KR100895533B1 - Multi fiber optical switch module - Google Patents

Abstract

A multi-core type fiber optical switch for drawing out an optical cable backward and forward is provided to smoothly rotate a common port optical cable according to the rotation of a rotating arm by making the common port optical cable pass through a bearing which together rotates according to the rotation of the common port optical cable. A rotating arm(50) is inserted into a lens insertion hole(51) and is rotated according to the rotation of a motor. A common port optical cable(55) is cabled forward by being joined with a lens(52) installed at the rotating arm. A bearing(70) is mounted in a bearing mounting hole(61a). The common port optical cable is inserted into the bearing. According to the rotation of the common port optical cable, the bearing is rotated to support the common port optical cable.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a multifiber fiber optic switch module,

The present invention relates to a multi-core fiber optical switch module used for optical loss measurement and reliability testing of optical communication products, and more particularly to a multi-core fiber optical switch module capable of stably supporting a common port optical cable to improve product reliability and reduce wear on a common port optical cable So that the rotating operation of the common port optical cable interlocking with the rotary arm can be smoothly performed, thereby preventing the rotation failure of the rotary arm and allowing the photo interrupts to perform the reference position positioning based on the rotation of the sensing sling, And more particularly, to a multi-core fiber optical switch module for pulling out an optical cable in front and back so as to be able to improve the reliability of the product by preventing the defective position positioning and realizing stabilization.

In general, an optical switch is used in a test and system field related to optical communication and optics, and is used between an optical tester and an object to be tested.

As a conventional technology related to such an optical switch, there is disclosed a " noncontact optical switch and motor control method using a micro optical element and a coaxial holder " in Japanese Patent Application Laid-Open No. 2001-0094690, Small optical switch "is known.

The "non-contact type optical switch and motor control method using a micro-optical element and a coaxial holder" disclosed in Japanese Laid-Open Patent Publication No. 2001-0094690 and the "low-loss small-size optical switch" disclosed in the registered utility model No. 20-0243549 are all simply referred to as horizontal lines And the common port is also positioned on the horizontal line so as to reduce the insertion loss. The detailed description thereof will be omitted because it is disclosed in detail in the publication.

However, the above-described conventional techniques have the following problems.

First, since the common port optical cable is installed through the base (or the pedestal), it may not rotate smoothly. As a result, there is a problem in reliability of operation of the rotary arm and wear due to rotation.

Second, in case of "non-contact type optical switch and motor control method using micro optical element and coaxial holder" disclosed in Japanese Patent Laid-Open Publication No. 2001-0094690, a blocker for checking the reference point is provided on the extension line of the motor central axis, And a photo interrupter having a light blocking hole in the range of rotation angles of the breaker so as to confirm the reference point by using a breaker of the rotor, thereby confirming the reference position. In the "low-loss In the case of a small optical switch, the photo interrupter is fixed to a support plate on which a motor support is fixed by separating the photointerrupter from the rotary plate, but both of them are fixed to the support plate or the pedestal and positioned below the lens array plate Therefore, there is a problem that errors occur frequently.

It is an object of the present invention to provide a multi-core fiber optical switch module, which is designed to solve the problems of the prior art as described above,

First, by forming a bearing mounting hole and inserting a bearing in the bearing mounting hole, the common port optical cable is passed through the bearing rotating together with the rotation of the common port optical cable, so that the common port optical cable can be smoothly rotated Also, it is possible to stably support the rotating common port optical cable, thereby improving the reliability of the product and reducing the wear of the common port optical cable,

Second, by providing the common port optical cable support guide, the rotation operation of the common port optical cable interlocking with the rotating rotary arm can be smoothly performed, thereby preventing the defective rotation of the rotary arm and improving the reliability of the product,

Third, by aligning the common port optical cable support guide and the bearing, the common port optical cable can be taken out so as to coincide with the front shaft of the motor rather than the bottom of the base, so that the processing of the common port optical cable can be stably performed. Wear of the product can be prevented, reliability of the product can be improved,

Fourth, a photo interrupter is mounted on a separate photointerruption mount, the motor is implemented with both axes of a front shaft and a rear shaft protruding forward and rearward, a sensing slit is provided on a rear shaft, and a rotation of the sensing slit is sensed. By allowing the photointerrupter to perform the reference position positioning based on the rotation of the sling, it is possible to prevent the failure of the reference position positioning and realize the stabilization, thereby pulling the optical cable back and forth so that the product reliability can be improved Optical fiber switch module.

