JP2021089397A - Blind connector for information propagation and temporary placement fitting for information propagation cable connector - Google Patents

Abstract

To provide a blind connector for information propagation with which it is possible to prevent damage to, or contamination of a connector (ferrule) in connection work and quickly perform accurate matching of a terminal with a cable in the connection work, and a temporary placement tool for information propagation cable connectors that uses this blind connector.SOLUTION: A blind connector 100 for information propagation is interposed between a connector 300 for information propagation cables and a receptacle 200 and protects both of these. The cable connector side of this blind connector for information propagation has a female structure that engages with a male connector, and its receptacle side has a male structure that engages with a female receptacle. Furthermore, this blind connector for information propagation has a sufficient capacity for shielding electromagnetic waves and beams of light on its signal propagation path. Removed optical cable connectors can be temporarily placed by a temporary placement tool that uses the blind connector for information propagation.SELECTED DRAWING: Figure 1

Description

The present invention provides a blind connector for information transmission, which is interposed between a receptacle on the device side and a connector for an information transmission cable connected to the receptacle, and a temporary holder for an information transmission cable connector using the blind connector, in detail. Has a sufficient shielding ability on the signal transmission path when it is installed, and when reconnecting, it is possible to connect to the original terminal by simply removing the information transmission blind connector. Regarding the temporary holder of the information transmission cable connector that was there.

The connection between the information transmission cable connector and the receptacle needs to be disconnected from the cable connector and the receptacle during the inspection work for the purpose of promptly performing the inspection after its installation.

However, this connector portion, particularly the connector portion of the optical cable, is extremely sensitive to contamination by dust and damage by physical external force, and it is necessary to protect this from contamination and damage during work.

On the other hand, it is an absolute requirement to reconnect the cable connector, which was disconnected during the work, to the receptacle at the exact same position, and it is an unmistakable work.

Patent Document 1 describes a connector structure having a shutter structure inside the connector portion and the inside being protected by the shutter when not connected.

Patent Document 2 describes a structure having a shutter on the plug insertion port side into which the connector is inserted, and realizes dustproofing on the device side.

Patent Document 3 describes a cap provided with an information display unit as a cap that can be attached to and detached from the connector.

Patent Document 4 describes an vacant core wire display jig provided with an information display unit connected to the vacant core wire (core wire) of the connector connection board.

JP-A-2009-139804 Japanese Unexamined Patent Publication No. 2006-220951 Japanese Unexamined Patent Publication No. 2009-37126 Japanese Unexamined Patent Publication No. 2005-258193

In the invention described in Patent Document 1 and the invention described in Patent Document 2, it is cost effective to incorporate an unnecessary shutter in all connectors and receptacles during connection, which occupies most of the usage time. This increase is unavoidable, and it is economically disadvantageous in that repairs such as replacement of the connector are required in the event of a failure of the shutter structure.
It is also possible to manually manage which terminal should be removed from which terminal and which terminal should be reconnected if there are several connectors, but when a large number of cable groups are the work targets, the management of them becomes complicated. Not only that, but there is a high possibility of human error at the reconnection location.

In the invention described in Patent Document 3 and the invention described in Patent Document 4, caps can be attached to both the connector and the receptacle side that have been disconnected during construction, and information on the connection position can be displayed. It takes time and effort to describe the information of the connection location on both the connector side and the receptacle side.
Therefore, it is an object of the present invention to prevent damage and contamination of the connector (ferrule) in this connection work, and to accurately and quickly match the terminal and the cable in the connection work.

The invention according to claim 1 is an information transmission blind connector interposed between a connector for an information transmission cable and a receptacle to protect both, and the connector side of the information transmission blind connector is engaged with a male connector. A blind connector for information transmission that has a matching female structure, and the receptacle side of this information transmission blind connector has a male structure that engages with the female receptacle, and has sufficient shielding ability on the signal transmission path. Is.

The information transmission cable is a cable such as an electric signal line or an optical fiber, and usually has a connector at the end which can be easily connected and disconnected.

