CN210670421U

CN210670421U - All-optical switching device

Info

Publication number: CN210670421U
Application number: CN201922334080.5U
Authority: CN
Inventors: 刘斌; 钟昌锦; 付益; 汤科; 覃良标; 童章伟; 鲁正; 曾笑波
Original assignee: CETC 34 Research Institute
Current assignee: CETC 34 Research Institute
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-06-02
Anticipated expiration: 2029-12-23

Abstract

The utility model discloses an all-optical switching device, which comprises a casing, an optical switching unit, and more than two groups of input collimators and output collimators. The light switching unit is composed of a micro motor, a screw rod, a guide rail, a slider, a shading plate and a control circuit board. The utility model can realize the switching of the optical path of the all-optical switching device by means of mechanical control, which not only has the characteristics of low insertion loss, high isolation, no light in wavelength and polarization, etc., but also can reduce the volume and size of the all-optical switching device. complexity, reduce production costs, and make troubleshooting easier.

Description

All-optical switching device

Technical Field

The utility model relates to an optical signal switching technology field, concretely relates to all-optical switching device.

Background

The all-optical switching device is used as a key component of an all-optical network, is widely applied to the fields of routing selection, multi-path monitoring, device testing, optical network cross linking, self-healing protection and the like, and is used for controlling on and off of a plurality of optical paths of the all-optical network. The existing all-optical switching device mainly comprises a singlechip control circuit, a plurality of input single-core collimators, a plurality of output single-core collimators and a plurality of 1 multiplied by 1 optical switches. The number of the single-core collimators, the single-core collimators and the 1 multiplied by 1 optical switches is the same as that of the optical paths required to be switched. The 1X 1 optical switch is arranged between the input single-core collimator and the plurality of output single-core collimators, and the control end of the 1X 1 optical switch is connected with the singlechip control circuit. When each optical path is switched, the 1 × 1 optical switches are controlled by the single-chip microcomputer control circuit, so that the purpose of controlling the on-off of the optical path is achieved.

However, with the development of optical communication transmission network technology, the scale of an all-optical network is getting larger, the number of optical paths which need to be controlled to be on and off is increased, and the number of the optical paths can reach hundreds, at this time, if the on and off control of a plurality of optical paths is realized by adopting a mode of matching more than 1 × 1 optical switches with an external single chip circuit, the external single chip circuit needs to have a large number of IO ports, so that the external single chip circuit becomes very large and the cost is very high; in addition, once the all-optical network fails, the use of a large number of 1 × 1 optical switches also makes troubleshooting of the failure extremely difficult and inconvenient to maintain.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that current full gloss switching device has that the structure is complicated, with high costs and maintains inconvenience, provides a full gloss switching device.

In order to solve the above problems, the utility model discloses a realize through following technical scheme:

an all-optical switching device comprises a shell, an optical switching unit, more than 2 groups of input collimators and output collimators; all input collimators are horizontally arranged at the same horizontal height of the front side of the shell from left to right; the light output end of the input collimator faces the inner side of the shell, and an input optical fiber of the input collimator is led out of the shell; all output collimators are horizontally arranged at the same horizontal height of the rear side of the shell from left to right; the light input end of the output collimator faces the inner side of the shell, and the output optical fiber of the output collimator is led out of the shell; the light output end of each group of input collimators is opposite to the light input end of the group of output collimators; the light switching unit is arranged in the middle of the shell and transversely extends in the left-right direction between all the input collimators and all the output collimators; the light switching unit consists of a micro motor, a screw rod, a guide rail, a slide block, a light screen and a control circuit board; the control end of the control circuit board is led out of the shell, and the output end of the control circuit board is connected with the control end of the micro motor; the screw rod and the guide rail extend in the left-right direction and are arranged in parallel; the slide block is simultaneously arranged on the screw rod and the guide rail in a penetrating way; the strip plate-shaped shading plate is vertically arranged above the sliding block, and the horizontal height of the shading plate is the same as the horizontal height of the input collimator and the horizontal height of the output collimator; the micro motor is positioned on the left side or the right side of the shell, and an output shaft of the micro motor is connected with the screw rod; when the micro motor is started under the control of the control circuit board, the micro motor drives the slide block to drive the shading plate on the micro motor to move leftwards or rightwards along the guide rail through the screw rod; when the light shielding plate is positioned between a certain group of input collimators and output collimators, the light paths corresponding to the group of input collimators and the output collimators are in a closed state; when the light shielding plate leaves between a certain group of input collimators and output collimators, the light paths corresponding to the input collimators and the output collimators are in a conducting state.

