Welding fixture of optical module with flexible boards TOSA and ROSA

Abstract

The utility model discloses a welding fixture for an optical module with flexible boards TOSA and ROSA, which comprises a base, six groups of PCB grooves and ROSA grooves are respectively arranged at one end of the front surface of the top of the base, the PCB grooves and the ROSA grooves are matched with each other, PCBs and ROSA are respectively arranged in the six groups of PCB grooves and ROSA grooves, and the PCBs and the ROSA are welded and fixed; the problem that operation is inconvenient for workers is solved, a standard operation mode is provided for the workers, the consistency of the welding size of the clamp is achieved, the product yield is improved, the repair probability and cost are reduced, and the problems that the TOSA with the soft board is difficult to weld, the TOSA direction with the soft board is inconsistent with the PCB welding direction, the efficiency is low, and the welding cost is low are solved. Meanwhile, a TOSA with a soft board and an ROSA with a soft board can be welded, repeated disassembly and assembly of the PCBs and the ROSA are avoided, the later production efficiency is improved, the cost is reduced, in order to improve the efficiency, six PCBs can be welded through one clamp, the repeated disassembly and assembly time is greatly saved, the efficiency is improved, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of optical module welding, and specifically relates to a welding fixture for a flexible board integrated TOSA and ROSA of an optical module. Background Technique

[0002] With the development of the network, from the previous 2G network to the current 5G network and even higher in the future, these upgrades have changed people's living environment and made life better and better. An optical module is a connection module that plays the role of optical-electrical conversion. Among them, the transmitting end converts electrical signals into optical signals, and after transmission through optical fibers, the receiving end then converts optical signals into electrical signals. An optical module is composed of optical components, functional circuits, optical interfaces, etc. Therefore, it is necessary to design a welding fixture for a flexible board integrated TOSA and ROSA of an optical module.

[0003] In the field of optical communication, TOSA (transmitter optical sub-assembly) and ROSA (receiver optical sub-assembly) are key optical-electrical conversion devices. They are usually connected to a circuit board through a flexible board to achieve the conversion between electrical signals and optical signals. However, during the welding process, how to ensure the precise alignment between TOSA (transmitter optical sub-assembly), ROSA (receiver optical sub-assembly) and the flexible board, avoid welding defects, and improve welding quality is a problem that needs to be solved currently. Content of the Utility Model

[0004] The purpose of the utility model is to provide a welding fixture for a flexible board integrated TOSA and ROSA of an optical module. During the welding process, how to ensure the precise alignment between TOSA (transmitter optical sub-assembly), ROSA (receiver optical sub-assembly) and the flexible board, avoid welding defects, and improve welding quality is a problem that needs to be solved currently.

[0005] To achieve the above object, a welding fixture for a flexible circuit board integrated TOSA and ROSA in an optical module is provided, including: a base, on the front end of the top of the base, six groups of PCB slots and ROSA slots are respectively opened, and the PCB slots and ROSA slots cooperate with each other. In the six groups of PCB slots and ROSA slots, a PCB and a ROSA are respectively placed, and the PCB and the ROSA are fixed by welding. On the back end of the top of the base, a rotating plate is hinged, and the rotating plate and the base are fixed by a set of pins. On the front end of the bottom of the rotating plate, a set of magnets are evenly arranged, and the magnets cooperate with the base. On the top of the rotating plate, six groups of TOSAs are placed. On the back end of the top of the rotating plate, six groups of covers are hinged, and the six groups of covers are fixed to the rotating plate by another set of pins, and the covers cooperate with the TOSAs. On the front end of the bottom of the six groups of covers, another set of magnets are arranged, and the magnets cooperate with the rotating plate. During the welding process, how to ensure the precise alignment between the TOSA (optical emission sub-module), ROSA (optical reception sub-component) and the flexible circuit board, avoid welding defects and improve the welding quality are the problems that need to be solved currently.

[0006] According to the welding fixture for a flexible circuit board integrated TOSA and ROSA in an optical module, six groups of fixture limit slots are opened on the top of the rotating plate, and the six groups of fixture limit slots cooperate with the six groups of covers and TOSAs, facilitating the placement and fixation operation of the TOSAs to improve the stability and accuracy of subsequent welding.

[0007] According to the welding fixture for a flexible circuit board integrated TOSA and ROSA in an optical module, through holes are provided at the back ends of the interiors of the six groups of covers and the back ends of the interiors of the six groups of fixture limit slots, and the through holes are penetrated and matched with another set of pins, facilitating the penetration and fixation of the covers and the other set of pins, and facilitating the subsequent rotation of the covers.

