JP3107377U - Optical connector - Google Patents

Abstract

【Task】
Provided is an optical connector that is inexpensive and easy to use, and that is low-cost and suppresses connection errors even with optical cord wiring.
[Solution]
Ferrule 101 provided at the end of wiring optical cord 106, metal terminal 102 provided at the end of conducting wire 107, plug frame 105 in which these ferrule 101 and metal terminal 102 are arranged and accommodated, and a cover for accommodating these 103, a split sleeve 202 that accommodates the ferrule 101, a metal connection terminal 203 that electrically connects the metal terminal 102, and the split sleeve 202 and the metal connection terminal 203 are accommodated side by side. The optical connector includes an adapter 200 having two adapter housings 201, and two plugs 100 are fitted and connected to face each other from both adapters 200.
[Selection] Figure 3

Description

  The present invention relates to an optical connector that connects an optical connection portion and an electrical connection portion together.

  Wiring boards are prone to connection mistakes, so countermeasures are necessary. As a prior art example of a wiring board in which such a connection error countermeasure is taken, for example, a prior art document (Japanese Patent Laid-Open No. Hei 6-260235, name of invention “wiring connecting device and wiring connecting method”) is known. In the prior art described in this prior art document, a metal cable is guided by LED display, and one of six wires is used as a connection confirmation line for connection confirmation.

  In the prior art described in the prior art document, connection confirmation is performed using one of the six wires as a connection confirmation line. In recent years, there has been a demand for using an optical cord as a signal line instead of a metal cable, but there is a situation that it cannot be simply applied to a patch panel panel using an optical cord. If an optical connection cable in which the optical cords of the communication line and the connection confirmation line are run in parallel is used, an optical cord for the connection confirmation line, an E / O converter, and an O / E converter are provided so that the connection can be confirmed. There is a problem that the cost is significantly increased due to the necessity for the number of ports.

  Furthermore, in an optical connection cable in which a plurality of optical cords run side by side, it is necessary to face the connectors at the correct positions in the primary and secondary connector units, but the optical connection cable is difficult to bend by the plurality of optical cords. The position of the connector is shifted by the force from the side, so that the optical signal cannot be communicated well, and there is a possibility that a connection error occurs at this point. This connection mistake has a risk of making it difficult to manage because the connector is correctly connected in the primary and secondary side connector units, and the cause of the connection mistake is unknown.

  Therefore, the present invention has been made to solve the above-mentioned problems, and its purpose is to be inexpensive and easy to use, and to prevent the occurrence of connection mistakes at low cost even with optical cord wiring. It is to provide an optical connector.

The optical connector according to claim 1 of the present invention is as follows.
A ferrule provided at the end of the optical cord for wiring, a metal terminal provided at the end of the conductive wire, a plug frame in which the ferrule and the metal terminal are arranged and accommodated, and a plug frame, the optical cord for wiring, and the conductive wire are accommodated. A plug having a cover;
An adapter having a split sleeve that accommodates the ferrule, a metal connection terminal that electrically connects the metal terminals, and an adapter housing that accommodates the split sleeve and the metal connection terminals side by side;
And two plugs are fitted and connected to each other while facing each other.

An optical connector according to claim 2 of the present invention is
The optical connector according to claim 1,
The plug has a protrusion, and the adapter has a claw,
The widths of the protrusions and the claws are approximately equal in length, and the length is approximately equal to or greater than the width in which the ferrules and metal terminals are arranged.

An optical connector according to claim 3 of the present invention is
The optical connector according to claim 1 or 2,
The plug has a positioning protrusion on the ferrule side and / or the metal terminal side, and the adapter has a slot on the split sleeve side and / or the metal connection terminal side,
The protrusion is inserted into the slot and is connected while being positioned.

  According to the present invention as described above, it is possible to provide an optical connector that is inexpensive and easy to use, and that is low-cost and suppresses the occurrence of connection mistakes even with optical cord wiring.

  The best mode for carrying out the optical connector of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram of an optical connector plug according to the present embodiment, in which FIG. 1 (a) is a plan view, FIG. 1 (b) is a front view, and FIG. 1 (c) is a side view. 2A and 2B are configuration diagrams of the adapter of the optical connector of the present embodiment. FIG. 2A is a plan view, FIG. 2B is a front view, FIG. 2C is a side view, and FIG. It is sectional drawing. FIG. 3 is a cross-sectional view of the optical connector before connection. The plug 100 shown in FIG. 1 is connected to the adapter 200 shown in FIG. 2 as shown in FIG. Actually, the plug 100 is inserted from both ends of the adapter 200 for use.

