CN211123380U

CN211123380U - Optical module packaging structure

Info

Publication number: CN211123380U
Application number: CN201922079632.2U
Authority: CN
Inventors: 李波
Original assignee: Wuhan Inphilight Technology Co Ltd
Current assignee: Wuhan Inphilight Technology Co Ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-07-28
Anticipated expiration: 2029-11-27

Abstract

The utility model provides an optical module packaging structure, including the inside pipe of putting optical element, the opening has been seted up on the pipe, optical module packaging structure still includes the shutoff open-ended apron, the apron is the step shaft structure, follows the inside direction of opening to pipe, the bore of apron diminishes gradually, the inner wall of pipe include with apron complex ladder face, the apron with the coating has glue between the pipe inner wall. The utility model provides an optical module packaging structure, greatly increased glue with the width of tube contact, the not tight problem greatly reduced of emergence probability and the local seal of the sealed defect of glue to the leakproofness of gluing the product has been promoted. The utility model provides an optical module packaging structure, because the structural design of stairstepping is adopted to the apron, when the assembly apron, the ladder section of apron can play the effect of a direction, aligns the apron with the inside groove of tube very easily to the sealed effect of glue has been guaranteed.

Description

Optical module packaging structure

Technical Field

The utility model relates to an optical module technical field in the optical communication is used especially relates to an optical module packaging structure.

Background

With the rapid development of 5G communication and the increasing demand of data centers, the market has greater and greater demands on 25G, 100G and 400G optical modules, the cost control requirements on the optical modules are higher and higher, and the market competition is more and more intense. Lower cost solutions will dominate in the intense competition on the basis of meeting performance and reliability requirements.

The traditional optical module applied to an access network and a transmission network adopts air-tight packaging and can be applied to a complex external environment, the working environment of the optical module applied to a data center is relatively good, and the optical module is sealed by glue or only used for simple dust prevention. Hermetic packages mainly use TO packages or parallel sealing processes, while non-hermetic packages mainly use glue seals. Because the airtight packaging process is complex, the cost is very high, if the sealing performance of the glue can be improved, the product sealed by the glue can be applied to the severe application environments of the access network and the transmission network by improving the sealing performance of the glue, the cost of the optical module can be greatly reduced, and the competitiveness of the product is improved.

A common glue sealing structure is formed by connecting a pipe shell with a concave table and a plane cover plate together through glue to form sealing, the contact width of the glue and the pipe shell is narrow, the problem of local sealing tightness caused by sealing defects is easily caused, and meanwhile, due to the limitation of space, the contact width of the glue and the pipe shell cannot be designed to be wide.

Because the traditional sealing mode is not tight in sealing and is easy to cause sealing defects and air leakage, the optical module manufactured by the traditional sealing scheme can only be applied to a data center, has great reliability when being applied to complex application environments such as an access network, a transmission network and the like, cannot bear the environment with high moisture outside, and is greatly limited in application.

In addition, in order to ensure the sealing performance of the traditional cover plate design, the gap between the cover plate and the inner groove on the tube shell is usually designed to be as small as possible, and is usually designed to be smaller than 100um, the cover plate is difficult to align to the inner groove on the tube shell at one time when the cover plate is assembled, and once the glue is not aligned, the glue is unevenly distributed, so that the sealing is influenced.

Disclosure of Invention

An object of the utility model is to overcome prior art's defect, provide an optical module packaging structure, can improve the sealing performance who glues the product greatly.

The utility model discloses a realize like this:

the utility model provides an optical module packaging structure, including the inside pipe of putting optical element, the opening has been seted up on the pipe, optical module packaging structure still includes the shutoff open-ended apron, the apron is the step shaft structure, follows the inside direction of opening to pipe, the bore of apron diminishes gradually, the inner wall of pipe include with apron complex ladder face, the apron with the coating has glue between the pipe inner wall.

Preferably, the pipe shell is provided with an exhaust hole.

Preferably, one end of the exhaust hole close to the inner part of the tube shell is filled with UV glue.

Preferably, one end of the exhaust hole close to the outer side of the pipe shell is filled with sealing glue.

Preferably, the cover portion is located outside the pipe case.

Preferably, the gap between the cover plate and the inner wall of the pipe shell is smaller than 100 um.

Preferably, the cover plate is provided with two sections with different calibers.

The utility model discloses following beneficial effect has:

1. the utility model provides an optical module packaging structure, greatly increased glue with the width of tube contact, the not tight problem greatly reduced of emergence probability and the local seal of the sealed defect of glue to the leakproofness of gluing the product has been promoted.

