JPH0538777U - Optical fiber connector - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an optical contact on the outer peripheral surface of the plug end of an optical fiber so as to connect to an external electric wire so that an optical signal and electricity can be connected to a device with one touch using the same plug. [Constitution] Large diameter seat (2a) on the peripheral surface of the optical fiber (1)
Insulating plug consisting of a pin-shaped tip insertion part (2b)
(2) is provided, the contact terminals (4), (4 ') connected to the external electric wire (3) are exposed on the outer peripheral surface of the insertion part (2b) of the plug (2), and the plug (2) is inserted. The light receiving element (7) that receives the optical signal from the optical fiber (1) in the inner part of the outlet hole (6) of the electric device (5) and the contact terminal of the electric wire provided in the plug (2)
A structure provided with contacts (8), (8 ') that contact (4), (4').

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an optical fiber connector, and particularly to an optical fiber connector provided with an electrical contact for transmitting and receiving electric signals and electric power.

[0002]

[Prior Art]

 In general, an optical fiber has a plug at its tip for connecting to an electric device. This plug is formed by a thin insertion part that is inserted into the outlet of an electric device and a seat part that is in close contact with the outer surface of the outlet.

[0003]

[Problems to be solved by the device]

 Since such an optical fiber plug is exclusively for transmitting and receiving optical signals to and from the device, in order to transmit and receive electrical signals and power to and from the device, the plug connected to the electric wire and the outlet on the device side that receives it are required. Was required separately. Therefore, the mechanism becomes complicated and the operation of connecting to the device becomes complicated.

Therefore, in the present invention, an optical fiber connector is provided on the outer peripheral surface of the tip of the optical fiber plug so that an optical signal and electricity can be connected to a device with one touch by the same plug by connecting the external electrical wire. The main purpose is to provide.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, an optical fiber connector according to the present invention comprises an insertion part (2b) and a seat part (2a) with a tapered tip on the peripheral surface of the end part of the optical fiber (1). An insulating plug (2) is provided, and the contact terminals (4), (4 ') connected to the external electric wire (3) are exposed on the outer peripheral surface of the insertion portion (2b) of the plug (2) and the plug ( 2) The receiving element (7) that receives the optical signal from the optical fiber (1) and the electric wire provided on the plug (2) in the inner part of the outlet hole (6) of the electrical equipment (5) The contact terminals (4) and (4 ′) are provided with contacts (8) and (8 ′). Further, in the present invention, the contact terminals (4) and (4 ') are connected to the horizontal line (L) passing through the axial center of the optical fiber (1) at the left and right sides of the insertion part (2b) of the plug (2). We also propose a structure to be placed above.

[0006]

[Action]

 In the optical fiber connector configured as described above, when the plug (2) is inserted into the outlet hole (6) of the electrical device (5) to be connected, the contact terminals (4), (4) connected to the external electric wire (3) are connected. ') Is electrically connected to the contacts (8), (8') on the electric device (5) side, and at the same time, the light receiving element (7) can receive the optical signal from the optical fiber (1), As a result, the optical signal and the electric signal or power from the external electric wire (3) can be transmitted and received at the same time.

[0007]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2 show a first embodiment of the present invention, in which reference numeral (1) indicates an optical fiber. An insulating plug (2) including a large-diameter seat portion (2a) and a thin pin-shaped tip insertion portion (2b) is provided on the peripheral surface of the end portion of the optical fiber (1). Then, the lead wires (3a) and (3a) connected to the external electric wire (3) are embedded in the plug (2), and the contact terminals (4) and (4) connected to the lead wires (3a) and (3a), respectively. ') Is exposed on the outer peripheral surface of the insertion portion (2b). A joint terminal (9) is provided at the outer end of the external electric wire (3). In addition, the light receiving element that receives the optical signal from the optical fiber (1) when the plug (2) is inserted into the inner part of the outlet hole (6) of the electric device (5) into which this plug (2) is inserted. (7) and contacts (8), (8 ') for contacting the contact terminals (4), (4') of the electric wire provided on the plug (2) are provided.

