JPH04155779A - Connecting part of insulated wire and its connecting method - Google Patents

Abstract

PURPOSE:To perform connecting work effectively by positioning a conductor connecting part and an insulator combining part along the side face of one side adjoining part of an insulated wire. CONSTITUTION:Simultaneously twisted insulated wires 1a and 1b to be connected to each other are formed of respective quadruple twisted four core wires 11a, 12a, 13a, 14a and 11b, 12b, 13b, 14b, and respective corresponding core wires are put in connection at connecting parts 21, 22, 23, 24. At the connecting part 21 the core wires 11a and 11b are respectively bent at a bent part 5 to be in parallel to each other, and a conductors 3a and 3b, which are exposed by way of removal of their insulators at their end parts, are twisted and soldered at a conductor connecting part 3e, and the tip of the conductor connecting part 3e is covered by an insulating tube 4. The core wires 11a and 11b are covered by the short insulating tube 6 at a position close to a bent part 5, the end part, from the vicinity of the bent part 5 to the end of the conductor connecting part 3e, is inserted into an insulating cap 7, and is fixed to the insulated wire 1a together with the connecting part 22 by a tape 8a being wound up on the periphery of the cap 7.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a connection portion and a connection method of insulated wires, and firstly to a connection portion and unconnection method of insulated wires suitable for ultra-fine diameter stranded wires.

[Conventional technology] It is also used as a method for connecting core wires in cables.
The twist soldering method is widely used. Hey
In this method, for example, as shown in FIG. 4(A), the insulators 2a and 2b of the insulating cores 1i1a and lb to be connected are
The terminal parts 3c and 3d are stripped off to expose the conductors 3a and 3b, and the core wire 1a is cut at the bent part 5 so that the parts 1c and ldl further away from the terminals are lined up parallel to each other.

1b at a nearly right angle to the same side, Figure 4 (B) left
As shown in FIG.
3a, 3b and the parts 1c, ld where the core wires are lined up are twisted, and the conductors 3a, 3b are connected by soldering.
As shown in Figure 4 (C), the front of the twisted part of the core wire
Bend the bent portion 5 deeper so that 1c and ld are along the core 11a, and insert the insulating sleeve 41 in advance.
or, as shown in Fig. 5, without twisting the parts 1c and ld where the core wires are lined up, the terminal part 3c is
, 3d (see FIG. 4(A)) are twisted and connected by soldering, and then covered with an insulating cap 51 for protection. This method, as explained later,
Not suitable for connecting core wires made of stranded conductors with extremely small diameters.

In order to connect co-twisted ultra-thin diameter core wires used for communication and control cables, etc., as shown in FIG. A copper sleeve 61 is attached to the conductors 3a and 3b exposed by removing the
conductor 3a by soldering or compressing the copper sleeve 61.

3b is fixed and an insulating tape 62 is wrapped around it. Instead of wrapping the insulating tape 62, an insulating tube may be covered.

[Problem to be solved by the invention]

However, among the conventional connection methods mentioned above, the former method, that is, twist soldering, is difficult to use when the core wire is made of twisted conductors with an extremely small diameter because the conductor is weak. The latter method, i.e., using a copper sleeve, makes it possible to connect ultra-thin diameter twisted core wires, but the efficiency of the connection process is low, and The use of sleeves increases material costs.

Therefore, the first object of the present invention is to realize a connection section for insulated wires having a single ultra-fine twisted conductor, which has good connection work efficiency and low material cost.

A second object of the present invention is to realize a method for connecting insulated wires having ultrafine twisted conductors, which has good working efficiency and low material cost. In particular, it is an object of the present invention to realize a connection method that is useful for connecting ultrafine co-twisted insulated wires, has good work efficiency, and has low material costs.

[Means to solve the problem]

In the present invention, in order to realize an insulated IIG connection with ultra-fine twisted conductors, which is efficient in connection work and has low material costs, the insulator near each terminal of the insulated wire is removed and the conductor is The conductor connections and at least one of the insulated wires that are connected to each other by twist soldering are bent so that the insulated wires in the portions adjacent to the conductor connections are aligned approximately parallel to each other, and the approximately parallel portions of the insulated wires are bent. At least a portion of the insulated wires are inserted into a common insulating tube such that each insulated wire consists of an insulator connection connected to one another, the conductor connection being an insulating tape or an insulating tube, or both. The insulator connecting portion was configured to be located along the side surface of one of the adjacent insulated wires.

