JP2000131566A - Front plate structure of optical connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate an adverse influence of laser light on a human body by arranging a shield lid which cuts off laser light from a radiation-side optical connector in the opening of a front plate. SOLUTION: The front plate 3 has the opening 3a which penetrates brom the front to the back. Then, the plate is equipped with the shield lid 5 which closes the opening 3a of the front plate 3 while the radiation-side optical connector 2 and incidence-side optical connector 4 are disconnected from each other and fixing metals 6 which are fixed and held on the main body of the front plate 3 and the shield lid 5 is held on the metal fittings 6 provided for the main body of the front plate 3 through a pivotal shaft (s) so that it can be opened and closed, and enabled to restore itself into the initial state (state wherein the opening 3a is closed) by a return spring (r). In this case, the lid restores itself into the initial state through the operation of the return spring (r) while the radiation-side optical connector 2 and incidence-side optical connector 4 are disconnected from each other, so the shield lid 5 rotates on the pivotal shaft (s) to close the opening 3a of the front plate 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical connector which is mounted on a printed circuit board. The present invention relates to a front plate structure in which a laser beam is surely shut off to ensure safety.

[0002]

2. Description of the Related Art In recent years, in the field of information communication, transmission processing using an optical cable has been carried out due to an increase in communication speed and an increase in the capacity of communication information. There is a tendency for more to be mounted.

The optical connector has a function of receiving a laser beam transmitted from an optical cable (hereinafter, referred to as an incident side optical connector) and a type of transmitting a laser beam to the optical cable through the optical connector (hereinafter, a radiation side optical connector). In particular, as shown in FIG. 8, in a structure in which the optical connector c is mounted on the printed board p and the laser light L is transmitted from the circuit of the printed board p to the optical cable through the optical connector c, the optical connector c Since the laser light is always radiated through the opening of the front plate B, it is necessary to block the laser light by some means when the radiation-side optical connector and the incident-side optical connector are not connected. This is because the laser light used is very dangerous for the human body, especially for the eyes, depending on its type. Conventionally, in order to avoid such a danger, as shown in FIGS. 9 (a) to 9 (c), a shielding lid F for shielding a laser beam is separately prepared (separate part) so as to be used for work such as testing of a circuit board. This was mounted on a front plate to block laser light.

[0004]

However, the conventional shut-off means is not efficient because it is necessary to attach and detach the lid every time the work is performed, and the shut-off lid may be lost. Because of the inconvenience of forgetting to attach the lid, the development of a front plate equipped with a laser light blocking mechanism has been urgently required.

It is an object of the present invention to propose a novel optical connector front plate structure that can solve the above-mentioned conventional problems.

[0006]

SUMMARY OF THE INVENTION The present invention is directed to a front plate interposed between a radiation optical connector for emitting laser light and a laser light incident optical connector connected to the radiation optical connector. The front plate has an opening that penetrates the main body and connects the radiation-side optical connector and the incident-side optical connector, and is swingably held in the opening through the main body of the front plate and the pivot shaft, A front plate structure of an optical connector, characterized in that an opening is closed when an optical connector is removed and a blocking lid for blocking laser light from a radiation side optical connector is provided.

The present invention also provides a front plate interposed between a radiation-side optical connector for emitting laser light and a laser-light incident-side optical connector connected to the radiation-side optical connector. An opening that penetrates the main body and connects the radiation-side optical connector and the incident-side optical connector; the opening is divided into at least two portions, each of which is held swingably with respect to the main body of the front plate; An opening of the optical connector, wherein the opening is closed by connecting the connectors to each other, and the opening is closed by removing the optical connector to shut off the laser light from the emission-side optical connector. It has a face plate structure.

The present invention also provides a front plate interposed between a radiation-side optical connector for emitting laser light and a laser-light incident-side optical connector connected to the radiation-side optical connector. An opening that penetrates the main body and connects the radiation-side optical connector and the incident-side optical connector; and a radiation-side optical connector that closes the opening when the optical connector is removed by sliding along the main body of the front plate. A front plate structure of an optical connector, characterized by having a blocking lid for blocking laser light from the optical connector.

