JPS593584Y2 - Photoelectric conversion connector - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a simple charging conversion connector using a BNC type connector.

Conventionally, this type of charging conversion connector has been constructed as shown in FIG. 1, for example.

That is, as shown in this figure, one electrode 2 of the charge conversion element 1 for receiving or emitting light is soldered to the center conductor 3, and the photoelectric conversion element 1 is connected by a jig 5 using the screw 4a of the connector 4. Fixed.

The optical fiber 7 inserted into the metal snow pro is fixed with an epoxy resin 8.

However, in this method, (1) the photoelectric conversion element 1 must be aligned with the optical fiber 7 while being fixed with the jig 5;

(2) There are drawbacks such as the need to hold the charging conversion element 1 and the fiber 7 for a long time until the resin 8 that fixes the optical fiber 7 hardens, which impairs work efficiency.

Furthermore, (3) external forces were dealt with by fixing the sheath 9 as shown in FIG. 1, but there was also the drawback that the entire connector became too long.

The present invention solves these drawbacks, and provides an optical fiber in which a first sleeve is fitted to the coating of the optical fiber at the end of the optical fiber, and at least a portion of the optical fiber is accommodated in the tube of the first sleeve. Put the second sleeve on itself,
The positions of both sleeves are fixed using a bonding agent.

Hereinafter, the configuration will be explained in detail with reference to the embodiments shown in FIGS. 2 to 4.

In FIG. 2, 1 is a charge conversion element, 2 is an electrode, 3 is a center conductor, 8 is an epoxy resin, 9 is a coating, 10 is an instant adhesive, 11 is a guide, 11a is a hole, 12 is a plate, 101
is the outer sleeve.

Now, when positioning the charging conversion element 1 and the fiber 7, the plate 12 and the outer sleeve 101 are each fixed and held on a positioning jig, and the positioning is performed.

When the alignment is completed, the guide 11 inserted in advance is fixed in position using instant adhesive as shown in the figure.

Once the adhesive has hardened, remove it from the alignment jig,
Epoxy resin is injected through hole 11a and hardened.

In other words, the work can be done without using the positioning jig until the epoxy resin is cured, improving efficiency.

Note that the guide 11 can also be an extended surface portion of the outer sleeve 101.

Next, FIG. 3 shows an example of the end treatment of an optical fiber.
101 is an outer sleeve, 102 is an inner sleeve 103 is Kevlar, 7 is a fiber, 9 is a coating, and 10 is an instant adhesive.

This is done using two types of metal sleeves, large and small, and first the outer sleeve is inserted, then a cut is made in the covering 9 in advance and the inner sleeve 102 is inserted.

As shown in the figure, attach the outer sleeve 101 that was inserted earlier to the inner sleeve 102 and kefir 10 with instant adhesive 10.
Fix 3.

As a result, the overall length was long because the positioning holding part and the covering fixing part were conventionally separate, but now they are overlapped, making it shorter.

Figure 4 shows an example of a charging conversion connector using an existing BNC type connector, 13 is a fixing screw, 14
is metal collar, 15 is resin collar, 16 is tail, 17
is a round shell.

The photoelectric conversion element 1 and the fiber 7 are combined into a unit 1 as shown in FIG. 2, and one electrode 2 of the photoelectric conversion element 1 is soldered to the center conductor 3.

As shown in FIG. 4, the fixing screw 13, metal collar 14, resin collar 15, tail 16, and round shell 17, which have already been inserted at the stage of alignment as a photoelectric conversion connector, are attached to the existing BNC. All you need to do is incorporate it into the type connector.

As is clear from the above explanation, according to the present invention, by integrating the fiber and the photoelectric conversion element, it is possible to form a single unit, and the fiber end can also be held and fixed by using two types of metal sleeves. can also serve as
Leads to improved work efficiency.

By fixing this unit to a BNC type connector, it is possible to construct a photoelectric conversion connector that can extremely easily transmit optical signals through fibers in the same way as connecting electrical signals with coaxial cables. , it is highly mass-producible and has achieved excellent cost reduction effects.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an example of a conventional charging conversion connector, and FIGS. 2 to 4 are structural sectional views showing an embodiment of the present invention. 1...Photoelectric conversion element, 2...Electrode, 3
... Center conductor, 4 ... BNC type connector, 4a ... Screw, 5 ... Jig, 6.
...Metal sleeve, 7...Fiber, 8
... Epoxy resin, 9 ... Coating, 10
... Instant adhesive, 11 ... Guide, 1
1a...hole, 12...plate, 13
...Fixing screw, 14...Metal collar,
15... Resin color, 16... Tail, 17... Round shell, 101, 102.
...Metal sleeve, 103...Kevlar

Claims (1)

[Scope of utility model registration request] A photoelectric conversion element, a plate on which the charging conversion element is mounted, an optical fiber having a coating, a first sleeve fitted into the coating of the optical fiber, and a portion of the first sleeve is accommodated in a tube. a second sleeve which is fitted onto the optical fiber itself in the form of a second sleeve;
A first adhesive that fixes the sleeve, a second adhesive that fixes the first sleeve to the plate with or without a guide, and a space formed after the fixation that connects the photoelectric conversion element to the photoelectric conversion element. A photoelectric conversion connector consisting of a hardened resin filled in the space near the tip of an optical fiber.