CN221261314U

CN221261314U - Stacked multi-channel LC fiber module

Info

Publication number: CN221261314U
Application number: CN202323230977.6U
Authority: CN
Inventors: 张晓�
Original assignee: Shenzhen Zhongwei Communication Technology Co ltd
Current assignee: Shenzhen Zhongwei Communication Technology Co ltd
Priority date: 2023-11-27
Filing date: 2023-11-27
Publication date: 2024-07-02
Anticipated expiration: 2033-11-27

Abstract

The utility model relates to a stacked multi-channel LC optical fiber module, which comprises a plurality of adapter units and fixing pieces, wherein the lower surfaces of the adapter units are convexly provided with a first connecting part and a second connecting part, and the upper surfaces of the adapter units are convexly provided with a third connecting part and a fourth connecting part; when two adapter units are stacked up and down, the first connecting part above and the third connecting part below are spliced and connected to form a first fixed position, the second connecting part above and the fourth connecting part below are spliced and connected to form a second fixed position so as to limit the two adapter units in the vertical direction, and the first fixed position and the second fixed position are matched to enable the two stacked adapter units to be parallel and leave a gap, so that the distance between the upper connector and the lower connector is pulled apart, the top of the pressing part of the lower connector is not interfered by the upper connector, the pressing part of the lower connector is not extruded, and the lower connector can be stably connected with the lower adapter unit.

Description

Stacked multi-channel LC fiber module

Technical Field

The utility model relates to the field of optical fiber adapters, in particular to a stacked multi-channel LC optical fiber module.

Background

The LC optical fiber adapter is a common adapter device in the optical fiber transmission process, is provided with a slot for inserting a connector, and realizes the optical fiber line connection of the LC optical fiber adapter and the connector when the connector is inserted into the optical fiber adapter. Common LC fiber optic adapters are of the single-link and double-link types, the single-link adapter has one channel, the double-link adapter has two channels, and the more the channels, the higher the fiber transmission efficiency. In order to further increase the optical fiber transmission efficiency, a plurality of LC fiber optic adapter units are often integrated into one device, such as a four-core LC fiber optic adapter, and four channels are disposed in one housing, see patent application No. CN201420195036.5; for another example, an eight-core LC fiber optic adapter, see patent application number CN201420099687.4.

It can be seen that the existing multi-channel LC fiber optic adapter devices all laterally place multiple adapter units side by side, resulting in a large footprint for the multi-channel LC fiber optic adapter device. It has then been proposed to arrange the adapter units longitudinally, i.e. to stack a plurality of adapter units together, and finally to fix the stacked adapter units with a fixing member.

However, when the adaptor units with the existing structure are stacked, the upper adaptor unit and the lower adaptor unit slide easily, so that the optical fiber adaptors in the row are easy to loose and fall off. And after a plurality of connectors correspond to and insert the adapter unit, in two upper and lower adjacent connectors, the pressing part of below connector can receive the interference of top connector, leads to the below connector to insert the optic fibre adapter after, and its pressing part is in the extrusion state, can't connect steadily.

Disclosure of utility model

In order to solve the problems that the existing LC optical fiber adapter units are loose after being stacked and combined, and connectors on two adjacent adapter units are interfered to cause the connection between the connectors and the adapters to be unstable, the utility model provides a stacked multi-channel LC optical fiber module.

The technical scheme of the utility model is as follows:

A stacked multi-channel LC fiber optic module comprising a plurality of adapter units, and further comprising a fixture for securing the plurality of adapter units stacked together; the lower surface of the adapter unit is convexly provided with a first connecting part and a second connecting part, and the upper surface of the adapter unit is convexly provided with a third connecting part and a fourth connecting part; when two adapter units are stacked up and down, the first connecting part of the upper adapter unit and the third connecting part of the lower adapter unit are spliced and connected into a first fixed position so as to limit the two adapter units in a first direction and a second direction; the second connecting part of the upper adapter unit and the fourth connecting part of the lower adapter unit are spliced and connected to form a second fixing position, and the second fixing position is matched with the first fixing position, so that the two stacked adapter units are parallel and leave a gap.

