Auto-Retractable Charging Cable Adapter for Portability

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Solution Overview

Problem

Conventional power adapters and charging cables are either bulky when integrated or inconvenient to carry when separate, leading to portability issues and potential damage from casual winding.

Innovation Solution

An adapter with an integrated housing component, adapter assembly, and auto-retractable charging cable assembly that allows the charging cable to be securely stored and extended as needed, reducing size and enhancing portability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a power adapter and charging cable are integrated into one structure, then portability is improved, but the size becomes large

Engineering Contradiction:
ImproveportabilityVSAvoidsize
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The charging cable is designed to be retractable, allowing it to extend when needed for charging and retract when not in use. This dynamic configuration enables the cable to transition between extended and retracted states, providing portability benefits when retracted while maintaining functionality when extended, thus resolving the contradiction between integrated portability and size.

Inventive Principle:
Principle #15Dynamics

2Volume of moving object

If a power adapter and charging cable are used separately, then the adapter size is reduced, but convenience deteriorates due to carrying both items

Engineering Contradiction:
Improveadapter sizeVSAvoidconvenience
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The patent combines the power adapter and charging cable into a single integrated unit, where the cable is stored within the adapter housing. This merging eliminates the need to carry separate items, improving convenience while keeping the adapter compact through the retractable cable mechanism.

Inventive Principle:
Principle #5Merging (Combining)

3Volume of moving object

If a charging cable is wound casually for storage, then storage space is reduced, but reliability deteriorates due to breaking or poor contact

Engineering Contradiction:
Improvestorage spaceVSAvoidcable integrity
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The retractable cable mechanism automatically winds and stores the cable in a controlled manner within the adapter housing. This dynamic storage system prevents casual winding that could cause damage, ensuring the cable maintains its integrity and electrical contact reliability while occupying minimal storage space.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The cable is pre-configured with a retractable mechanism that provides protective guidance and controlled winding. This beforehand protection prevents sharp bends, excessive tension, and improper storage that could lead to breaking or poor contact, thus maintaining cable reliability throughout its service life.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS11575237B2Adapter
Publication Date: 2023.02.07 LUXSHARE PRECISION IND SHENZHEN
  • US11575237B2 patent drawing
  • US11575237B2 patent drawing
  • US11575237B2 patent drawing

AI summary

Provided is an adapter. The adapter includes a housing component, an adapter assembly, a first connector, a second connector, and a charging cable assembly. The housing component is provided with an accommodation space. The adapter assembly is disposed in the accommodation space. The first connector is electrically connected to the adapter assembly and is able to be accommodated in the accommodation space. The charging cable assembly includes a charging cable body and an auto-retractable cable box disposed in the accommodation space. A first end of the charging cable body is secured to the auto-retractable cable box. A second end of the charging cable body is able to be accommodated in the auto-retractable cable box or is extendable out of the auto-retractable cable box. The auto-retractable cable box is electrically connected to the adapter assembly. The second connector is connected to the second end of the charging cable body.