In the above scheme, the optical switching unit further includes a position sensor; the position sensor consists of a position blocking piece and at least one photoelectric switch; the position blocking piece is fixed on the side wall of the sliding block, the photoelectric switch is fixed in the shell, and the photoelectric switch and the position blocking piece are positioned on the same side of the sliding block; the output end of the photoelectric switch is connected with the position signal input end of the control circuit board; the position separation blade moves leftwards or rightwards along with the sliding block, when the position separation blade is opposite to a certain photoelectric switch, the photoelectric switch generates a signal and sends the signal to the control circuit board, and the control circuit board can know the position of the sliding block, namely the light screen, according to the position of the photoelectric switch.

In the above scheme, the position blocking piece and the photoelectric switch are simultaneously positioned on the front side, the rear side or the lower side of the sliding block.

In the above scheme, when the number of the photoelectric switches is more than 2, the photoelectric switches are distributed along the extending direction of the screw rod.

In the scheme, the upper end of the shading plate is in a sawtooth shape.

In the above scheme, the guide rail is positioned right below the screw rod.

In the above scheme, the number of cores of each set of input collimator is the same as that of cores of each set of output collimator.

In the above scheme, the input collimator and the output collimator are single-core collimators or multi-core collimators.

Compared with the prior art, the utility model discloses can adopt the mechanical control mode to realize the switching of full gloss switching device's light path, it not only can have characteristics such as insertion loss is low on the low side, the isolation is high, wavelength and polarization are dull, can reduce full gloss switching device's volume and complexity moreover, reduction in production cost to make troubleshooting easier.

Drawings

Fig. 1 is a schematic perspective view of an all-optical switching device.

Fig. 2 is a top view of an all-optical switching device.

Reference numbers in the figures: 1. a housing; 2-1, a micro motor; 2-2, a screw rod; 2-3, a guide rail; 2-4, a sliding block; 2-5, a light screen; 2-6-1, a photoelectric switch; 2-6-2, a position blocking piece; 3. an input collimator; 4. and outputting the collimator.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the following specific examples. It should be noted that directional terms such as "upper", "lower", "middle", "left", "right", "front", "rear", and the like, referred to in the examples, refer only to the direction of the drawings. Accordingly, the directions used are for illustration only and are not intended to limit the scope of the present invention.

Referring to fig. 1 and 2, an all-optical switching device is characterized by comprising a housing 1, an optical switching unit, and more than 2 groups of input collimators 3 and output collimators 4.

All input collimators 3 are arranged horizontally at the same level at the front side of the housing 1. The light output end of the input collimator 3 faces the inner side of the housing 1, and the input optical fiber of the input collimator 3 is led out of the housing 1. All output collimators 4 are arranged horizontally at the same level at the rear side of the housing 1. The light input end of the output collimator 4 faces the inner side of the shell 1, and the output optical fiber of the output collimator 4 is led out of the shell 1. The light output end of each set of input collimators 3 is directly opposite to the light input end of the set of output collimators 4. The input collimator 3 and the output collimator 4 may be single-core collimators or multi-core collimators, but the number of cores of the input collimator 3 and the output collimator 4 in the same group is the same. In the preferred embodiment of the present invention, in order to reduce the size of the device, the input collimator 3 and the output collimator 4 are multi-core collimators.

