Optical module board

Abstract

The utility model relates to the technical field of optical modules, and particularly discloses an optical module board which comprises a shell and a cover plate, the cover plate is arranged above the shell in a threaded mode, a circuit board placing area and laser placing areas are arranged in the shell respectively, first clamping grooves are formed in the two laser placing areas respectively, second clamping grooves are formed in the circuit board placing area, and the first clamping grooves are communicated with the second clamping grooves. A stabilizing mechanism is arranged in the circuit board placing area and comprises a circuit board body, golden fingers are fixedly installed on the side wall of the circuit board body, the golden fingers are equal in width, a laser body is placed in the laser placing area, and the golden fingers on the side wall of the circuit board body are equal in width. According to the method, the golden finger can be kept at the same etching rate in the etching process, and the surface of the whole golden finger is ensured to be uniformly etched, so that the problems of non-uniform etching amount and inconsistent shape are avoided, the flatness of a copper surface of a golden finger circuit is further improved, and the transmission stability and performance are improved.

Description

Technical Field

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

[0002] The optical module board is one of the core components of the optical module. It carries optical devices and integrated circuits and is the basis for the realization of the optical module's functions. The shell of the optical module board is a protective external structure used to protect the internal optical devices and integrated circuits. It also plays a role in fixing and supporting. The shell is usually made of metal or plastic materials and has good mechanical strength and anti-interference ability to ensure the stability and reliability of the optical module in various environments. The optical module board integrates various optical devices used for optical communication, including lasers, photodetectors, etc. These optical devices are responsible for the transmission, modulation, and reception of optical signals, and are key components for optical modules to realize optical communication.

[0003] When etching the gold finger on the existing optical module, the end of the side of the gold finger that is not connected to the circuit board is usually only one-fifth the width of the side connected to the circuit board. Due to the different widths, this will lead to different etching amounts on the gold finger during etching, which in turn leads to different flatness of the copper surface of the gold finger line, and thus inconsistent impedance of the circuit, affecting the stability and performance of signal transmission. In addition, the optical devices and integrated circuit boards inside the existing optical module are usually connected to each other, and the overall structure is relatively compact, which makes it inconvenient for staff to maintain the optical devices or circuit boards, and the practicality needs to be improved. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides an optical module board, which solves the technical problem that the prior devices are insufficient in practicality.

[0006] (II) Technical solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The optical module board comprises a shell and a cover plate, wherein the cover plate is threadedly installed above the shell, a circuit board placement area and a laser placement area are respectively provided inside the shell, a first card slot is provided inside the two laser placement areas, and a second card slot is provided inside the circuit board placement area;

[0009] A stabilizing mechanism is provided inside the circuit board placement area;

[0010] The stabilizing mechanism comprises a circuit board body, a gold finger is fixedly mounted on the side wall of the circuit board body, the gold finger is of equal width, and the laser body is placed inside the laser placement area.

[0011] Preferably: a first card block is fixedly installed on the lower end of the circuit board body, the first card block is adapted to the second card slot, a second card block is fixedly installed on the lower ends of the two laser bodies, the two second card blocks are adapted to the first card slot, electric wires are fixedly installed between the two laser bodies and the circuit board body, and a first limiting groove is symmetrically opened inside the circuit board body.

[0012] Preferably: a second limit groove is opened inside the two laser bodies, a first limit block is symmetrically fixedly installed at the lower end of the cover plate, and the two first limit blocks are adapted to the second limit groove, and a second limit block is symmetrically fixedly installed at the lower end of the cover plate, and the two second limit blocks are adapted to the first limit groove.

[0013] (III) Beneficial effects

[0014] 1. Since the width of one end of the traditional gold finger is different from that of the other end, this will lead to different etching amounts on the gold finger during etching, which will lead to different flatness of the copper surface of the gold finger circuit, and then make the impedance of the circuit inconsistent, affecting the stability and performance of signal transmission. Therefore, by setting the gold finger on the side wall of the circuit board body to be of equal width, the gold finger can maintain the same etching rate during the etching process, ensuring that the surface of the entire gold finger is evenly etched, thereby avoiding the problem of uneven etching amount and inconsistent shape, thereby improving the flatness of the copper surface of the gold finger circuit, and improving the stability and performance of transmission;

