JPH0741978U - Wire connection structure - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an electric wire connection structure capable of automatically connecting a plurality of electric wires. [Arrangement] At least three parent electric wires 11 and one end portions 11a and 12a from which the coatings of the child electric wires 12 are removed are arranged in the valley portions 13a of the joint terminal 13 having a wavy shape having at least three valley portions 13a, Furthermore, joint terminal 1
The joint terminals 13 fixed the one ends 11a and 12a by pressing and deforming 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure for connecting a plurality of electric wires.

[0002]

[Prior art]

 A conventional example of this type is shown in FIG.

In the figure, reference numeral 1 is a parent wire, and the middle portion 1a of the parent wire 1 is covered and removed, while reference numeral 2 is a child wire and the end portion 2a of the child wire 2 is also removed and covered ( (See FIG. 10A). These coating removals can be processed by an automatic machine.

Then, the intermediate portion 1a of the parent electric wire 1 and the end portion 2a of the child electric wire 2 are aligned with each other, and they are bundled and set in the groove of the joint terminal 3 as shown in FIG. ) Crimping like At this time, the joint terminal 3 has several sizes depending on the total cross-sectional area of the wire to be connected, and these are used properly.

Next, a joint tape 5 having a thickness of about 0.3 mm is wound around the joint portion 4 thus crimped to ensure insulation (see (c) of FIG. 10). .

An example of this type is described in Japanese Utility Model Laid-Open No. 62-123072.

[0007]

[Problems to be solved by the device]

 However, in such a conventional one, since the intermediate portion 1a and the end portion 2a of the plurality of electric wires 1 and 2 are directly bundled and set in the joint terminal 3, each electric wire 1, Since there is no gap between the two, it is difficult to grip and set each of the electric wires 1 and 2 with an automatic machine, and it is necessary to align the intermediate portion 1a of the parent electric wire 1 and the end portion 2a of the child electric wire 2. It is difficult, and automation of wire connection work is difficult.

Therefore, an object of the present invention is to provide an electric wire connection structure capable of automatically connecting a plurality of electric wires.

[0009]

[Means for Solving the Problems]

 In order to solve such a problem, in the invention described in claim 1, the wavy joint terminal having at least three troughs has at least three end portions from which the coatings of the electric wires are removed. By arranging the joint terminals and further deforming the joint terminals by pressurizing the joint terminals, an electric wire connection structure having the end portions fixed at the joint terminals is provided.

According to a second aspect of the present invention, there is provided an electric wire connection structure in which an uncovered intermediate portion of a parent electric wire is connected to an end of the child electric wire by removing a joint terminal with a joint terminal. Is divided into two parts, and the covering of the divided ends is removed, while the joint terminal has a corrugated shape having at least three troughs, and the troughs cover the parent and child electric wires. Is disposed, and the joint terminal is fixed by pressing the joint terminal from both sides to deform the joint terminal.

A third aspect of the present invention is characterized in that the fixing is performed by welding after pressurizing the joint terminal.

The invention described in claim 4 is characterized in that the joint terminal is formed with a biting part that bites into the end of the electric wire due to deformation by pressurization.

[0013]

[Action]

 According to this structure, the end of the electric wire whose coating is removed is placed in the valley of the wavy joint terminal, and the joint terminal is pressed and deformed so that the end is I fix it and connect each electric wire.

According to this, unlike the prior art, it is not necessary to position the intermediate portion of the parent wire and the end portion of the child wire, and the end portion of each wire is positioned. Can be positioned. Also, because the ends of each wire are arranged in the valleys of the joint terminal, there is no need to bundle the wires together without a gap, and a gap can be set between the wires. Each wire can be gripped and set by an automatic machine using. Therefore, a plurality of electric wires can be connected by the automatic machine.

Further, by preparing one type of corrugated plate and cutting this plate at an arbitrary length, it is not necessary to prepare a plurality of types of joint terminals as in the conventional case, and the number of parts is reduced. be able to.