2. The utility model provides an optical module packaging structure, because the structural design of stairstepping is adopted to the apron, when the assembly apron, the ladder section of apron can play the effect of a direction, aligns the apron with the inside groove of tube very easily to the sealed effect of glue has been guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a top view of an optical module package structure provided in an embodiment of the present invention;

fig. 2 is a side view of an optical module package structure provided in an embodiment of the present invention;

fig. 3 is a cross-sectional view taken along line a-a of fig. 1 in accordance with an embodiment of the present invention;

fig. 4 is a bottom view of a cover plate according to an embodiment of the present invention;

fig. 5 is a side view of a cover plate according to an embodiment of the present invention;

fig. 6 is a top view of a tube housing provided by an embodiment of the present invention;

fig. 7 is a cross-sectional view B-B in fig. 6 according to an embodiment of the present invention.

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.

As shown in fig. 1-7, the embodiment of the utility model provides an optical module packaging structure, including inside tube 1 who has put optical element, the opening has been seted up on tube 1, optical module packaging structure still includes the shutoff open-ended apron 2, apron 2 is the ladder shaft structure, from the opening is to the inside direction of tube, the bore of apron 2 diminishes gradually, the inner wall of tube 1 include with apron complex ladder face, apron 2 with the coating has glue between 1 inner wall of tube. The utility model provides an optical module packaging structure, greatly increased glue with the width of tube 1 contact, the not tight problem greatly reduced of emergence probability and the local seal of the sealed defect of glue to the leakproofness of gluing the product has been promoted. In addition, because the cover plate 2 adopts the step-shaped structural design, when the cover plate 2 is assembled, the step part of the cover plate can play a role in guiding, and the cover plate 2 is easily aligned with the inner groove of the tube shell 1, thereby ensuring the sealing effect of the glue.

The traditional glue sealing mode product can only be applied in a data center scene and can not be applied in an access network and a transmission network scene due to the problems of sealing defects and partial sealing tightness. The utility model provides an optical module packaging structure has improved the leakproofness of the sealed product of glue, makes the sealed product of glue except using in data center's scene, and the application in the scene of access network, conveying net has also become possible.

The utility model discloses in, still be equipped with the exhaust hole on the tube 1, the one end packing that the exhaust hole is close to in the tube 1 has UV glue, the one end packing that the exhaust hole is close to the tube 1 outside has sealed glue.

In this embodiment, the cover plate 2 is partially located outside the pipe shell, and the cover plate 2 is two sections with different calibers.

At present, most of optical modules applied in the scenes of access networks and transmission networks adopt air-tight packaged optical modules, and the optical modules have complex processes and high cost. Adopt the utility model provides an optical module packaging structure can reduce the cost of optical module about 30%. The utility model discloses owing to adopted the structural design of stairstepping, it is easier that apron 2 becomes with the assembly of tube 1, and the problem of apron with the shell dislocation can not appear yet in the assembled, has guaranteed the stability that sealed glue covered, has further ensured the sealed of device.

The utility model discloses specific embodiment as follows: 1. a circle of sealing glue is supplemented on the inner side of the tube shell; 2. a circle of sealing glue is dotted on the inner side of the stepped boss of the cover plate; 3. buckling the cover plate on the pipe shell and lightly pressing the cover plate to enable the cover plate to be tightly attached to the pipe shell and glue to fill a gap between the cover plate and the pipe shell; 4. dispensing a circle of glue around the cover plate; 5. baking the product in an oven at 120 ℃ for 2 hours; 6. taking out the product from the oven, and filling the UV glue in the middle of the exhaust hole of the tube shell to fill the whole exhaust hole with the UV glue, and then carrying out UV curing for 30 s; covering a layer of sealing glue above the UV glue; 7. the product was baked in a 120 degree oven for 2 hours.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An optical module package structure, comprising: including the inside pipe shell that has put optical element, the opening has been seted up on the pipe shell, optical module packaging structure still includes the shutoff open-ended apron, the apron is the step axis structure, follows the opening is to the inside direction of pipe shell, the bore of apron diminishes gradually, the inner wall of pipe shell include with apron complex ladder face, the apron with the coating has glue between the pipe inner wall.

2. The optical module package of claim 1, wherein: the pipe shell is provided with an exhaust hole.

3. The optical module package of claim 2, wherein: and UV glue is filled at one end of the exhaust hole close to the inside of the tube shell.

4. The optical module package of claim 3, wherein: and one end of the exhaust hole close to the outer side of the pipe shell is filled with sealing glue.

5. The optical module package of claim 1, wherein: the cover plate part is located outside the pipe shell.

6. The optical module package of claim 1, wherein: the clearance between the cover plate and the inner wall of the pipe shell is less than 100 um.

7. The optical module package of claim 1, wherein: the cover plate is two sections with different calibers.