Coaxial Connector Shielding via Arm-Shaped Return Path

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional coaxial electrical connectors fail to achieve sufficient shielding properties when the mating body portion and cover plate portions are in a spaced-apart relationship, leading to inadequate return paths for signal transmission.

Innovation Solution

The coaxial electrical connector design incorporates arm-shaped or contact pieces that extend from the mating body portion to contact both the mating body and cover plate portions, forming a return path and enhancing shielding properties by bridging the gap between them.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the mating body portion and cover plate portions are positioned in a spaced-apart relationship, then the ease of manufacture is improved, but the shielding properties deteriorate due to inadequate return paths

Engineering Contradiction:
Improveease of manufactureVSAvoidshielding properties
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent introduces an intermediate member (such as a bridge structure or conductive element) that connects the mating body portion and cover plate portions, which are spaced apart from each other. This intermediate member serves as a mediator to provide a return path for shielding currents, thereby maintaining shielding properties despite the spatial separation between the mating body portion and cover plate portions.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the mating body portion and cover plate portions are brought into direct contact, then the shielding properties are improved, but the device complexity increases

Engineering Contradiction:
Improveshielding propertiesVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Instead of directly contacting the mating body portion and cover plate portions, the patent employs an intermediate member that bridges the gap between them. This approach maintains the shielding function while avoiding the complexity of direct mechanical contact and associated alignment tolerances.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent resolves the spatial conflict by transitioning from a direct linear contact approach to a multi-dimensional configuration where the intermediate member connects the spaced-apart components through three-dimensional space, enabling shielding without direct contact.

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

3Ease of operation

If the mating body portion and cover plate portions are spaced apart, then the ease of operation is improved, but the return path for signal transmission is inadequate

Engineering Contradiction:
Improveease of operationVSAvoidreturn path
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The intermediate member acts as a conductive bridge that provides a continuous return path for shielding currents between the mating body portion and cover plate portions, enabling proper signal transmission and grounding despite the operational spacing between these components.

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

This design effectively forms a return path through the outer conductor and cover plate portions, significantly improving shielding properties even when the mating body and cover plate portions are not in direct contact.

Implementation Method 1

bringing the front contact portions into contact with the mating body portion while bringing the rear contact portions into contact with the cover plate portions places the counterpart outer conductor and the cover plate portions in electrical communication via the mating body portion, front contact portions, and rear contact portions

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS11303076B2Coaxial electrical connector
Publication Date: 2022.04.12 HIROSE ELECTRIC CO LTD
  • US11303076B2 patent drawing
  • US11303076B2 patent drawing
  • US11303076B2 patent drawing

AI summary

An outer conductor 70 has arm-shaped portions 74 that extend from a mating body portion 73, the arm-shaped portions 74 are of a curved shape and have front contact portions 74B-2 enabled to contact the mating body portion 73 and rear contact portions 74B-1 enabled to contact cover plate portions 76, and bringing the front contact portions 74B-2 into contact with the mating body portion 73 while bringing the rear contact portions 74B-1 into contact with the cover plate portions 76 places the counterpart outer conductor and the cover plate portions 76 in electrical communication via the mating body portion 73, front contact portions 74B-2, and rear contact portions 74B-1.