CN217060571U - Small-sized optical module fixed by screw and optical module system - Google Patents

Abstract

The utility model relates to a small-size optical module and optical module system of screw fixation, this optical module system includes optical module and base plate, the optical module includes the casing, is equipped with optical engine and jumper wire jumper on the PCB board of fixing in this casing, wherein the PCB board front end stretches out the casing and is formed with the golden finger, and the casing bottom is equipped with the screw hole; a socket which is used for being matched and plugged with the golden finger of the PCB is fixed on the substrate; the base plate is also provided with a through hole corresponding to the threaded hole at the bottom of the shell, and the threaded part of the screw fastener passes through the through hole from the bottom of the base plate and is locked with the threaded hole at the bottom of the shell. The utility model discloses when the use, insert with the predetermined standard socket on the base plate and close, through screw and printing board fastening, realize its signal of telecommunication and the interconversion between the light signal, possess singly receive, singly send out and receive integrative polytype.

Description

Small-sized optical module fixed by screw and optical module system

Technical Field

The utility model belongs to the technical field of communication equipment, concretely relates to small-size optical module of fix with screw.

Background

With the rapid development of optical communication, many scenes in our work and life have realized "optical copper-in and copper-out". That is, metal medium communication represented by coaxial cables and network cables is gradually replaced by optical fiber media. In optical communication products, optical modules play an important role. With the development of the technology and the change of the system requirements, the optical module is continuously updated and replaced, the size of the optical module is smaller and smaller, and the fact that more ports can be configured on the same printed board space is also meant. Meanwhile, the types of optical modules required in various existing networks are increasing, and the requirements are also increasing. To meet the increasing demands of the system, the optical module is continuously developing to be miniaturized.

At present, optical modules are mainly divided into long strip structures such as GBIC, SFP, XFP, QSFP and square structures such as LCC parallel optical modules according to structural forms. However, the size of the long strip-shaped structure in the length direction is large, and the size of the long strip-shaped structure after being inserted into the optical fiber plug at the movable end can reach 80mm (without optical fibers), so that the long strip-shaped structure is not favorable for high-density PCB distribution in a narrow space, especially under the condition that the long strip-shaped structure in the length direction cannot meet the requirement. The square structure is directly welded with the printed board mostly, and the reworking property of the module can be limited, so that the maintenance and the replacement of the module in the later period are not facilitated.

Disclosure of Invention

In order to solve the above problem, the utility model provides a miniaturized optical module of fix with screw of novel structure makes it insert to close with the socket on the base plate and is connected the back through the golden finger of printing board front end, through the fix with screw for its length can be reduced to this optical module, and strengthens its maintainability.

The purpose of the utility model and the technical problem thereof are realized by adopting the following technical scheme. According to the utility model provides a small-size optical module system of screw fixation, including optical module and base plate, the optical module includes the casing, is equipped with optical engine and jumper wire jumper on the PCB board of fixing in this casing, wherein the PCB board front end stretches out the casing and is formed with the golden finger, and the casing bottom is equipped with the screw hole; a socket which is used for being matched and plugged with the golden finger of the PCB is fixed on the substrate; the base plate is also provided with a through hole corresponding to the threaded hole at the bottom of the shell, and the threaded part of the screw fastener penetrates through the through hole from the bottom of the base plate and is locked with the threaded hole at the bottom of the shell.

The purpose of the utility model and the technical problem to be solved can be further realized by adopting the following technical measures.

In the foregoing screw-fixed small optical module system, the tail fiber of the jumper extends out of the housing and is connected with the movable optical fiber connector, and the optical fiber connector is configured to meet connection requirements of different positions.

In an embodiment of the present invention, the housing includes an upper shell and a lower bottom, and the screw hole is located on the lower bottom.

In the small optical module system fixed by the screw, the PCB is precisely positioned in the upper case by matching the fool-proof hole and the positioning hole on the PCB with the corresponding protrusion in the upper case, and the PCB is fixed to the upper case by the screw for fixing.

In the small-sized optical module system fixed by the screws, the PCB board is further provided with positioning protrusions for matching and positioning with the positioning holes on the optical engine and the jumper.