[0008] According to the welding fixture for a flexible circuit board integrated TOSA and ROSA in an optical module, fixing blocks are provided on both sides of the back end of the top of the base, and limiting through holes are provided inside the two groups of fixing blocks and at the bottom of the rotating plate, and the limiting through holes are mutually matched with a set of pins, facilitating the insertion of a set of pins to facilitate the subsequent rotation and limitation operation of the rotating plate.

[0009] According to the welding fixture for a flexible circuit board integrated TOSA and ROSA in an optical module, the base, the rotating plate and the covers are all made of aluminum alloy material, facilitating the subsequent adsorption and fixation operation of the magnets.

[0010] According to the welding fixture for a flexible circuit board integrated TOSA and ROSA in an optical module, the pins and the magnets are both made of standard parts to realize the assembly and use of conventional pins and magnets.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: It solves the problem of inconvenient operation for employees, provides a standard operation method for employees, realizes the consistency of the welding dimensions of the fixture, improves the product yield rate, reduces the probability and cost of rework, solves the difficulty of welding the TOSA with a built-in flexible board. The direction of the TOSA with a built-in flexible board is inconsistent with the welding direction of the PCB, resulting in very low efficiency. At the same time, it can weld the TOSA with a built-in flexible board and the ROSA with a built-in flexible board, avoiding repeated disassembly and assembly of the PCB and ROSA, improving the later production efficiency and reducing costs. In order to improve efficiency, it realizes that one fixture can weld six PCBs, greatly saving the time of repeated disassembly and assembly, improving efficiency and reducing costs.

[0012] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0014] Figure 1 is a three-dimensional exploded view of a welding fixture for a TOSA and a ROSA with built-in flexible boards of an optical module of the present utility model;

[0015] Figure 2 is a three-dimensional Figure 1 ;

[0016] Figure 3 is a top view of a welding fixture for a TOSA and a ROSA with built-in flexible boards of an optical module of the present utility model;

[0017] Figure 4 is a three-dimensional Figure 2 ;

[0018] Figure 5 is a three-dimensional Figure 3 ;

[0019] Figure 6 is a three-dimensional Figure 4 ;

[0020] Figure 7 is a three-dimensional Figure 5 ;

[0021] In the figure: 1. Base; 2. Pin; 3. Magnet; 4. Rotating plate; 5. Cover plate; 6. TOSA; 7. PCB; 8. ROSA; 9. PCB slot; 10. ROSA slot. Detailed implementation

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-7 , the embodiments of the present invention provide a technical solution: a welding jig for a flexible board TOSA and ROSA integrated in an optical module, including: a base 1, six groups of PCB slots 9 and ROSA slots 10 are respectively opened at one end of the front surface of the top of the base 1, and the PCB slots 9 and ROSA slots 10 cooperate with each other. A PCB 7 and a ROSA 8 are respectively placed inside the six groups of PCB slots 9 and ROSA slots 10, and the PCB 7 and the ROSA 8 are welded and fixed. A rotating plate 4 is hinged at one end of the back surface of the top of the base 1, and the rotating plate 4 and the base 1 are fixed by a group of pins 2. A group of magnets 3 are evenly arranged at one end of the front surface of the bottom of the rotating plate 4, and the magnets 3 cooperate with the base 1. Six groups of TOSA 6 are placed on the top of the rotating plate 4. Six groups of cover plates 5 are hinged at one end of the back surface of the top of the rotating plate 4, and the six groups of cover plates 5 are fixed to the rotating plate 4 by another group of pins 2, and the cover plates 5 cooperate with the TOSA 6. Another group of magnets 3 are provided at one end of the front surface of the bottom of the six groups of cover plates 5, and the magnets 3 cooperate with the rotating plate 4.

[0024] Six groups of fixture limiting slots are opened at the top of the rotating plate 4, and the six groups of fixture limiting slots cooperate with the six groups of cover plates 5 and TOSA 6.

[0025] Through holes are provided at one end of the back surface inside the six groups of cover plates 5 and at one end of the back surface inside the six groups of fixture limiting slots, and the through holes are penetrated and cooperated with another group of pins 2.

[0026] Fixed blocks are provided on both sides of one end of the back surface of the top of the base 1, and limiting through holes are provided inside the two groups of fixed blocks and at the bottom of the rotating plate 4, and the limiting through holes cooperate with a group of pins 2.

[0027] The base 1, the rotating plate 4 and the cover plate 5 are all made of aluminum alloy material.

[0028] The pins 2 and the magnets 3 are both made of standard parts.

