the slit 12, and then the connecting portion 11 is twisted.

(Function) According to the above means, the metal wire connection portion is plastically deformed by the twisting operation, whereby the metal wire and the metal wire connection portion are electrically and mechanically connected, and the connection is a metal wire connection. The metal wire connection part can be opened by untwisting the part.The metal wire connection part which has been untwisted in this way returns to its initial shape, so that it can be connected to other metal wires.

〔Example〕

The present invention will be explained in detail below using the drawings.

FIGS. 1A to 1C are perspective views showing the configuration of the metal wire connection portion of the connection terminal and the metal wire connection method according to the method according to the present invention.

In FIG. 1(a), the metal wire connection portion 11 of the connection terminal formed from a metal plate according to the method of the present invention is inserted through the metal wire connection portion 11 in the thickness direction in the widthwise center of the rectangular shape. A slit 12 with a length of is provided.

In Figure 1 ([+), the right part (one side) 13 and left part (other side) 14, which are divided into Surin I. For example, when the right portion 13 is formed into a V-shape toward the rear, the left portion 14 is formed into a V-shape toward the front. Then, Surin I-12 will have a diamond-shaped opening when viewed from the side.

Then, as shown in Fig. 1 (c), insert the core wire (metal wire) 6 exposed at the tip of the wire 5 into the diamond-shaped sulin l-12, and then insert it as shown in Fig. 1 (d) l. Then, when the core wire 6 is pushed into the lower part of the diamond-shaped suline I.12, the edge of the suline 112 bites into the core wire 6, and the core wire 6 is inserted into the metal wire connection part 1.
It becomes temporarily fixed at 1.

Next, by twisting the lower part of the metal wire connection part 11 to plastically deform the metal wire connection part 11, as shown in FIG. - The edge 12 bites strongly, and the metal wire connecting portion 11 and the core wire 6 are electrically and mechanically connected.

(Effects of the Invention) As explained above, according to method G of the present invention, the metal wire connection portion is plastically deformed by the twisting operation, and as a result, the metal wire and the metal wire connection portion are electrically and mechanically deformed. The connection can be opened by untwisting the metal wire connection. Since the metal wire connection portion twisted back in this manner returns to its initial shape, connection with another metal wire, that is, reuse of the metal connection terminal becomes possible.

In particular, a connector provided with a plurality of metal connection terminals according to the present invention exhibits the effects of the present invention more clearly than a conventional connector provided with metal connection terminals.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of an embodiment of the method of the present invention, and FIG. 2 is an explanatory diagram of a conventional crimp-type connecting terminal. In the figure, 5 is a wire, 6 is a core wire (metal wire), 11 is a metal wire connection part, and 12 is a sleeve 1-1. 13 is the right side divided into slits (one side), 14 is the left side divided into slits (the other side), explanatory diagram of the conventional crimp type welding end ÷ Figure 2 76-1

Claims (1)

[Claims] The metal wire connection portion (11) of the connection terminal formed from a metal plate has a slit (12) passing through the connection portion (11) at the center in the width direction and having an appropriate length in the length direction. After forming the strip into a rectangular shape, one side (13) and the other side (14) separated by the slit (12) are bent into a V-shape in opposite directions in the thickness direction of the connecting portion (11). and the slit (12) has a rhombic shape when viewed from the side due to the bending process.
After inserting the metal wire (6) into the slit (12), push the metal wire (6) toward the longitudinal end of the slit (12), and then twist the connecting portion (11). Features a method of connecting metal wires and metal connection terminals.