In the optical fiber connector configured as described above, by inserting the plug (2) into the outlet hole (6) of the electric device (5) to be connected, the optical signal from the optical fiber (1) and It is possible to send and receive electrical signals and power from the external electric wire (3) at the same time. The contacts (8), (8 ') provided on the electric device side are not limited to the configurations shown in the figure, and the plug (2) is inserted into the outlet hole (6). Any structure may be used as long as it is electrically connected to the contact terminals (4) and (4 ') of the plug at the time of contact.

FIGS. 3 and 4 show a second embodiment of the present invention. When the plug (2) is inserted into the outlet hole (6), the electric contact terminals (4), ( Care has been taken to prevent the optical fiber (1), the light receiving element (7) and the optical axis from shifting due to the contact pressure due to 4 '). In this embodiment, the plug (2) and the outlet hole (6) into which the plug (2) is inserted are formed in a substantially quadrangular cross section, and the optical fiber (6) is formed on the left and right side surfaces of the insertion portion (2b) of the plug (2). The electric contact terminals (4) and (4 ') are provided on the horizontal line (L) passing through the axis center of 1). As a result, when the insertion part (2b) is inserted into the outlet hole (6), the contact pressure applied to the plug insertion part (2b) is balanced from the left-right symmetrical direction along the line (L) passing through the optical axis. It is well loaded, and the optical axis of the optical fiber (1) with respect to the light receiving element (7) can be prevented from deviating in advance, and deterioration of optical performance and jitter deterioration can be prevented. The electric contacts (8) and (8 ') provided on the side of the outlet hole (6) also have a horizontal line (L) passing through the optical axis of the light receiving element (7) as shown in (a) of FIG. It will be necessary to place it above.

Although a typical embodiment of the present invention has been described above, the present invention is not necessarily limited to only the above-described embodiment structure. For example, the plug (2) and the outlet hole (6) of the second embodiment described above may have a columnar shape instead of a quadrangular cross section, and the other constituent features of the present invention and the effect are obtained. It can be implemented by appropriately changing it within the range of possession.

[0011]

[Effect of the device]

 Since the present invention is configured as described above, the one-touch operation of inserting the optical fiber plug (2) into the outlet of the electrical equipment simultaneously transmits and receives the optical signal from the optical fiber and the electrical signal and power from the external electric wire. As a result, the number of connectors by plugs and outlets is reduced, the configuration and the connecting operation are significantly simplified, and the cost can be reduced. If the electrical contact terminals are provided on the left and right sides of the plug insertion part on a horizontal line that passes through the optical fiber axis center, the plug insertion part will be connected when the insertion part is inserted into the outlet hole. The contact pressure is applied in a well-balanced direction along the line passing through the optical axis to prevent the optical axis of the optical fiber from shifting relative to the light receiving element, preventing deterioration of optical performance and preventing jitter deterioration. There is a remarkable effect such as

[Brief description of drawings]

FIG. 1 is a side view of a plug portion of a connector according to a first embodiment of the present invention.

FIG. 2 is an enlarged sectional view of the connector.

FIG. 3 is a perspective view showing a second embodiment of the connector according to the present invention.

FIG. 4 is an explanatory diagram showing the main points of the outlet shown in FIG.

[Explanation of symbols]

 (1) Optical fiber (2) Plug (2a) Plug seat (2b) Plug tip insertion part (3) External wire (3a) Lead wire connected to external wire (4) Contact terminal (5) Electrical device (6) Outlet hole (7) Light receiving element (8) Contact for electrical equipment

Claims (2)

[Scope of utility model registration request] 1. An insulative plug comprising an insertion portion (2b) and a seat portion (2a) each having a narrowed tip on the peripheral surface of an end portion of an optical fiber (1).
(2) is provided, and the contact terminals (4) and (4 ') connected to the external electric wire (3) are
While being exposed on the outer peripheral surface of the insertion portion (2b) of the plug (2), at the back of the outlet hole (6) of the electrical device (5) into which the plug (2) is inserted, from the optical fiber (1) A light receiving element (7) for receiving an optical signal, and a contact (8), (8 ') for contacting the contact terminals (4), (4') of the wire provided on the plug (2), Fiber optic connector. 2. A horizontal line (L) passing through the axial center of the optical fiber (1) on the left and right sides of the insertion part (2b) of the plug (2), wherein the contact terminals (4), (4 ') The fiber optic connector of claim 1 disposed above.