Rotating Conductive Structure for Hair Curler Wire Protection

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Solution Overview

Problem

Existing hair curling bar technologies face issues with strain and breakage of electric wires due to the rotation of heating assemblies, leading to potential safety hazards like electric leakage or fires.

Innovation Solution

A rotating conductive structure comprising an insulating member, a conductive rotating member, and a conductive fixed member, where the conductive rotating member is electrically connected to a hairdressing assembly, and the conductive fixed member is fixedly mounted on a body, ensuring continuous circuit connection and reducing wire bending or separation during rotation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the heating assembly rotates during hair curling, then the user can wind and fix hair more conveniently, but the electric wires connected to the heating assembly experience strain and may break

Engineering Contradiction:

Improvehair winding convenienceVSAvoidelectric wire integrity

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent divides the conductive member into multiple segments: a fixed portion mounted on the handle, a rotating portion connected to the heating assembly, and an insulating member positioned between them. This segmentation allows the rotating portion to rotate freely while the fixed portion remains stationary, preventing wire strain and breakage during hair curling operations

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The insulating member acts as an intermediary between the fixed conductive portion and the rotating conductive portion. It enables rotational movement while maintaining electrical connection, serving as a mediator that resolves the conflict between rotation capability and wire integrity by allowing controlled movement without transmitting strain to the electric wires

Inventive Principle:

Principle #24Intermediary (Mediator)

2Duration of action of moving object

If the heating assembly rotates continuously, then the hair styling function is maintained, but the electric wires may break due to long-time usage

Engineering Contradiction:

Improvecontinuous rotation capabilityVSAvoidelectric wire durability

Core Design Contradiction:

Duration of action of moving objectVSReliability

Solution Approach 1:

By segmenting the conductive member into fixed and rotating portions separated by an insulating member, the patent enables continuous rotation of the heating assembly without causing cumulative strain on the electric wires. The fixed portion remains stationary while the rotating portion moves, allowing prolonged usage without wire breakage

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent implements partial rotation where only the rotating conductive portion and heating assembly rotate, while the fixed conductive portion and handle remain stationary. This partial action approach maintains the necessary rotational function for hair styling while minimizing stress on the electrical connection system, enabling long-term continuous operation

Inventive Principle:

Principle #16Partial or excessive action

3Device complexity

If electric wires are used to connect the rotating heating assembly, then the structure is simple, but the wires may break and cause safety hazards like electric leakage or fires

Engineering Contradiction:

Improveconnection structure simplicityVSAvoidelectric leakage and fire risk

Core Design Contradiction:

Device complexityVSObject-affected harmful factors

Solution Approach 1:

The patent segments the conductive connection into fixed and rotating portions with an insulating member between them. This segmentation eliminates the need for flexible electric wires to transmit rotation, thereby removing the safety hazards of wire breakage, electric leakage, and fire risks while maintaining structural simplicity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The insulating member serves as an intermediary that enables safe rotational movement. It prevents direct contact between the fixed and rotating conductive portions, eliminating the risk of electric leakage from wire breakage while still allowing the heating assembly to rotate for hair styling functions

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS12207718B1Rotating conductive structure, handle and hairdressing device

Publication Date: 2025.01.28 ZHENG ZHUHUA

AI summary

Disclosed in the present application are a rotating conductive structure, a handle and a hairdressing device. The rotating conductive structure has an axis of rotation and includes an insulating member, a conductive rotating member and a conductive fixed member. The conductive rotating member includes a first rotating portion and a second rotating portion; the conductive fixed member includes a first fixed portion and a second fixed portion, the first fixed portion is in contact with the first rotating portion, the second fixed portion is in contact with the second rotating portion; the insulating member is configured to isolate the first rotating portion from the second rotating portion; and a current passes through the first fixed portion, the first rotating portion, the hairdressing assembly, the second rotating portion and the second fixed portion in sequence to form a series circuit with a power source.