According to an aspect of the present invention, there is provided a multi-core fiber optical switch module for pulling out an optical cable in front and back, comprising: a base; A motor housing mounted on the base; A motor that is installed in the motor housing and is provided with a front shaft and a rear shaft protruding in both front and rear directions, and rotates at an angle set by the control of the controller; A sensing slit formed on a rear shaft of the motor and having a positioning holle; A photointerruption mount mounted on a rear end of the motor housing; A photointerrupter fixed to the photointerrupt mount and detecting a positioning hole of the sensing slit and outputting a reference position detection signal to a controller; A lens array plate having a central through hole through which the front shaft of the motor passes, the lens array plate being installed at a front end of the motor housing and having a plurality of lens insertion holes formed along a circumference thereof and having a lens in the lens insertion hole; A plurality of general-purpose port optical fibers which are respectively attached to the plurality of lenses provided on the lens array plate and are cabled rearward; And a lens that is aligned with the lens provided on the lens array plate and rotates in accordance with the rotation of the motor while the lens is rotated through rotation of the motor, A rotary arm inserted in the hole; A common port optical cable coupled to the lens inserted in the rotary arm and cabled forward; A cable supporting block mounted on the base in front of the lens array plate and having a bearing mounting hole formed upwardly spaced from the base; And a bearing mounted on the bearing mounting hole for interpolating the common port optical cable to rotate the inner ring in accordance with rotation of the common port optical cable to rotate and support the common port optical cable.

The multi-core fiber optical switch module according to the present invention has the following effects.

First, by forming a bearing mounting hole and inserting a bearing in the bearing mounting hole, the common port optical cable is passed through the bearing rotating together with the rotation of the common port optical cable, so that the common port optical cable can be smoothly rotated Also, it is possible to stably support the rotating common port optical cable, thereby improving the reliability of the product and reducing the wear of the common port optical cable.

Second, by providing the common port optical fiber supporting guide, it is possible to smoothly perform the rotation operation of the common port optical cable interlocked with the rotating rotary arm, thereby preventing the defective rotation of the rotary arm and improving the reliability of the product .

Third, by aligning the common port optical cable supporting guide and the bearing, the common port optical cable can be drawn out substantially coinciding with the front shaft of the motor, not the bottom of the base, so that the cabling process of the common port optical cable can be stably performed, The wear of the common port optical cable can be prevented, and the reliability of the product can be improved.

Fourth, a photo interrupter is mounted on a separate photointerruption mount, the motor is implemented with both axes of a front shaft and a rear shaft protruding forward and rearward, a sensing slit is provided on a rear shaft, and a rotation of the sensing slit is sensed. By performing the reference position positioning by the photointerrupter based on the rotation of the sling, it is possible to prevent the failure of the reference position positioning and to realize the stabilization, thereby improving the product reliability.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a multi-core fiber optical switch module according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a front perspective view of a multi-core fiber optical switch module for pulling out an optical cable in the front and rear according to an embodiment of the present invention. FIG. 2 is a rear perspective view of FIG. 1, Fig. 4 is a perspective view of the main part of Fig. 2, Fig. 5 is an exploded perspective view of Fig. 1, and Fig. 6 is a sectional view of the main part of Fig.