On the other hand, the device side to which the connector is connected (such as an optical distribution frame) has a receptacle that can be engaged with the connector, and in some cases, the number of receptacles per device may be one to several tens. It should be noted that the engagement includes the relationship in which the male and female portions (concavities and convexities) are fitted to each other.

Even after it has been laid once, construction may be required due to various circumstances, such as changes near the cable line. In this case, it is necessary to disconnect the connector in order to quickly carry out the inspection after construction.

Therefore, the inventor has one information transmission blind connector, the cable side has a female structure that engages with the male structure of the connector, and the device side has a male structure that engages with the female structure of the receptacle. Is temporarily connected to the original receptacle on the device side via the information transmission blind connector (temporary placement of the cable side connector during work), and during the temporary connection, the information transmission blind has the same shielding ability as disconnection. He invented a connector and a temporary holder for an information transmission cable connector using the connector.

As a result, by inserting a blind connector for information transmission into each connector connection at the start of construction, a shield equivalent to disconnection (electrical insulation, shading, waterproofing, dustproofing, blocking against various disturbances such as electromagnetic fields) is provided. At the same time, it is possible to connect to the original terminal without making a mistake in the connection position when reconnecting.
Further, even when performing temporary connection / disconnection work, by using the information transmission blind connector according to the present invention, it is not necessary to secure a wide area, and even when working in a narrow place, High workability is maintained.
Further, since the information transmission blind connector according to the present invention is separate from the optical cable and the device, it can be used many times as long as the connector shapes match.

The technical idea of the present invention can be applied to the connector structure that can be applied to the information transmission blind connector according to the present invention, whether it is a general-purpose connector or a connector of a proprietary standard. ..

The invention according to claim 2 is the information transmission blind connector according to claim 1, wherein the information transmission by the information transmission cable is performed via an optical signal, and the shielding ability of the information transmission blind connector is light shielding. is there.

In the case of an optical signal, the material of the information transmission blind connector itself is not particularly limited, but it is preferable to manufacture it with an inexpensive material such as plastic similar to a normal connector or the like. In order to have the ability to sufficiently block optical signals, the material of the blind connector for information transmission may be used as it is as long as it can sufficiently block light, but if necessary, metal is placed on the straight line of the ferrule in the connector, which is the signal path. You may provide a light-shielding plate such as.

In the invention according to claim 3, the information transmission by the information transmission cable is performed via an electric signal, and the shielding ability of the information transmission blind connector is insulation. The information transmission blind connector according to claim 1. Is.

In the case of an electric signal, since the connector is connected to the device side by contact between metals, the blind connector for information transmission of the present invention is preferably made of a non-conducting material inserted between them. Normally, an inexpensive material such as plastic can sufficiently insulate, but when the voltage is high, a rubber material or the like may be provided in the middle of the blind connector for information transmission to improve the insulating capacity.
The present invention has been described above assuming a situation in which a cable-side connector having a male structure and a receptacle side having a female structure are frequently used, but due to special circumstances, the cable has been described. The technical idea of the present invention can be applied to a connector shape in which the side is a female structure and the device side is a male structure, a cable extension connector in which both the male side and the female side are cables, and the like.

The invention according to claim 4 is a temporary holder for an information transmission cable connector that locks the information transmission cable connector in a temporarily placed state by using the information transmission blind connector according to any one of claims 1 to 3. This is a temporary placement tool for an information transmission cable connector in which a plurality of the above-mentioned information transmission blind connectors are hooked and fixed in accordance with the arrangement of a plurality of receptacles.

By interposing the information transmission blind connector of the present invention between the information transmission cable connector and the receptacle during work, it is protected from contamination by dust, damage by physical external force, and equipment failure by unexpected noise transmission. However, since the connector can be attached and detached while maintaining the connection position in the device, it is possible to avoid mistakes in the reconnection location.
Further, even when performing temporary connection / disconnection work, by using the information transmission blind connector according to the present invention, it is not necessary to secure a wide area, and even when working in a narrow place, High workability is maintained.
Further, since the information transmission blind connector according to the present invention is separate from the optical cable and the device, it can be used many times as long as the connector shapes match.