According to the utility model of the above aspect, the first connecting portion and the third connecting portion are provided in the middle of the adapter unit, and the second connecting portion and the fourth connecting portion are provided at one end of the adapter unit adjacent to the slot.

According to the utility model of the scheme, the first connecting part is a dumbbell-shaped protruding block, the third connecting part is a group of parallel first protruding strips, and the group of first protruding strips are spliced with the dumbbell-shaped protruding block in an adaptive mode.

Further, the dumbbell-shaped protruding block comprises a first limiting part in the middle and second limiting parts at two ends, and after the dumbbell-shaped protruding block is spliced with the first protruding strips, the first limiting parts are inserted between the two first protruding strips so as to limit the displacement of the two adapter units in the first direction; and the outer side surfaces of the two first raised strips are abutted against the inner side surface of the second limiting part so as to limit the displacement of the two adapter units in the second direction.

Further, the first limiting portion and the first protruding strip are parallel to the short side of the adapter unit, the first direction is perpendicular to the direction of the short side, and the second direction is parallel to the direction of the short side.

According to the utility model of the above scheme, the second connecting portion is a set of rectangular protruding blocks, the fourth connecting portion is a second protruding strip, and the second protruding strip is inserted between two rectangular protruding blocks.

According to the utility model of the scheme, the inner dustproof cover is arranged in the slot of the adapter unit, the end part of the inner dustproof cover is provided with the protruding rotating shaft, and the inner dustproof cover is rotatably connected in the shell of the adapter unit through the rotating shaft.

Further, a stop surface is arranged on one side of the rotating shaft of the inner dust cover and used for abutting against a convex clamping block on the side face of the pressed part of the joint.

According to the utility model of the scheme, the front side of the adapter unit is provided with the slot for plugging the connector, and the left side and the right side of the adapter are provided with the side lug connection parts protruding out of the side face of the adapter unit.

According to the utility model of the scheme, the fixing piece is a module plate with a mounting hole, and the side edge of the mounting hole is clamped at the gap between the side lug connecting part of the adapter unit and the second elastic piece.

The utility model according to the scheme has the beneficial effects that:

The utility model sets the first connecting part and the second connecting part on the lower surface of the adapter unit, sets the third connecting part and the fourth connecting part on the upper surface, when the two adapter units are stacked up and down, the first connecting part of the upper adapter unit and the third connecting part of the lower adapter unit are spliced and connected into the first fixed position so as to limit the two adapter units in the first direction and the second direction; the second connecting part of the upper adapter unit and the fourth connecting part of the lower adapter unit are spliced and connected to form a second fixed position, and the second fixed position is matched with the first fixed position, so that a stable connecting surface can be formed;

And because of the existence of the first fixed position and the second fixed position between the upper adapter unit and the lower adapter unit, a gap is reserved between the lower surface of the upper adapter unit and the upper surface of the lower adapter unit, so that the distance between the upper connector and the lower connector is pulled apart, the top of the pressing part of the lower connector is not interfered by the upper connector, the pressing part of the lower connector is not extruded, and the lower connector can be stably connected with the lower adapter unit.

Drawings

FIG. 1 is a schematic diagram of a fiber optic module according to the present utility model;

FIG. 2 is a schematic view of another view of a fiber optic module;

FIG. 3 is a schematic view of a modular plate according to the present utility model;

FIG. 4 is a schematic view of the structure of the bottom view of the adapter unit of the present utility model;

FIG. 5 is a schematic view of the structure of the top view of the adapter unit;

FIG. 6 is a schematic view of an adapter unit from another perspective;

FIG. 7 is an exploded view of the adapter unit;

FIG. 8 is a schematic structural view of a connector;

FIG. 9 is a schematic diagram of a connector and adapter unit combination;

FIG. 10 is a cross-sectional view of the connector and adapter unit combination;

FIG. 11 is a schematic diagram of a single channel adapter unit employed in alternative embodiments;

fig. 12 is a schematic diagram of a four-channel adapter unit employed in an alternative embodiment.

