Staggered Backplane Connector Layout for Signal and Thermal Optimization

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Solution Overview

Problem

The existing methods for connecting dual backplanes in servers and industrial computers face challenges such as excessive wiring area and insufficient ventilation due to the arrangement of connectors on both sides of the backplane, leading to increased costs and reduced feasibility.

Innovation Solution

A layout method for backplane connectors where the front and back connectors are staggered, with pins in odd-numbered columns of the front connector matching those in odd-numbered columns of the back connector, and pins in even-numbered columns matching those in even-numbered columns, reducing the need for signal wiring and increasing ventilation space by minimizing high-speed signal wiring length and overlapping connectors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If connectors are arranged on both sides of backplane to increase connectivity, then the number of connectors is increased, but the area for ventilation holes is reduced

Engineering Contradiction:
Improvenumber of connectorsVSAvoidarea for ventilation holes
Core Design Contradiction:
Quantity of substanceVSArea of stationary object

Solution Approach 1:

The patent utilizes the third dimension (depth/layer) by arranging connectors on both the front and back sides of the backplane. This spatial arrangement allows connectors to be distributed across different planes, increasing the total number of connectors while maintaining adequate ventilation area on each surface through the staggered column arrangement.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent employs asymmetric arrangement where the back connector is staggered one column relative to the front connector. This asymmetric positioning optimizes the distribution of connectors and ventilation holes, allowing maximum connectivity while preserving sufficient ventilation space.

Inventive Principle:
Principle #4Asymmetry

2Quantity of substance

If connectors are arranged on both sides of backplane to increase connectivity, then the number of connectors is increased, but the wiring area is increased

Engineering Contradiction:
Improvenumber of connectorsVSAvoidwiring area
Core Design Contradiction:
Quantity of substanceVSArea of stationary object

Solution Approach 1:

By distributing connectors across front and back surfaces (utilizing the third dimension), the patent reduces the need for extensive wiring on a single plane. The staggered column arrangement creates more direct connection paths, minimizing the wiring area required on each surface while maintaining high connectivity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Quantity of substance

If connectors are arranged on both sides of backplane to increase connectivity, then the number of connectors is increased, but the system cost is increased

Engineering Contradiction:
Improvenumber of connectorsVSAvoidsystem cost
Core Design Contradiction:
Quantity of substanceVSEase of manufacture

Solution Approach 1:

The patent reduces system cost by utilizing the third dimension for connector arrangement, which eliminates the need for additional bridge boards or cable assemblies. The staggered column design on front and back surfaces achieves high connectivity using only the backplane structure, reducing component count and assembly complexity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS11342698B2Layout method for backplane connector, backplane and electronic terminal
Publication Date: 2022.05.24 CELESTICA TECH CONSULTANCY SHANGHAI
  • US11342698B2 patent drawing
  • US11342698B2 patent drawing
  • US11342698B2 patent drawing

AI summary

The disclosure provides a layout method for backplane connector, a backplane, and an electronic terminal. The backplane includes: a circuit board; and a first connector unit. The first connector unit includes at least one group of first connector modules, each group of the first connector modules comprises a front connector and a back connector; pins in odd-numbered columns of the front connector have the same arrangement as pins in odd-numbered columns of the back connector, pins in even-numbered columns of the front connector have the same arrangement as pins in even-numbered columns of the back connector; the front connector is mounted on the front of the circuit board, the back connector is on the back of the circuit board, and the back connector is staggered one column of pins relative to the front of the front connector.