In the present invention, in order to realize a method for connecting insulated wires having ultra-fine twisted conductors, which has good work efficiency, low material cost, and ensures waterproof and moisture-proof connection parts, the insulated wires to be connected are Bend the insulated wires near the terminals so that they are lined up almost parallel to each other, insert a common insulating tube through the insulator of this part, connect the almost parallel insulated wires, and Twist and solder the conductor, bend it deeper, position the parallel section along either side of the insulated wire, cover the conductor connection with insulating tape and/or insulation camp, and close the parallel section. is fixed to the side of one of the insulated wires.

In the present invention, in order to realize a connection method that is particularly useful for connecting ultra-fine co-twisted insulated wires, has good work efficiency, low material costs, and ensures waterproof and moisture-proof connection parts, each of the connected Bend the ends of the single wires so that the single wires are lined up almost parallel to each other, insert a common insulating tube through the insulator of this part, connect the nearly parallel single wires to each other, and connect the conductors near the ends. Twist and solder the wire, then bend the single wire deeply and fix it in parallel (hereinafter,
The parallel part (called the parallel part) is positioned along one side of the insulated wire, and the connection part of the conductor is covered with insulating tape or an insulating cap, or both, and the parallel part is fixed to one side of the insulated wire. I did it like that.

It is preferable to use an insulating tube inserted through the parallel section with an inner diameter that circumscribes the collection of single wires in the parallel section or is slightly smaller than that (taking into account elongation).The material of the insulating tube should be flexible. , one that stretches is preferred. In particular, a material with high elasticity is preferred, and a heat-shrinkable tube is suitable for this purpose. This is because it is possible to use a wire with an inner diameter slightly larger than the circle circumscribing the collection of single wires in the parallel portion, so it is easy to insert the wire into the parallel portion, and the single wires can be firmly fixed to each other. Although the thickness of the insulating tube depends on the material, it is preferable that the wall thickness of the insulating tube be relatively thin. It is convenient for the work that the length of the insulating tube is 10 to 20 sn. The insulating tube may be formed by wrapping one or more wraps of single-sided adhesive insulating tape.

The insulating tape or insulating cap that covers the connection part of the conductor should be slightly larger than the circumscribed circle of the collection of single wires in the parallel part.
It is preferable that the inner diameter is equal to or slightly smaller than the outer diameter of the insulating tube inserted into the parallel portion. The material is preferably flexible, stretchable, and elastic.

The present invention is useful for connecting two terminals of the same type of insulated wire, for example, a cable of the same structure, but it is also useful for connecting two terminals of insulated wires of different structures, or for connecting three or more insulated wires of the same or different types. It can also be applied to connecting wire terminals.

[Effect]

The terminals of the insulated wires to be connected are bent so that they are lined up almost parallel to each other, and the common insulating tube is inserted to connect them to each other, so that when twisting is applied to the stranded ultra-thin diameter conductors, the twist does not return. First, twist soldering can be easily performed, and the connection work of insulated wires having ultra-fine twisted conductors can be efficiently performed without using expensive connection materials. After connecting the conductors, the parallel portion of the insulated wire is deeply bent, placed parallel to one side of the insulated wire, and the conductor connection portion is covered with insulating tape or an insulating cap, or both, so that the connection portion is It is firmly fixed to the insulated wire, and the connection part is reliably insulated and moisture-proof.

EXAMPLES The present invention will be explained in further detail by way of Examples below.

[Example 1] FIG. 1 shows an example of a connecting portion of a simultaneously twisted insulated wire according to the present invention.

The simultaneously twisted insulated wires 1a and lb to be connected are quad-twisted four core wires 11a and 12a, respectively.

13a, 14a, and 11b, 12b.

13b, 14b, and each corresponding core wire is connected to a connecting portion 21.
Connected at 22.23.24. That is, core wire 1
1a and llb are connected at a connecting portion 21, core wires 12a and 12b are connected at a connecting portion 22, core wires 13a and 13b are connected at a connecting portion 23, and core wires 14a and 14b are connected at a connecting portion 24. The connecting portions 21 and 22 are fixed to the insulated wire 1a with an insulating tape 8a, and the connecting portions 23 and 24 are fixed to the insulated wire 1b with an insulating tape 8b. In FIG. 1, only the inside of the connecting portion 21 is shown.