As shown in FIGS. 1 to 6, a multi-core fiber optical switch module for pulling out an optical cable in front and rear according to an embodiment of the present invention includes a base 10, a motor housing A front shaft 22 and a rear shaft 23 protruding in both forward and backward directions from the motor housing 21 and being rotated at a predetermined angle under the control of a controller Shaped sensing slit 31 formed in the rear shaft 23 of the motor and rotated according to the rotation of the motor to form a positioning hole 31a, A positioning hole 31a of the sensing slit 31 fixed to the photo interrupting mount 32 and integrally rotating with the rear shaft 23 is mounted on the rear side of the motor housing 20, ) And detects the reference position detection signal And a central through hole 40a through which the front shaft 22 of the motor passes is formed at a central portion and is provided at a front end of the motor housing 21 so as to extend along a circumference A lens array plate 40 having a plurality of lens insertion holes 41 and provided with lenses 42 in the lens insertion holes 41 and a plurality of lenses A plurality of general-purpose optical fiber cables 45 which are respectively connected to the front shaft 22 and the front shaft 22 of the motor through the central through hole 40a of the lens array plate 40, And a lens 52 which is aligned with the lens 42 provided on the lens array plate 40 is provided on the other side of the lens insertion hole 51 through which the end of the lens is inserted A rotary arm 50 inserted into the rotary arm 50 and a lens 52 inserted in the rotary arm 50, (10) mounted on the base (10) in front of the lens array plate (40) and spaced upwardly from the base (10) cabled forward, the common port optical cable A cable supporting block 60 formed with a bearing mounting hole 61a formed in a substantially center portion thereof (preferably formed to coincide with the front shaft 22 of the motor) A bearing 70 for interpolating a common port optical cable 55 to rotate the inner ring in accordance with rotation of the common port optical cable 55 by rotation of the rotary arm 50 to rotate and support the common port optical cable 55 And the like.

In the multi-core fiber optical switch module according to the embodiment of the present invention, the cable support block (60) is mounted on the base (10) in front of the lens array plate (40) A lower cable support block 61 in which a bearing mounting hole 61a is formed and a plurality of fastening holes 61b are formed on an upper surface thereof and a through hole 62b communicating with the fastening hole 61b are formed in a vertical A supporting piece 62a 'is formed to prevent the bearing 70 from being detached when the lower cable supporting block 61 is fastened to the lower cable supporting block 61 and the bearing mounting hole 61a is formed in the supporting piece 62a' An upper cable support block 62 communicating with the common port optical cable 55 and having a cable passage hole 62a through which the common port optical cable 55 passes and an upper cable supporting block 62 passing through the through hole 62b, So that the upper cable support block 62 and the lower cable support Characterized by consisting of the fastening rod 63 is fastened to the block 61.

According to the above configuration, even if the common port optical cable 55 rotates, there is an advantage that the bearing 70 can be smoothly rotated without being detached.

The lens 52 of the rotary arm 50 and the lens 42 of the lens array plate 40 are aligned so as to minimize the insertion loss and the common port optical cable 55, The light transmitted through the switch 50 switches the light to a specific general-purpose optical fiber cable 45 selected according to the rotation of the rotary arm 50.

In the multi-core fiber optical switch module according to the embodiment of the present invention, one side is fixed to the rotary arm (50) and the other side is provided with a common port optical cable (55) The common port optical cable 55 that is attached to the lens 52 of the rotary arm 50 and rotates together with the rotary arm 50 so that the common port optical cable 55 can rotate smoothly, And a support guide (80).

By forming the common port optical fiber support guide 80 as described above, it is possible to smoothly rotate the common port optical cable along the rotating rotary arm 50, thereby smoothly performing the rotation operation of the rotary arm 50 There is an advantage that the reliability of the product can be improved.

Further, the common port optical cable supporting guide 80 and the bearing 70 are aligned so that the common port optical cable 55 is pulled out substantially to the front shaft of the motor rather than the bottom of the base to stably process the common port optical cable There is an advantage that the wear of the common port optical cable can be prevented and the reliability of the product can be improved.

In the multi-core fiber optical switch module according to the embodiment of the present invention, a lower support groove 61c is formed in the base 10 apart from the lower cable support block 61, An upper support groove 62c is formed on the upper cable support block 62 and a central passage hole 90a through which the common port optical cable 55 inserted into the bearing 70 passes is formed at a central portion The lower end is supported by the lower support groove 61c and the upper end is supported by the upper support groove 62c. The reflected light emitted from the end of the general port optical cable 45 is emitted to the general port optical cable 45 A reflection mirror 90 for dispersing the reflected light that is reflected from the end of the general port optical cable 45 in order to minimize the influence of reflection loss caused by re- And further comprising:

According to the configuration of the reflection mirror 90, the reflection light reflected from the terminal end of the general-purpose optical fiber cable 45 can be efficiently dispersed to minimize the influence of reflection loss. As a result, the signal distorsion phenomenon can be prevented.