[0015] Second, by using the first clamping block and the second clamping block to install the circuit board body and the laser body inside the shell, and using the first limit block and the second limit block to adapt the first limit groove and the second limit groove on the circuit board body and the laser body, the limit fixation can be completed, thereby facilitating the maintenance of the circuit board body and the laser body, and by connecting the circuit board body and the laser body with wires, it is possible to avoid the metal pins of the transmission laser body being directly connected to the circuit board body, which can not only separate the transmission laser body and the laser body, but also avoid the direct transmission of vibration between the laser body and the circuit board body when the optical module board falls, which can easily cause the pins of the laser body to be detached from the circuit board body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0017] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0018] Figure 2 It is a three-dimensional exploded structural diagram of the utility model;

[0019] Figure 3 This is an exploded structural diagram of the cover plate connection of the utility model;

[0020] Figure 4 It is a cross-sectional view of the shell of the utility model;

[0021] Figure 5 This is an exploded structural diagram of the circuit board body connection of the utility model.

[0022] Legend: 11. Shell; 12. Cover; 13. Circuit board placement area; 14. Laser placement area; 15. First card slot; 16. Second card slot; 17. Circuit board body; 18. Gold finger; 19. Laser body; 21. First card block; 22. Second card block; 23. Wire; 24. First limit slot; 25. Second limit slot; 26. First limit block; 27. Second limit block. DETAILED DESCRIPTION

[0023] The embodiment of the present application effectively solves the technical problem of insufficient practicality of the existing device by providing an optical module board. Since the width of one end and the other end of the traditional gold finger are different, this will lead to different etching amounts on the gold finger when etching the gold finger, which in turn leads to different flatness of the copper surface of the gold finger circuit, and then the impedance of the circuit is inconsistent, affecting the stability and performance of signal transmission. Therefore, by setting the gold fingers on the side walls of the circuit board body to be of equal width, the gold fingers can maintain the same etching rate during the etching process, ensuring that the surface of the entire gold finger is evenly etched, thereby avoiding the problem of uneven etching amount and inconsistent shape, thereby improving the flatness of the copper surface of the gold finger circuit, improving the stability and performance of transmission, and By using the first clamping block and the second clamping block to install the circuit board body and the laser body inside the shell, and using the first limiting block and the second limiting block to adapt the first limiting groove and the second limiting groove on the circuit board body and the laser body, the limiting fixation can be completed, thereby facilitating the maintenance of the circuit board body and the laser body, and by connecting the circuit board body and the laser body with wires, it is possible to avoid the metal pins of the transmission laser body being directly connected to the circuit board body, which not only can separate the transmission laser body and the laser body, but also can avoid the direct transmission of vibration between the laser body and the circuit board body when the optical module board falls, which can easily cause the pins of the laser body to be detached from the circuit board body.

[0024] Example

[0025] like Figure 1-Figure 5As shown, the technical solution in the embodiment of the present application effectively solves the technical problem of insufficient practicality of the existing device, and the overall idea is as follows:

[0026] In view of the problems existing in the prior art, the utility model provides an optical module board, including a housing 11 and a cover plate 12, wherein the cover plate 12 is threadedly installed above the housing 11, and a circuit board placement area 13 and a laser placement area 14 are respectively provided inside the housing 11, and a first card slot 15 is provided inside the two laser placement areas 14, and a second card slot 16 is provided inside the circuit board placement area 13;

[0027] A stabilizing mechanism is provided inside the circuit board placement area 13;

[0028] The stabilizing mechanism includes a circuit board body 17, on the side wall of the circuit board body 17, a gold finger 18 is fixedly mounted, the gold finger 18 is of equal width, and a laser body 19 is placed inside the laser placement area 14. Since the widths of one end and the other end of the traditional gold finger 18 are different, this will result in different etching amounts on the gold finger 18 when etching the gold finger 18, and further result in different flatness of the copper surface of the gold finger 18 line, and further result in inconsistent impedance of the circuit, affecting the stability and performance of signal transmission. Therefore, by setting the gold finger 18 on the side wall of the circuit board body 17 to be of equal width, the gold finger 18 can maintain the same etching rate during the etching process, ensuring that the surface of the entire gold finger 18 is evenly etched, thereby avoiding the problems of uneven etching amount and inconsistent shape, thereby improving the flatness of the copper surface of the gold finger 18 line, and improving the stability and performance of transmission.