In the drawing of the figure,

1. An adapter unit; 11. a first connection portion; 111. a first limit part; 112. a second limit part; 12. a second connecting portion; 13. a third connecting portion; 14. a fourth connecting portion; 15. a side ear connection portion; 16. a first elastic sheet; 17. a second spring plate; 18. a slot;

2. An inner dust cap; 21. a rotating shaft; 22. a stop surface; 23. a torsion spring;

3. A module board; 31. a mounting hole;

4. A connector; 41. a pressing part; 42. a pressure receiving portion; 43. and a clamping block.

Detailed Description

For a better understanding of the objects, technical solutions and technical effects of the present utility model, the present utility model will be further explained below with reference to the drawings and examples. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, it is stated that the embodiments described below are only for explaining the present utility model and are not intended to limit the present utility model.

It should be noted that the terms "first," "second," and "second" are used merely for descriptive purposes and are not to be construed as indicating or implying a relative importance or implying a number of technical features. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.

As shown in fig. 1 to 5, a stacked multi-channel LC fiber optic module includes a plurality of adapter units 1, and further includes a fixing member for fixing the plurality of adapter units 1 stacked together. In an alternative embodiment, the fixing member is a module board 3 provided with mounting holes 31, for example, a module board 3 with 2 mounting holes 31, the mounting holes 31 are long rectangular holes, and each mounting hole 31 can be provided with a plurality of stacked adapter units 1 to form a 2-column multi-channel LC fiber optic module. In other alternative embodiments, the module board 3 has 3 mounting holes 31, and then is combined into a 3-column multi-channel LC fiber optic module.

The adapter unit 1 of the present embodiment adopts duplex adapters, that is, one adapter unit 1 has two channels, and when 6 duplex adapters are mounted to one mounting hole 31, the module board 3 with 2 mounting holes 31 can be assembled into a 24-channel LC fiber module. It can be seen that the height of the mounting holes 31 of the module plate 3 is equal to an integer multiple of the height of the adapter unit 1.

In other alternative embodiments, the adaptor unit may be a single-channel adaptor, please refer to fig. 11, so as to assemble a small LC fiber module; the adapter unit may also be a four-channel adapter, please refer to fig. 12, to assemble LC fiber optic modules with more channel requirements.

The assembly mode of the utility model is as follows: a suitable number of adapter units 1 are selected to be stacked one above the other, and a row of stacked adapter units 1 is inserted together into one of the mounting holes 31 of the module board 3.

As shown in fig. 4 and 5, in the present utility model, the adapter unit 1 is provided with a first connection portion 11 and a second connection portion 12 protruding from the lower surface thereof, and a third connection portion 13 and a fourth connection portion 14 protruding from the upper surface thereof; when the two adapter units 1 are stacked one above the other, the first connection portion 11 of the upper adapter unit 1 and the third connection portion 13 of the lower adapter unit 1 are joined together in a first fixed position to limit the two adapter units 1 in the first direction and the second direction. As shown in fig. 5, the first direction is the X direction in the figure, and the second direction is the Y direction in the figure. The second connecting portion 12 of the upper adapter unit 1 and the fourth connecting portion 14 of the lower adapter unit 1 are connected in a split manner to form a second fixed position, and the second fixed position is matched with the first fixed position, so that a stable connecting surface can be formed, the two adapter units 1 cannot swing in the Z direction, and the upper surfaces and the lower surfaces of the two stacked adapter units 1 are parallel, namely the lower surface of the upper adapter unit 1 is parallel to the upper surface of the lower adapter unit 1 and is stably connected.