[0029] Working principle: When in use, six PCBs 7 can be taken and placed inside the PCB slot 9 in sequence, and then six ROSAs 8 with built-in flexible boards can be placed inside the ROSA slot 10 in sequence. After placement, welding is performed with a soldering iron in sequence as Figure 3 ;

[0030] Then, the cover plate 5 is opened in sequence. The other set of pins 2 rotates 90 degrees on the surface of the rotating plate 4, and the fixture can be opened. Then, the TOSAs 6 with flexible boards are placed in the fixture limit slots opened at the top of the rotating plate 4 in sequence as Figure 4 , and finally, the cover plate 5 is rotated along the other set of pins 2 to perform the covering operation in sequence. Finally, the adsorption work is achieved through the cooperation of another set of magnets 3 designed on the surface of the cover plate 5 and the rotating plate 4, so as to facilitate the fixing and limiting of the covering of the cover plate 5 and prevent it from falling off later as Figure 5 ;

[0031] Then, the rotating plate 4 with the TOSA 6 is rotated 90 degrees along a set of pins 2 to be covered and fixed with the base 1 through a set of magnets 3, so as to achieve the covering and fixing operation of the rotating plate 4 and the pins 2 as Figure 6 , and finally, welding operations are performed with a soldering iron in sequence. After welding is completed, first rotate the cover plate 5 to take out the TOSA 6, and then rotate the rotating plate 4 to finally take out the welded PCB 7 as Figure 7 That's it;

[0032] Through the above structural design and operation steps, the welding fixture can be protected to be compatible with the simultaneous welding of the TOSA direction with a built-in flexible board and the ROSA with a built-in flexible board, and the directions are inconsistent. A unique adapter slot box fixing device is designed to ensure the stability of the TOSA and ROSA during the welding process. An accurate positioning device is adopted to improve the alignment accuracy between the flexible board and the pad, reduce the offset, and an efficient pressing device is adopted to ensure the close contact during welding and improve the welding quality.

[0033] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the technical field to which it belongs, various changes can be made without departing from the purpose of the present invention.

Claims

1. A welding fixture for a soft board TOSA and ROSA integrated in an optical module, comprising: Base (1), characterized in that six groups of PCB slots (9) and ROSA slots (10) are respectively opened at one end of the front of the top of the base (1), and the PCB slots (9) and ROSA slots (10) cooperate with each other. PCBs (7) and ROSAs (8) are respectively placed inside the six groups of PCB slots (9) and ROSA slots (10), and the PCBs (7) and ROSAs (8) are fixed by welding. A rotating plate (4) is hinged at one end of the back of the top of the base (1), and the rotating plate (4) and the base (1) are fixed by a set of pins (2). A set of magnets (3) are evenly arranged at one end of the front of the bottom of the rotating plate (4), and the magnets (3) cooperate with the base (1). Six groups of TOSAs (6) are placed on the top of the rotating plate (4). Six groups of cover plates (5) are hinged at one end of the back of the top of the rotating plate (4), and the six groups of cover plates (5) are fixed to the rotating plate (4) by another set of pins (2), and the cover plates (5) cooperate with the TOSAs (6). Another set of magnets (3) are arranged at one end of the front of the bottom of the six groups of cover plates (5), and the magnets (3) cooperate with the rotating plate (4).

2. The welding jig for the soft board TOSA and ROSA built in the optical module according to claim 1, characterized in that: Six groups of fixture limit slots are opened at the top of the rotating plate (4), and the six groups of fixture limit slots cooperate with the six groups of cover plates (5) and TOSAs (6).

3. The optical module with a built-in flexible circuit board (TOSA) and a flexible circuit board (ROSA) as claimed in claim 1, characterized in that: Openings are provided at one end of the back inside the six groups of cover plates (5) and at one end of the back inside the six groups of fixture limit slots, and the openings are penetrated and cooperated with another set of pins (2).

4. A soldering fixture for a flexible printed circuit board (FPC) integrated TOSA and ROSA in an optical module, characterized in that: Fixed blocks are provided on both sides of one end of the back of the top of the base (1), and limit through holes are provided inside the two fixed blocks and at the bottom of the rotating plate (4), and the limit through holes cooperate with a set of pins (2).

5. A soldering jig for a flexible printed circuit board (FPC) integrated TOSA and ROSA in an optical module, characterized in that: The base (1), the rotating plate (4) and the cover plate (5) are all made of aluminum alloy material.

6. A soldering fixture for a soft board TOSA and ROSA integrated in an optical module, as claimed in claim 1, wherein: The pins (2) and the magnets (3) are all made of standard parts.

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