Further, the present invention is a front plate interposed between a radiation side optical connector for emitting laser light and a laser light incident side optical connector connected to the radiation side optical connector. It has an opening that penetrates the main body and connects the radiation-side optical connector and the incident-side optical connector. The opening is held by the main body of the front plate so as to be swingable via a pivot shaft, and the opening and closing operation is performed. And a blocking cover slidable along the main body of the front plate.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, a blocking cover for blocking laser light is attached to a front plate, and an opening provided in the front plate is immediately closed by the blocking cover following the insertion / removal operation of the optical connector. This eliminates the hassle of attaching and removing the cover. Further, in addition to the lid not being lost, the opening is closed by the blocking lid following the removal operation of the optical connector, so that the laser beam does not enter the eyes.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described more specifically with reference to the drawings. 1 (a) and 1 (b) show the configuration of a front plate structure according to claim 1 of the present invention in a state where optical connectors are connected to each other and in a state where optical connectors are disconnected, respectively. The optical connector (radiation-side optical connector) 3 mounted on the substrate 1 and radiating the laser light is a front plate provided on the front surface of the radiation-side optical connector 2, and the front plate 3 is The through hole on the front and back has an opening 3a. Reference numeral 4 denotes an optical connector (incident optical connector) connected to the emitting optical connector 2. The incident optical connector 4 is connected to the emitting optical connector mounted on the substrate 1 through the opening 3 a of the front plate 3. Connecting.

Reference numeral 5 denotes a blocking cover for closing the opening 3a of the front plate 3 when the radiation side optical connector 2 and the incident side optical connector 4 are separated, and 6 denotes a fixing bracket fixedly held to the main body of the front plate 3. The blocking lid 5 is held by a fixing bracket 6 provided on the main body of the front plate 3 so as to be openable and closable via a pivot shaft s, and is restored to an initial state (a state in which the opening 3a is closed) by a return spring r. I can do it. Reference numeral 7 denotes an optical cable connected to the incident side optical connector 4.

The incident side optical connector 4 is connected to the radiation side optical connector 2.
In the case of connection with the light-emitting side connector, the incident-side optical connector 4 is inserted into the opening 3a of the front plate 3 in this state, and the radiation-side light is connected as shown in FIG. Connector 2
Connect with

Emission-side optical connector 2 and incidence-side optical connector 4
And the return spring r
In order to return to the initial state by the action of
As shown in (b), the front plate 3 is rotated around the pivot shaft s.
Is closed.

FIGS. 2A and 2B show an example of the structure of a front plate structure according to a second aspect of the present invention. The blocking lid 5 shown here has lid members 5a and 5b divided into upper and lower parts, and the lid members 5a and 5b are respectively attached to the fixing bracket 6 by a pivot shaft s.
When the incident-side optical connector 4 is connected to the emission-side optical connector 2 and the incident-side optical connector 4 is connected to the radiation-side optical connector 2, the state is as shown in FIG. In, the lid members 5a and 5b are immediately restored to the initial posture as shown in FIG. 2B by the action of the return spring r.

FIG. 3 shows only the blocking lid 5 shown in FIG. 2 and the components attached thereto.

FIGS. 4A and 4B show an example of a front plate structure according to claim 3 of the present invention. In this example, the fixing bracket 6 provided on the main body of the front plate 3 can house the shut-off lid 5 between the front plate 3 and the front plate 3 in a state of being in contact with the front plate 3. And a return spring r is disposed between the rear end of the blocking lid 5 of the fixing bracket 6 and the dead end of the fixing bracket 6. FIG. 4A shows the state of connection between the optical connector 4 and the incident side optical connector 4.

The incident side optical connector 4 is connected to the radiation side optical connector 2.
When it is further removed, the blocking lid 5 is immediately returned to the initial position, that is, to the position for closing the opening 3a of the front plate 3, as shown in FIG.

