CN210572885U

CN210572885U - SFP optical module

Info

Publication number: CN210572885U
Application number: CN201921383363.2U
Authority: CN
Inventors: 王自力; 杨棵
Original assignee: Wuhan Huagong Genuine Optics Tech Co Ltd
Current assignee: Wuhan Huagong Genuine Optics Tech Co Ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-05-19
Anticipated expiration: 2029-08-23

Abstract

The utility model relates to an optical module technical field provides a SFP optical module, including the base and can entangle the shell of base, the pedestal mounting has the spliced pole, the inner wall of one of them side of shell has been installed to the inside first connection piece that extends of shell, the shell cover is in back on the base, first connection piece butt is in the spliced pole deviates from on the side of the electric mouth of base. The utility model relates to an SFP optical module, through the cooperation of spliced pole and first connecting piece, cancelled the traditional mode of screw fixation base and shell, reduced the part number, simplified the assembly to reach the purpose of reduce cost; because the protective housing that the department ubiquitous of the unlocking piece of light mouth has been cancelled, the part number has been reduced, consequently adopts the cooperation of first dogtooth, first recess, second dogtooth, second recess to restrict the degree of freedom of unlocking piece, has avoided the problem that probably brings because of the structure simplification (save the protective housing).

Description

SFP optical module

Technical Field

The utility model relates to an optical module technical field specifically is a SFP optical module.

Background

SFP optical modules are increasingly competitive, and cost control becomes a key for product survival. At present, SC optical port type SFP optical module structures on the market generally have the problems of more parts, higher overall price and more complex production process, so that the cost is difficult to obviously reduce. For example, in the prior art, the base and the housing and the PCB and the housing are fixedly connected by screws, although the screw connection is firm, the number of parts is increased, and corresponding screw holes are required to be formed, so that the production process is increased and the cost is increased after large-scale production.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a SFP optical module through the cooperation of spliced pole and first connecting piece, has cancelled this traditional mode of screw unable adjustment base and shell, has reduced the part number, has simplified the assembly to reduce cost's purpose has been reached.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: the SFP optical module comprises a base and a shell capable of sleeving the base, wherein the base is provided with a connecting column, a first connecting piece extending towards the inside of the shell is arranged on the inner wall of one side face of the shell, the shell is sleeved on the base, and the first connecting piece is abutted to the side face, deviating from an electric port of the base, of the connecting column.

Further, the connecting column is provided with a step structure which can prop against the first connecting sheet, and the step structure is arranged on the side surface of the connecting column which can be abutted against the first connecting sheet.

Furthermore, the shell is provided with a first window for the first connecting sheet to pass in and out, and the first window is arranged at the position where the first connecting sheet is arranged on the shell.

Further, the first connecting piece is an elastic piece.

Furthermore, a convex rib capable of being clamped into a gap between the EMI finger elastic sheet of the shell and the shell is arranged at the light port of the base.

Furthermore, the pressing plate and the base at the light opening of the base are both of a sawtooth structure, and the sawteeth of the pressing plate are meshed with the sawteeth of the base.

Furthermore, an unlocking piece capable of unlocking the connection between the shell and the cage is arranged at the light port of the base.

Further, the unlocking piece can be pushed to finish unlocking by the pull ring.

Further, a limiting structure for limiting the degree of freedom of the unlocking member is included.

Further, limit structure is including locating the unlocking piece is close to first dogtooth and the first recess of pull ring one side still including locating the pull ring is close to second dogtooth and the second recess of one side of unlocking piece, first dogtooth card is gone into first recess, second dogtooth card is gone into the second recess.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through the cooperation of spliced pole and first splicing piece, cancelled the traditional mode of screw fixation base and shell, reduced the part number, simplified the assembly to reach reduce cost's purpose.

2. Through the second connecting sheet, the PCB can be propped against, the traditional mode that the shell and the PCB are fixed by screws is also eliminated, the number of parts is reduced, the assembly is simplified, and the aim of reducing the cost is fulfilled.

3. Because the protective housing that the department ubiquitous of the unlocking piece of light mouth has been cancelled, the part number has been reduced, consequently adopts the cooperation of first dogtooth, first recess, second dogtooth, second recess to restrict the degree of freedom of unlocking piece, has avoided the problem that probably brings because of the structure simplification (save the protective housing).