In addition, a gap is left between the lower surface of the upper adapter unit 1 and the upper surface of the lower adapter unit 1 due to the presence of the first fixing position and the second fixing position between the upper and lower adapter units. In this way, the distance between the upper connector 4 inserted into the upper adapter unit 1 and the lower connector 4 inserted into the lower adapter unit 1 is pulled, so that the top of the pressing portion 41 of the lower connector 4 is not interfered by the upper connector 4, and the pressing portion 41 of the lower connector 4 is not extruded, thereby ensuring that the lower connector 4 can be stably connected with the lower adapter unit 1.

In summary, in the stacked multi-channel LC fiber optic module according to the present utility model, the first connection portion 11 and the second connection portion 12 are disposed on the upper surface of the housing of the adapter unit 1, the third connection portion 13 and the fourth connection portion 14 are disposed on the lower surface of the housing of the adapter unit 1, and the first connection portion 11 of the upper adapter unit 1 and the third connection portion 13 of the lower adapter unit 1 are adapted to be spliced into a first fixed position, and the second connection portion 12 of the upper adapter unit 1 and the fourth connection portion 14 of the lower adapter unit 1 are adapted to be spliced into a second fixed position, so that the limit connection of the upper and lower adjacent two adapter units 1 is realized, so that the multiple adapter units 1 can be longitudinally stacked and assembled in such a combined structure; meanwhile, the connectors 4 on two adjacent adapter units 1 are further fixed by a first fixing position and a second fixing position, so that the distance is pulled apart, the pressing part 41 of the lower connector 4 is prevented from being interfered by the upper connector 4, and the plugging stability of the lower connector 4 and the adapter units 1 is improved.

In a specific embodiment, the first connection portion 11 and the third connection portion 13 are disposed at the middle of the adapter unit 1, and the second connection portion 12 and the fourth connection portion 14 are disposed at one end of the adapter unit 1 adjacent to the slot 18. The first fixing position is provided in the middle of the adapter unit 1, and the second fixing position is provided at the end of the adapter unit 1 adjacent to the slot 18, so that the stability between the adapter units 1 at the end of the slot 18 can be ensured to be higher. Since the connector 4 will cause a certain disturbance at the slot 18 end, the stability of this end is required to be higher.

The first connecting portion 11 is a dumbbell-shaped bump, the third connecting portion 13 is a set of parallel first protruding strips, and the set of first protruding strips are spliced with the dumbbell-shaped bump in an adaptive manner. Specifically, the dumbbell-shaped protruding block includes a first middle limiting portion 111 and second limiting portions 112 at two ends, and when the dumbbell-shaped protruding block is spliced with the first protruding strips, the first limiting portion 111 is inserted between the two first protruding strips, so that the first limiting portion 111 is limited by the first protruding strips at two sides, thereby limiting displacement of the two adapter units 1 in the first direction. Since the outer side surface of the first protruding strip abuts against the inner side surface of the second limiting portion 112, the first protruding strip is limited by the second limiting portions 112 at both ends, thereby limiting displacement of the two adapter units 1 in the second direction.

In an alternative embodiment, the outer sides of the second limit parts 112 at both ends of the dumbbell-shaped projection are flush with the sides of the adapter unit 1.

In an alternative embodiment, the first limiting portion 111 and the first protruding strip are parallel to the short side of the adapter unit 1, and the first direction is perpendicular to the direction of the short side, i.e. the X direction in the figure, and the second direction is parallel to the direction of the short side, i.e. the Y direction in the figure. The first direction and the second direction are mutually perpendicular, and can limit the upper and lower two adjacent adapter units 1 to the greatest extent, so that the connection stability on the XY plane is improved. Finally, a plurality of adapter units 1 stacked up and down are installed in the installation holes 31 of the module board 3, and the module board 3 is matched with the clamping of the adapter units 1 in the stacking direction (namely, the Z direction) so that the LC fiber optic module structure is firm.