In the small optical module system fixed by the screw, the optical fiber outlet between the upper shell and the lower bottom is provided with a square groove for clamping the groove at the periphery of the silica gel sheath, and the silica gel sheath is bonded with the sheath of the optical fiber penetrating through the silica gel sheath in a gluing way.

In the small optical module system fixed by the screw, the front end of the housing is further provided with a limiting boss for limiting the insertion length of the printed board golden finger and the socket.

In the foregoing small optical module system fixed by screws, two of the limiting bosses are respectively located above and below the gold finger.

The purpose of the utility model and the technical problem to be solved are realized by adopting the following technical scheme. According to the utility model provides a small-size optical module of fix with screw, it is the above-mentioned arbitrary optical module that includes.

Compared with the prior art, the utility model obvious advantage and beneficial effect have. Borrow by above-mentioned technical scheme, the utility model discloses can reach considerable technical advancement and practicality to have the wide use value in the industry, it has following advantage at least:

the utility model discloses a small-size optical module of fix with screw gets rid of the fibre from the area, and its casing size can be little to 24X 30X 7.5mm, possesses the miniaturization, and the simple installation, simple structure's advantage. The utility model discloses when the use, insert with standard sockets such as the QFSP of predetermineeing on the base plate, FSP and close, through screw and printing board fastening, realize the interconversion between its signal of telecommunication and the light signal, possess singly receive, singly send out and receive integrative polytype.

Drawings

Fig. 1 is a schematic structural view of a small optical module;

FIG. 2 is a schematic diagram of a screw-on miniature optical module system;

fig. 3 is a partially exploded view of a screw-on compact optical module.

[ description of main element symbols ]

1: upper cover plate

2: lower casing

3: screw for fixing PCB

4: PCB board

5: optical engine

6: jumper jumper wire

7: silica gel sheath

8: screw for fixing shell

9: optical fiber

10: optical fiber connector

11: substrate

12: socket with improved structure

13: golden finger

14: optical module

15: screw fastener

16: threaded hole

17: square groove

18: silica gel sheath

20: spacing boss

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description will be given to specific embodiments, structures, features and effects of a screw-fixed small-sized optical module according to the present invention with reference to the accompanying drawings and preferred embodiments.

Please refer to fig. 1-3, it is the structural schematic diagram of each part of the small-sized optical module fixed by screws of the present invention, this optical module includes the casing composed of the upper casing 1 and the lower bottom 2, the PCB 4 fixed in this casing is connected and fixed with the optical engine 5, this optical engine 5 is also connected with the jumper 6, the tail fiber of this jumper 6 is worn out by the upper casing 1 and the outlet fiber between the lower bottom 2, and the other end of this optical fiber extending out of the casing is also connected with the movable optical fiber connector 10, in the embodiment of the present invention, the optical fiber connector 10 is an MT connector, but is not limited thereto.

The embodiment of the utility model provides an in, go up shell 1 and go to the bottom 2 between the outlet fiber department be equipped with the square groove 17 of the recess 19 adaptation of 18 peripheries of silica gel sheath, recess 19 card is in square groove 17, and this recess 19 front and back step is spacing with this square groove 17 block, realizes the location of silica gel sheath 18 on the casing. The tail optical fiber penetrates out of the silica gel sheath 18, and the silica gel sheath 18 is also glued and bonded with the sheath of the optical fiber penetrating out of the silica gel sheath 18, so that the buffer effect is achieved when the optical fiber is subjected to external force.

In the embodiment of the present invention, the upper casing 1 and the lower bottom 2 are connected and fixed by the casing fixing screw 8. The PCB board 4 is provided with a fixing hole and a fool-proof positioning hole, wherein a PCB fixing screw 3 penetrates through the fixing hole to fix the PCB board in the upper shell 1, the fool-proof positioning hole is matched with the corresponding fool-proof protrusion in the upper shell to achieve fool-proof positioning of the PCB board and the upper shell, and the misassembly risk is avoided. And the PCB is also provided with a positioning bulge for realizing the matching positioning with the positioning holes on the optical engine 5 and the jumper 6. And the PCB is also provided with a peripheral circuit corresponding to the optical engine 5.