In the invention according to claim 4, the information transmission cable connector is locked in the temporary placement state by using the temporary placement tool of the information transmission cable connector. For example, a plurality of information transmission blind connectors are inserted into and fixed to a plurality of mounting holes of the mounting member. After that, the cable connector is connected to the information transmission blind connector.
For example, a plurality of through holes arranged vertically and horizontally are formed on a flat plate (temporary holder), matched with the arrangement of receptacles on the device side, and a blind connector for information transmission is attached to and fixed to these through holes. Further, for each of the plurality of information transmission blind connectors fixed to the flat plate in this way, the information transmission cable connector removed from the receptacle on the device side is connected to the corresponding information transmission blind connector. As a result, a plurality of information transmission cable connectors are temporarily placed on this flat plate (temporary placement tool).

It is a perspective view which shows the state which the blind connector for information transmission which concerns on Example 1 of this invention is inserted between a connector and an apparatus. It is a perspective view which shows the blind connector for information transmission which concerns on Example 1 of this invention. It is a perspective view which shows the usage state of the blind connector for information transmission which concerns on Example 1 of this invention. It is a perspective view of the blind connector for information transmission which concerns on Example 2 of this invention. It is a perspective view which shows the temporary holder of the information transmission cable connector which concerns on Example 3 of this invention together with the information transmission blind connector. It is a perspective view which shows the cable connector side of the temporary place | fitting of the information transmission cable connector which concerns on Example 4 of this invention. It is a perspective view which shows the receptacle side of the temporary place | fitting of the information transmission cable connector which concerns on Example 4 of this invention. It is a perspective view which shows the fixed state of the information transmission blind connector in the temporary place | fitting of the information transmission cable connector which concerns on Example 4 of this invention.

Hereinafter, examples of the present invention will be described. The present invention is not limited to these examples.

(Example 1)
As shown in FIG. 1, in the information transmission blind connector (attachment) 100 according to the first embodiment of the present invention, the optical connector side portion thereof is the same as (same as) the receptacle portion (optical adapter) 200 of the wiring device. It has a female structure (of) and can be fitted (engageable) with the male structure of the optical connector 300 at the end of the cable. That is, it can be manufactured by using (copying) the design of a normal receptacle as it is.
On the other hand, the receptacle side portion of the information transmission blind connector 100 has the same male structure as the terminal portion of the optical connector (optical cable connector) 300. Therefore, this receptacle side portion (male structure) can be engaged (fitted) with the female structure of the device side receptacle. That is, it can be manufactured by using the design of a normal optical connector as it is.

Specifically, as shown in FIG. 2, the information transmission blind connector 100 has, for example, a substantially box-shaped main body 101 formed by resin molding, and one end side of the main body 101 is formed as a convex portion 102. , The other end side is manufactured as a concave portion 103. The convex portion 102 has the same shape and a predetermined protrusion length so that its outer shape can be fitted into the concave portion of the receptacle, and the concave portion 103 also corresponds to the convex shape of the optical connector. It has a recessed shape that can be fitted. Further, a pair of grooves 104 extending in the vertical direction are formed on both side walls of the convex portion 102 of the main body 101 from the center of the main body.

The information transmission blind connector 100 having these connection male-female structures (uneven structure, male-female structure) on both sides has a sufficiently short length as a whole. For this reason, normally, the optical connector 300 is indirectly connected (temporarily connected) to the receptacle 200 at the original connection position in a state that is not much different from when the optical connector 300 is directly connected to the receptacle 200 on the device side. can do.
Further, the information transmission blind connector 100 can be manufactured as a plastic molded product, and at that time, the main body can be made of a colored resin having a light-shielding function.