In other words, the reflected light reflected from the end of the general-purpose optical fiber cable and emitted to the input port of the general-purpose optical fiber cable acts as noise to the signal when re-entering into the general-purpose optical fiber cable. The reflection mirror 90 according to the present invention is capable of reducing the reflection loss which causes such signal distortion.

In the multi-core fiber optical switch module according to the embodiment of the present invention, a plurality of alignment holes 100a are formed so as to pass through the inside and the outside, And a general port optical cable sorting base 100 for guiding the port optical fibers 45 into a plurality of bundles so as to be aligned and rearwardly drawn out.

According to the above configuration, there is an advantage that the general port optical cable can be stably cabled without the flow.

The operation of the multi-core fiber optical switch module for pulling out the optical cable in the front and rear direction according to the present invention having the above-described configuration will be described below.

First, in the process of assembling the cable supporting block 60, when the bearing 70 is inserted into the bearing mounting hole 61a, the cable passing hole 62a and the bearing mounting hole 61a are aligned with each other, The upper cable support block 62 is mounted on the lower cable support block 61 and then the mounting rod 63 passes through the through hole 62b and is fastened to the fastening hole 61b, And is fastened to the block 61.

The reflection mirror 90 is provided by supporting the lower end of the reflection mirror 90 on the lower support groove 61c and supporting the upper end of the reflection mirror 90 on the upper support groove 62c.

The common port optical cable 55 fixed to the lens 52 is fitted into the fitting opening 80a while the cable supporting block 60 is assembled and the reflecting mirror 90 is installed, The crossover of the common port optical cable 55 is completed by passing through the central through hole 90a of the bearing 70 and the inner ring of the bearing 70. [

Then, the general port optical cable 35 connected to the lens 42 is pulled backward through the alignment hole 100a, thereby cabling the general port optical cable 35.

When the motor (not shown) rotates at a predetermined angle under the control of a controller (not shown) and the rotary arm 50 rotates at a predetermined angle by the rotation of the motor, the common port optical cable 55 is also rotated in conjunction with it Since the common port optical cable 55 is rotatably supported by the bearing 70, the rotation is stable and smooth, and therefore, the rotating operation of the rotating arm 50 is performed smoothly without any hindrance, thereby improving the operational reliability of the rotating arm 50 .

Meanwhile, since the light transmitted from the common port optical cable 55 is transmitted to the general port optical cable 45 and the reflected light emitted from the end of the general port optical cable 45 is emitted by the reflection mirror 90, . As a result, signal distortion can be eliminated.

It will be appreciated that those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

FIG. 1 is a front perspective view of a multi-core fiber optical switch module for pulling an optical cable forward and backward according to an embodiment of the present invention.

Fig. 2 is a rear perspective view of Fig. 1. Fig.

3 is a side view of Fig.

Fig. 4 is a perspective view of the main part of Fig. 2. Fig.

Fig. 5 is an exploded perspective view of the essential part of Fig. 1;

6 is a sectional view of the main part of Fig.

          Description of the Related Art [0002]

10: Base 21: Motor housing

22: front shaft 23: rear shaft

31: sensing slit 31a: positioning hole

32: Photointerrupt mount 33: Photointerrupt

40: lens array plate 40a: central aperture

41, 51: lens insertion hole 42, 52: lens

45: general-purpose optical fiber cable 50: rotary arm

55: Common port optical cable 60: Cable supporting block

61: lower cable supporting block 61a: bearing mounting hole

61b: fastening hole 61c:

62: upper cable support block 62a: cable passage hole

62a ': Support piece 62b: Through hole

62c: upper support groove 63: fastening rod

70: Bearing 80: Common port optical cable supporting guide

80a: Insertion opening 90a: Center through hole

90: Reflective mirror 100: Plain port Optical cable alignment stand

100a: Alignment hole

Claims (5)

