US-20260128796-A1 - BOSA DEVICE ASSEMBLING APPARATUS AND MOUNTING METHOD THEREFFOR

US20260128796A1US 20260128796 A1US20260128796 A1US 20260128796A1US-20260128796-A1

Abstract

A BOSA device assembling apparatus and a mounting method thereof. The assembling apparatus comprises: a BOSA device ( 1 ) including a base and a middle seat ( 2 ) including a bottom plate ( 23 ), a first limiting arm ( 21 ) provided with a first snap-fit hole ( 211 ), and a second limiting arm ( 22 ) provided with a second snap-fit hole ( 221 ), the base comprising a first side surface ( 11 ) provided with a first boss ( 13 ) and a second side surface ( 12 ) provided with a second boss ( 14 ), which are oppositely set. The first limiting arm ( 21 ) and the second limiting arm ( 22 ) being both set on the bottom plate ( 23 ) and oppositely set, the bottom plate ( 23 ), the first limiting arm ( 21 ) and the second limiting arm ( 22 ) forming a mounting space. The bottom plate ( 23 ) is further provided with at least one protrusion (231) which is set on a side facing away from the first limiting arm ( 21 ) and is used to be fixed in a positioning hole ( 31 ) of a PCB board. The base is set in the mounting space, and the first boss ( 13 ) is snap-fitted in the first snap-fit hole ( 211 ), and the second boss ( 14 ) is snap-fitted in the second snap-fit hole ( 221 ), so as to fix the BOSA device ( 1 ) on the middle seat ( 2 ).

Inventors

Yaoxin Luo
Xiaoli ZHANG
Xuecheng SHEN
Hanjie HUANG
Changan LI
Benqing Quan

Assignees

ACCELINK TECHNOLOGIES CO., LTD.

Dates

Publication Date: 20260507
Application Date: 20221124
Priority Date: 20220926

Claims (12)

1 . A BOSA device assembling apparatus, characterized in comprising: a BOSA device and a middle seat wherein the BOSA device comprises a base, the base comprising a first side surface and a second side surface which are oppositely set, a first boss being set on the first side surface, and a second boss being set on the second side surface; the middle seat comprises a bottom plate, a first limiting arm, and a second limiting arm, the first limiting arm and the second limiting arm being both set on the bottom plate and the first limiting arm and the second limiting arm being oppositely set, the bottom plate the first limiting arm and the second limiting arm forming a mounting space, wherein a first snap-fit hole is set on the first limiting arm, and a second snap-fit hole is set on the second limiting arm; the bottom plate is further provided with at least one protruding pin which is set on a side facing away from the first limiting arm, and is used to be fixed in the positioning hole; and the base is set in the mounting space, and the first boss is snap-fitted to the first snap-fit hole, the second boss is snap-fitted to the second snap-fit hole, so as to fix the BOSA device on the middle seat.
2 . The BOSA device assembling apparatus of claim 1 , characterized in that two of the first bosses are set on the first side surface a first groove is set on the first side surface, the first boss being set within the first groove, the two first bosses being respectively set at two ends of the first groove a second groove is set on the first side surface, the second groove being set within the second groove, and being set in a middle area of the second groove; a length of the second boss is greater than a length of the first boss.
3 . The BOSA device assembling apparatus of claim 2 , characterized in that the middle seat comprises two first limiting arms and one second limiting arm, the two first limiting arms being set on the same side and are set at two ends of the bottom plate; and the second limiting arm is set in a middle area of the bottom plate
4 . The BOSA device assembling apparatus of claim 1 , characterized in that a first notch and a second notch are set on the bottom plate wherein the first notch is set adjacent to the first limiting arm, and a length of the first notch is greater than a length of the first limiting arm; and the second notch is set adjacent to the second limiting arm, and a length of the second notch is greater than a length of the second limiting arm.
5 . The BOSA device assembling apparatus of claim 4 , characterized in that the assembling apparatus is further set with a disassembling and returning member in a matching mode, wherein the disassembling and returning member comprises an operating arm and a disassembling arm, and a disassembling groove and a movable portion are set on the disassembling arm; and the disassembling groove is used for coupling with the first limiting arm, and the movable portion is inserted into the first notch; when the operating arm receives an external force, the disassembling groove abuts against a side surface of the first limiting arm and the movable portion moves in the first notch, so that the first boss is separated from the corresponding first snap-fit hole.
6 . The BOSA device assembling apparatus of claim 5 , characterized in that a protrusion is set between the disassembling groove and the movable portion; wherein a first cambered surface a second cambered surface and a third cambered surface are set on the disassembling arm, wherein the first cambered surface is connected to the second cambered surface to form the disassembling groove and the second cambered surface and the third cambered surface are connected with each other to form the protrusion; and the second cambered surface is inclined to a plane where the movable portion is located, and an angle between the first cambered surface and the second cambered surface is 80°˜120°.
7 . The BOSA device assembling apparatus of claim 1 , characterized in that the first boss and the second boss each have an abutting surface and a guide surface, the abutting surface being parallel to the upper surface of the base, the guide surface being inclined to the abutting surface, and in a direction close to the middle seat, a distance between the guide surface and the base being gradually reduced.
8 . The BOSA device assembling apparatus of claim 1 , characterized in that a first inclined surface is set on the first limiting arm, is located on an inner side of the first limiting arm and is set above the first snap-fit hole; and a second inclined surface is set on the second limiting arm, is located on an inner side of the second limiting arm and is set above the second snap-fit hole.
9 . A mounting method of a BOSA device assembling apparatus, characterized in that the mounting method is applied to the BOSA device assembling apparatus of claim 1 , and the mounting method comprises: fixing the middle seat on the PCB board; snap-fitting the first boss on the BOSA device in the first snap-fit hole, and snap-fitting the second boss on the BOSA device in the second snap-fit hole, so as to fix the BOSA device on the middle seat.
10 . The mounting method of claim 9 , characterized in that the fixing the middle seat on the PCB board comprises: fixing the middle seat on the PCB board after the protruding pin passes through the positioning hole; and the snap-fitting the first boss on the BOSA device in the first snap-fit hole and snap-fitting the second boss on the BOSA device in the second snap-fit hole, so as to fix the BOSA device on the middle seat, comprises: snap-fitting the first boss on the BOSA device in the first snap-fit hole to make the first limiting arm partially enter the first groove, and snap-fitting the second boss on the BOSA device in the second snap-fit hole to make the second groove be filled by the second limiting arm, so as to fix the BOSA device on the middle seat.
11 . The mounting method of claim 9 , characterized in that the BOSA device has been welded with the FPC board before the middle seat is fixed, or, the BOSA device completes welding with the FPC board after the middle seat is fixed.
12 . The mounting method of claim 11 , characterized in that the BOSA device being welded with the FPC board comprises: respectively welding two mounting portions of the FPC board with a transmitting optical sub-assembly and a receiving optical sub-assembly of the BOSA device; and welding a positioning welding pad on the FPC board with a positioning welding pad on the PCB board, and welding a signal welding pad on the FPC board with a corresponding signal welding pad on the PCB board