Therefore, during construction, the information transmission blind connector 100 is used for connecting and temporarily connecting a large number of optical connectors (optical cables) and a large number of receptacles (equipment). In response, connect individually in order. That is, after disconnecting the first receptacle and the optical connector, the information transmission blind connector 100 is attached between them to make a temporary connection. Specifically, the optical connector 300 is removed from the receptacle 200, and the optical connector 300 is fitted into the concave portion 103 of the information transmission blind connector 100. Next, the convex side portion 102 of the information transmission blind connector 100 is fitted into the recess of the receptacle 200. FIG. 3 shows the state of this temporary connection.
Next, the second blind connector 100 for information transmission is attached to it in the same procedure.
Further, when the blind connector 100 for information transmission according to the first embodiment of the present invention is no longer needed due to temporary connection in order, such as when the construction is completed, it is usually removed from the optical connector 300 and the receptacle 200. It is possible to easily return to the connected state of.

(Example 2)
FIG. 4 is a perspective view showing the information transmission blind connector 400 according to the second embodiment of the present invention. The information transmission blind connector 400 is obtained by adding a display unit 401 to the information transmission blind connector 100. This constitutes a rectangular flat inclined surface 401 having a predetermined area in a portion protruding from a part of the main body, and by marking this surface, the identification function between attachments can be exhibited. Needless to say, the other configurations are the same as those of the above embodiment.

(Example 3)
In the third embodiment of the present invention, the information transmission blind connector is not connected to the receptacle, that is, the information transmission cable connector removed from the receptacle can be temporarily placed. Further, in this case, the temporary placement includes the case where the information transmission blind connector to which the information transmission cable connector is connected is fitted and connected to the receptacle again.
That is, four blind connectors 100 for information transmission according to the first embodiment are arranged vertically (upper and lower) and hooked on the temporary holder 500. Then, the convex portions of the four information transmission cable connectors (optical connectors) 300, which are the ends of the four cables, are fitted to the concave side portions 103 of the four information transmission blind connectors 100, respectively. ..
As a result, the information transmission cable connector 100 is temporarily placed and hooked on the temporary placement tool 500. The degree of freedom in inspection work will increase.
Specifically, as shown in FIG. 5, the temporary holder 500 has a configuration in which a plurality of (about 4) blind connectors 100 for information transmission are detachably sandwiched between a pair of clip pieces 501 and 502. Is. Specifically, one clip piece 501 of the temporary holder 500 is U-shaped when viewed from the front, and the parallel upper portion 504 and lower portion 505 are integrally molded so as to protrude from the upright portion 505 with the same length. Has been done. The other clip piece 502 is arranged to face the upright portion 505, its upper end is rotatably connected to the tip of the upper portion, and the tip hook of the lower portion is rotatably connected to the hook hole 506 formed at the lower end portion. 507 is configured to be hookable. Further, the lengths of the upper portion 504 and the lower portion 505 are set to a width capable of sandwiching the concave side portion 103 which is the maximum width portion of the main body of the information transmission blind connector 100. In this case, the heights of the clip pieces 501 and 502 are formed so as to be able to hold the four blind connectors 100 at the same time. The clip piece 501.502 is, for example, a plastic plate material, and functions as a leaf spring that can be elastically deformed within a predetermined range.
As described above, the temporary placement tool 500 is obtained by clipping (sandwiching) a plurality of information transmission blind connectors 100 arranged in the vertical direction (vertical direction) in FIG. By having such a configuration, even if the number of optical connectors is large (for example, about 100), several can be attached and detached at the same time, so that workability is remarkably improved.
Further, the information transmission blind connector 100 once clipped can be connected (temporarily placed) to the corresponding receptacle. In this case, the temporary placement tool 500 is gripped and a plurality of information transmission blinds are held. The connector and multiple information transmission cable connectors connected to it can be pulled out at one time. This leads to improved workability. Furthermore, with respect to the information transmission cable connector in a state where the connection is once disconnected and the information transmission cable connector is reconnected to the receptacle via the information transmission blind connector, a plurality of information transmission blind connectors are collectively clipped by the temporary holder 500. You can also pull it out.
Other configurations are the same as those described in the first embodiment and will be omitted.