The light switching unit is arranged in the middle of the housing 1 and extends in the left-right direction across all the input collimators 3 and all the output collimators 4. The light switching unit consists of a micro motor 2-1, a screw rod 2-2, a guide rail 2-3, a sliding block 2-4, a light screen 2-5 and a control circuit board. The control end of the control circuit board is led out of the shell 1, and the output end of the control circuit board is connected with the control end of the micro motor 2-1. The screw rod 2-2 and the guide rail 2-3 extend in the left-right direction and are arranged in parallel. The main function of the guide rail 2-3 is to ensure the stability of the slider 2-4 during the movement process, which can be located on the left side or the right side of the screw rod 2-2, but in the preferred embodiment of the present invention, the guide rail 2-3 is located under the screw rod 2-2, so that the guide rail 2-3 can support the slider 2-4 to a certain extent, which not only can ensure the stability of the slider 2-4 during the movement process, but also can ensure the height of the light screen 2-5 on the slider 2-4 to be unchanged, so as to achieve the best light shielding effect. The slide block 2-4 is simultaneously arranged on the screw rod 2-2 and the guide rail 2-3 in a penetrating way. The strip-shaped light shielding plate 2-5 is vertically arranged above the slide block 2-4, and the horizontal height of the light shielding plate 2-5 is the same as that of the input collimator 3 and the output collimator 4. The light shielding plates 2-5 are used for shielding the light path between the input collimator 3 and the output collimator 4, and the shape of the light shielding plates can be flexibly designed according to design requirements: if a group of input collimators 3 and output collimators 4 needs to be shielded each time, the design width of the light-shielding plates 2-5 should be equal to or slightly larger than the optical path width of the group of input collimators 3 and output collimators 4; when N groups of input collimators 3 and output collimators 4 which are arranged together need to be shielded at the same time each time, the design width of the light shielding plates 2-5 is equal to or slightly larger than the light path width of the N groups of input collimators 3 and output collimators 4; when M groups of input collimators 3 and output collimators 4 arranged at intervals need to be shielded at the same time, the upper ends of the light shielding plates 2-5 are zigzag; and so on. The micro motor 2-1 is positioned at the left side or the right side of the shell 1, and the output shaft of the micro motor 2-1 is connected with the screw rod 2-2.

When the micro motor 2-1 is started under the control of the control circuit board, the micro motor 2-1 drives the slide block 2-4 through the screw rod 2-2 to drive the light screen 2-5 thereon to move leftwards or rightwards along the guide rail 2-3. When the light shielding plates 2-5 are located between a certain group of input collimators 3 and output collimators 4, the light paths corresponding to the group of input collimators 3 and output collimators 4 are in an off state. When the light shielding plate 2-5 leaves between a certain group of input collimators 3 and output collimators 4, the light paths corresponding to the group of input collimators 3 and output collimators 4 are in a conducting state.

In order to enable the control circuit board to accurately know the positions of the sliding blocks 2-4 and the light shielding plates 2-5 so as to ensure the accuracy of on-off control, the optical switching unit further comprises a position sensor. The position sensor consists of a position blocking sheet 2-6-2 and at least one photoelectric switch 2-6-1. When the number of the photoelectric switches 2-6-1 is 1, it may be located at the start position or the position finally reached by the slider 2-4. When the number of the photoelectric switches 2-6-1 is more than 2, the photoelectric switches 2-6-1 are distributed along the extending direction of the screw rod 2-2, and are preferably distributed at intervals. The position blocking piece 2-6-2 is fixed on the side wall of the sliding block 2-4, the photoelectric switch 2-6-1 is fixed in the shell, and the position blocking piece 2-6-2 and the photoelectric switch 2-6-1 are positioned on the same side of the sliding block 2-4, such as the front side, the rear side or the lower side of the sliding block 2-4. In the preferred embodiment of the present invention, the position stop 2-6-2 and the photoelectric switch 2-6-1 are located on the front side of the slider 2-4 at the same time. The output end of the photoelectric switch 2-6-1 is connected with the position signal input end of the control circuit board. The position separation blade 2-6-2 moves leftwards or rightwards along with the sliding block 2-4, when the position separation blade 2-6-2 is opposite to a certain photoelectric switch 2-6-1, the photoelectric switch 2-6-1 generates a signal and sends the signal to the control circuit board, and the control circuit board can know the position of the sliding block 2-4 according to the position of the photoelectric switch 2-6-1.

It should be noted that, although the above-mentioned embodiments of the present invention are illustrative, the present invention is not limited thereto, and therefore, the present invention is not limited to the above-mentioned embodiments. Other embodiments, which can be made by those skilled in the art in light of the teachings of the present invention, are considered to be within the scope of the present invention without departing from the principles thereof.

