Optical Fiber Cable Routing for Server Heat Dissipation

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

The increasing number of electrical cables in servers for high-speed data transmission interferes with heat dissipation and becomes tangled, making installation difficult due to limited internal space.

Innovation Solution

An electronic assembly and optical communication component using optical-fiber cables with fixed light-emitting and photodetector components on communication cards, allowing for high-speed data transmission without the need for numerous electrical cables, ensuring easy installation and minimal space usage, thus reducing interference with air flow and heat dissipation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If electrical cables are used for high-speed data transmission, then data transmission capability is improved, but heat dissipation is adversely affected due to cable clutter interfering with cold air flow

Engineering Contradiction:
Improvedata transmission speedVSAvoidheat dissipation efficiency
Core Design Contradiction:
SpeedVSTemperature

Solution Approach 1:

The patent replaces electrical cables (mechanical/electrical system) with optical fiber cables (optical system) for data transmission. This substitution eliminates the heat-generating electrical cables while maintaining high-speed data transmission capability, directly resolving the contradiction between transmission speed and heat dissipation efficiency

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the transmission medium from electrical conductors to optical fibers, fundamentally altering the physical parameter of the transmission system. This parameter change enables high-speed data transmission without the thermal issues associated with electrical cables, simultaneously achieving both fast transmission and effective heat dissipation

Inventive Principle:
Principle #35Parameter changes

2Speed

If multiple electrical cables are installed for high-speed data transmission, then data transmission capability is improved, but installation difficulty increases due to cable tangling and limited space

Engineering Contradiction:
Improvedata transmission speedVSAvoidinstallation ease
Core Design Contradiction:
SpeedVSEase of operation

Solution Approach 1:

The patent substitutes electrical cables with optical fiber cables, which are thinner, more flexible, and less prone to tangling. This substitution dramatically simplifies the installation process while maintaining high-speed data transmission capability, resolving the contradiction between transmission speed and installation ease

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The optical fiber cable employs a flexible structure with thin protective layers, allowing it to be easily routed and installed in limited spaces without tangling. This flexible design enables straightforward installation while preserving high-speed data transmission capabilities

Inventive Principle:
Principle #30Flexible shells and thin films

3Temperature

If optical-fiber cable is used instead of electrical cables, then heat dissipation is improved by reducing cable clutter, but installation complexity increases due to precise positioning requirements

Engineering Contradiction:
Improveheat dissipation efficiencyVSAvoidinstallation complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The patent incorporates a positioning structure that pre-aligns the optical fiber cable with the light-emitting and light-receiving components before final installation. This preliminary positioning action eliminates the need for complex post-installation alignment, reducing installation complexity while maintaining effective heat dissipation benefits

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The positioning structure acts as an intermediary mechanism that facilitates the connection between the optical fiber cable and the communication components. This intermediary structure simplifies the installation process by providing automatic alignment, thereby reducing installation complexity while preserving the heat dissipation advantages of using optical fibers

Inventive Principle:
Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables efficient high-speed data transmission with reduced cable clutter, facilitating easy installation and maintaining effective heat dissipation within servers.

Implementation Method 1

a first light-emitting component fixed on and electrically connected to the first communication card

Methodology Applied
Scientific EffectLight emission: Light Emitting Diode

Implementation Method 2

Two opposite ends of the optical-fiber cable are respectively fixed to the first communication card and the second communication card so as to respectively be optically coupled to the first light-emitting component and the first photodetector

Methodology Applied
Scientific EffectOptical coupling: Optical Fibre

Implementation Method 3

a first photodetector fixed on and electrically connected to the second communication card

Methodology Applied
Scientific EffectPhotoelectric conversion: Photoelectric Effect

Data Source

PatentUS11536919B2Electronic assembly and optical communication component
Publication Date: 2022.12.27 INVENTEC PUDONG TECH CORPOARTION
  • US11536919B2 patent drawing
  • US11536919B2 patent drawing
  • US11536919B2 patent drawing

AI summary

An electronic assembly including first circuit board, second circuit board, and optical communication component. First circuit board includes first board and first connector. First connector is fixed on first board. Second circuit board includes second board and second connector. Second connector is fixed on second board. Optical communication component includes first communication card, first light-emitting component, second communication card, first photodetector and optical-fiber cable. First communication card is plugged into first connector. First light-emitting component is fixed on and electrically connected to first communication card. Second communication card is plugged into second connector. First photodetector is fixed on and electrically connected to second communication card. Two opposite ends of optical-fiber cable are respectively fixed to first communication card and second communication card to respectively be optically coupled to first light-emitting component and first photodetector.