(Example 4)
6 to 8 are diagrams for explaining the temporary placement tool 600 according to the fourth embodiment of the present invention.
This temporary holder 600 is a 4 × 5 matrix in which a total of 20 identical through holes (square mounting holes), 4 in the vertical direction and 5 in the horizontal direction, are formed in a main body (tablet-shaped mounting member) 601 made of a rectangular plastic plate. It is formed by arranging it in a shape. The long side portion is provided with a holding portion formed in a U-shaped cross section by a leg plate 602 and a holding plate 604 in order to hook the main body 601 to a predetermined portion of peripheral equipment. It is possible to insert and fix a plurality of information transmission blind connectors 100 into each of the through holes of the main body 601 in a state of being hooked by the sandwiching portion.
That is, the temporary placement tool 600 of the information transmission cable connector can lock (hang) 20 information transmission blind connectors 100 at a time in the temporary placement state.
In the temporary placement tool 600, a plurality of mounting holes are provided in the main body 601 corresponding to the placement positions of the plurality of receptacles, and a plurality of information transmission blind connectors 100 are provided in these mounting holes. Each is inserted and fixed.

The insertion / fixing of the information transmission blind connector 100 into the mounting hole of the main body 601 of the temporary holder 600 is as follows.
First, for the blind connector 100, one having a groove 104 formed on the outer peripheral surface of the main body is prepared (used).
Next, the main body 101 of the blind connector 100 is inserted into the mounting hole of the main body 601 of the temporary holder 600, and the convex side portion 102 and the concave side portion 103 are projected from the mounting holes, respectively. In this case, the grooves 104 of each blind connector 100 are aligned in a straight line for each row.
After that, a strip-shaped slide plate 603 for holding is inserted into the groove 104 of the blind connector 100 (see FIG. 8). As a result, each blind connector 100 is fixed to each mounting hole, that is, the main body 601 of the temporary holder 600. When the blind connector 100 is pulled out from the main body 601, the operation is performed in the reverse order of the above.

As described above, the temporary holder 600 has a U-shaped holding portion formed by the leg plate 602 and the holding plate 604, and is hooked on a predetermined portion of the peripheral device by the holding portion. The blind connector 100 can be fixed. The optical cable connector 300 removed from the receptacle 200 on the device side is inserted and fixed to the blind connector 100 fixed to the temporary holder 600 with one touch. This facilitates the attachment / detachment of each optical cable connector 300 to each of the temporarily placed blind connectors 100.
As a result, the work (improvement of work efficiency) can be performed extremely smoothly as a temporary placement when the optical cable connector (along with the cable) 300 is removed from a large number of device-side receptacles 200 and reattached to the receptacle. Then, damage and contamination of the optical cable connector at this time can be reliably prevented.

The present invention is useful as a technique for a blind connector for information transmission and as a technique for a temporary placement tool when the blind connector for information transmission is temporarily placed by disconnection and reconnection work.

100 Blind connector for information transmission,
200 receptacles,
300 optical connector (information transmission cable connector),
400 Blind connector for information transmission,
Temporary holder for 500 information transmission cable connector,
600 Temporary holder for information transmission cable connector.

Claims (4)

It is a blind connector for information transmission that is interposed between the connector for the information transmission cable and the receptacle and protects both.
The connector side of the information transmission blind connector has a female structure that engages with the male connector, and the receptacle side of the information transmission blind connector has a male structure that engages with the female receptacle, and the signal transmission path thereof. A blind connector for information transmission that has sufficient shielding ability on the top. The information transmission blind connector according to claim 1, wherein the information transmission by the information transmission cable is performed via an optical signal, and the shielding ability of the information transmission blind connector is light shielding. The information transmission blind connector according to claim 1, wherein the information transmission by the information transmission cable is performed via an electric signal, and the shielding ability of the information transmission blind connector is an electrical insulation function. A temporary holder for an information transmission cable connector that locks the information transmission cable connector in a temporarily placed state by using the information transmission blind connector according to any one of claims 1 to 3.
A temporary holder for an information transmission cable connector in which a plurality of the above-mentioned information transmission blind connectors are hooked and fixed corresponding to the arrangement of a plurality of receptacles.

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