KR100798012B1 - Data link module - Google Patents

Abstract

An object of the present invention is to provide a data link module in which the inconvenience of the link between devices is reduced.

The data link module of the present invention includes a cable in which one or more wires and a plurality of optical fibers are bundled together in a state in which a plurality of optical fibers are arranged in a plane, and one end surface of the cable extends in one end surface in a direction in which the cable extends. A plurality of substrates responsible for conversion between the electrical signal and the optical signal, arranged at positions optically coupled to the end surfaces of each of the plurality of optical fibers, at positions oriented to one end face on the substrate A signal medium conversion element, an electrical terminal electrically connected to a wire arranged in correspondence with one or more wires, and a plurality of signal medium conversion elements arranged in a position biased to an end surface opposite to one end surface of the substrate And an electrical connector that engages with another connector that is electrically connected to each of the electrical terminals.

Fiber Optics, Signal Media Converters, Electrical Connectors, Ferrules, Shields

Description

DATA LINK MODULE {DATA LINK MODULE}

1 is an external view of one embodiment of a data link module of the present invention;

FIG. 2 is an exploded perspective view of the connector shown in FIG. 1. FIG.

3 is a cross-sectional view of the connecting portion of the connector and the cable shown in FIG. 2;

4 is a cross-sectional view of the cable shown in FIG.

5 is a view showing a connection form of a board and a cable.

* Description of the symbols for the main parts of the drawings *

One… Data link module 2... connector

20... Substrate 21.. Board Body

211... Contact 22... LED part

22a, 23a... Fitting portions 220, 230... frame

221... Wire 222... LED

23... Electrical terminal section 231. Electric terminal

24... Electrical connector section 25.. cover

26... Housing body 260... Edge

3... Cable 30... Ferrule

30a... Insertion hole 30b for optical fiber; Insertion through hole for electric wire

31... Optical fiber 32... wire

321... Aluminum foil 33... shield

34... Shell 35. Core material

The present invention relates to a data link module for connecting between devices using a cable in which optical fibers and wires are integrated into one.

Recently, an optical fiber for transmitting optical signals due to an increase in communication speed, and a data link module for connecting between devices by using a cable in which wires for control signals or power supply are integrated into one is used.

As the above-described data link module, a configuration in which an electrical connector for electrical connection and an optical connector for optical connection are attached to both ends of the cable is proposed (see Patent Document 1).

[Patent Document 1] Japanese Patent Application Laid-Open No. 2005-51729

However, when the electrical link and the optical signal are transmitted between the devices by the data link module of the above proposal, there is a problem that at least four couplings are required and cumbersome.

In view of the above circumstances, it is an object of the present invention to provide a data link module which is less troublesome when connecting devices.

Data link module of the present invention for achieving the above object,

One or more wires and a plurality of optical fibers, the cables consisting of a bundle of the plurality of optical fibers arranged in a plane,

A substrate disposed at one end of the cable in one end face in a direction in which the cable extends;

An electrical signal arranged at a position biased to the one end face on the substrate, the optical signal being arranged at a position optically coupled to each end face of each of the plurality of optical fibers constituting the cable on one of the front and back surfaces of the substrate; A plurality of signal medium changing elements responsible for converting between and optical signals;

An electrical terminal electrically connected to the electric wire, disposed corresponding to one or more electric wires constituting the cable, at a position biased to the one end surface of the other of the front and back surfaces of the substrate;

An electrical connector coupled with another connector electrically connected with each of the plurality of signal medium conversion elements and each of the electrical terminals disposed at a position biased to an end surface opposite the one end surface of the substrate; It is characterized by one.

In the data link module of the present invention, both an optical signal and an electrical signal can be transmitted, while a coupling portion with the outside is integrated in the electrical connector. Therefore, according to the data link module of the present invention, the number of couplings can be reduced by half compared to the conventional method in which both electrical coupling and optical coupling are required, and the trouble of connecting between devices can be reduced.

Further, in the data link module of the present invention, since the end faces of the plurality of optical fibers arranged in a plane in the cable are optically coupled with the signal medium conversion element arranged on one of the front and back surfaces of the substrate, the data link of the present invention According to the module, it is possible to suppress the thickness of the substrate on which the signal medium conversion element is arranged and to suppress the occurrence of transmission error due to the distortion of the optical fiber.

Here, for the optical fiber insertion through-hole in which the front-end | tip part of the one end side of the several optical fiber which comprises the said cable was inserted, and the front-end | tip of the said one end side of the one or more electric wires which comprise the said cable were inserted and A ferrule having an insertion through hole,

Fitting with the ferrule fixed to the substrate, and fitting the ferrule with each other to optically couple each of the plurality of optical fibers to each of the plurality of signal medium conversion elements while simultaneously electrically connecting each of the one or more wires to each of the electrical terminals. It is preferable to provide the fitting part to connect with.