FIGS. 5A and 5B show an example of a front plate structure according to a fourth aspect of the present invention. In this example, the back surface of the front plate 3 (the side where the radiation-side optical connector 2 is arranged)
, A fixing bracket 6 is disposed on the front plate 3.
Holding the shutoff lid 5 for closing an opening 3a swingably arranged pivot axis s that can be moved along the front plate 3, the slide pin P with further spring r ₁ to the pivot shaft s rocking When the optical connector is connected, the blocking lid 5 disclosed herein is movably combined, and as shown in FIG. When the optical connector is detached, as shown in FIG. 6 (b), the shut-off lid 5 is moved above the front plate 3 together with the pivot shaft s. Moves downward together with the blocking lid 5, and the blocking lid 5 rotates around the pivot shaft s to remove and close the opening 3 a of the front plate 3 at the same time.

FIG. 7 is an exploded view of the members constituting the opening / closing mechanism of the blocking lid 5 shown in FIG. In the structure shown in FIGS. 5 (a) and 5 (b), the shut-off door 5 is provided on the back side of the front plate 3, that is, on the side where the printed circuit board or the like is arranged, and the opening / closing operation is performed there. Depending on the arrangement state of the substrate and the installation state of the radiation side optical connector, the opening / closing operation of the blocking lid 3 may be hindered, but in the present invention, the lid 5 is merely held rotatably around the pivot s. Instead, the pivot shaft s itself is moved in the vertical direction of the front plate, so that the installation space for the lid 5 can be reduced.

[0021]

In the front plate structure according to the first aspect of the present invention, since the opening cover of the front plate is provided with an opening / closing lid which can be opened and closed via the pivot shaft, the opening operation of the opening is only required. The optical connector can be connected, and when removing the optical connector, simply pull out the optical connector and the blocking lid rotates around the pivot axis to completely cover the opening in the front plate, so that the laser light from the radiation side optical connector is securely , It is possible to prevent an adverse effect on the human body by the laser light, and it is possible to significantly improve the operability in a circuit board test or the like. Further, in the front plate structure of the present invention, since the blocking lid is disposed on the main body of the front plate, loss of the lid,
Alternatively, it is possible to avoid forgetting to remove the lid.

In the front plate structure according to the second aspect of the present invention, since the blocking cover is made of at least two parts and is held swingably on the main body of the front plate, the connection of the optical connector can be reduced. Can be easily connected simply by pressing against the lid and pushing it in.When removing the optical connector, simply pull out the optical connector and the return spring closes the opening in the front plate by the action of the return spring, so the laser light is emitted. There is no radiation from the opening in the front panel. This front panel structure has the advantage that the opening and closing operation of the blocking lid does not require extra labor by humans.Since the blocking lid is arranged on the main body of the front panel, the lid is lost or the lid is forgotten or forgotten. There is no worries at all.

In the front plate structure according to the third aspect of the present invention, since the blocking cover slidable along the main body of the front plate is installed, the optical connector is connected only by sliding the blocking cover to open the opening. When the optical connector is removed, the laser light can be reliably blocked because the blocking cover closes the opening by the return spring only by removing the optical connector. Also, in this front plate structure, since the blocking lid is arranged on the main body of the front plate,
There is no worry about losing the lid or forgetting to remove or attach the lid.

Further, in the front plate structure according to the fourth aspect of the present invention, the shutoff lid is basically held swingably on the pivot shaft, but the pivotal shaft is opened and closed by the shutoff door. As it slides up and down along the front panel body according to the operation, it is possible to connect the connectors just by pressing the optical connector against the blocking lid and pushing it in as it is, pull out the connector when removing the optical connector The laser light is not inadvertently emitted because the blocking lid closes the opening of the front plate alone. Since the opening / closing operation of the shut-off lid is not required, the work of attaching and detaching the connector is easy, and the shut-off lid is arranged on the main body of the front plate as in the above-described front structure according to claims 1 to 3. Therefore, there is no need to worry about the lid being lost or the lid being forgotten or being attached.

