Laptop Charger Cable Storage Structure to Prevent Tangling

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional laptop chargers are cumbersome due to transformers and long cables, which easily get tangled or damaged when carried, and lack effective storage solutions, leading to improper protection and convenience issues.

Innovation Solution

A laptop charger design featuring a main body with a storage groove and column for winding the charging cable, a limiting board to secure the cable, and a transforming module for voltage conversion, allowing the cable to be stored and protected within the charger while preventing tangling and damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If the charging cable is made long to reach the laptop, then the charging range is improved, but the cable easily gets tangled and damaged when carried

Engineering Contradiction:
Improvecharging cable lengthVSAvoidcable protection
Core Design Contradiction:
Length of moving objectVSReliability

Solution Approach 1:

The charging cable is stored inside the charger body, with the cable wound around a column structure within the charger housing. This nesting approach allows the cable to be contained within the charger itself, preventing tangling and damage during transport while maintaining sufficient cable length for charging operations.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The charger is divided into functional modules: the main charger body housing, the internal column structure for cable winding, and the cable itself. This segmentation allows the cable to be separately managed and stored within the charger body, improving both portability and protection.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the transformer is included in the charger, then the voltage conversion function is provided, but the charger becomes cumbersome and difficult to carry

Engineering Contradiction:
Improvevoltage conversion functionVSAvoidcharger structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The transformer, charging circuitry, and cable storage function are merged into a single integrated charger body. This consolidation eliminates the need for separate components, reducing overall complexity and making the charger more portable while maintaining the essential voltage conversion capability.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If a cable tie is used to hold the charging cable, then the cable can be stored, but the storage effect varies and the cable still contacts other stuffs causing damage

Engineering Contradiction:
Improvecable storageVSAvoidcable protection
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

A column structure serves as an intermediary element between the cable and the charger body. The cable is wound around this column, which provides a dedicated winding surface and keeps the cable elevated and separated from other components within the charger, ensuring consistent storage and protection.

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

The solution provides a compact, protected, and convenient charging solution that prevents cable interference and damage, enhances carrying convenience, and prolongs the service life of the charging cable while allowing for versatile charging options, including wireless charging.

Implementation Method 1

the transformer reduces the voltage of an alternating current, and then the alternating current is converted to a direct current

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS20240380226A1Laptop charger
Publication Date: 2024.11.14 YUANTAI INNOVATIVE ENTERPRISE LTD
  • US20240380226A1 patent drawing
  • US20240380226A1 patent drawing
  • US20240380226A1 patent drawing

AI summary

A laptop charger has a main body, a charging cable, and a limiting board. The main body has a storage groove and a column extending from a bottom of the storage groove. The charging cable is configured to be wound around the column for being contained in the storage groove, and the limiting board is configured to be combined with the column to limit the charging cable in the storage groove. When the laptop charger is carried around with a laptop, the charging cable is limited and protected by the limiting board for convenience of storage and can be prevented from being bended, knotted, or even damaged. During charging, a redundant portion of the charging cable can be stored in the storage groove to prevent people from tripping over the charging cable, which improves safety during charging.