4. The EMI/ESD performance is ensured by the technical characteristics of the engagement of the ribs and the saw teeth.

Drawings

Fig. 1 is a first perspective schematic view of an SFP optical module according to an embodiment of the present invention;

fig. 2 is a second perspective schematic view of an SFP optical module according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of an SFP optical module provided in an embodiment of the present invention, with a housing removed;

FIG. 4 is an enlarged view taken at A of FIG. 1;

FIG. 5 is an enlarged view of FIG. 2 at B;

in the reference symbols: 1-a housing; 10-a first connecting piece; 11-a first window; 12-a second connecting piece; 13-a second window; 14-EMI finger dome; 2-a base; 20-connecting columns; 201-step structure; 21-a rib; 22-a saw-tooth like structure; 3-a PCB board; 4-unlocking the lock; 40-a first lobe; 41-a first groove; 5-a light port; 6-electric port; 7-pressing a plate; 8-a pull ring; 80-a second lobe; 81-second recess.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, none of the three figures have an upper cage. The embodiment of the utility model provides a SFP optical module, include base 2 and can entangle shell 1 of base 2, spliced pole 20 is installed to base 2, the inner wall of one of them side of shell 1 install to the inside first connecting piece 10 that extends of shell 1, shell 1 cover is in back on the base 2, first connecting piece 10 butt is in spliced pole 20 deviates from on the side of the electric mouth 6 of base 2. In this embodiment, the SFP optical module is a small form-factor pluggable optical module, and the housing 1 is sleeved on the base 2 from the electrical port 6 to the optical port 5 of the base 2, and after the housing 1 is sleeved on the base 2, the first connecting piece 10 can be limited by the connecting column 20, so as to prevent the housing 1 from separating from the base 2. In the prior art, usually, after the base 2 is sleeved with the housing 1, the housing and the base are fixed by screws, and then a special screw needs to be provided to connect the housing and the base, and a threaded hole needs to be correspondingly formed to match with the screw. The present embodiment starts from the structure of the optical module itself, and sets the connection column 20 and the first connection piece 10 on the basis of the original structure, specifically, the connection column 20 is led out from the base 2, the connection column 20 may be a part of the base 2 itself, and the used material is the same as that of the base 2, so the process that may need to be designed is to form it into a column shape, and the first connection piece 10 may also be a part of the housing 1, and the used material is the same as that of the housing 1, thus, the parts are reduced, and the cost consumed by them and the complexity of the required preparation process are greatly less than the cost consumed by the need of special external screws, the provision of threaded holes, and the installation of screws, and the complexity of the preparation process. Therefore, the manufacturer saves the cost and simplifies the process, so that the product bought by the consumer is cheaper, and the price is lower under the condition of ensuring that the quality of the product is the same as that of the previous product, which is undoubtedly a great gospel for the consumer.

The following are specific examples:

in order to optimize the above solution, referring to fig. 1 to 4, the connection post 20 has a step structure 201 capable of abutting against the first connection piece 10, and the step structure 201 is disposed at a side surface of the connection post 20 capable of abutting against the first connection piece 10. In the above embodiment, the connection column 20 only blocks the first connection piece 10 through one side surface thereof to play a limiting role, in this embodiment, in order to achieve a better limiting effect, the step structure 201 is arranged on the connection column 20, the end portion of the first connection piece 10 can be clamped on the step structure 201, and thus, two surfaces of the step structure 201 can both generate a limiting effect on the end portion of the first connection piece 10 to play a better limiting effect.

To further optimize the above solution, please refer to fig. 1-3, the housing 1 is provided with a first window 11 for the first connecting piece 10 to enter and exit, and the first window 11 is provided at the position of the housing 1 where the first connecting piece 10 is provided. In the present embodiment, the first window 11 is provided to provide a certain movement space for the first connecting piece 10, so as to prevent the first connecting piece 10 from obstructing the housing 1 when the housing 1 is fitted on the base 2. Preferably, the first connecting piece 10 is an elastic piece having elasticity, so that it can be easily moved.

As an optimization scheme of the embodiment of the present invention, please refer to fig. 1-3, the SFP optical module further includes a PCB 3 disposed on the base 2, and the PCB 3 is located in the housing 1; and a locking structure capable of locking the position of the PCB 3 is arranged on the side surface of the shell 1. In this embodiment, as well as the above-mentioned locking between the base 2 and the housing 1, the conventional way of fixing with screws is also cancelled in the locking between the housing 1 and the PCB 3, and the locking structure formed by the housing 1 itself is used to limit the PCB 3, so as to achieve the purpose of locking the same. This also saves costs and simplifies the production process.

In order to further optimize the above solution, referring to fig. 1-3 and 5, the locking structure includes a second connecting piece 12 disposed on the side surface of the housing 1, and the second connecting piece 12 has an edge capable of abutting against the PCB board 3. In this embodiment, locking is effected in the same way as in the first connecting piece 10 described above, also by abutment of the edge of the second connecting piece 12 against the edge of the PCB 3. The shape of the second connecting piece 12 can be the same as or different from that of the first connecting piece 10, and only the position where the second connecting piece can abut against the PCB 3 needs to be found, for example, in the embodiment, the second connecting piece is of a bent structure, and after the second connecting piece is bent, just one edge of the second connecting piece can abut against the PCB 3. Preferably, a small bayonet is further provided on the edge of the second connecting piece 12, and the edge of the PCB 3 can be inserted into the bayonet, or a small bayonet is provided on the edge of the PCB 3, and the edge of the second connecting piece 12 is inserted into the bayonet to form a limit in the direction from the optical port 5 to the electrical port 6.

