JPH1172627A - Method for packaging fiber type optical device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate substrate packaging with simple constitution by mounting a fiber type optical device at fixing fittings having solder-fixing terminals. SOLUTION: In the case at least one fiber type optical device 1 is packaged on an electric circuit board 6, the fixing fittings 2 capable of mounting the fiber type optical device 1 therein by a method of tightening the device, etc., are used. The fixing fittings 2 have the solder-fixing terminals 3 treated to allow good soldering by solder plating, etc. The solder-fixing terminals 3 are soldered to solder guide patterns 5 in the state of inserting a low-hardness insulating sheet 4 between the fixing fittings 2 and the electric circuit board 6, by which the fixing fittings 2 mounted with the fiber type optical device 1 may be packaged to the electric circuit board 6. The exertion of influence on the operation of the electric circuits by packaging of the fixing fittings 2 onto the electric circuit board 6 is eliminated by using the low-hardness insulating sheet 4 between the electric circuit board 6 and the fixing fittings 2 of the fiber type optical device 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for mounting a fiber-type optical device for fixing a functional optical fiber on an electric circuit board of a fiber-type optical device used by being enclosed in a cylindrical case.

[0002]

2. Description of the Related Art In the construction of a communication network using optical fibers, good connection characteristics with a line optical fiber can be obtained. Devices are heavily used. In recent years, the fiber-type optical device has been mounted on an electric circuit board inserted into a housing such as a relay device. Hereinafter, a conventional method of mounting a fiber-type optical device on an electric circuit board will be described with reference to FIG. In this mounting method, the fiber-type optical device 1 is mounted on the electric circuit board 6 by inserting and fixing a resin or metal clamp member 7 into a through hole 8 formed in the electric circuit board 6 and fixing the same to the fiber-type optical device 1. Is done.
As still another mounting method, there is a method of fixing the fiber-type optical device 1 directly on the electric circuit board 6 using the fixing resin 9.

[0003]

As described above, when the clamp member 7 is used in the conventional method of mounting a fiber-type optical device, it is necessary to form the through hole 8 in the electric circuit board 6, thereby making it difficult to design an electric circuit. On the other hand, there arises a problem of being restricted. In the method using the fixing resin 9, when the fiber type optical device needs to be replaced due to a change in specification or the like, the fiber type optical device 1 can be replaced.
In addition, it is difficult to remove the fixing resin 9 without damaging the electric circuit board 6, and if the fiber type optical device 1 is sealed in a metal case, the short circuit on the electric circuit board 6 may cause an electrical failure. Consideration must also be given to physical obstacles. Therefore, the present invention solves such a problem by using a simple structure on an electric circuit board that does not affect the circuit design and operation of the electric circuit while being easy to mount on an electric board like electric components. Provided is a method of fixing a fiber-type optical device to a fiber.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve these problems, and an object of the present invention is to provide a metal fitting having a solder fixing terminal for mounting at least one fiber type optical device on an electric circuit board. A method of mounting a fiber-type optical device, which is disposed in an opening and solders the fitting to the electric circuit board in a state where an insulator is inserted between the fitting and the electric circuit board.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a configuration of a fiber optical device produced by a method of mounting a fiber optical device according to one embodiment of the present invention, and FIG. 2 is a fiber optical device according to one embodiment of the present invention. FIG. 5 is an exploded perspective view when created by the mounting method of FIG. In FIG. 1, in the fiber type optical device of the present invention, 1 is a fiber type optical device, 2 is a fixture, 3 is a solder fixing terminal, 4 is a low hardness insulating sheet, 5 is a solder guide pattern,
6 comprises an electric circuit board.

A mounting method will be described with reference to FIGS. 1 and 2. When at least one fiber type optical device 1 is mounted on the electric circuit board 6, a fixing fitting 2 which can be mounted inside the fiber type optical device by a method such as tightening is used. The fixing fitting 2 has a solder fixing terminal 3 which is processed by solder plating or the like so that good soldering can be performed. With the low-hardness insulating sheet 4 inserted between the fixture 2 and the electric circuit board 6, the fiber fixing device 3 is soldered to the solder guide pattern 5 to solder the fiber-type optical device 1. The mounted fixture 2 can be mounted on the electric circuit board 6.

[0007]

According to the fiber type optical device mounting method according to the first aspect of the present invention, the fiber type optical device 1 is mounted on the fixture 2 having the solder fixing terminals 3 by using
The fiber type optical device 1 is connected to the solder fixing terminal 3.
Guide pattern 5 generated to enable soldering
On the electric circuit board 6 having the above-mentioned structure, it is possible to easily and reliably mount the electric circuit board 6 as one of the electric components without causing any electric trouble. By making the mounting on the fixing fitting 2 detachable, the fiber-type optical device 1 can be easily replaced without affecting the electric circuit board 6 due to a change in specification or the like. It becomes possible.

Next, according to the fiber type optical device mounting method of the second aspect, the solder fixing terminal 3 is a plane parallel to the mounting surface of the electric circuit board 6, and the solder fixing terminal 3 is mounted on the solder fixing terminal 3. Solder plating is applied to the electric circuit board 6
By forming the solder guide pattern 5 for soldering the solder fixing terminal 3 thereon, the through hole 8 is not formed in the electric circuit board 6 and the fiber-type optical Surface mounting of the device by soldering to the electric circuit board becomes possible.

Further, according to the fiber type optical device mounting method of the third aspect, the low hardness insulating sheet 4 is provided on the insulator inserted between the electric circuit board 6 and the fixture 2 of the fiber type optical device 1. By using, the electric circuit board 6
The low-hardness insulating sheet 4 is provided with an appropriate thickness without affecting the operation of the electric circuit by mounting the fixing bracket 2 thereon, so that the low-profile in the mounting area of the fixing bracket 2 is reduced. The fiber-type optical device 1 can be mounted on the electric circuit board 6 irrespective of the presence or absence of electric components.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a fiber-type optical device created by a method of mounting a fiber-type optical device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view when produced by a method of mounting a fiber type optical device according to an embodiment of the present invention.

FIG. 3 is a diagram illustrating a conventional method of mounting a fiber-type optical device.

[Explanation of symbols]

 1… Fiber type optical device 2… Fixing fixture 3… Solder fixing terminal 4… Low hardness insulating sheet 5… Solder guide pattern 6… Electrical circuit board 7… Clamping material 8… Through hole 9… Fixing resin

Claims (3)

[Claims] At least one fiber-type optical device is provided on an electric circuit board in an opening of a metal fitting having a solder fixing terminal for mounting the board, and insulation is provided between the metal fitting and the electric circuit board. A method of mounting a fiber-type optical device, wherein the metal fitting is soldered to the electric circuit board with a body inserted. 2. The method according to claim 1, wherein the solder fixing terminal is formed on a plane parallel to a mounting surface of the electric circuit board, and the solder fixing terminal is solder-plated on the electric circuit board. 2. The method for mounting a fiber-type optical device according to claim 1, wherein a solder guide pattern to be attached is formed. 3. The method for mounting a fiber-type optical device according to claim 1, wherein a low-hardness insulating sheet is used as an insulator inserted between the electric circuit board and a fixture of the fiber-type optical device.