In the connection part 21, the core wires 11a and llb are each bent at the bending part 5 and lined up parallel to each other, and the conductors (stranded wires) 3a are exposed by removing the insulators at their terminal parts,
3b is twisted and soldered to a conductor connecting portion 3e, and the tip of the conductor connecting portion 3e is covered with an insulating tube 4.

Core wire 11a.

11b, a short insulating tube 6 is placed close to the bent portion 5. The end portions of the core wires 11a and llb from the vicinity of the bent portion 5 to the end of the conductor connection portion 3e are inserted into the insulating cap 7, and a tape 8 wrapped around the outer periphery of the insulating cap 7 is inserted into the insulating cap 7.
It is fixed to the insulated wire 1a together with the connecting portion 22 at point a. Double-sided adhesive tapes 9a and 9b are wrapped around the ends of the twisted portions of the insulated wires la and lb near the bent portion 5 to prevent untwisting and at the same time to help fix the connected portions.

The method of forming this connection part, that is, the method of connecting the insulated wires, is as shown in FIGS. 2(A) to 2(E).

As shown in FIG. 2(A), an insulated wire 1a.

Untwist near the terminal of wire 1b to form insulated wire 1a.

Wrap double-sided adhesive tape 9a around the terminal of the main body of 1b to prevent it from untwisting, and then wire 5, core wire 11a, Ilb
The terminal parts 21a and 21b of the twisted part are bent at a substantially right angle to the same side at the bent part 5 near the end of the twisted part so that they are lined up parallel to each other. Then, a short insulating tube 6 is passed through a position close to the bent portion 5, and the end portions 21a and 21b are connected to each other.

This connection may be a little loose, as long as the core wires 11a, 11b do not move easily. After connecting with the insulating tube 6, the parts 3c, 3d near the tips of the terminal parts 21a, 21b
The insulators 2a and 2b are removed to expose the conductors (stranded wires) 3a and 3b as shown in FIG. 2(B). The exposed conductors 3a and 3b are connected by twist soldering, as shown in FIG. 2(C), and the insulating tube 4 is placed over the connecting portion 3e of the conductors. Furthermore, the insulating cap 7 is inserted into the terminal parts 21a and 21b, and as shown in FIG. The bent portion 5 is further bent further to the angle along which the insulating cap 7 is adhered to the outer adhesive surface of the double-sided adhesive tape 9a. When the terminal parts of the core wires 12a and 12b are treated in the same manner, the terminal part 22c shown in FIG. 2(E) is formed (the inside of the terminal part 22c is not shown). When an insulating tape 8a is wrapped around the outside of the insulating cap 7.7 and fixed to the insulated wire 1a, a connecting portion 21.2 shown in FIG. 1 is formed.
2 is formed. When the terminal portions of the core wires 13a and 13b and the core wires 14a and 14b are treated in the same manner, the connecting portions 23 and 24 shown in FIG. 1 are formed, and the connection of the insulated wires 1a and 1b is completed.

In the above embodiments, a connection portion having a quad-twist structure has been described, but the present invention can be similarly applied to a connection portion having a pair-twist structure.

[Example 2] As shown in FIG. 3, the insulation cap 7 in Example 1
Instead, an insulating tube 41 with both ends open was used and inserted through the connecting portion and the outside of the core wire.

To make the connection, before bending the core wires 11a and llb to be connected at the bending part 5, insert the insulating tube 4 with both ends open.
1 is inserted into the core wire 11b.

After aligning the terminal portion 21a with the core wire 1a, the insulating tube 4
1 and cover the terminal portion 21a.

Then, the connection portion shown in FIG. 3 is formed.

Since the conductor at the connection part is open to the outside, it is moisture-proof and
Although not waterproof, insulated wires with stranded conductors of extremely small diameter can be efficiently connected using only inexpensive materials.

〔Effect of the invention〕

The connecting portion of the present invention is extremely useful as a connecting portion for insulated wires having twisted conductors of extremely small diameter. That is,
Connection work is efficient (material costs are low, and insulation and moisture proofing are ensured).