In this way, the cable can be easily replaced.

In addition, the cable has one or more electric wires constituting the cable and a shield covering the entire plurality of optical fibers, and it is also preferable to have a metal housing covering the substrate and a connection member connecting the shield and the housing. It is an aspect.

In this way, the adverse effects due to electromagnetic noise can be reduced, and the load on the cable can be prevented from being directly applied to the wire and the optical fiber.

According to the data link module of the present invention, troublesome when connecting devices can be reduced.

EMBODIMENT OF THE INVENTION Hereinafter, the Example of this invention is described.

1 is an external view of an embodiment of a data link module of the present invention.

The data link module 1 shown in FIG. 1 is composed of a cable 3 composed of eight wires and four optical fibers bundled together, and an electrical signal between the devices, which is composed of a connector 2 attached to both ends of the cable 3. And the optical signal are both transmitted.

In FIG. 1, the electrical connector part 24 which is the part joined with the exterior which is mentioned later in detail at the front-end | tip of the connector 2 is shown.

FIG. 2 is an exploded perspective view of the connector shown in FIG. 1. FIG.

In FIG. 2, the form which this connector 2 consists of the housing main body 26, the cover 25, and the board | substrate 20 accommodated in is shown.

The board | substrate 20 arrange | positioned on the surface in the front and back surface of this board | substrate main body 21 as a position which was biased to the board | substrate main body 21 and the end surface of the side to which the cable 3 shown in FIG. 1 on this board | substrate main body is connected. (Light Emitting Diode) portion 22, the electric terminal portion 23 disposed on the rear surface of the front and back surfaces of the substrate main body 21, and the end surface on the side to which the cable 3 of the substrate main body 21 is connected. It consists of the electrical connector part 24 for engaging with another apparatus arrange | positioned in the position which is biased to the end surface of the opposite side to the side.

On the front and back of this board | substrate main body 21, the electric wiring which is not shown in FIG. 2 is mounted, and the LED 222 (refer FIG. 3) of the LED part 22 and the electric terminal 231 of the electric terminal part 23 are shown. (Refer FIG. 3) is electrically connected to the electrical wiring of the board | substrate main body 21. FIG. 2, the wire 221 which connects the LED 222 of this LED part 22 and the electrical wiring mounted on the board | substrate main body is shown.

In addition, the front and rear surfaces of the substrate main body 21 are mounted on the front and rear surfaces of the substrate main body 21 to connect the electrical connector portion 24 to the end surfaces on the opposite side to the end surfaces on the side to which the cable 3 is connected. The contact 211 connected with wiring is provided, and the electrical connector part 24 is electrically connected with the LED 222 and the electrical terminal 231 via these contacts 211. As shown in FIG. In addition, the substrate main body 21 is provided with a hole 21a used for positioning when embedded in the housing.

The inner bottom of the housing main body 26 is provided with a boss part 261 with a screw groove therein inserted into the hole 21a provided in the substrate main body 21. The lid 25 is covered with the boss 261 inserted through the hole 21a of the substrate main body 21 through the housing main body 26, and the stop 25 (not shown) is attached to the hole 25a provided in the cover. It is assembled by tightening screws. In addition, a fixing screw 262 is inserted into the hole 26b provided at the position where the electrical connector portion 24 of the housing main body 26 is fitted to fix the engagement with the connector of the other party.

3 is a cross-sectional view of the connecting portion of the connector and the cable shown in FIG. 2.

3, the LED part 22 fixed to the surface of the board | substrate main body 21 is shown, and the LED part 22 is comprised from the LED 222 and the frame 220. As shown in FIG.

3, the electric terminal part 23 fixed to the back surface of the board | substrate main body 21 is shown, and this electric terminal part 23 is comprised from the electric terminal 231 and the frame 230. As shown in FIG.

3, the optical fiber insertion passage hole 30a through which the ends of the optical fiber 31, the electric wire 32, and the optical fiber 31 constituting the cable 3 are inserted and the end of the electric wire 32 are inserted through. The plastic ferrule 30 provided with the inserted wire insertion hole 30b for electric wires is shown.

Here, the frame 220 of the LED unit 22 and the frame 230 of the electric terminal unit 23 are provided with fitting portions 22a and 23a for fitting with the ferrule 30 described above. By fitting the portions 22a and 23a and the ferrule 30, the optical fiber 31 is optically coupled to the LED 222, while the electric wire 32 is electrically connected to the electrical terminal 231.

