SFP optical module convenient to assemble

Abstract

The utility model provides an SFP optical module convenient to assemble, which comprises an upper shell, a lower shell and a circuit board, the upper shell is arranged at the top of the lower shell, the circuit board is embedded in the lower shell, an optical fiber connector is arranged on the lower shell, a limiting column is arranged on the lower shell, and the optical fiber connector is connected with the limiting column. The upper shell is provided with fixing holes connected with the limiting columns in a clamped mode, the ends, away from the fixing holes, of the limiting columns are provided with elastic pieces, the two sides of the circuit board are provided with clamping grooves, and the inner side wall of the lower shell is provided with clamping plates connected with the clamping grooves in a clamped mode. According to the utility model, through the arrangement of the clamping plate, the clamping groove, the limiting column, the fixing hole and the elastic piece, the optical module is assembled in a clamping connection mode, and compared with a screw installation structure of an existing optical module, the installation mode is more convenient, and the manual workload is smaller.

Description

Technical Field

[0001] The utility model relates to the technical field of optical modules, in particular to an SFP optical module convenient for assembly. Background Art

[0002] The SFP optical module is a hot-pluggable small package module with an SFP package. It has a small size and can be directly inserted into network devices such as network switches and routers to achieve optical fiber communication and data transmission. The SFP optical module mainly consists of a laser (including a transmitter TOSA and a receiver ROSA), a circuit board IC, and external accessories. The external accessories include a housing, a base, a PCBA, a pull ring, a buckle, an unlocking piece, a rubber plug, etc. For the assembly of the optical module, prepare parts such as the upper shell, lower shell, fixing screws, and sealing washers of the optical module, and ensure that their quality and specifications meet the requirements. Carefully align the upper shell and the lower shell to ensure that each interface and slot correspond accurately. Use a suitable screwdriver to tighten the fixing screws according to the specified torque and sequence to make the upper and lower shells tightly combined. The existing optical module structure has many screw and nut installation structures, and the installation process is very cumbersome, with a large amount of manual work. Summary of the Utility Model

[0003] The problem to be solved by the utility model is the problem that the existing SFP optical module structure is cumbersome to install and has a large amount of manual work.

[0004] To solve the above technical problems, the utility model provides an SFP optical module convenient for assembly, including an upper housing, a lower housing, and a circuit board. It is characterized in that the upper housing is arranged on the top of the lower housing, the lower housing is embedded with the circuit board, the lower housing is provided with an optical fiber connector, the lower housing is provided with a limiting post, the upper housing is provided with a fixing hole that is snap-fitted with the limiting post, an elastic member is arranged at one end of the limiting post away from the fixing hole, clamping grooves are formed on both sides of the circuit board, and a clamping plate that is snap-fitted with the clamping grooves is arranged on the inner side wall of the lower housing. An optical fiber plug board is arranged at one end of the circuit board away from the optical fiber connector.

[0005] Preferably, sliding grooves are respectively formed on the outer side wall of one end of the lower housing away from the optical fiber connector. A push plate is arranged on the limiting post, one end of the push plate away from the limiting post is slidably connected with the sliding groove, a sliding hole communicated with the sliding groove is formed inside the lower housing, the limiting post, the elastic member, and the push plate penetrate through the inside of the sliding hole, and the push plate extends to the outside of the lower housing through the sliding groove.

[0006] Preferably, a front support seat and a rear support seat are respectively arranged at both ends inside the lower housing, and the front support seat and the rear support seat are respectively snap-fitted with both ends of the circuit board.

[0007] Preferably, the engaging plate is made of engineering plastic or stainless steel material.

[0008] Preferably, positioning rods are respectively arranged on both sides of the bottom of the upper housing.

[0009] Preferably, positioning holes for engaging connection with the positioning rods are arranged on the top of the lower housing.

[0010] Preferably, the elastic member is made of a metal spring.

[0011] Preferably, the card slot and the engaging plate are arranged at one end far from the fixing hole and the limiting post.

