JPH0487162A - Terminal device - Google Patents

Abstract

PURPOSE:To simplify and sure fixture of a cable to a terminal by forming a cable inserting groove at the forward end of the terminal, chamfering aperture end angle parts of this insertion groove, forming a cut for catching the forward end of the cable, and soldering the cable wound around the terminal to it. CONSTITUTION:A cable 3 is inserted into an insertion groove 4 of a terminal 2, wound around a cut 5a, 5b to be caught, and soldered to be fixed. The cable 3 is therefore inserted into the insertion groove 4 and then caught at the cut 5a, 5b, where a catching force is generated, so a need of caulking the insertion groove 4 to hold the cable is eliminated. The cable can thus be prevented from being cut by excessive caulking, and the work can be simplified because a caulking process can be omitted. The fixture of the cable 3 to the terminal 2 is thus ensured.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a terminal device suitable for terminals of switches.

(Prior art) Conventionally, this type of terminal device has an insertion groove formed at the tip of the terminal into which the electric wire is inserted.The tip of the electric wire is inserted into this insertion groove, and the area around the insertion portion is soldered. It is attached and fixed.

(Problem to be Solved by the Invention) However, in such conventional terminal devices, if a short-circuit current flows through the terminal and overheats, or if there is a solder defect, the wire may float above the terminal and cause a contact failure. be.

Further, after inserting the electric wire into the insertion groove of the terminal, the insertion groove is caulked to sandwich the electric wire, but if the caulking is excessive, there is a problem that the electric wire may be cut.

The present invention has been made in consideration of these circumstances, and its object is to provide a terminal device that can both simplify and ensure the fixation of electric wires to terminals.

[Structure of the invention]

(Means for Solving the Problems) In order to solve the above problems, the present invention is configured as follows.

In other words, this invention forms an insertion groove into which the electric wire is inserted at the tip of the terminal, chamfers the open end corner of this insertion groove,
A notch is formed at the end of the terminal in the width direction to hook the tip of the electric wire inserted into the insertion groove beyond the insertion part, and the electric wire wound around this terminal is soldered, and the heat generated at that time is The terminal is characterized in that a hole for radiating heat is formed in the terminal.

(Function) The electric wire is inserted into the insertion groove of the terminal, wound around the notch, hooked, and fixed by soldering.

Therefore, the electric wire is inserted into the insertion groove and then hooked on the notch, and the hook generates force, so there is no need to crimp the insertion groove to hold the electric wire.

Therefore, it is possible to prevent the electric wire from being cut due to excessive caulking, and to simplify the work by omitting the caulking process.

Furthermore, since the electric wire wound around the terminal is soldered, it is possible to ensure that the electric wire is fixed to the terminal.

Furthermore, since the heat during soldering is dissipated through the heat dissipation holes, it is possible to prevent the terminal from overheating, reduce heat conduction from the terminal to other electronic components, etc. It is possible to reduce the thermal influence on

(Example) An embodiment of the present invention will be described below with reference to FIG.

FIG. 1 is a perspective view of an embodiment of the present invention, and in the figure, a terminal device 1 has a terminal 2 formed into a rectangular shape made of a conductor, and an electric wire 3 is inserted into the tip (upper end in FIG. 1) of the terminal 2. A longitudinal groove-shaped insertion groove 4 is formed.

The insertion groove 4 is formed to a required length along the longitudinal direction of the terminal 2 from approximately the middle of the tip side of the terminal 2, and chamfered portions 4a and 4b that widen toward the front are formed at the open end corners to facilitate insertion of the electric wire 3. This is intended to simplify insertion into the groove 4.

In addition, the terminal 2 has a pair of left and right circular arc notches 5a and 5b symmetrically formed at the lower side of the insertion groove 4 at both left and right ends thereof, so that the insertion portion of the electric wire 3 inserted into the insertion groove 4 is The tip of the other end is designed to be hooked.

Further, the terminal 2 has a heat radiation hole 6, for example, a circular through hole, formed slightly below the insertion groove 4, so that the heat generated when the terminal 2 is soldered is efficiently radiated.

Next, a method for fixing the electric wire 3 to the terminal 2 will be explained.

First, the tip of the electric wire 3 is inserted into the insertion groove 4, and then wrapped and hooked around at least one of the pair of circular arc notches 5a, 5b.

After that, connect the electric wire 3 wrapped around the terminal 2 in this way to the terminal 2.
solder to fix the electric wire 3 to the terminal 2.

The heat during this soldering is efficiently radiated from the heat radiation holes 6.

Therefore, according to this embodiment, since the electric wire 3 is inserted into the insertion groove 4 of the terminal 2 and then hooked on the circular arc notches 5a and 5b, the electric wire 3 is caught and there is no need to caulk the insertion groove 4. .

Therefore, workability can be improved and simplified to the extent that the caulking process can be omitted.

Further, since the electric wire 3 wound around the terminal 2 is soldered, the electric wire 3 is fixed to the terminal 2 with greater certainty, in combination with the bow hanging of the electric wire 3 by the circular arc notches 5a and 5b.

Furthermore, since the heat generated during soldering can be efficiently radiated through the heat radiation holes 6, the amount of heat conducted during soldering to other components through the terminals 2 and wires 3 is reduced.
Thermal effects on other parts can be reduced.

〔Effect of the invention〕

As explained above, in this invention, the electric wire is inserted into the insertion groove of the terminal and then hooked on the notch, so the electric wire gets caught.Moreover, since the electric wire wrapped around the terminal is soldered, It is possible to further improve the reliability of fixing the electric wire.

In addition, since the soldering described above can efficiently dissipate heat through the holes of the terminals, the amount of heat conducted by the terminals and wires is reduced, and the thermal influence on other components connected to them is reduced. I can do it.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of a terminal device according to the present invention. 1... Terminal device, 2... Terminal, 3... Electric wire, 4...
...Insertion groove, 4a, 4b...Chamfered portion, 5a, 5b.
...Circular notch, 6...Radiation hole.

Claims (1)

[Claims] An insertion groove is formed at the tip of the terminal to insert the electric wire,
The opening end corner of this insertion groove is chamfered, and a notch is formed in the width direction side end of the terminal to hook the tip of the electric wire inserted into the insertion groove beyond the insertion part. 1. A terminal device characterized in that a wound wire is soldered and a hole is formed in the terminal to radiate heat generated during soldering.