[0029] A first clamping block 21 is fixedly installed at the lower end of the circuit board body 17, and the first clamping block 21 is adapted to the second clamping slot 16. A second clamping block 22 is fixedly installed at the lower ends of the two laser bodies 19, and the two second clamping blocks 22 are adapted to the first clamping slot 15. A wire 23 is fixedly installed between the two laser bodies 19 and the circuit board body 17. A first limiting groove 24 is symmetrically provided inside the circuit board body 17, and a second limiting groove 25 is provided inside the two laser bodies 19. A first limiting block 26 is symmetrically fixedly installed at the lower end of the cover plate 12, and the two first limiting blocks 26 are adapted to the second limiting groove 25. A second limiting block 27 is symmetrically fixedly installed at the lower end of the cover plate 12, and the two second limiting blocks 27 are adapted to the first limiting groove 24. The device uses the first clamping block 21 and the second clamping block 22 to fix the wire The circuit board body 17 and the laser body 19 are installed inside the shell 11, and the first limit block 26 and the second limit block 27 are used to adapt the first limit groove 24 and the second limit groove 25 on the circuit board body 17 and the laser body 19 to complete the limit fixation, thereby facilitating the maintenance of the circuit board body 17 and the laser body 19, and by connecting the circuit board body 17 and the laser body 19 with wires 23, it is possible to avoid the metal pins of the transmission laser body 19 being directly connected to the circuit board body 17, which not only can separate the transmission laser body 19 and the laser body 19, but also can avoid the direct mutual transmission of vibration between the laser body 19 and the circuit board body 17 when the optical module board falls, which can easily cause the pins of the laser body 19 to be detached from the circuit board body 17.

[0030] Working principle:

[0031] The first step is that when the laser body 19 and the circuit board body 17 need to be maintained, the screws connecting the cover plate 12 and the housing 11 can be rotated first, and then the cover plate 12 can be taken out. At this time, the cover plate 12 will drive the first limit block 26 and the second limit block 27 to disengage from the second limit groove 25 and the first limit groove 24. Then the staff can directly take out the circuit board body 17 and the laser body 19, so that the laser body 19 drives the second clamping block 22 to disengage from the first clamping groove 15 and the circuit board body 17 drives the first clamping block 21 to disengage from the second clamping groove 16. Then the staff can check the wires 23 between the laser body 19 and the circuit board body 17 or detect the laser body 19 and the circuit board body 17 and perform maintenance;

[0032] In the second step, when the maintenance is completed, the staff can align the first clamping block 21 on the circuit board body 17 with the second clamping slot 16 and align the second clamping block 22 on the laser body 19 with the first clamping slot 15 and place them into the shell 11. Then, the cover 12 can be installed on the shell 11 with screws again. At this time, the second limit block 27 and the first limit block 26 on the cover 12 will be respectively inserted into the first limit slot 24 and the second limit slot 25.

[0033] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. An optical module board, comprising a housing (11) and a cover plate (12), wherein the cover plate (12) is threadedly mounted above the housing (11), and a circuit board placement area (13) and a laser placement area (14) are respectively provided inside the housing (11), characterized in that: A first card slot (15) is provided inside each of the two laser placement areas (14), and a second card slot (16) is provided inside the circuit board placement area (13); A stabilizing mechanism is provided inside the circuit board placement area (13); The stabilizing mechanism comprises a circuit board body (17), a gold finger (18) is fixedly mounted on a side wall of the circuit board body (17), the gold finger (18) is of equal width, and a laser body (19) is placed inside the laser placement area (14).

2. The optical module board according to claim 1, characterized in that: A first clamping block (21) is fixedly mounted on the lower end of the circuit board body (17); Wherein, the first card block (21) is adapted to the second card slot (16).

3. The optical module board according to claim 2, characterized in that: A second clamping block (22) is fixedly mounted on the lower ends of the two laser bodies (19); Wherein, the two second card blocks (22) are both adapted to the first card slot (15).

4. The optical module board according to claim 3, characterized in that: An electric wire (23) is fixedly installed between the two laser bodies (19) and the circuit board body (17); Wherein, a first limiting groove (24) is symmetrically provided inside the circuit board body (17).

5. The optical module board according to claim 4, characterized in that: A second limiting groove (25) is provided inside each of the two laser bodies (19), and a first limiting block (26) is symmetrically fixedly mounted on the lower end of the cover plate (12); Wherein, the two first limiting blocks (26) are both matched with the second limiting groove (25).

6. The optical module board according to claim 5, characterized in that: A second limiting block (27) is symmetrically fixedly mounted on the lower end of the cover plate (12); Wherein, the two second limiting blocks (27) are both matched with the first limiting groove (24).

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