Furthermore, by forming the biting portion in the joint terminal, the biting performance of the electric wire into the joint terminal can be further improved.

[0017]

【Example】

 The present invention will be described below based on embodiments.

1 to 5 show a first embodiment of the present invention.

First, the configuration will be described. In FIG. 1, reference numeral 11 is a parent electric wire divided into two, and one end 11a of these parent electric wires 11 is covered and removed, while reference numeral 12 is a child electric wire. The one end 12a of 12 is also covered and removed.

The one ends 11a and 12a are crimped by the joint terminal 13, and the joint 14 is molded by a resin covering member 15 having an insulating property.

The joint terminal 13 is formed by cutting a corrugated plate 16 made of a conductive material (for example, a galvanized copper plate) having a large number of valleys 16 a as shown in FIG. 5 into an arbitrary length. . In this embodiment, since there are three end portions 11a and 12a to be connected, as shown in FIG. 1A, etc., the end portions 11a and 12a are cut into a length having three valley portions 13a. The respective end portions 11a and 12a are arranged in the valley portions 13a.

Next, a method of connecting the parent electric wire 11 and the child electric wire 12 will be described mainly with reference to FIG.

First, the cutting section 18 cuts the parent electric wire 11 and the child electric wire 12 carried in from the electric wire carrying-in section 17. In this state, the parent electric wire 11 is divided into two parts. Next, the coverings of the one ends 11a and 12a of the parent electric wire 11 and the child electric wire 12 are removed by the covering removing unit 19.

After that, the respective one ends 11a and 12a are positioned, and the respective one ends 11a and 12a are inserted and arranged in the respective valleys 13a of the joint terminal 13. The positioning in this case is not to position the intermediate portion 1a of the parent wire 1 as in the conventional case, but to divide the parent wire 11 into two parts and position one end 11a, so positioning is performed by an automatic machine. it can. In addition, since the one end portions 11a and 12a are arranged in the respective valley portions 13a of the joint terminal 13 in the insertion arrangement, a gap can be set between the electric wires 11 and 12 as shown in FIG. The electric wires 11 and 12 can be gripped and set by an automatic machine using the gap.

Next, the pressing plates 21 are projected by the air cylinders 20 on both sides, and the joint terminals 13 are pressed from both sides by these pressing plates 21 to be deformed, and the one ends 11a and 12a are pressure-bonded.

After that, the joint terminal 13 is welded at the welded portion 22 so that the electric wires 11 and 12 are fixedly held so as not to come off.

Then, in the molding part 24, the joint part 23 is molded with the covering member 15 made of an insulating resin material. This completes the connection between the parent electric wire 11 and the child electric wire 12 (see FIG. 4).

On the other hand, the other ends 11 a and 12 a of the electric wires 11 and 12 are moved together with the above flow and cut by the cutting part 25, and then the terminal 27 is attached by the terminal crimping part 26. .

By embedding the joint portion 14 with the insulating covering member 15 in this manner, there is no need for conventional tape winding, automation is ready, and problems such as piercing of the insulating tape may occur. Absent. FIG. 6 shows a second embodiment of this invention.

In this embodiment, the parent electric wire 11 divided into two and the three child electric wires 12 are connected to each other. The joint terminal 33 for connecting the parent electric wire 11 is formed with a total of five valley portions 33a. Has been.

In this way, by cutting the corrugated plate 16 into an arbitrary length according to the number of parent electric wires 11 and child electric wires 12 to be connected, it is only necessary to prepare one kind of corrugated plate 16 and several kinds of corrugated plates 16 are prepared. The joint terminals 13, 33, etc. can be easily manufactured.

The other structure and operation are the same as those of the first embodiment, and the description thereof will be omitted.

Further, FIGS. 7 to 9 show a third embodiment of the present invention.