According to the connection method of the present invention, it is possible to efficiently connect insulated wires having twisted conductors of extremely small diameter using inexpensive materials. The connection method of the present invention is particularly useful for connecting ultrafine co-twisted insulated wires.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram showing an embodiment of the connection part of the simultaneous twist insulated wire according to the present invention - 1 Fig. 2 (A) or E) shows an example of the connection method of the simultaneous twist insulated wire according to the present invention FIG. 3 is an explanatory diagram showing a third embodiment of the connection portion of an insulated wire according to the present invention, and FIGS. An explanatory diagram showing a connection method, Fig. 5 is an explanatory diagram showing another connection method of a conventional insulated wire with twisted conductors, and Fig. 6 is a conventional insulated wire with an ultra-thin diameter conductor twisted together. FIG. 2 is an explanatory diagram showing a connection method. Explanation of symbols 1 a, 1 b--------------- Core wire, insulated wire 1 c, 1 d---Parallel part 2
a, 2 b-----Insulator 3 a
, 3 b-----One conductor 3 c,
3 d--・One terminal section 3 e ---------
---1 conductor connection part 4-1--Insulating tube 5--Bending portion 6--1--Insulating tube 7-- −・
- Insulating caps 8a, 8b...--1--Insulating tape 9a,
9 b---- Single-screen adhesive tape 11 a
, 1 l b ----- Single wire 12 a , 1
2 b------ Single wire 13 a, 13 b-
------Single wire 14 a, 14 b----
Single wire 21・---11---------
・−−−−−−−−−−−−−−−−・−Connection part 21
a.
−−1−−−−・−・−1−−−−−−Connection part 22
a, 22 b, 22 c-----One terminal section 23, 24-----------・-----・
−111−−−−−−−Connection part 41...−1−−−
--- Insulating sleeve 51 --- Insulating cap 61 --- Copper sleeve

Claims (4)

[Claims] (1) At least two conductors each having a conductor made of a plurality of twisted wires and an insulator covering the outer periphery of the conductor.
A conductor connection section where the insulated wires are connected to each other, the insulation near each end of the insulated wires is removed, the conductors are connected to each other by twist soldering, and the conductor connection section is covered with an insulating tape or an insulating tube. and at least one of the insulated wires is bent so that the portions of each insulated wire adjacent to the conductor connection portion are lined up substantially parallel to each other, and at least a portion of the insulated wires in the portions that are lined up in substantially parallel form a common wire. an insulator connecting part inserted into an insulating tube and each insulated wire is connected to each other, and the conductor connecting part and the insulator connecting part are inserted along a side surface of one adjacent part of the insulated wire. A connection part of an insulated wire, characterized in that: (2) In a method for connecting at least two insulated wires, each having a conductor made of a plurality of twisted wires and an insulator covering the outer periphery, the vicinity of at least one terminal of each insulated wire is Bend the insulated wires so that they are aligned substantially parallel to each other, insert a common insulating tube through at least a portion of the insulated wires in the substantially parallel portions, connect the insulated wires in the portions to each other, and connect the insulated wires in the portions that are connected to each other. The conductors near the terminals of the insulated wires are twisted and soldered to each other, and the joints of the conductors are covered with insulating tape and/or insulating caps, and at least one of the insulated wires is deeply bent, and the conductors near the terminals are A method for connecting insulated wires, which comprises fixing the wires to the side surfaces of the insulated wires so that the mutually fixed portions are along either side of the insulated wires. (3) A method for connecting the terminals of an insulated wire consisting of a plurality of wires each having two or more single wires each consisting of a conductor and an insulator covering the outer periphery of the conductor, the conductors being twisted together. Bend the vicinity of at least one end of the single wires so that each single wire is lined up almost parallel to each other,
At least a part of the single line in this almost parallel line,
Connect these single wires to each other by inserting a common insulating tube, connect the conductors near the terminals of the mutually connected single wires to each other by twist soldering, and wrap the connecting portions of the conductors with insulating tape or an insulating cap. or both, and at least one of the unconnected single wires is deeply bent so that the mutually connected single wires run along one side of the insulated wire. Method. (4) The method for connecting insulated wires according to claim 3, wherein the two or more single wires are twisted together.