Speaker Flat Cable Fold Structure for Thin Chassis Routing

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Solution Overview

Problem

Existing electronic apparatuses face challenges in accommodating installation errors between speakers using thin flat cables, which lack routing flexibility and require excessive bending, hindering miniaturization efforts.

Innovation Solution

A flat cable with ridge and valley fold lines is used to connect speakers, allowing for flexible routing and accommodating installation errors while maintaining a thin chassis design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of stationary object

If a thin flat cable (FFC) is used to connect speakers, then the chassis can be made thinner, but the cable lacks routing flexibility and cannot accommodate installation errors

Engineering Contradiction:
Improvechassis thicknessVSAvoidcable routing flexibility
Core Design Contradiction:
Length of stationary objectVSAdaptability or versatility

Solution Approach 1:

The flat cable is segmented into multiple rigid sections connected by flexible joints, allowing the cable to maintain overall rigidity for thin chassis design while having localized flexibility to accommodate installation errors and routing requirements

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cable incorporates dynamic flexible sections that can bend and adapt to different installation configurations, transforming a static rigid cable into a dynamically adaptable connector that maintains thin profile while providing routing flexibility

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If excessive bending is formed in the cable to accommodate installation errors, then installation flexibility is improved, but the space capacity increases which goes against miniaturization

Engineering Contradiction:
Improveinstallation flexibilityVSAvoidspace capacity
Core Design Contradiction:
Adaptability or versatilityVSVolume of stationary object

Solution Approach 1:

By dividing the cable into rigid segments with small flexible joints, the accommodation of installation errors is achieved through multiple small bends rather than one large bend, significantly reducing the space required while maintaining installation flexibility

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cable utilizes multi-dimensional routing capabilities through its segmented structure, allowing it to navigate installation errors in multiple directions and planes rather than requiring excessive bending in a single plane, thus reducing space requirements

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

Data Source

PatentUS12468355B2Electronic apparatus
Publication Date: 2025.11.11 LENOVO (SINGAPORE) PTE LTD
  • US12468355B2 patent drawing
  • US12468355B2 patent drawing
  • US12468355B2 patent drawing

AI summary

An electronic apparatus includes a pair of speakers in a chassis. The pair of speakers are connected via a flat cable. The flat cable has a ridge fold line that is convex on one face and a valley fold line that is convex on the other face so that the ridge and valley fold lines extend in a direction intersecting an extension direction of the flat cable. The chassis has a flat shape, and the flat cable is placed along the flat surface and has a long extending portion partially overlaps a protrusion of a battery in a plan view.