CN214151153U

CN214151153U - AOC active optical cable structure

Info

Publication number: CN214151153U
Application number: CN202023152591.4U
Authority: CN
Inventors: 雷声; 李林科; 吴天书; 杨现文; 张健
Original assignee: Wuhan Linktel Technologies Co Ltd
Current assignee: Wuhan Linktel Technologies Co Ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-09-07
Anticipated expiration: 2030-12-24

Abstract

The utility model provides an AOC active optical cable structure, including optic fibre, optical cable sheath and optical module, the optic fibre part is cladding in the optical cable sheath, the optical cable sheath is cladding in the outer crosspiece, still be equipped with the metal crimping ring of crimping optical cable sheath in the outer crosspiece and partly stretch into the metal support ring as optical cable sheath inside lining in the optical cable sheath, metal crimping ring and metal support ring and middle optical cable sheath form a "sandwich" structure, metal crimping ring and metal support ring jointly fix the optical cable sheath, the outer crosspiece is equipped with the metal backstop that the part stretches into in the outer crosspiece in one end of metal crimping ring, metal crimping ring and metal backstop mutually support and closely fix the inside kaivo wire outside metal backstop, the one end joint that the metal backstop lies in the outer crosspiece is fixed in the optical module, the outer jacket portion extends into the optical module.

Description

AOC active optical cable structure

Technical Field

The utility model relates to an AOC active optical cable especially relates to an AOC active optical cable structure.

Background

The AOC (active Optical cables) active Optical cable provides Optical signal interconversion by an external energy source and Optical transceivers at two ends of the Optical cable, and realizes point-to-point signal transmission by the Optical cable. In the big data era, high-density and high-bandwidth applications are increasing, and in the application scene, a passive optical cable or a cable system based on a copper wire is difficult to meet the application requirements. In order to ensure the stability and flexible applicability of transmission, users urgently need a novel product as a main transmission medium of a high-performance computing and data center, and under the condition, an active optical cable product is produced.

The AOC optical module is a core element for high-performance calculation and data transmission in a current data center, and provides powerful guarantee for high throughput, high computing capability and stable communication quality of the data center. The AOC active optical cable is an optical link in the AOC optical module and used for connecting the two end modules for communication. Its length is changeable: the length of the optical cable is as short as 1 meter and can be as long as 300 meters, so the optical cable is often directly exposed outside the equipment in a machine room without excessive protection, and the physical and mechanical properties of the AOC optical cable are particularly important.

According to the past statistical data, the joint of the AOC optical cable and the optical module is prone to failure in the transportation and use processes. Common failure modes include that optical fibers are directly exposed outside due to the problems of loosening of optical cable sheaths, cracking of optical cable sheaths, loosening of Kevlar wires and the like, so that the optical fibers are broken; and the problem of poor long-term reliability performance of the optical cable caused by the performance degradation of the structural bonding glue used in the conventional AOC optical cable manufacturing process over time.

Based on the two common problems, the quality of the AOC optical cable is optimized and improved, and the competitiveness of the AOC optical module product of the data center is improved, which is a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide an AOC active optical cable structure, solved partial technical problem among the prior art at least.

The utility model discloses a realize like this:

Preferably, a plastic fastener is arranged in the optical module, and the metal stop is in clamping fit with the plastic fastener.

Preferably, the optical module comprises a module tube shell and a module upper cover used for covering the module tube shell, a clamping groove is formed in the module tube shell, and the plastic clamping piece is clamped and fixed in the clamping groove.

Preferably, one end of the outer sleeve connected with the metal stop is provided with a limiting section which can limit the metal stop.

Preferably, a limiting seat for supporting and limiting the optical fiber is further arranged in the optical module.

The utility model discloses following beneficial effect has:

1. in the utility model, the metal stop and the metal crimping ring are matched with each other by positive and negative tolerance, and the Kevlar wire is fixed. The metal stop is made of rigid materials and is not easy to deform, the metal crimping ring can ensure that the Kevlar wire inside the metal stop is tightly fixed outside the metal stop after crimping through reasonably designing the wall thickness of the metal ring, and meanwhile, the metal stop has good strength. The Kevlar wire is fixed in the crimping mode, so that the problem that the inner optical fiber is polluted by glue due to the flowability of the glue can be avoided by using the glue for bonding and fixing.

