JPH064327Y2 - Electrical / optical composite connector's female terminal - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a female terminal of an electrical / optical composite connector.

[Conventional technology and its problems]

In recent years, an optical cable has been used for signal transmission, and therefore, in a signal receiving / transmitting device, an optical cable is often installed together with an electric wire for driving together.

For this reason, an electric / optical composite cable in which an optical cable is integrally fixed to an electric wire has been developed, and further a terminal for connecting an end portion of the electric / optical composite cable has been developed.

The above terminal is a mail terminal of an electric / optical composite cable in which a wire ferrule is attached to a metal ferrule for fixing an optical fiber, but since a female terminal for connecting this mail terminal has not been developed so far, In the connection of the electric / optical composite cable, there were problems such as a large connector, a large number of parts, and complicated connection work.

[Means for solving problems]

The present invention has been made in view of such circumstances, and its gist is to fix a ferrule of a mail terminal with a linear projection and a leaf spring, and an optical fiber facing the ferrule. A holding cylinder is provided so as to communicate with each other, and a sheath retainer for fixing an electric wire and a core retainer for fixing a core wire whose sheath of the electric wire is removed are provided on the base side of the grasping cylinder. The female terminal of the electrical / optical composite connector is characterized in that the sheath retainer and the core retainer are integrally formed from a metal plate.

[Action]

In the above description, the ferrule of the mail terminal is fixed by being pressed against a plurality of linear protrusions provided on the surface facing the leaf spring by the leaf spring provided in the fixed barrel. Positioning is made more accurate by providing a groove in the central portion of the leaf spring so that the ferrule fits into the groove. The end face of the optical fiber in the ferrule is opposed to the end face of the optical fiber fixed to the gripping cylinder for optical coupling.

The electric wire is fixedly supported by the sheath retainer, and the tip of the electric wire is fixed to the core retainer with the coating removed. The electricity applied to the core wire retainer of the female terminal passes through the contact portion between the female terminal and the ferrule, and is applied to the electric wire fixed to the female terminal.

In this way, by sandwiching and fixing the ferrule of the mail terminal to the fixed barrel of the female terminal, optical coupling and electrical connection are made at the same time.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an explanatory view of a female terminal of the electric / optical composite connector of the present invention. In the figure, reference numeral 1 denotes a female terminal, which is composed of a grip cylinder 2 and a fixed cylinder 3 which are provided in communication with each other, and a sheath retainer 7 and a core wire retainer 8 attached to the base side of the grasp cylinder 2.

An optical cable 6 is fixed by caulking to the above-mentioned grip cylinder 2, and further, a sheath presser 7 and a core wire presser 8 attached to the base side of the grip cylinder 2 are provided with an electric wire 9 and a covering of this electric wire 9 respectively. The core wire 10 is fixed by caulking.

The fixed barrel 3 has a quadrangular cross section and a bottom surface is provided with a leaf spring 11 in which an extended portion of the surface is folded inward, and a groove 12 into which a ferrule is fitted is provided in a central portion of the leaf spring 11. There is. Further, two linear projections 13 for fixing the ferrule are provided on the upper surface facing the leaf spring 11 by press working.

The female terminal 1 is integrally formed from a metal plate and has a seam 14 in the axial direction.

FIG. 2 is a view showing a state in which the ferrule of the mail terminal is tightly attached to the fixed barrel of the female terminal of the embodiment, where a is a longitudinal sectional view and b is a lateral sectional view. In the figure, 4 is a mail terminal and 5 is a ferrule.

The ferrule 5 of the female terminal 4 is fixed by being pressed between the two linear projections 13 on the upper surface by the leaf spring 11 while being fitted in the groove 12 of the leaf spring 11 of the fixed barrel 3 of the female terminal 1. ing.

The end face of the optical fiber 15 in the ferrule 5 faces the end face of the optical fiber 15 'of the female terminal 1.

The electric wire 9'and its core wire 10 'are respectively connected to the sheath presser 7'and the core wire presser 8'of the mail terminal 4 by caulking. Electricity is provided between the ferrule 5 of the mail terminal 4 and the fixed barrel 3 of the female terminal 1. The electric wire 9 connected to the core retainer 8 of the female terminal 1 is energized.

The metal plate used for the female terminal of the present invention is made of brass, brass, or the like having excellent spring property and is suitable for fixing the ferrule.

[Effect of device]

According to the present invention, when connecting the electric / optical composite cable, the ferrule of the mail terminal is tightly attached to the fixed barrel of the female terminal, so that the optical coupling and the electrical connection can be performed at the same time. The ferrule is positioned by the linear protrusions in the fixed barrel and the groove of the leaf spring, and is pressed and fixed by the leaf spring so that the optical fibers can be accurately aligned with each other, and the connector can be downsized and the number of connecting parts can be reduced. Further, the female terminal is formed integrally with the metal plate, so that it is easy to manufacture.

[Brief description of drawings]

FIG. 1 is an explanatory view of a female terminal of an electric / optical composite connector showing an embodiment of the present invention, and FIG. 2 shows a state in which a female terminal ferrule is tightly attached to a fixed barrel of the female terminal of the same embodiment. In the figure, (a) is a vertical sectional view and (b) is a horizontal sectional view. DESCRIPTION OF SYMBOLS 1 ... Female terminal, 2 ... Grip tube, 3 ... Fixed tube, 4 ... Mail terminal, 5 is a ferrule, 6 ... Optical cable, 7, 7 '
... Sheath retainer, 8,8 '... Core wire retainer, 9,9' ... Electric wire,
10, 10 '... core wire, 11 ... leaf spring, 12 ... groove, 13 ... linear protrusion,
14 ... Seam, 15, 15 '... Optical fiber

Claims (2)

[Scope of utility model registration request] 1. A holding barrel, in which a ferrule of a mail terminal is fixed to a linear projection and a leaf spring, and a holding barrel to which an optical fiber facing the ferrule is fixed are provided in communication with each other. A sheath retainer for fixing the electric wire and a core retainer for fixing the core wire from which the coating of the electric wire has been removed are provided on the base side of the, and these fixed cylinder, gripping cylinder, sheath retainer and core retainer are integrally formed from a metal plate. Female terminal of the combined electric and optical connector characterized by the following features. 2. A female terminal for an electric / optical composite connector according to claim 1, wherein a groove for fixing the ferrule is provided in the leaf spring of the fixed cylinder.