A base 10; A motor housing (21) mounted on the base (10); A motor that is installed in the motor housing 21 and has a front shaft 22 and a rear shaft 23 protruded in both forward and backward directions and rotates at an angle set by the controller; A sensing slit 31 formed in the rear shaft 23 of the motor and having a positioning hole 31a; A photointerrupt mount (32) mounted at a rear end of the motor housing (20); A photointerrupter 33 fixed to the photointerrupt mount 32 and sensing a positioning hole 31a of the sensing slit 31 to output a reference position sensing signal to the controller; A central through hole 40a through which the front shaft 22 of the motor passes is formed at the center and a plurality of lens insertion holes 41 are formed along the circumference of the motor housing 21 at the front end thereof, A lens array plate (40) having a lens (42) in a hole (41); A plurality of common port optical cables 45 which are respectively attached to the plurality of lenses 42 provided on the lens array plate 40 and are cabled rearward; The lens 42 is provided on the other side of the lens array plate 40 and the other side of the lens array 42 is connected to the lens array plate 40 through the central through hole 40a of the lens array plate 40, A rotary arm (50) inserted in a lens insertion hole (51) formed through an end of the lens (52) to be aligned with the rotary arm (50); A common port optical cable 55 attached to the lens 52 inserted in the rotary arm 50 and cabled forward; A cable supporting block 60 mounted on the base 10 in front of the lens array plate 40 and having a bearing mounting hole 61a formed upwardly spaced from the base 10; A bearing 70 mounted on the bearing mounting hole 61a and interposed between the common port optical cable 55 to rotate the inner ring in accordance with rotation of the common port optical cable 55 to rotate and support the common port optical cable 55, The optical fiber module according to claim 1, The method according to claim 1, The cable support block (60) A lower cable support block 61 mounted on the base 10 in front of the lens array plate 40 and formed with the bearing mounting hole 61a and having a plurality of fastening holes 61b formed on the upper surface thereof, A through hole 62b communicating with the fastening hole 61b is formed so as to pass through the upper cable supporting block 61. The supporting piece 62a is provided to prevent the bearing 70 from being detached when the lower cable supporting block 61 is fastened to the lower cable supporting block 61. [ And an upper cable supporting block 62a having a cable passing hole 62a communicated with the bearing mounting hole 61a and passing through the common port optical cable 55 is formed in the supporting piece 62a ' )and, And a fastening rod 63 which passes through the through hole 62b and is screwed to the fastening hole 61b to fasten the upper cable support block 62 and the lower cable support block 61 A multi-core fiber optic switch module for pulling out optical cables in front and back. The method of claim 2, A fitting opening 80a is formed on one side of the rotary arm 50 and a common port optical cable 55 is fitted on the other side of the rotary arm 50 so as to support the rotary arm 50. The fitting opening 80a is engaged with the lens 52 of the rotary arm 50, And a common port optical cable supporting guide (80) for supporting the common port optical cable (55) rotating together with the arm (50) so that the common port optical cable (55) rotates smoothly. Fiber optic switch module. The method of claim 3, A lower support groove 61c is formed in the base 10 apart from the lower cable support block 61, An upper support groove 62c is formed on the upper cable support block 62, A central passage hole 90a through which the common port optical cable 55 to be inserted into the bearing 70 passes is formed at the central portion and the lower end is supported by the lower support groove 61c and the upper end is supported by the upper support groove 62c The optical fiber cable 45 is supported by the general port optical cable 45 and is connected to the general port optical cable 45 in order to minimize the influence of reflection loss caused by the reflection light reflected and emitted from the terminating end of the general port optical cable 45, And a reflection mirror (90) for dispersing the reflected light reflected from the end of the optical fiber module (90). The method of claim 4, A plurality of alignment holes 100a are formed so as to penetrate inside and outside, and the plurality of general-purpose optical fiber cables 45 are divided into a plurality of bundles through the alignment holes 100a, Wherein the optical fiber module further comprises a plurality of optical fibers.

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