Description

TECHNICAL FIELD OF THE DISCLOSURE The present disclosure relates to the technical field of optical communication, in particular to a BOSA device assembling apparatus and a mounting method thereof. BACKGROUND The transmitting optical sub-assembly and the receiving optical sub-assembly of the early optical module are independent assemblies, one being a transmitting optical sub-assembly (abbreviated as TOSA), and the other being a receiving optical sub-assembly (abbreviated as ROSA). With the development of optical devices, TOSA and ROSA are combined into one device and become a bi-directional optical sub-assembly (abbreviated as BOSA). BOSA serves as an important component of a single-fiber optical module and is widely applied to optical communication equipment. In an existing BOSA device installation scheme, one connection mode is to realize connection between BOSA and a pinted crcuit board (abbreviated as PCB) by adopting an intermediate connecting piece. The connecting piece is generally made of powder metallurgy, and its cost is comparatively high. The connecting piece needs to be connected with the BOSA square pipe body through viscose, and after the viscose is glued, the connecting piece also needs to enter the oven for baking and curing. The whole viscose process and the curing process is relatively complicated, requiring a long time, and the problem of alignment deflection is easy to occur in the viscose process. In view of the above, overcoming the defect existing in the present prior art is an urgent problem to be solved in this technical field. SUMMARY Aiming at the above defects or improvement requirements of the prior art, the present disclosure provides a BOSA device assembling apparatus, with the aim of improving the technical problem of fixing the BOSA on the PCB, and overcoming the problem in the prior art in using the viscose connection mode, i.e. the whole viscose and curing process is relatively complicated, requiring a long time, and the alignment deflection is easy to occur in the viscose process. In order to realize the above-mentioned purpose, a first aspect of the present disclosure provides a BOSA device assembling apparatus, which comprises a BOSA device and a middle seat, wherein the base comprises a first side surface and a second side surface which are oppositely set, a first boss is set on the first side surface, and a second boss is set on the second side surface;wherein the middle seat comprises a bottom plate, a first limiting arm, and a second limiting arm, the first limiting arm and the second limiting arm are both set on the bottom plate and are oppositely set, the bottom plate, the first limiting arm, and the second limiting arm form a mounting space, wherein a first snap-fit hole is set on the first limiting arm, and a second snap-fit hole is set on the second limiting arm;the bottom plate is futher provided with at least one protruding pin which is set on a side facing away from the first limiting arm; the PCB board is provided with at least one positioning hole, in which the protruding pin is used to be fixed, so as to fix the middle seat on the PCB board; andthe base is set in the mounting space, the first boss is snap-fitted to the first snap-fit hole, and the second boss is snap-fitted to the second snap-fit hole, so as to fix the BOSA device on the middle seat. Further, the first side surface is provided with the two first bosses and a first groove, and the two first bosses are provided in the first bosses and are respectively set at two ends of the first groove; the second side surface is provided with a second groove, and the second boss is set within the second groove and is set in a middle area of the second groove; a length of the second boss is greater than a length of the first boss. Further, the middle seat comprises two first limiting arms and one second limiting arm, the two first limiting arms being set on the same side and being set at two ends of the bottom plate, and the second limiting arm being set in a middle area of the bottom plate. Further, a first notch and a second notch are set on the bottom plate, wherein the first notch is set adjacent to the first limiting arm, and a length of the first notch is greater than a length of the first limiting arm; and the second notch is set adjacent to the second limiting arm, and a length of the second notch is greater than a length of the second limiting arm. Further, the assembling apparatus is further set with a disassembling and returning member in a matching mode, which comprises an operating arm and a disassembling arm, and the disassembling arm is provided with a disassembling groove used to couple with the first limiting arm and a movable portion inserted into the first notch; when the operating arm receives an external force, the disassembling groove abuts against a side surface of the first limiting arm, and the movable portion moves in the first notch, so that the first boss is separated from the