Electroplated Mounting Block for Shielded Backplane Connectors

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Solution Overview

Problem

Existing backplane connectors suffer from inadequate shielding, leading to crosstalk issues due to structural mutations at the interface between conductive terminals and circuit boards, which affects signal transmission.

Innovation Solution

A backplane connector design featuring a housing with a mounting block made of electroplated plastic, which includes openings for the mounting feet of the terminal modules, enhancing the shielding effect by reducing signal interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a mounting block is added to maintain positional relationship of terminal modules, then ease of mounting is improved, but shielding effect deteriorates due to structural mutation causing crosstalk

Engineering Contradiction:
Improveease of mountingVSAvoidcrosstalk
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The mounting block is made of electroplated plastic, which combines the insulating properties of plastic with the electromagnetic shielding properties of the electroplated metal layer. This composite material structure allows the mounting block to simultaneously provide mechanical support for easy mounting and electromagnetic shielding to reduce crosstalk between adjacent terminals.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The electroplating process changes the surface properties of the plastic mounting block by adding a conductive metal layer. This parameter change transforms the mounting block from a purely insulating component to one that also provides electromagnetic shielding, thereby reducing crosstalk while maintaining its mounting function.

Inventive Principle:
Principle #35Parameter changes

2Ease of manufacture

If traditional insulating material is used for mounting block, then ease of manufacture is improved, but shielding effect deteriorates

Engineering Contradiction:
Improveease of manufactureVSAvoidsignal interference
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The electroplated plastic mounting block combines plastic substrate with a metal coating layer, creating a composite material that maintains the ease of manufacturing advantages of plastic while adding the electromagnetic shielding properties of metal to reduce signal interference.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The electroplating process replaces the need for separate mechanical shielding structures by integrating the shielding function directly into the mounting block through a thin conductive coating, simplifying the overall structure while maintaining ease of manufacture.

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

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

The electroplated plastic mounting block improves the shielding effectiveness of the backplane connector, minimizing crosstalk and ensuring reliable signal transmission.

Implementation Method 1

the mounting block is made of electroplated plastic, and the mounting block comprises an opening through which the first mounting foot and the second mounting foot extend

Methodology Applied
Scientific EffectElectromagnetic shielding: Faraday Cage

Data Source

PatentUS11769968B2Backplane connector with improved mounting block
Publication Date: 2023.09.26 DONGGUAN LUXSHARE TECH CO LTD
  • US11769968B2 patent drawing
  • US11769968B2 patent drawing
  • US11769968B2 patent drawing

AI summary

A backplane connector includes a housing, a number of terminal modules assembled to the housing, and a mounting block. The housing includes a base, a first side wall and a second side wall. Each terminal module includes a first signal terminal and a second signal terminal. The first signal terminal has a first mounting foot, and the second signal terminal has a second mounting foot. The housing includes a receiving groove at a bottom end of the base. The mounting block is received in the receiving groove. The mounting block is made of electroplated plastic. The mounting block has an opening for the first mounting foot and the second mounting foot to extend through. As a result, the backplane connector has a better shielding effect.