2. In the utility model discloses in, the inside lining is done as outer crimping, inside metal support ring to the fixed of optical cable skin, adopts metal crimping ring, and the optical cable skin utilizes metallic structure's intensity at the sandwich structure in the middle, fastens the optical cable skin between two metalworks. Through the wall thickness of rational design metal support ring and metal crimping ring, can effectively guarantee metal support ring's intensity, can not take place to warp and lead to inside optic fibre to be damaged. Similarly, by adopting the fixing mode of the mechanical structure, a plurality of hidden dangers brought by the traditional glue fixing scheme can be saved, and meanwhile, the manufacturing process is simplified, and the cost is saved.

3. The Kevlar line that is used for the load in the AOC optical cable is fixed on the metal only by the metal crimping ring, and the optical cable sheath is fixed on the metal crimping ring, the utility model discloses on having transferred the stress point of all load structures in the AOC optical cable to the module tube, and also have metallic structure spare between module tube and the switch fixed. Finally, through the design, the whole migration of the stress point of the optical cable is realized, the anti-pulling performance of the AOC optical cable is improved, and the reliability of the product is better 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 schematic view of an AOC active optical cable provided by an embodiment of the present invention;

fig. 2 is a cross-sectional view of an AOC active optical cable provided by an embodiment of the present invention;

fig. 3 is a schematic view of fixing an AOC active optical cable module end according to an embodiment of the present invention;

fig. 4 is an overall schematic diagram of an AOC active optical cable module end provided by 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. 1-4, an embodiment of the present invention provides an AOC active optical cable structure, including an optical fiber 1, an optical cable sheath 2 and an optical module, where the optical fiber 1 is partially wrapped in the optical cable sheath 2, the optical cable sheath 2 is wrapped in an outer cross sleeve 3, the outer cross sleeve 3 is further provided with a metal crimping ring 4 for crimping the optical cable sheath 2 and a metal support ring 5 partially extending into the optical cable sheath 2 as an inner lining of the optical cable sheath, the metal crimping ring 4, the metal support ring 5 and the optical cable sheath 2 in the middle form a "sandwich" structure, the metal crimping ring 4 and the metal support ring 5 jointly fix the optical cable sheath 2, one end of the outer cross sleeve 3 provided with the metal crimping ring 4 is provided with a metal stop 6 partially extending into the outer cross sleeve, the metal crimping ring 4 and the metal stop 6 are mutually matched to tightly fix an internal kevlar wire 7 outside the metal stop 6, one end of the metal stop 6, which is positioned outside the outer intersection sleeve 3, is clamped and fixed in the optical module, and the part of the outer intersection sleeve 3 extends into the optical module. One end of the optical fiber, which is far away from the outer cross sleeve, is connected with an MT inserting core 13.

The optical module is internally provided with a plastic clamping piece 8, and the metal stop 6 and the ear (namely the limiting section 11) of the outer cross sleeve 3 are clamped and matched with the plastic clamping piece 8 together. The optical module comprises a module tube shell 9 and a module upper cover 10 used for covering the module tube shell, a clamping groove is formed in the module tube shell 9, and the plastic clamping piece 8 is clamped and fixed in the clamping groove. And a limiting seat 12 for supporting and limiting the optical fiber is also arranged in the optical module.

And a limiting section 11 which has a limiting effect on the metal stop 6 is arranged at one end of the outer cross sleeve 3 connected with the metal stop 6.

The utility model provides an AOC (active Optical cables) active Optical cable of new construction. The utility model provides a product reliability problem that traditional AOC optical cable relies on the not enough problem of mechanical strength that glue fixed connection head leads to and some defects on the design of AOC optical cable connector inner structure brought. The utility model discloses can fine promotion product quality, can also simplify the production technology of product simultaneously, shorten product production cycle, save manufacturing cost.

