JPH05121225A - Connecting method for insulating film coated wire with terminal - Google Patents

Abstract

PURPOSE:To firmly connect insulating film coated wire with a terminal by removing an insulating film on the edge of the insulating film coated wire for a prescribed length by grinding it with rotary knives, grinding the core wire finer and winding the fine core wire on the terminal so as to be firmly adhered by soldering. CONSTITUTION:The edge of an enamel wire 4 is processed and an enamel removed part 6 and fine core wire 7 are made. The fine core wire 7 is wound on the base of a pin terminal 2 to be firmly adhered by soldering. For the process of the terminal of the enamel wire 4, a plurality of rotary knives 8 such as fraise cutters and a plurality of rotary knives 9 such as bevel gear cutters are used. Thus, the connection of the edge of the insulating film coated wire of a coil, etc., with the terminal is performed beautifully and firmly in a short time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for connecting an electric wire having an insulating coating and a terminal.

[0002]

2. Description of the Related Art In a coil in which an electric wire having an insulating film (for example, enamel copper wire) is wound around a winding frame with pin terminals,
To connect the end of an electric wire to a pin terminal, immerse the end of the electric wire in an insulating film (enamel) stripping solution, pull it up, leave it for a while, and then wipe off the stripped film, leaving the bare wire (core wire) as a pin terminal. This was done by soldering the tangs after tangling.

[0003]

The work of peeling off the insulating coating with a peeling liquid needs to be done carefully because it easily stains the surroundings, which has the drawbacks of low efficiency and poor dimensional accuracy of the peeling length. Further, when the diameter of the core wire is large, it is difficult to twist the wire, and there are drawbacks that the finished shape and size vary and that the pin terminals bend. An object of the present invention is to provide a connection method that solves the above-mentioned drawbacks and facilitates connection between the end of an electric wire having an insulating coating and a terminal.

[0004]

In order to eliminate the conventional drawbacks, an end portion of an insulating coated electric wire is ground by a device equipped with a rotary blade to remove the coating, and a core wire is ground to be thin. To do. That is, the present invention, the end portion of the insulating coating wire is removed by grinding the insulating coating over a predetermined length with a rotary blade, and further, the core wire is ground to be thin, and the thin core wire is used as a required terminal. It is a method of connecting an insulating coated electric wire and a terminal, which is characterized in that the electric wire is twisted and fixed by soldering.

[0005]

The rotary blade rotates and revolves to grind the outer peripheral surface of the stationary end of the electric wire. The thin core wire is easy to bend and works so as to obtain a tight cord to the pin terminal.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 (A) is a front view of a main part of a coil to which the present invention is applied, which is shown upside down. It is a coil in which the enamel electric wire 4 is wound around a pin terminal winding frame in which a pin terminal 2 and a standoff piece 3 are provided on the bottom surface (upper surface in the figure) of the end flange 1 and a U-shaped core 5 is assembled. This is a coil in which the end portion of the enamel electric wire 4 and the pin terminal 2 are connected by the method described below. The end portion of the enamel electric wire 4 is processed to form an enamel removing portion (core wire) 6 and a thin core wire 7 (shown by a chain line),
As shown by the solid line, the thin core wire 7 is entangled at the base of the pin terminal 2 and then fixed by soldering (solder not shown). Since it is the thin core wire 7, it can be twisted lower than the standoff piece 3 and densely.

The end portion of the enamel electric wire 4 is machined as shown in FIG.
A plurality of rotary blades (rotary blades) 8 such as a milling blade shown by broken lines in (B), and a plurality of rotary blades 9 such as a bevel gear.
Done in. As shown in FIG. 2, the rotary blades 8 and 9 are arranged inside the processing apparatus 10 such as an electric sharpener with the rotary blade 8 facing the front. The rotary blades 8 and 9 can be adjusted in the distance between the blades with the handle 11 on the side surface of the device 10,
As shown by the arrow in FIG. 1 (B), it rotates and revolves at the same time. The blade of the rotary blade 9 may be either a straight blade or an oblique blade. The rotary blades 8 and 9 may be whetstones instead of cutting tools.

When the end portion of the enamel electric wire 4 is straightened and inserted into the through hole 12 on the front surface of the processing apparatus 10,
As shown in the sectional view of the main part in FIG. 1 (B), the rotary blade 8 cuts the enamel (insulating coating) 13 to leave the core wire 6 bare,
The rotary blade 9 cuts the core wire 6 into a thin core wire 7. The required length of the end of the enamel electric wire 4 is inserted into the device 10 to make the required thin core wire 7. The thin core wire 7 is supported by the back portion of the device 10 and projects from the back surface. The enamel removing section 6 and the thin core wire 7 can be extracted after stopping the operation of the device 10 and widening the distance between the blades of the rotary blades 8 and 9.

[0010]

According to the present invention, the connection between the terminal and the terminal of an insulating coated electric wire such as a coil can be made clean and strong in a short time.

[Brief description of drawings]

FIG. 1 is a front view illustrating a process of an embodiment of the present invention, FIG. 1 (A) is a front view of a main part showing a coil to which the present invention is applied, and FIG. 1 (B) is an insulation coated electric wire. Shows the main part of the end,
The partial cross section front view explaining a processing process.

FIG. 2 is an external perspective view showing a processing apparatus used in the present invention.

[Explanation of symbols]

 1 end flange 2 pin terminal 3 standoff piece 4 enamel electric wire 5 U-shaped core 6 enamel removal part (core wire) 7 fine core wire 8 rotary blade 9 rotary blade 10 processing device 11 handle 12 through hole 13 enamel

Claims (1)

[Claims] 1. An end portion of an insulation coated electric wire is removed by grinding the insulation coating over a predetermined length with a rotary blade, and further, a core wire is ground to be thin, and the thin core wire is connected to a desired terminal. A method of connecting an insulated coated electric wire and a terminal, characterized in that the wires are fixed by soldering.