JPH04261505A - Optical fiber connector - Google Patents

Abstract

PURPOSE:To prevent the electrostatic charge in the metallic part of a connecting plug part to be exposed to a high voltage so as to prevent a partial discharge, the danger to a human body by an electric shock and a secondary hazard by forming the housings of the connecting plug part as conductive housings. CONSTITUTION:The housings 2, 3, 10 of the connecting plug part 13 and a joint part 14 are formed conductive or the housings 2, 3 of the connecting plug part 13 are formed conductive to provide the potential of a photodetecting part through a ferrule part 1 and a sleeve holder 12 of a coupling part 14 as the remedy to prevent the electrostatic charge of the metallic part 4 packaged in the connecting plug part.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] This invention relates to optical fiber connectors,
In particular, the present invention relates to an optical fiber connector that is effective in preventing charging of a connector when using an optical fiber connector for equipment that is used at a high voltage potential.

0002

[Prior Art] Fig. 4 shows, for example, an F08 type twin-core optical fiber connector established in JIS-C-5977, model name CNF.
This is a structural diagram of the plug part of 08SPM250161. 1 is a ferrule, 2 is below the housing, 3 is on the housing, 4 is a lever, 5 is a spring, 6 is a washer, 7 is a stopper,
8 is a rubber holder, and 9 is an optical fiber cord. This connector, Fig. 5, is an F08 type dual-core optical fiber connector established in JIS-C-5977, model name CNF0.
In the structural diagram of the 8PAF1 coupling part (adapter), 10 shows a housing, 11 shows an elastic sleeve, and 12 shows a sleeve holder. In addition, FIG. 6 is a structural diagram of the model CNF08PAFQ connector part, 10 is the housing, and FIG. 7 is the plug part 13.
This shows a state in which the coupling unit 14 is coupled and transmits and receives optical signals.

Next, the operation will be explained. The optical signal is sent to the coupling part 14 through the optical fiber cord 9 and the ferrule 1 of the plug 13, and is given as an optical signal to a light receiving element (not shown) attached to the coupling part. Plug part 1
3 into the connecting part 14, the connecting part 14 and the plug part 13 are combined and locked, and the plug part 13 is released by pushing the lock lever 4 attached to the plug.
It has a structure that allows it to be removed by pulling.

0004

[Problems to be Solved by the Invention] Conventional optical fiber connectors are constructed as described above, so when used in high voltage circuits, the metal parts such as levers, springs, washers, etc. used in the plug portion are required. is at an intermediate potential, so it is charged,
Partial discharges caused noise, and when removing the optical fiber plug from the joint, there was a danger of electric shock to the human body.

[0005] This invention was made to solve the above-mentioned problems, and its purpose is to prevent charging by making the metal that is the intermediate potential part of the plug part the same potential as the connecting part. It is said that

[0006]

[Means for Solving the Problems] The optical fiber connector of the present invention has a structure in which, as a measure to prevent static electricity on the metal parts mounted on the connector, the housing of the connector and the coupling part is made conductive, or the connector is made electrically conductive. The housing is electrically conductive, and the potential of the light-receiving part is passed through the ferrule part and the sleeve holder of the coupling part.

[0007] The optical fiber connector of the present invention prevents the metal part of the plug part that is exposed to high voltage from being charged by making the housing of the plug part electrically conductive, thereby preventing partial discharge and protecting the human body from electric shock. prevention of danger to;
Secondary disasters can be prevented.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below with reference to the drawings. Example 1. Figure 1 shows the same structure as the conventional plug part 13, and the bottom part of the housing 2.
, the upper housing 3 are both made of electrically conductive material. Example 2. FIG. 2 shows the same structure as the coupling part 14 of one conventional structure, and the housing 10 is made of an electrically conductive material. Example 3. FIG. 3 shows the same structure as the coupling part 14 of another conventional structure, and the housing 10 is made of an electrically conductive material.

Next, the operation will be explained, but since the normal operation is the same as the conventional one, the explanation will be omitted. When transmitting a signal to a high voltage circuit, the optical fiber 9 is very advantageous in terms of transmission withstand voltage and noise transfer. However, the metal parts mounted on the joint 13 that are exposed to this high voltage, especially the detachment lever 4, are the parts that humans touch in order to attach and detach the joint 13 and the coupling part 14; Since these parts are charged even when the voltage application to the circuit is cut off, by discharging these potentials to the plug part 13 ferrule 1 and the light receiving part potential coupling part 14, there is no danger to the human body.

[0010] In the above embodiment, JIS-C-597
7. Although the F08 type has been described, similar effects can be expected for other types as well.

[0011]

As described above, according to the present invention, by making the housing of the connecting part and the joint part conductive and fixing the potential of the charged part to the potential of the joint part, the charged part disappears and noise is generated due to partial discharge. There will be no danger to the human body.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a first embodiment of the present invention, in which (a) is a front view, (b) is a partially sectional side view, and (c) is a bottom view.

FIG. 2 is a diagram showing a second embodiment of the present invention, in which (a) is a side view partially shown in cross section, and (b) is a front view.

FIG. 3 is a diagram showing a third embodiment of the present invention, in which (a) is a partially sectional side view, and (b) is a front view.

FIG. 4 is a diagram showing a plug part of a conventional optical fiber connector, in which (a) is a front view, (b) is a side view partially shown in cross section, and (
c) is a bottom view.

FIG. 5 is a diagram showing a coupling portion of a conventional optical fiber connector, in which (a) is a partially sectional side view, and (b) is a front view.

FIG. 6 is a diagram showing a conventional type of joint, in which (a) is a partially sectional side view, and (b) is a front view.

FIG. 7 is a side view of a conventional connector showing a state in which a plug part and a coupling part are coupled.

[Explanation of symbols]

1 Ferrule 2 Lower housing 3 On the housing 4 Lever 5 Spring 6 Washer 7 Stopper 8 Rubber holder 9 Optical fiber cord

Claims (2)

[Claims] 1. An optical fiber connector in which a charging member is used as a component for attaching and detaching the plug part and the coupling part, wherein the plug part and the coupling part are made of a conductive material and the light receiving part is made of a conductive material. Optical fiber connector with partial potential. 2. An optical fiber connector in which a charging member is used as a component for attaching and detaching the plug part and the coupling part, wherein the plug part is electrically conductive, and the elastic sleeve of the coupling part is passed through the ferrule part. , an optical fiber connector in which the light receiving part has a potential through a sleeve holder.