Claims

1. An all-optical switching device, characterized in that it comprises a housing (1), an optical switching unit, and more than 2 groups of input collimators (3) and output collimators (4);

All input collimators (3) are arranged horizontally from left to right at the same level on the front side of the housing (1); the light output end of the input collimator (3) faces the inside of the housing (1), and the input The input optical fibers of the collimator (3) are led out of the casing (1); all output collimators (4) are arranged horizontally from left to right at the same level on the rear side of the casing (1); The optical input end of the collimator (4) faces the inner side of the casing (1), and the output optical fiber of the output collimator (4) is led out of the casing (1); the optical output end of each group of input collimators (3) is connected to the The optical input ends of the group of output collimators (4) are facing directly;

The light switching unit is arranged in the middle of the housing (1), and extends in the left-right direction between all the input collimators (3) and all the output collimators (4); the light switching unit is driven by a micro motor (2-1) , screw (2-2), guide rail (2-3), slider (2-4), shading plate (2-5) and control circuit board; the control end of the control circuit board is led out to the shell (1) In addition, the output end of the control circuit board is connected to the control end of the micro motor (2-1); the lead screw (2-2) and the guide rail (2-3) both extend in the left-right direction and are arranged parallel to each other; the slider (2-2) 2-4) are threaded on the screw rod (2-2) and the guide rail (2-3) at the same time; the long plate-shaped shading plate (2-5) is erected above the slider (2-4), and The level height of the shading plate (2-5) is the same as that of the input collimator (3) and the output collimator (4); the micro motor (2-1) is located on the left side of the housing (1) or On the right side, and the output shaft of the micro motor (2-1) is connected with the lead screw (2-2);

When the micro motor (2-1) is started under the control of the control circuit board, the micro motor (2-1) drives the slider (2-4) through the screw rod (2-2) to drive the shading plate (2- 5) Move to the left or right along the guide rail (2-3); when the shading plate (2-5) is between a certain group of input collimators (3) and output collimators (4), the group of input The optical paths corresponding to the collimator (3) and the output collimator (4) are in an off state; when the shading plate (2-5) leaves a certain group of input collimators (3) and output collimators (4), the At time, the optical paths corresponding to the input collimator (3) and the output collimator (4) of the group are in a conducting state.

2. The all-optical switching device according to claim 1, wherein the optical switching unit further comprises a position sensor;

The position sensor consists of a position block (2-6-2) and at least one photoelectric switch (2-6-1); the position block (2-6-2) is fixed on the side wall of the slider (2-4) , the photoelectric switch (2-6-1) is fixed in the housing, and the photoelectric switch (2-6-1) and the position block (2-6-2) are located on the same side of the slider (2-4); the photoelectric switch The output end of (2-6-1) is connected to the position signal input end of the control circuit board; the position block (2-6-2) moves to the left or right with the slider (2-4), When the sheet (2-6-2) is opposite to a certain photoelectric switch (2-6-1), the photoelectric switch (2-6-1) generates a signal and sends it to the control circuit board, and the control circuit board uses the photoelectric switch (2-6-1) accordingly. -6-1) The position of the slider (2-4), that is, the position of the shading plate (2-5), can be known.

3. An all-optical switching device according to claim 2, characterized in that the position block (2-6-2) and the photoelectric switch (2-6-1) are simultaneously located on the side of the slider (2-4) Front, rear or below.

4. An all-optical switching device according to claim 2, characterized in that, when the number of photoelectric switches (2-6-1) is more than 2, these photoelectric switches (2-6-1) move along the screw (2-2) The extension direction distribution.

5 . The all-optical switching device according to claim 1 , wherein the upper end of the light shielding plate ( 2 - 5 ) is serrated. 6 .

6 . The all-optical switching device according to claim 1 , wherein the guide rail ( 2 - 3 ) is located directly below the screw rod ( 2 - 2 ). 7 .

7 . The all-optical switching device according to claim 1 , wherein the number of cores of each group of input collimators ( 3 ) and output collimators ( 4 ) is the same. 8 .

8 . The all-optical switching device according to claim 7 , wherein the input collimator ( 3 ) and the output collimator ( 4 ) are single-core collimators or multi-core collimators. 9 .