[Brief description of the drawings]

FIGS. 1 (a) and 1 (b) are diagrams showing a configuration of a front plate structure according to the present invention in a state where a connector is attached and a state where a connector is detached, respectively.

FIGS. 2 (a) and 2 (b) are diagrams showing another example of the configuration of the front plate structure according to the present invention in a state where a connector is attached and a state where the connector is detached, respectively.

FIG. 3 is a diagram illustrating only the constituent article of FIG. 2 taken out.

FIGS. 4 (a) and 4 (b) are diagrams showing another configuration example of the front plate structure according to the present invention in a state where a connector is attached and a state where the connector is detached, respectively.

FIGS. 5 (a) and 5 (b) are views showing another configuration example of the front plate structure according to the present invention in a state where a connector is attached and a state where the connector is detached, respectively.

6 (a) to 6 (c) are explanatory views of the opening / closing state of a blocking cover in the front plate structure shown in FIG.

FIG. 7 is a view showing main components of the front plate structure shown in FIG. 5;

FIG. 8 is an explanatory diagram of a problem in a conventional front plate structure.

9 (a) to 9 (c) are views showing a conventional front plate structure.

[Explanation of symbols]

1 substrate 2 emission-side optical connector 3, front plate 3a opening 4 morphism side optical connector 5 blocking lid 6 fixing bracket 7 cable r return spring r ₁ spring c optical connector B, front plate P substrate L Laser beam

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tomoyuki Watanabe 6-12-1, Nishi-Shinjuku, Shinjuku-ku, Tokyo Inside Fujitsu I Network Systems Limited (72) Inventor Hiroyuki Takahashi 6, Nishi-Shinjuku, Shinjuku-ku, Tokyo 12-1 Fujitsu Eye Network Systems Co., Ltd. (72) Inventor Shigeo Watanabe 6-12-1, Nishi Shinjuku, Shinjuku-ku, Tokyo Fujitsu Eye Network Systems Co., Ltd. (72) Inventor Yoko Koike Tokyo 6-12-1, Nishi-Shinjuku, Shinjuku-ku Fujitsu I-Network Systems Co., Ltd. F-term (reference) 2H037 BA02 DA06 DA31

Claims (4)

[Claims] 1. A front plate interposed between a radiation-side optical connector for emitting laser light and a laser-light incident-side optical connector connected to the radiation-side optical connector, wherein the front plate penetrates the main body. Having an opening for connecting the emission-side optical connector and the incidence-side optical connector, and in the opening,
The main body of the front panel is provided with a shutoff lid that is swingably held via a pivot shaft, and that closes an opening when the optical connector is removed to shut off laser light from the emission side optical connector. A front plate structure of an optical connector. 2. A front plate interposed between a radiation optical connector for emitting laser light and a laser light incident optical connector connected to the radiation optical connector, wherein the front plate penetrates the main body. Having an opening for connecting the emission-side optical connector and the incidence-side optical connector, and in the opening,
At least two parts, each of which is swingably held with respect to the main body of the front plate and opened by the connection of the optical connectors, while the opening is closed by removing the optical connector, and the laser from the emission side optical connector is closed. A front plate structure of an optical connector, comprising a light blocking cover for blocking light. 3. A front plate interposed between a radiation side optical connector for emitting laser light and a laser light incident side optical connector connected to the radiation side optical connector, wherein the front plate penetrates the main body. And an opening for connecting the emission side optical connector and the incident side optical connector, and a laser light from the emission side optical connector when the optical connector is removed by sliding along the main body of the front plate. A front plate structure of an optical connector, comprising a blocking cover for blocking light. 4. A front plate interposed between a radiation side optical connector for emitting laser light and a laser light incident side optical connector connected to the radiation side optical connector, wherein the front plate penetrates the main body. Having an opening for connecting the emission-side optical connector and the incidence-side optical connector, and in the opening,
The main body of the front plate is provided with a blocking lid that is swingably held through a pivot shaft and that can slide along the main body of the front plate following the swing operation. And
Front plate structure of optical connector.