CN-121978811-A - Bending-resistant multi-core optical cable for intelligent computation center and application

CN121978811ACN 121978811 ACN121978811 ACN 121978811ACN-121978811-A

Abstract

The invention discloses a bending-resistant multi-core optical cable for an intelligent computation center and application thereof, comprising a sheath layer and an optical fiber unit which is arranged in the sheath layer and consists of a plurality of optical fibers, the flexible reinforcing layer, the waterproof layer and the compression-resistant armor braid are sequentially arranged outside the optical fiber unit. The invention adopts the flexible reinforcing layer and the bending insensitive optical fiber, ensures that the optical performance of the optical cable is still stable and reliable under the complex wiring path and the extremely small bending radius of the intelligent computation center, greatly reduces signal degradation and faults caused by bending, carries out structural groove design on the surface of the sheath layer, can effectively improve the airflow circulation of a cable bundling area, helps to reduce the local temperature, improves the heat dissipation efficiency and the reliability of the whole infrastructure, is internally provided with the identification line, connects the physical optical cable with the digital twin system, meets the core requirements of the intelligent computation center on the automation of asset management, the precision of operation and maintenance and the maximization of efficiency, provides basic support for realizing the intelligent computation center operation and maintenance mode of unmanned or less inspection, and has high density and high reliability.

Inventors

LIN WEIFENG
TU JIANBIN
HAN YUFENG
ZHU KAI
DOU WENCHAO
LU SHAOCHENG
WU TIANTIAN
SHEN CHENXI

Assignees

江苏亨通光电股份有限公司
广东亨通光电科技有限公司

Dates

Publication Date: 20260505
Application Date: 20260310

Claims (10)

1. The utility model provides a smart computation center is with resistant bending type multicore optical cable, its characterized in that includes the restrictive coating and sets up the optical fiber unit that comprises many optic fibers in it, optical fiber unit sets gradually flexible enhancement layer, water-resisting layer and resistance to compression armor weaving layer outward.
2. The bend-resistant multi-core optical cable for a computing center of claim 1, wherein the optical fiber is a g.657.a2/B3 bend insensitive optical fiber having an add-on loss of less than 0.1dB under a bend condition having a radius of 5 mm.
3. The bend-resistant multi-core optical cable for a computing center of claim 1, wherein the flexible reinforcement layer is helically wrapped with a non-metallic flexible reinforcement material at a specific pitch, the wrapping pitch being configured to provide dynamic bending stress protection to the fiber unit while allowing small radius bending of the cable.
4. The bending-resistant multi-core optical cable for intelligent computation center according to claim 1, wherein the compression-resistant armor braid is woven by grooved metal strips or nonmetal wires, and the grooves are embedded with identification wires for optical cable management and performance monitoring.
5. The bending-resistant multi-core optical cable for a smart computing center of claim 4, wherein the identification line is a visible color line, a magnetic line, or an RFID electronic tag line.
6. The bending-resistant multi-core optical cable for a smart computation center according to claim 1, wherein the outer surface of the sheath layer is designed with annular grooves or spiral grooves which are distributed at equal intervals along the axial direction.
7. The bending-resistant multi-core optical cable for a computing center according to claim 6, wherein the depth of the annular groove or the spiral groove is 20-40% of the thickness of the jacket layer.
8. The bend-resistant multi-core optical cable for a smart center of claim 1, wherein the overall outer diameter of the bend-resistant multi-core optical cable for a smart center is no greater than 6mm and the minimum dynamic bend radius thereof is no greater than 8 times the outer diameter thereof.
9. Use of a bending-resistant multi-core optical cable for a smart computation center according to any of claims 1-8, for connection of the following scenarios inside the smart computation center: the method is used for uplink connection of the high-density server/GPU cluster and the top-level switch; the low-delay and high-bandwidth backboard interconnection between the AI computing unit cabinets is used for interconnection; The flexible wiring device is used for flexible wiring among modular machine room units.
10. The application of the bending-resistant multi-core optical cable for the intelligent computing center according to claim 9, wherein the physical information of the optical cable is automatically associated with an infrastructure management system of the intelligent computing center by using an identification line through an intelligent card reader or a visual identification system during deployment, so that the automatic entry, path tracking and rapid fault positioning of optical cable assets are realized.

