JPS5926518Y2 - electrical connection structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electrical connection structure, and more particularly to an electrical connection structure for connecting multilayer cables.

A first conductor layer consisting of a plurality of parallel conductors spaced from each other and a second conductor layer spaced from the first conductor layer are completely embedded in an insulating material. Multilayer cables are known.

The second conductive layer may be a plurality of relatively thin conductive wires, a mesh formed of relatively thin conductive wires, or a shield made of conductive foil.

Since the second conductor layer is arranged in close proximity to the first conductor layer, when terminating such a multilayer cable, the terminal and its first conductor layer are brought into contact with the first conductor layer. In order to prevent the two conductor layers from coming into contact, it has conventionally been common to remove the second conductor layer near the connection.

However, this is not only a time-consuming and costly operation, but also has the problem that removing the shield may deteriorate the electrical characteristics of the cable.

In view of these circumstances, the present invention provides a multilayer cable connection in which one conductor layer and a terminal can be connected without removing the other conductor layer and without fear of contact with the other conductor layer. Its purpose is to provide structure.

The connection structure of the present invention includes a first conductor layer consisting of a plurality of elongated conductors arranged in parallel at intervals, and a second conductor layer arranged at intervals from the first conductor layer. a multi-layer cable completely embedded in an insulating material, with a contact section at one end and a conductor connection section at the other end consisting of a pair of pointed solid blades forming a conductor-receiving slot. The conductor connecting portion is pierced from the first conductor layer side and the conductor of the first conductor layer is pushed into the conductor receiving slot, thereby bringing the inner edge of the actual blade of the terminal into electrical contact with the conductor. In the electrical connection structure, a second conductive layer is provided in a portion of the physical blade adjacent to the tip that is pierced into the second conductive layer.
The second conductor layer is coated with an insulating coating that does not peel off due to friction with the conductor layer, and the second conductor layer and the terminal are electrically insulated.

Therefore, in the electrical connection structure of the present invention, there is no need to remove the shield (second conductor layer) of the connection part, which not only reduces work costs but also prevents almost any damage to the electrical characteristics of the cable. do not have.

Further, an insulating coating is applied to the entire surface of the blade, so that when the conductor is pushed into the slot of the blade, the insulating coating on the part that comes into contact with the conductor is peeled off due to friction with the conductor. You can.

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a perspective view of an example of a terminal used in the connection structure of the present invention.

In FIG. 1, the terminal 11 of this example is disclosed in U.S. Patent No. 38200.
It is similar to that described in No. 55 and is stamped from a metal sheet.

The terminal 11 consists of a main body part 15 having a contact part 12 at one end and a conductor rear connection part 13 at the other end.

The conductor connection 13 consists of a pair of solid blades 14 which are pointed at their ends so as to be able to pierce the layers of insulating material of a multilayer cable (described below), with a conductor receiving slot 16 formed therebetween.

An insulating coating 17 is applied to the conductor connection portion 13 and the main body portion 15.

FIG. 2 is a perspective view of a connection structure according to an embodiment of the present invention.

In FIG. 2, the multilayer flat cable 18 has a conventionally known structure, with a first layer consisting of a plurality of conductors 19 arranged parallel to each other at intervals; A second layer of relatively thin conductive wires 20 is completely embedded within the insulating material.

The actual blade 1 of the terminal 11 is attached to the multilayer cable 18.
4 and pushing the conductor 19 of the first layer in the multilayer cable 18 into the slot 16 to bring the conductor 19 and the terminal 11 into electrical contact.

When the conductor 19 enters its slot 16, in its final stage, a portion of the insulating coating 17 on the part of the blade 14 facing the slot 16 is removed from the conductor 19.
The terminal 11 and the conductive wire 19 come into electrical contact with each other.

As shown in FIG. 3, the actual blade 14 is
layer, but the insulating coating 17 prevents electrical contact between the conductor 20 and the terminal 11 of that second layer.

Note that, as shown in FIG. 4, a terminal 22 may be used in which an insulating coating 23 is applied only to the vicinity of the tip of the actual blade 21.

In actual use, the terminals 11-22 are housed within an insulating housing as described in the aforementioned US patent.

Further, as the insulating coating 17.23, for example,
Polyester, vinyl, urethane, enamel, acrylic acid, metal oxide, nylon epoxy, epoxy phenolic resin, etc. are used, and these coatings can be applied by dipping, spraying, coating, electro-deposition, etc. Alternatively, it may be passed through a fluidized bed of powder material.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an example of a terminal used in a connection structure according to an embodiment of the present invention, FIG. 2 is a perspective view of a connection structure according to an embodiment of the present invention, and FIG. FIG. 2 is a sectional view taken along the line 3-3, and FIG. 4 is a perspective view of a portion of another example of the terminal. 11, 22...terminal, 12...contact part, 14.21...actual blade, 16...
... Slot, 17.23 ... Insulating coating, 18 ... Multilayer flat cable, 19
゜20・・・Conducting wire.

Claims (2)

[Scope of utility model registration request] (1) A first conductor layer consisting of a plurality of elongated conductors arranged in parallel at intervals and a second conductor layer arranged at intervals from the first conductor layer within an insulating material. said conductor connection part of a terminal comprising a multilayer cable completely embedded in a multilayer cable having a contact portion at one end and a conductor connection part consisting of a pair of pointed utility blades forming a conductor receiving slot at the other end; pierce the first conductor layer from the side thereof and force the conductor of the first conductor layer into the conductor receiving slot, thereby bringing the inner edge of the working blade of the terminal into electrical contact with the conductor. In the connection structure, at least a portion of the utility blade 14.21 adjacent to the tip that pierces into the second conductor layer 20 is provided with an insulating coating 17.23 that does not come off due to friction with the second conductor layer. The second
An electrical connection structure characterized in that the conductor layer 20 and the terminals 11, 22 are electrically insulated. (2) The insulating coating 17 is applied over almost the entire surface of the blade 14, and the first layer conductor 1
9 is pushed into said slot 16.
9, a portion of the insulating coating 17 on the inner edge of the blade 14 facing the slot 16 side is peeled off, causing the first layer conductor 19 and the terminal 11.
22 is in electrical contact with each other, the electrical connection structure according to claim 1, which is a registered utility model.