[0012] Preferably, the fixing hole and the limiting post are respectively arranged at one end of the upper housing and the lower housing far from the optical fiber connector.

[0013] Preferably, the optical fiber plug board is arranged outside the upper housing and the lower housing.

[0014] Compared with the prior art, the utility model provides an SFP optical module convenient for assembly, having the following beneficial effects:

[0015] 1. By arranging an engaging plate, a card slot, a limiting post, a fixing hole and an elastic member, the circuit board is horizontally placed inside the lower housing, and at the same time, it is ensured that the engaging plate and the card slot are engaged and connected. After the circuit board and the lower housing are assembled, the upper housing is placed on the top of the lower housing, and then the limiting post is pushed towards the elastic member, so that the elastic member is compressed to generate an elastic force, making the bottom of the upper housing contact with the top of the lower housing. Then, the elastic member is released, and the elastic member drives the limiting post to insert into the fixing hole, thereby completing the assembly of the upper housing and the lower housing. Compared with the screw and nut installation structure of the existing SFP optical module, the installation method is more convenient and the manual workload is smaller. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 is a cross-sectional view of the inside of the sliding hole of the utility model;

[0018] Figure 3 is Figure 1 the enlarged view at A in

[0019] In the figure: 1. Upper housing; 2. Lower housing; 3. Circuit board; 4. Optical fiber connector; 5. Limiting post; 6. Fixing hole; 7. Elastic member; 8. Card slot; 9. Engaging plate; 10. Optical fiber plug board; 11. Chute; 12. Push plate; 13. Sliding hole; 14. Front support seat; 15. Rear support seat; 16. Positioning rod; 17. Positioning hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The utility model relates to an SFP optical module convenient for assembly, as Figures 1-3 shown, which includes an upper shell 1, a lower shell 2 and a circuit board 3. The upper shell 1 is arranged on the top of the lower shell 2. The lower shell 2 is embedded with the circuit board 3. A fiber optic connector 4 is arranged on the lower shell 2. A limiting post 5 is arranged on the lower shell 2. A fixing hole 6 for snap-fitting connection with the limiting post 5 is opened on the upper shell 1. An elastic member 7 is arranged at one end of the limiting post 5 away from the fixing hole 6. Clamping grooves 8 are opened on both sides of the circuit board 3. A clamping plate 9 for snap-fitting connection with the clamping grooves 8 is arranged on the inner side wall of the lower shell 2. A fiber optic plug board 10 is arranged at one end of the circuit board 3 away from the fiber optic connector 4. By arranging the upper shell 1 and the lower shell 2, the circuit board 3 is arranged between the upper shell 1 and the lower shell 2. A fiber optic connector 4 is arranged at one end of the lower shell 2. A laser and a detector are respectively installed with the fiber optic connector 4. The fiber optic plug board 10 is arranged at one end of the circuit board 3 away from the laser and the detector. By arranging the limiting post 5, the fixing hole 6 and the elastic member 7, one end of the limiting post 5 is installed with the elastic member 7, and the other end of the limiting post 5 is inserted into the fixing hole 6, realizing the movable insertion of the limiting post 5 and the fixing hole 6. By arranging the clamping grooves 8 and the clamping plate 9, the clamping plate 9 and the clamping grooves 8 are snap-fitted, realizing the convenient installation of the circuit board 3 and the lower shell 2. Specifically, the circuit board 3 is horizontally placed inside the lower shell 2, and at the same time, it is ensured that the clamping plate 9 and the clamping grooves 8 are snap-fitted. After the circuit board 3 and the lower shell 2 are assembled, the upper shell 1 is placed on the top of the lower shell 2, and then the limiting post 5 is pushed in the direction of the elastic member 7, so that the elastic member 7 is compressed to generate an elastic force, making the bottom of the upper shell 1 contact with the top of the lower shell 2. Then the elastic member 7 is released, and the elastic member 7 drives the limiting post 5 to insert into the fixing hole 6, so that the upper shell 1 and the lower shell 2 are assembled. Compared with the screw and nut installation structure of the existing optical module, the installation method is more convenient and the manual workload is smaller.