To further optimize the above solution, please refer to fig. 1-3, a side surface of the housing 1 provided with the second connecting piece 12 is provided with a second window 13 for the second connecting piece 12 to enter and exit. In this embodiment, the purpose of the second window 13 is the same as that of the first window 11, and will not be described herein again.

As an optimized solution of the embodiment of the present invention, please refer to fig. 1-3, a protruding rib 21 capable of being clamped into a gap between the EMI finger elastic piece 14 of the housing 1 and the housing 1 is disposed at the light port 5 of the base 2. And the pressing plate 7 at the light port 5 of the base 2 and the base 2 are both in a sawtooth structure 22, and the sawtooth of the pressing plate is meshed with the sawtooth of the base 2. In this embodiment, we also eliminate the protective shell that is commonly present at the unlocking member 4 at the optical port 5, which also reduces parts (and thus saves costs) and simplifies the process, but it may affect EMI/ESD performance, so that by these two embodiments, for example, the first one, using the rib 21 to snap into the gap between the EMI finger tab 14 and the body of the housing 1, eliminating the gap, can function as a barrier to EMI/ESD (electromagnetic/electrostatic), and the second, also, this type of engagement is much less than the one formed by the direct connection of the pressure plate to the base 2 (forming a line of gaps), and thus can also function as a barrier to EMI/ESD (electromagnetic/electrostatic).

Referring to fig. 1-3, an unlocking member 4 for unlocking the connection between the housing 1 and the cage is disposed at the optical opening 5 of the base 2. In this embodiment, the present optical module also has an unlocking member 4 to facilitate the connection of the interface housing 1 and the cage. The unlocking mode is the same as the existing unlocking mode, and the detailed description is omitted here.

To further optimize the above solution, please refer to fig. 1-3, the optical module further includes a pull ring 8 for pushing the unlocking member to complete the unlocking. In this embodiment, the unlocking member 4 can be conveniently pushed to complete unlocking by using the pull ring 8, and the operation manner thereof is conventional in the art and will not be described herein again.

To further optimize the above solution, referring to fig. 1 to 3, the optical module further includes a limiting structure for limiting the degree of freedom of the unlocking member 4. In the present embodiment, the degree of freedom of the unlocking member 4 can be restricted by using the restricting structure, thereby preventing the unlocking member 4 from falling off.

In order to further optimize the above solution, please refer to fig. 1-3, the limiting structure includes a first tooth 40 and a first groove 41 disposed on one side of the unlocking element 4 close to the tab 8, and further includes a second tooth 80 and a second groove 81 disposed on one side of the tab 8 close to the unlocking element 4, the first tooth 40 is clamped into the first groove 41, and the second tooth 80 is clamped into the second groove 81. In the present embodiment, the limiting structure is in the form of a tooth buckle to limit the degree of freedom of the unlocking member 4, thus avoiding the problem that may be caused by the simplified structure (the omission of the protective case). Of course, in addition to this limitation, other limitation methods may be used, for example, a stopper may be provided at a certain position in the stroke of the unlocking member, and this embodiment is not limited thereto as long as the degree of freedom of the unlocking member 4 can be limited.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An SFP optical module, comprising a base and a shell capable of sleeving the base, characterized in that: the base is provided with a connecting column, a first connecting sheet extending towards the inside of the shell is arranged on the inner wall of one side face of the shell, the shell is sleeved on the base, and the first connecting sheet is abutted against the side face, deviating from the electric port of the base, of the connecting column.

2. The SFP optical module as claimed in claim 1, wherein: the connecting column is provided with a step structure which can prop against the first connecting sheet, and the step structure is arranged on the side surface of the connecting column which can prop against the first connecting sheet.

3. The SFP optical module as claimed in claim 2, wherein: the shell is provided with a first window for the first connecting sheet to pass in and out, and the first window is arranged at the position where the first connecting sheet is arranged on the shell.

4. The SFP optical module as claimed in claim 1, wherein: the first connecting piece is an elastic piece.

5. The SFP optical module as claimed in claim 1, wherein: the light port of the base is provided with a convex edge which can be clamped into a gap between the EMI finger elastic sheet of the shell and the shell.

6. The SFP optical module as claimed in claim 1, wherein: the pressing plate and the base at the light opening of the base are both of a sawtooth structure, and sawteeth of the pressing plate are meshed with sawteeth of the base.

7. The SFP optical module as claimed in claim 1, wherein: an unlocking piece capable of unlocking the connection between the shell and the cage is arranged at the light port of the base.

8. The SFP optical module as claimed in claim 7, wherein: the unlocking piece can be pushed to finish unlocking by the pull ring.

9. The SFP optical module as claimed in claim 8, wherein: and a limiting structure for limiting the degree of freedom of the unlocking member.

10. The SFP optical module as claimed in claim 9, wherein: the limit structure is including locating unlocking piece is close to first dogtooth and the first recess of pull ring one side, still including locating the pull ring is close to second dogtooth and the second recess of one side of unlocking piece, first dogtooth card is gone into first recess, second dogtooth card is gone into the second recess.