Grounded Multi-Pole Connector Structure for Noise Leakage Suppression

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing multi-pole connectors suffer from noise leakage issues, particularly when high-frequency signals are transmitted, due to gaps in the outer terminal design.

Innovation Solution

The multi-pole connector incorporates a ground conductor that overlaps and extends through the gaps in the outer terminal, connected to the substrate's ground potential, to absorb and discharge noise, with extension portions embedded in an insulating member to enhance noise suppression.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the outer terminal is designed with gaps, then the insulating member is exposed and structural integrity is maintained, but noise leakage occurs

Engineering Contradiction:
Improvestructural integrityVSAvoidnoise leakage
Core Design Contradiction:
Stability of the object's compositionVSObject-generated harmful factors

Solution Approach 1:

A ground conductor is introduced as an intermediary element between the inner terminal and the external environment. The ground conductor fills the gap in the outer terminal and is electrically connected to the inner terminal, serving as a mediator that blocks noise leakage while preserving the necessary gap structure for insulating member exposure.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The ground conductor is positioned in advance to counteract the harmful effect of noise leakage before it can occur. By pre-establishing the ground conductor in the gap region and connecting it to ground potential, the design proactively prevents noise from escaping through the gap rather than attempting to seal the gap after noise leakage is identified.

Inventive Principle:
Principle #9Preliminary anti-action

2Object-generated harmful factors

If the outer terminal is made continuous without gaps, then noise leakage is prevented, but the insulating member cannot be exposed and manufacturing complexity increases

Engineering Contradiction:
Improvenoise leakage suppressionVSAvoidstructural complexity
Core Design Contradiction:
Object-generated harmful factorsVSDevice complexity

Solution Approach 1:

The outer terminal is segmented with intentional gaps rather than being continuous. These gaps expose the insulating member and simplify manufacturing. The ground conductor is also segmented to match the gap pattern, creating a modular structure that maintains noise suppression functionality while reducing overall structural complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of making the entire outer terminal continuous to prevent noise leakage, the ground conductor is strategically placed only in the specific gap regions where noise leakage occurs. This localized approach maintains the beneficial gaps for insulating member exposure while providing noise suppression only where needed, reducing unnecessary structural complexity.

Inventive Principle:
Principle #3Local quality

3Object-generated harmful factors

If a ground conductor is added to fill the gap, then noise leakage is suppressed, but device complexity increases

Engineering Contradiction:
Improvenoise leakage suppressionVSAvoidcomponent complexity
Core Design Contradiction:
Object-generated harmful factorsVSDevice complexity

Solution Approach 1:

The ground conductor is merged with the existing connector structure by integrating it into the outer terminal assembly. The ground conductor shares the same spatial region as the outer terminal gap and is electrically connected to the inner terminal, combining multiple functions (noise suppression, electrical connection, structural support) into a single integrated component rather than adding separate independent elements.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The ground conductor serves multiple functions simultaneously: it blocks noise leakage through the gap, provides electrical connection to ground potential, supports the insulating member structure, and maintains the overall mechanical integrity of the connector. This multi-functionality reduces the need for additional separate components, offsetting the complexity increase from adding the ground conductor.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 configuration effectively suppresses noise leakage while maintaining signal characteristics by efficiently absorbing and discharging noise to the ground potential, allowing for flexible substrate design and improved signal integrity.

Implementation Method 1

a ground conductor to be electrically connected to a ground potential of the substrate... the ground conductor is disposed so as to overlap the gap formed in the outer terminal... effectively suppresses noise leakage while maintaining signal characteristics by efficiently absorbing and discharging noise to the ground potential

Methodology Applied
Scientific EffectElectrical Conduction: Conduction (electrical)

Data Source

PatentUS12542387B2Multi-pole connector
Publication Date: 2026.02.03 MURATA MFG CO LTD
  • US12542387B2 patent drawing
  • US12542387B2 patent drawing
  • US12542387B2 patent drawing

AI summary

A multi-pole connector from which noise is suppressed from leaking. The multi-pole connector to be mounted on a substrate having a mounting surface includes plural inner terminals, an outer terminal disposed so as to surround the plural inner terminals, an insulating member holding the outer terminal, and a ground conductor to be electrically connected to a ground potential of the substrate. The outer terminal has a gap exposing an outer side surface of the insulating member, and the ground conductor is disposed so as to overlap the gap formed in the outer terminal when viewed from the outer side surface side.