[0021] In an embodiment of the utility model, sliding grooves 11 are respectively opened on the outer side wall of one end of the lower shell 2 away from the fiber optic connector 4. A push plate 12 is arranged on the limiting post 5. One end of the push plate 12 away from the limiting post 5 is slidably connected with the sliding groove 11. A sliding hole 13 communicated with the sliding groove 11 is opened inside the lower shell 2. The limiting post 5, the elastic member 7 and the push plate 12 penetrate through the inside of the sliding hole 13. The push plate 12 extends to the outside of the lower shell 2 through the sliding groove 11. By arranging the sliding groove 11, the push plate 12 and the sliding hole 13, the sliding grooves 11 are opened on both sides of the lower shell 2, the sliding hole 13 is opened in the length direction of the lower shell 2 and communicated with the sliding groove 11. By pushing the push plate 12 from the outside of the lower shell 2, the push plate 12 drives the limiting post 5 to move, so that the limiting post 5 can be controlled more conveniently. When the push plate 12 is released, the elastic force generated by the elastic member 7 acts on the push plate 12 to move, and the push plate 12 drives the limiting post 5 to slide in the sliding hole 13.

[0022] In an embodiment of the present utility model, a front support seat 14 and a rear support seat 15 are respectively arranged at two ends inside the lower housing 2. The front support seat 14 and the rear support seat 15 are respectively engaged and connected with two ends of the circuit board 3. By providing the front support seat 14 and the rear support seat 15, they support from two ends below the circuit board 3 respectively, improving the stability of the circuit board 3.

[0023] In an embodiment of the present utility model, the engaging plate 9 is made of engineering plastic or stainless steel. By providing the above structure, the toughness of the engaging plate 9 is improved, the engaging plate 9 undergoes a certain deformation, and it does not break after withstanding an external force.

[0024] In an embodiment of the present utility model, positioning rods 16 are respectively arranged on both sides of the bottom of the upper housing 1. By providing the positioning rods 16, the positioning rods 16 are engaged and connected with the lower housing 2, improving the stability of the upper housing 1 and the lower housing 2.

[0025] In an embodiment of the present utility model, positioning holes 17 engaged with the positioning rods 16 are arranged at the top of the lower housing 2. By providing the positioning holes 17, the positioning rods 16 are engaged and connected with the positioning holes 17, realizing the detachable connection between the upper housing 1 and the lower housing 2.

[0026] In an embodiment of the present utility model, the elastic member 7 is made of a metal spring. By providing the above structure, the metal spring is a helical spring capable of withstanding axial pressure, enabling the elastic member 7 to withstand axial pressure.

[0027] In an embodiment of the present utility model, the card slot 8 and the engaging plate 9 are arranged at one end away from the fixing hole 6 and the limiting post 5. By providing the above structure, the two ends of the upper housing 1 and the lower housing 2 are firmly connected, making the installation of the upper housing 1 and the lower housing 2 more secure.

[0028] In an embodiment of the present utility model, the fixing hole 6 and the limiting post 5 are respectively arranged at one end of the upper housing 1 and the lower housing 2 away from the optical fiber connector. By providing the above structure, the installation of the upper housing 1 and the lower housing 2 is made more secure.

[0029] In an embodiment of the present utility model, the optical fiber plug board 10 is arranged outside the upper housing 1 and the lower housing 2. By providing the above structure, it is convenient for the optical fiber plug board 10 to be accurately plugged into the device.