In the present utility model, the second connection portion 12 is a set of rectangular bumps, which are respectively located on the left and right sides of the lower surface of the adapter unit; the fourth connecting portion 14 is a second protruding strip, and the second protruding strip is inserted between the two rectangular protruding blocks, so that the side of the slot 18 of the adapter unit 1 is prevented from being displaced in the second direction, and the stability of the side of the adapter unit 1 is improved. In an alternative embodiment, the rectangular protruding blocks and the second protruding strips have the same width, so that the second connecting portion 12 and the fourth connecting portion 14 are connected in a flat straight line after being spliced.

In the utility model, a slot 18 for plugging the connector 4 is arranged on the front side of the adapter unit 1, side ear connecting parts 15 protruding out of the side face of the adapter unit 1 are arranged on the left side and the right side of the adapter, and one side face of the side ear connecting parts 15 close to the second elastic sheet 17 is abutted against the plate face of the module plate 3. In an alternative embodiment, the width of the side ear connection portion 15 is equal to the width of the second limiting portion 112 of the first connection portion 11, so that the second limiting portion 112 is prevented from interfering with the connection of the side ear connection portion 15 to the module board 3.

After the adapter unit 1 is mounted into the mounting hole 31 of the module board 3, the side edge of the mounting hole 31 is clamped in the gap between the side ear connecting portion 15 of the adapter unit 1 and the second elastic piece 17, the side face of the side ear connecting portion 15 is abutted against the plate face at the side edge of the mounting hole 31, the side face of the second protruding strip on the upper surface of the uppermost adapter unit 1 is abutted against the plate face at the top edge of the mounting hole 31, and the side face of the second limiting portion 112 on the lower surface of the lowermost adapter unit 1 is abutted against the plate face at the bottom edge of the mounting hole 31.

As shown in fig. 7, in the present utility model, the adapter unit 1 includes a first elastic piece 16 and a second elastic piece 17, and the first elastic piece 16 and the second elastic piece 17 are both buckled with a housing of the adapter unit 1. Specifically, the first elastic piece 16 is buckled on one end of the housing adjacent to the slot 18, and the second elastic piece 17 is buckled on the other end of the housing. The side wings of the second elastic sheet 17 arch outwards, in the process that the adapter unit 1 is inserted into the mounting hole 31 of the module board 3, the side wings on two sides of the second elastic sheet 17 are extruded and then retracted inwards, and when the module board 3 is clamped in a gap between the side ear connecting part 15 and the second elastic sheet 17, the second elastic sheet 17 is rebounded and reset, and at the moment, the adapter unit 1 is inserted into place.

As shown in fig. 8, in an alternative embodiment, the connector 4 is of a conventional structure, specifically, provided with an elastic pressing portion 41 and a pressure receiving portion 42, the front end of the pressing portion 41 abutting against the end of the pressure receiving portion 42. When the pressing portion 41 is pressed, the pressing portion 42 is pressed to deform the pressing portion 42, so that the connector 4 and the adapter unit 1 are unlocked, and the connector 4 can be pulled out from the slot 18 of the adapter unit 1.

As shown in fig. 7 and 9, in the present utility model, an inner dust cover 2 is provided in the slot 18 of the adapter unit 1, the end of the inner dust cover 2 is provided with a protruding rotation shaft 21, and the inner dust cover 2 is rotatably connected to the inside of the housing of the adapter unit 1 through the rotation shaft 21. When the connector 4 is inserted, the inner dust cover 2 can be pushed open to rotate, so that the connector 4 can be inserted into the slot 18. A torsion spring 23 or other rotary power springs are arranged at the rotating shaft 21 of the inner dust cover 2, and when the connector 4 is inserted into the slot 18, the torsion spring 23 deforms and generates reset elasticity when the inner dust cover 2 is jacked up; when the connector 4 is pulled out of the slot 18, the inner dust cover 2 automatically resets under the action of elasticity.