In the data link module 1 of the present embodiment, optical and electrical transmission are possible, while a coupling portion with the outside is integrated in the electrical connector portion 24. Therefore, according to the data link module 1 of the present embodiment, the number of couplings can be reduced by half compared to the prior art which requires both electrical coupling and optical coupling, and it is possible to reduce the trouble of connecting between devices. Moreover, in this data link module 1, since the connection of the connector 2 and the cable 3 can be carried out only by fitting the fitting parts 22a and 23a and the ferrule 30, the cable 3 ) Can be easily exchanged.

Here, four LEDs 222 are arranged in this LED part 22 in the front side direction from the opposite side of FIG. 3, and are connected to the electrical wiring of the surface of the board | substrate main body 21. As shown in FIG. This is for thinning the thickness of the LED portion 22, and for the same purpose, the eight electrical terminals 231 are arranged in the electrical terminal portion 23 in the front side direction from the opposite side in FIG. Is connected to.

4 is a cross-sectional view of the cable shown in FIG.

The cross section of the cable 3 is shown by FIG. 4, and this cable 3 has 4 sets of the electric wires 32 wrapped in the aluminum foil 321 in two sets, and 4 arranged planarly in the cable. Two optical fibers 31 are covered with a metal shield 33 and then the shield 33 is covered with an outer shell 34. In addition, the core material 35 is inserted through the cable 3 such that the four optical fibers 33 are arranged in a plane in the cable.

In this data link module 1, the LED 222 and the electric terminal 231 are arranged on the substrate so that the thickness of the substrate 20 is small and thin, and accordingly, the optical fiber 31 is planar in the cable side in the cable side. By being in this state, the occurrence of transmission errors due to distortion of the optical fiber 31 is suppressed.

In addition, the electric wires 32 in this cable are once again covered by a metal shield 33 in a state in which the two wires 32 are surrounded by an aluminum foil 321, thereby shielding electromagnetic noise.

5 is a diagram illustrating a connection form between a board and a cable.

FIG. 5A shows a case where the fitting portions 22a and 23a of the LED unit 22 fixed to the substrate main body 21 and the ferrule 30 are fitted from the lid side.

5A shows a form in which the outer cover 34 near the end of the cable 3 is peeled off and the shield 33 is exposed.

In FIG. 5B, the substrate 21 in the state shown in FIG. 5 is accommodated in the housing main body 26, and the shield 33 exposed and peeled off is edged 260 of the housing main body 26 by the fastener 27. ) Is shown.

FIG. 5C shows a cross-sectional view of the cable 3 connected to the edge portion 260 of the housing main body 26 by the fasteners 27 shown in FIG. 5B.

As shown in Fig. 5, in the data link module 1 of the present embodiment, since the shield 33 of the cable 3 is connected to the housing body 26 of the connector 2 made of metal, the connector 2 is grounded. By doing so, adverse effects due to electromagnetic noise can be suppressed.

In the embodiment described above, the connection between the connector 2 and the cable 3 is made by fitting the fitting portions 22a and 23a of the connector 2 to the ferrule 30 of the cable 3. Although the example which made and demonstrated was demonstrated, this invention is not limited to this, It may be connected directly, without passing through the ferrule 30, Moreover, the cable 3 is not wrapped in a shield, and it is connected to the housing main body 26. It may not be connected with the clamp 27.

According to the data link module of the present invention, troublesome when connecting devices can be reduced.

Claims (3)

A cable comprising one or more wires and a plurality of optical fibers bundled together in a state in which the plurality of optical fibers are arranged in a plane; A substrate disposed at one end of the cable toward one end surface in a direction in which the cable extends; An electric position arranged at an optically coupled position to an end surface of each of the plurality of optical fibers constituting the cable on one of the front and back surfaces of the substrate, as a position biased to the one end surface on the substrate; A plurality of signal medium conversion elements in charge of conversion between a signal and an optical signal, An electrical terminal electrically connected to the electric wire, disposed corresponding to one or more electric wires constituting the cable, at a position biased to the one end surface of the other of the front and back surfaces of the substrate; An electrical connector coupled with another connector electrically connected with each of the plurality of signal medium conversion elements and each of the electrical terminals disposed at a position biased to an end surface opposite the one end surface of the substrate; Data link module, characterized in that. The method of claim 1, Insertion through-hole for the optical fiber through which the front end portion of the one end side of the plurality of optical fibers constituting the cable is inserted, and the insertion passage for the electric wire through which the front end portion of the one end side of one or more wires constituting the cable is inserted Ferrules with holes, Fitting the ferrule fixed to the substrate and fitting the ferrule to optically couple each of the plurality of optical fibers to each of the plurality of signal medium conversion elements while simultaneously electrically connecting each of the one or more wires to each of the electrical terminals. And a fitting portion for connecting with each other. The method of claim 1, The cable has a shield covering the entirety of one or more wires and a plurality of optical fibers constituting the cable, A metal housing covering the substrate, and And a connecting member for connecting the shield and the housing.

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