Coaxial Cable Support Groove for PCB Bend Clearance

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Solution Overview

Problem

Existing coaxial cables in electronic devices face challenges in maintaining a consistent clearance between the signal and ground lines, particularly at bends, which affects signal performance and durability.

Innovation Solution

A support body with a groove design that accommodates coaxial cables, featuring path portions with inclined side surfaces and protrusions to guide and secure the cables, ensuring proper spacing and grounding, while accommodating different cable lengths.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a coaxial cable is routed through a bend region without support, then the device complexity is reduced, but the clearance between signal line and ground line cannot be guaranteed, affecting signal performance

Engineering Contradiction:

Improvecable routing structureVSAvoidclearance between signal line and ground line

Core Design Contradiction:

Device complexityVSManufacturing precision

Solution Approach 1:

A support body is introduced as an intermediary component between the coaxial cable and the bend region. The support body includes a groove that receives and guides the coaxial cable, maintaining the required clearance between signal line and ground line while allowing the cable to navigate the bend region without direct structural complexity in the cable routing itself

Inventive Principle:

Principle #24Intermediary (Mediator)

2Manufacturing precision

If retention structures are added to guide and secure the coaxial cable at multiple locations, then the clearance and signal performance are improved, but the device complexity increases

Engineering Contradiction:

Improveclearance between signal line and ground lineVSAvoidretention structure

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

Multiple retention functions are merged into a single integrated support body. The support body combines the groove for cable guidance, the protruding rib for grounding, and the recessed portion for strain relief into one unified structure, maintaining manufacturing precision while avoiding the complexity of multiple separate retention components

Inventive Principle:

Principle #5Merging (Combining)

3Manufacturing precision

If the coaxial cable is secured rigidly to maintain clearance, then signal performance is improved, but the cable cannot accommodate manufacturing tolerances and strain, reducing reliability

Engineering Contradiction:

Improveclearance between signal line and ground lineVSAvoidcable durability

Core Design Contradiction:

Manufacturing precisionVSReliability

Solution Approach 1:

The support body provides a dynamic solution where the groove guides the cable to maintain clearance, but the recessed portion allows controlled movement and strain relief. This dynamic configuration enables the cable to accommodate manufacturing tolerances and operational strain while maintaining signal performance through proper grounding via the protruding rib

Inventive Principle:

Principle #15Dynamics

Data Source

PatentEP4451653B1Electronic device comprising support body at which coaxial cable is positioned

Publication Date: 2026.03.04 SAMSUNG ELECTRONICS CO LTD

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AI summary

This electronic device is an electronic device comprising a coaxial cable connecting a first printed circuit board and a second printed circuit board, wherein a clamp is applied to the coaxial cable, the clamp and a support body are connected to the coaxial cable, and a protruding rib and a recess may be formed at the part of the support body where the clamp is positioned.