As shown in fig. 10, a stop surface 22 is disposed on one side of the rotating shaft 21 of the inner dust cover 2, and a clamping block 43 is disposed on a side of the pressed portion 42 of the connector 4, and when the connector 4 is inserted in place, the stop surface 22 of the inner dust cover 2 after being turned over pushes the clamping block 43 of the connector 4 against, so that the connector 4 is stably connected with the adapter unit 1. When the connector 4 needs to be removed, the pressing portion 41 is pressed down to deform the pressing portion 42 downward, and the clamping block 43 on the pressing portion 42 moves downward and is separated from the stop surface 22, so that the connector 4 is released from the restriction and can be smoothly pulled out from the slot 18.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A stacked multi-channel LC fiber optic module comprising a plurality of adapter units, and further comprising a securing member for securing the plurality of adapter units stacked together;

The lower surface of the adapter unit is convexly provided with a first connecting part and a second connecting part, and the upper surface of the adapter unit is convexly provided with a third connecting part and a fourth connecting part; when two adapter units are stacked up and down, the first connecting part of the upper adapter unit and the third connecting part of the lower adapter unit are spliced and connected into a first fixed position so as to limit the two adapter units in a first direction and a second direction;

the second connecting part of the upper adapter unit and the fourth connecting part of the lower adapter unit are spliced and connected to form a second fixing position, and the second fixing position is matched with the first fixing position, so that the two stacked adapter units are parallel and leave a gap.

2. The stacked multi-channel LC fiber optic module of claim 1, wherein the first and third connection portions are disposed in a middle portion of the adapter unit, and the second and fourth connection portions are disposed at an end of the adapter unit adjacent to the slot.

3. The stacked multi-channel LC fiber optic module of claims 1 or 2, wherein the first connection portion is a dumbbell-shaped bump, the third connection portion is a set of parallel first ribs, and the set of first ribs is adapted to be spliced with the dumbbell-shaped bump.

4. A stacked multi-channel LC fiber module according to claim 3, wherein said dumbbell-shaped protrusion comprises a first middle limit portion and a second limit portion at both ends, said first limit portion being interposed between two of said first ribs to limit displacement of two adapter units in said first direction after said dumbbell-shaped protrusion is spliced with said first ribs; and the outer side surfaces of the two first raised strips are abutted against the inner side surface of the second limiting part so as to limit the displacement of the two adapter units in the second direction.

5. The stacked multi-channel LC fiber optic module of claim 4, wherein the first stop portion and the first rib are each parallel to a short side of the adapter unit, the first direction is perpendicular to the direction of the short side, and the second direction is parallel to the direction of the short side.

6. The stacked multi-channel LC fiber optic module of claims 1 or 2, wherein the second connection portion is a set of rectangular bumps, the fourth connection portion is a second protrusion, and the second protrusion is interposed between two of the rectangular bumps.

7. A stacked multi-channel LC fiber optic module according to claim 1 or 2, wherein an inner dust cap is provided in the slot of the adapter unit, the end of the inner dust cap being provided with a protruding spindle through which the inner dust cap is rotatably connected in the housing of the adapter unit.

8. The stacked multi-channel LC fiber optic module of claim 7, wherein a stop surface is provided on one side of the axis of rotation of the inner dust cap for abutting against a protruding catch block on the side of the connector compression.

9. The stacked multi-channel LC fiber optic module of claim 1, wherein the front side of the adapter unit is provided with a slot for a plug-in connector, and the left and right sides of the adapter are provided with side ear connection portions protruding out of the side of the adapter unit.

10. The stacked multi-channel LC fiber optic module of claim 1, wherein the securing member is a modular plate with a mounting hole, and a side edge of the mounting hole is clamped at a gap between a side ear connection portion of the adapter unit and the second spring plate.