[0030] In use, first, install the circuit board 3 and the lower housing 2. Place the circuit board 3 horizontally inside the lower housing 2, and at the same time ensure that the engaging plate 9 and the card slot 8 are engaged. After the circuit board 3 and the lower housing 2 are assembled, place the upper housing 1 on the top of the lower housing 2, and then push the push plate 12 in the direction away from the lower housing 2. The push plate 12 drives the limit post 5 to move, and the limit post 5 compresses the elastic member 7. The elastic member 7 is compressed to generate an elastic force, making the bottom of the upper housing 1 contact the top of the lower housing 2. Then release the elastic member 7, and the elastic force generated by the elastic member 7 drives the limit post 5 to insert into the fixing hole 6. At the same time, ensure that the positioning rod 16 and the positioning hole 17 are vertically aligned, and engage the positioning rod 16 and the positioning hole 17. Thus, the upper housing 1 and the lower housing 2 are assembled. When removing the optical module, push the push plate 12 in the direction away from the lower housing 2. The push plate 12 drives the limit post 5 to be compressed, and the limit post 5 moves out of the fixing hole 6. Then hold the upper housing 1 and pull it in the direction away from the lower housing 2, and the positioning rod 16 and the positioning hole 17 are separated, thus removing the upper housing 1 and the lower housing 2.

[0031] It can be understood that the present utility model is described by some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. Additionally, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.

Claims

1. An SFP optical module that is easy to assemble, comprising an upper housing (1), a lower housing (2) and a circuit board (3), characterized in that: The upper shell (1) is arranged on the top of the lower shell (2); the circuit board (3) is embedded in the lower shell (2); an optical fiber connector (4) is arranged on the lower shell (2); a limiting column (5) is arranged on the lower shell (2); a fixing hole (6) which is snap-fitted with the limiting column (5) is provided on the upper shell (1); an elastic member (7) is provided at one end of the limiting column (5) away from the fixing hole (6); slots (8) are provided on both sides of the circuit board (3); a snap-fitting plate (9) which is snap-fitted with the slots (8) is provided on the inner side wall of the lower shell (2); and an optical fiber plug board (10) is provided at one end of the circuit board (3) away from the optical fiber connector (4).

2. The SFP optical module that is easy to assemble according to claim 1, characterized in that: The outer wall of the lower shell (2) at one end away from the optical fiber connector (4) is respectively provided with a sliding groove (11), and the limit column (5) is provided with a push plate (12), and the end of the push plate (12) away from the limit column (5) is slidably connected to the sliding groove (11), and the interior of the lower shell (2) is provided with a sliding hole (13) connected to the sliding groove (11), the limit column (5), the elastic member (7) and the push plate (12) are penetrated into the interior of the sliding hole (13), and the push plate (12) passes through the sliding groove (11) and extends to the outside of the lower shell (2).

3. The SFP optical module that is easy to assemble according to claim 1, characterized in that: A front support seat (14) and a rear support seat (15) are respectively provided at the two ends inside the lower shell (2); the front support seat (14) and the rear support seat (15) are respectively engaged and connected with the two ends of the circuit board (3).

4. The SFP optical module that is easy to assemble according to claim 1, characterized in that: The clamping plate (9) is made of engineering plastic or stainless steel.

5. The SFP optical module that is easy to assemble according to claim 1, characterized in that: Positioning rods (16) are respectively arranged on both sides of the bottom of the upper shell (1).

6. The SFP optical module that is easy to assemble according to claim 5, characterized in that: The top of the lower shell (2) is provided with a positioning hole (17) which is snap-connected with the positioning rod (16).

7. The SFP optical module that is easy to assemble according to claim 1, characterized in that: The elastic member (7) is made of a metal spring.

8. The SFP optical module that is easy to assemble according to claim 1, characterized in that: The clamping groove (8) and the clamping plate (9) are arranged at an end away from the fixing hole (6) and the limiting column (5).

9. The SFP optical module that is easy to assemble according to claim 1, characterized in that: The fixing hole (6) and the limiting column (5) are respectively arranged at one end of the upper shell (1) and the lower shell (2) away from the optical fiber connector (4).

10. The SFP optical module that is easy to assemble according to claim 1, characterized in that: The optical fiber plug-in board (10) is arranged outside the upper shell (1) and the lower shell (2).

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