  As shown in FIG. 1, the plug 100 includes a ferrule 101, a metal terminal 102, a cover 103, a hood 104, a plug frame 105, a wiring optical cord 106, and a conducting wire (metal wire) 107. Furthermore, as shown in FIG. 3, the plug 100 includes a tensile body 108, a strand 109, a spring 110, and a metal strand 111.

The wiring optical cord 106 and the conducting wire 107 are accommodated in the hood 104, and the outer coating is removed. The tensile body 108 and the strand 109 are drawn out from the optical cord 106 for wiring. The strand 109 is covered with a tensile body 108 and protected from tension. The end portion of the strand 109 is accommodated in the ferrule 101 and can be optically connected to the end surface of the ferrule 101. The ferrule 101 is urged by a spring 110. When another ferrule (not shown) is disposed against the ferrule 101, the optical end face always comes into contact with the optical surface by the urging force of the spring 110. Securely connected. It also absorbs mechanical position differences.
A metal strand 111 is accommodated in the conducting wire 107. A metal terminal 102 is electrically connected to the end of the metal strand 111.

As shown in FIGS. 1B and 3, the plug frame 105 is provided with holes 105a and 105b. The ferrule 101 is positioned in the hole 105a, and the metal terminal 102 is positioned in the hole 105b and supported by the plug frame 105. The ferrule 101 is disposed on the upper side and the metal terminal 102 is disposed on the lower side. Has been.
The hood 104 and the plug frame 105 are covered with a cover 103. As shown in FIGS. 1B and 1C, the cover 103 has two protrusions 103a on the left and right sides, and on the upper side as shown in FIGS. 1A, 1B and 1C. A positioning protrusion 103b is arranged. The protrusion 103a and the positioning protrusion 103b are used for positioning and fixing when connected to the adapter 200, and will be described later.

As shown in FIGS. 2 and 3, the adapter 200 includes an adapter housing 201, a split sleeve 202, and metal connection terminals 203.
The adapter housing 201 includes a slot 201a, a claw 201b, a flange portion 201c, and a square hole 201d. The adapter 200 is configured by bonding the flange portions 201c of the two adapter housings 201 together. As shown in FIG. 3, the split sleeve 202 is disposed at the center upper side of the adapter 200, the metal connection terminal 203 is disposed at the center lower side, and both ends thereof are positioned in the square holes 201d. Further, as shown in FIG. 2A, two slots 201a are arranged on both the upper front side and the rear side (left and right sides in the figure). Further, as shown in FIG. 2B, claws 201b are arranged on both the left and right sides in the square hole 201d. The connection using these will be described later.

  Next, connection between the plug 100 and the adapter 200 will be described. Plug 100 is inserted in the direction of arrow A shown in FIG. 3, and plug 100 is inserted into square hole 201 d of adapter 200. At this time, since the positioning projection 103b of the plug 100 is first fitted into the slot 201a of the adapter 200 for positioning, the optical connection portion and the electrical connection portion are not erroneously connected upside down.

  Subsequently, when inserted deeply, the ferrule 101 is disposed in the split sleeve 202 and the metal terminal 102 is disposed in the metal connection terminal 203. Finally, the positioning protrusion 103b of the plug 100 abuts on the back side of the slot 201a of the adapter 200. At this time, the protrusion 103 a of the plug 100 is locked and fixed to the claw 201 b of the adapter 200. The ferrule 101 is disposed in the split sleeve 202, and the metal terminal 102 is disposed on the metal connection terminal 203. At this time, the metal connection terminal 203 may be electrically connected by being smoothly inserted and removed by a mechanism portion such as a tulip contact (not shown).

  Although not shown, the plug 100 is also connected to the opposite side of the adapter 200. Then, the end portions of the ferrule 101 are abutted from both sides and optically connected. At this time, the spring 110 is pressed with an optimum force while absorbing the displacement of the mechanical position. Similarly, the metal terminal 102 is disposed on the metal connection terminal 203 and is electrically connected. In this way, the plugs 100 on both sides are fitted into the adapter 200 and are electrically and optically connected. An optical connector is like this.