The front end of the PCB 4 extends out of the shell and is provided with a golden finger 13 which is used for being matched and inserted with a socket 12 fixed on the substrate 11, and the arrangement of the golden finger can meet the requirement of quick connection of an optical module and the substrate. The base plate 11 is provided with a through hole for the threaded rod part of the screw fastener 15 to pass through and for blocking the head part of the screw fastener 15. The lower base 2 is further provided with a threaded hole 16 which is used for being matched and locked with a rod part of a screw fastener 15 extending from the bottom of the base plate 11 to realize reliable locking between the optical module and the base plate.

The front ends of the upper shell 1 and the lower bottom 2 are respectively provided with a limiting boss 20 which is used for being matched with the socket 12 to realize the insertion limit between the printed board 4 and the socket 12, the insertion degree between the printed board golden finger and the socket is limited through the limiting boss 20, the two are prevented from being excessively inserted, the position of the shell on the substrate is also limited through the limiting boss 20, the concentricity of the through hole on the inserted rear substrate and the threaded hole 16 on the lower bottom is facilitated, and the screw locking fixation of the through hole and the threaded hole 16 on the lower bottom is realized.

The utility model discloses the optical module adopts golden finger and the connected mode of printing board standard socket to inserting, has adopted the simple and convenient mounting means of fix with screw simultaneously, possesses following advantage: the optical module shell has small size, directly extends out of the movable optical fiber joint, occupies small space and can meet the requirement of narrow space for board arrangement; the standard socket is preset on the base plate, and the module is fastened by the screw after being plugged with the socket, so that the installation is simple and convenient, the requirement of quick replacement is met, and the subsequent repair and maintenance cost is reduced; the casing adopts the design of lightweight miniaturization, compresses the size as far as possible under the prerequisite that can guarantee PCB installation space.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make modifications or changes equivalent to the equivalent embodiment of the above embodiments without departing from the scope of the present invention, but all the modifications, changes and modifications of the above embodiments by the technical spirit of the present invention are within the scope of the present invention.

Claims (9)

1. A screw-on miniature optical module system characterized by: the optical module comprises a shell, an optical engine and a jumper wire are arranged on a PCB (printed Circuit Board) fixed in the shell, wherein the front end of the PCB extends out of the shell and is provided with a golden finger, and a threaded hole is formed in the bottom of the shell; a socket which is matched and plugged with the golden finger of the PCB is fixed on the substrate; the base plate is also provided with a through hole corresponding to the threaded hole at the bottom of the shell, and the threaded part of the screw fastener passes through the through hole from the bottom of the base plate and is locked with the threaded hole at the bottom of the shell.

2. The screw-on compact optical module system of claim 1, wherein: the tail fiber of the jumper extends out of the shell and is connected with the movable optical fiber connector.

3. The screw-on compact optical module system of claim 2, wherein: the shell comprises an upper shell and a lower bottom, and the threaded hole is formed in the lower bottom.

4. A screw-on compact light module system as claimed in claim 3, characterized in that: the PCB board realizes accurate positioning in the upper shell through the matching of the fool-proof hole and the positioning hole on the PCB board and the corresponding bulge in the upper shell, and is fixed with the upper shell through the PCB fixing screw.

5. The screw-on miniature light module system according to claim 4, wherein: and the PCB is also provided with a positioning bulge which is used for being matched and positioned with the positioning holes on the optical engine and the jumper.

6. A screw-on compact light module system as claimed in claim 3, characterized in that: wherein, the optical fiber outlet between the upper shell and the lower bottom is provided with a square groove for clamping the groove at the periphery of the silica gel sheath, and the silica gel sheath is glued and bonded with the sheath of the optical fiber penetrating out of the silica gel sheath.

7. The screw-on compact optical module system of claim 1, wherein: the front end of the shell is also provided with a limiting boss for limiting the insertion length of the printed board golden finger and the socket.

8. The screw-on miniature light module system according to claim 7, wherein: wherein, the two limit bosses are respectively positioned above and below the golden finger.

9. A small-size optical module of screw fixation which characterized in that: which is a light module as claimed in any one of the claims 1 to 8.

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