Description

Bending-resistant multi-core optical cable for intelligent computation center and application Technical Field The invention belongs to the technical field of optical cables, and particularly relates to a bending-resistant multi-core optical cable for an intelligent computation center and application thereof. Background With the rapid development of artificial intelligence, big data and other technologies, an intelligent computing center (hereinafter referred to as an "intelligent computing center") serves as a core computing infrastructure, and internal data traffic of the intelligent computing center has explosive growth. Compared with the traditional data center, the intelligent computation center has the characteristics of extremely high density of computing units (such as GPU clusters), huge inter-cabinet interconnection bandwidth requirement, complex wiring path, frequent bending, severe heat dissipation challenges and the like. This places higher demands on the performance of the internal connection "vessel" -cable. Currently, common data center fiber optic cables expose the following prominent problems in smart center applications: 1) The bending performance is insufficient, when repeatedly bending and constructing in a narrow space and a high-density distribution frame in a cabinet, the conventional optical cable is easy to cause the breakage of optical fibers, the signal transmission is interrupted, and the engineering progress is influenced; 2) The traditional armored optical cable has large friction coefficient, is unfavorable for high-density wiring, and the smooth outer surface of the armored optical cable blocks air flow after being bundled, so that the formation of wire slot hot spots is aggravated; 3) The management is extensive, the physical identification which is in high-efficiency butt joint with the intelligent management platform of the intelligent computing center is lacking, the deployment, operation and maintenance and fault positioning efficiency is low, and the requirements of rapid iteration and operation and maintenance automation of the intelligent computing center are difficult to meet. Therefore, there is an urgent need for a new optical cable designed specifically for the harsh environment of an intelligent computing center, which has excellent flexibility, high reliability, excellent heat dissipation and intelligent management potential. Disclosure of Invention In order to solve the problems in the prior art, the invention aims to provide a bending-resistant multi-core optical cable for an intelligent computation center and application thereof, which can keep low loss under the condition of extreme bending, adapt to high-density wiring, assist in heat dissipation and support intelligent management. In order to achieve the above purpose and achieve the above technical effects, the invention adopts the following technical scheme: The utility model provides a smart computation center is with resistant multicore optical cable of buckling, includes the restrictive coating and sets up the optical fiber unit that comprises many optic fibers in it, flexible enhancement layer, water-blocking layer and resistance to compression armor weaving layer set gradually outside the optical fiber unit. Further, the optical fiber is a G.657.A2/B3 type bending insensitive optical fiber, and the additional loss is less than 0.1dB under the bending condition of a radius of 5mm. Further, the flexible reinforcement layer is helically wrapped with a non-metallic flexible reinforcement material at a specific pitch configured to provide dynamic bending stress protection to the fiber unit while allowing small radius bending of the fiber optic cable. Furthermore, the compression-resistant armor braid is formed by braiding slotted metal strips or nonmetal wires, and the slots are embedded with identification wires for optical cable management and performance monitoring. Further, the identification line is a visible color line, a magnetic line or an RFID electronic tag line. Further, the outer surface of the sheath layer is provided with annular grooves or spiral grooves which are distributed at equal intervals along the axial direction. Further, the depth of the annular groove or the spiral groove is 20-40% of the thickness of the sheath layer. Furthermore, the integral outer diameter of the bending-resistant multi-core optical cable for the intelligent computation center is not more than 6mm, and the minimum dynamic bending radius is not more than 8 times of the outer diameter. The invention also discloses an application of the bending-resistant multi-core optical cable for the intelligent computation center, which is used for connecting the following scenes in the intelligent computation center: the method is used for uplink connection of the high-density server/GPU cluster and the top-level switch; the low-delay and high-bandwidth backboard interconnection between the AI computing unit cabinets is used