The optical connector of this embodiment has been described above. However, various modifications are possible in this embodiment.
For example, in the present embodiment, as shown in FIG. 3, the width of the protrusion 103a of the plug 100 and the width a of the claw 201b of the adapter 200 in the vertical direction are substantially equal, and the length is equal to that of the split sleeve 202 and the metal. The width b is approximately equal to the width b in which the connection terminals 203 are arranged (the same width b in the ferrule 101 and the metal terminal 102). This ensures the retaining. In addition, since it is long in the vertical direction, for example, even when a force is applied only to the metal terminal 102 side, it is locked by the long protrusion 103a and the claw 201b, and the ferrule 101 and the metal terminal 102 move only within a predetermined distance. Maintain optical and electrical connections.
Further, the width of the protrusion 103a of the plug 100 and the width of the tab 201b of the adapter 200 are substantially equal to each other, and the length is made larger than the width in which the ferrule 101 and the metal terminal 102 are arranged so You may be sure.

In this embodiment, the plug 100 has the positioning protrusion 103b only on the ferrule side (upper side), and the adapter 200 has the slot 201a only on the split sleeve side (upper side), and the protrusion 103b is fitted in the slot 201a. It was the structure connected while being positioned.
However, the plug 100 has the positioning projection 103b only on the metal terminal side (lower side), and the adapter 200 has the slot 201a only on the metal connection terminal side (lower side), and the projection 103b is fitted into the slot 201a. It is good also as a structure connected while positioning.
Furthermore, the positioning protrusions 103b may be disposed on both the upper and lower sides of the plug 100, and the slots 201a may be disposed on the upper and lower sides of the adapter 200. In this case, it is considered that the positioning protrusion 103b slot 201a has a different width so that it is not mistakenly placed up and down.

  Note that the optical connector of this embodiment has been described as a single-fiber optical connector that performs one optical connection and one electrical connection. However, a two-fiber optical connector using a plug in which two ferrules and metal terminals are arranged and an adapter in which two split sleeves and two metal connection terminals are arranged may be used. Moreover, it is good also as a multi-core optical connector of 3 cores and 4 cores. These configurations are adopted as appropriate.

  In the optical connector described above, the optical connection and the electrical connection are made together with the connection, and if the electrical connection that is easy to detect is made, it can be determined that the optical connection is made, and the presence or absence of the optical connection is determined. It can be easily detected.

BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram of the plug of the optical connector of the best form for implementing this invention, Fig.1 (a) is a top view, FIG.1 (b) is a front view, FIG.1 (c) is a side view. It is a block diagram of the adapter of the optical connector of the best form for implementing this invention, Fig.2 (a) is a top view, FIG.2 (b) is a front view, FIG.2 (c) is a side view, FIG. (D) is a perspective sectional view. It is sectional drawing of the optical connector before a connection.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100: Plug 101: Ferrule 102: Metal terminal 103: Cover 103a: Protrusion 103b: Positioning protrusion 104: Hood 105: Plug frame 105a: Hole 105b: Hole 106: Optical cord for wiring 107: Conductor 108: Tensile body 109: Elementary wire 110: Spring 111: Metal strand 200: Adapter 201: Adapter housing 201a: Slot 201b: Claw 201c: Flange 201d: Square hole 202: Split sleeve 203: Metal connection terminal

Claims (3)

A ferrule provided at the end of the optical cord for wiring, a metal terminal provided at the end of the conducting wire, a plug frame in which these ferrule and metal terminal are arranged and accommodated, and a plug frame, the optical cord for wiring, and the conducting wire are accommodated A plug having a cover;
An adapter having a split sleeve that accommodates the ferrule, a metal connection terminal that electrically connects the metal terminals, and an adapter housing that accommodates the split sleeve and the metal connection terminals side by side;
With
An optical connector characterized in that two plugs are inserted and connected while facing each other from both adapters. The optical connector according to claim 1,
The plug has a protrusion, and the adapter has a claw,
An optical connector characterized in that the width of the protrusion and the width of the claw are substantially equal, and the length is substantially equal to or greater than the width of the ferrule and the metal terminal. The optical connector according to claim 1 or 2,
The plug has a positioning protrusion on the ferrule side and / or the metal terminal side, and the adapter has a slot on the split sleeve side and / or the metal connection terminal side,
An optical connector characterized in that a protrusion is inserted into a slot and positioned while being connected.

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