The joint terminal 43 of this embodiment is different from the joint terminal 13 of the first embodiment. That is, the joint terminal 43 is formed with three troughs 43a, and a pair of cut-and-raised pieces 43b as "biting portions" project toward the inside of the troughs 43a. In addition, a plurality of concave portions 43c as "biting portions" are formed in the lowest portion of the valley portion 43a.

The joint terminal 43 is formed by cutting an elongated corrugated plate 42 as shown by the chain double-dashed line in FIG. 7 to an arbitrary length as shown by the solid line. Further, the corrugated plate 42 is formed by bending a flat plate-shaped one having the cut-and-raised pieces 43b and the recess 43c shown in FIG.

When the joint terminal 43 is used, the joint terminal 43 is shown in FIG. 9 in a state where the one end portions 11a and 12a of the electric wires 11 and 12 are inserted into the valley portions 43a of the joint terminal 43. By pressing and deforming from both sides as shown, when the one end portions 11a and 12a are pressure-bonded, the cut-and-raised pieces 43b bite into the one end portions 11a and 12a, and the one end portions 11a and 12a bite into the recess 43c. It will be. Therefore, it is possible to make it more difficult for the electric wires 11 and 12 to come off the joint terminal 44.

[0037]

[Effect of device]

 As described above, according to the present invention, the end of the electric wire whose coating is removed is arranged at the valley of the wavy joint terminal, and the joint terminal is further deformed by applying pressure. By fixing the ends with, it is possible to align the ends of each wire and set each wire with an automatic machine, so that it is possible to connect a plurality of wires with an automatic machine.

Further, by preparing one type of corrugated plate and cutting the corrugated plate at an arbitrary length, it is not necessary to prepare a plurality of types of joint terminals as in the conventional case.

Further, if the biting portion is formed in the joint terminal, a practically useful effect that the biting performance of the electric wire into the joint terminal can be further improved is exhibited.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing the sequence of connection states of each line showing a first embodiment of the present invention.

FIG. 2 is a schematic view of an electric wire connection structure showing the embodiment.

FIG. 3 is a perspective view showing a case of crimping with a joint terminal according to the embodiment.

FIG. 4 is a perspective view showing a case where a joint portion according to the embodiment is resin-molded.

FIG. 5 is a perspective view of a corrugated plate showing the same embodiment.

FIG. 6 is a perspective view of a joint terminal according to a second embodiment of the present invention in which each wire is set.

FIG. 7 is a perspective view of a corrugated plate showing a third embodiment of the present invention.

FIG. 8 is a perspective view showing a state before forming the corrugated plate according to the third embodiment.

FIG. 9 is a perspective view showing a state in which each wire is crimped with a joint terminal according to the third embodiment.

FIG. 10 is an explanatory diagram corresponding to FIG. 1 showing a conventional example.

[Explanation of symbols]

 11 Parent wire (electric wire) 11a One end 12 Child wire (electric wire) 12a One end 13,33,43 Joint terminal 13a, 33a, 43a Valley

Claims (4)

[Scope of utility model registration request] 1. A stripped end of at least three electric wires is arranged in the valley of a corrugated joint terminal having at least three valleys, and the joint terminals are applied from both sides. A connection structure for an electric wire, characterized in that the end portion is fixed at the joint terminal by pressing and deforming. 2. In a connection structure of an electric wire, in which a sheath of a parent electric wire is removed and an end of the slave electric wire whose sheath is removed is connected by a joint terminal, the parent electric wire is divided into two parts, and the divided part is divided into two parts. The joint terminal has a corrugated shape having at least three troughs, while the coating of the parent wire and the child wire is removed. Further, the connection structure of the electric wire characterized in that the joint terminal fixes the end portions by pressurizing and deforming the joint terminal from both sides. 3. The electric wire connection structure according to claim 1, wherein the fixing is performed by welding after pressurizing the joint terminal. 4. The electric wire connection structure according to claim 1, wherein the joint terminal is formed with a biting portion that bites into the end portion of the electric wire when deformed by pressurization.