As shown in fig. 1, which is a structural schematic diagram of a novel AOC optical cable, a metal stop 6 and a metal crimp ring 4 are in positive and negative tolerance fit to fix a kevlar wire 7. The metal stop 6 is made of rigid materials and is not easy to deform, the metal crimping ring 4 can ensure that the internal Kevlar wire 7 is tightly fixed outside the metal stop 6 after crimping through reasonably designing the thickness of the metal ring wall, and meanwhile, the metal stop has good strength. The Kevlar wire 7 is fixed in the crimping mode, so that the problem that the inner optical fiber is polluted by glue due to the flowability of the glue can be avoided by using the glue for bonding and fixing.

As shown in fig. 2, the optical cable sheath 2 is fixed by using the metal crimping ring 4 as an outer crimping and the inner metal support ring 5 as an inner lining, and the optical cable sheath 2 is fastened between two metal parts by using the strength of the metal structural member in a sandwich structure with the optical cable sheath 2 in the middle. Through the wall thickness of reasonable design metal support ring 5 and metal crimping ring 4, can effectively guarantee the intensity of metal support ring 5, can not take place to warp and lead to inside optic fibre to be damaged. Similarly, by adopting the fixing mode of the mechanical structure, a plurality of hidden dangers brought by the traditional glue fixing scheme can be saved, and meanwhile, the manufacturing process is simplified, and the cost is saved.

As shown in fig. 3, it is the fixing scheme of the AOC cable with the new structure in the module. Design into the "ear" structure of size with the head end of outer cover 3 and metalwork to design assorted plastic fastener 8, with the outer cover 3 of handing over of AOC optical cable and metal stop 6 monolithic stationary in plastic fastener 8, adopt the structure fixed between plastic fastener 8 and the module, as shown in figure 4, after the module is accomplished the equipment, plastic fastener 8 is whole by inseparable card among metal module tube 9.

The Kevlar wire 7 used for bearing in the AOC optical cable is fixed on the metal stop 6 by the metal compression ring 4, the cable sheath 2 is fixed on the metal compression ring 4, by the scheme shown in figure 3, all bearing structure stress points in the AOC optical cable are transferred to the module tube shell 9, and the metal structural member is also fixed between the module tube shell 9 and the switch. Finally, through the design, the whole migration of the stress point of the optical cable is realized, the anti-pulling performance of the AOC optical cable is improved, and the reliability of the product is better guaranteed.

The utility model discloses can follow the design better avoid that several types of AOC optical cable are common inefficacy in the use scene, promote the whole quality performance of product.

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 AOC active optical cable structure, its characterized in that: comprises an optical fiber, an optical cable sheath and an optical module, wherein the optical fiber is partially coated in the optical cable sheath, the optical cable sheath is coated in an outer cross sleeve, the outer cross sleeve is also internally provided with a metal crimping ring for crimping the optical cable sheath and a metal support ring partially extending into the optical cable sheath to be used as an inner lining of the optical cable sheath, the metal pressure joint ring, the metal support ring and the optical cable sheath in the middle form a sandwich structure, the metal compression joint ring and the metal support ring jointly fix the optical cable sheath, one end of the outer cross sleeve, which is provided with the metal stop, the metal stop partially extends into the outer cross sleeve, the metal crimping ring and the metal stop are mutually matched to tightly fix the Kevlar wire inside the metal stop outside the metal stop, and one end of the metal stop positioned outside the external traffic sheath is clamped and fixed in the optical module, and the part of the external traffic sheath extends into the optical module.

2. The AOC active optical cable structure of claim 1, wherein: and a plastic fastener is arranged in the optical module, and the metal stop is in clamping fit with the plastic fastener.

3. The AOC active optical cable structure of claim 2, wherein: the optical module comprises a module tube shell and a module upper cover used for covering the module tube shell, a clamping groove is formed in the module tube shell, and the plastic fastener is clamped and fixed in the clamping groove.

4. The AOC active optical cable structure of claim 1, wherein: and a limiting section which has a limiting effect on the metal stop is arranged at one end of the outer sleeve connected with the metal stop.

5. The AOC active optical cable structure of claim 1, wherein: and a limiting seat which plays a role in supporting and limiting the optical fiber is also arranged in the optical module.