Rotatable Dual-Element Tool Head for Plastic Repair Welding

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Solution Overview

Problem

Existing electric heating tools for repairing plastic components are complex, difficult to assemble, and have limited construction methods, making them cumbersome to use for reinforcement welding.

Innovation Solution

A tool head for electric heating tools comprising a detachable body with a conductive component set and two heating elements, each with a resistor, allowing for easier assembly and improved construction flexibility by enabling 360-degree rotation and multi-angle positioning, facilitating efficient heat generation and repair.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If existing electric heating tools use a fixed complex component structure, then heating function is achieved, but assembly difficulty increases and construction flexibility is reduced

Engineering Contradiction:

Improveassembly easeVSAvoidcomponent structure complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The tool head is divided into separate modular components including a body, positioning portion, joining portion, conductive component set, and heating elements. These segmented parts can be independently manufactured and easily assembled together, reducing overall assembly difficulty while maintaining functional integrity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The positioning portion is designed with 360-degree rotational capability relative to the joining portion, enabling the heating tool to adapt to various construction angles and methods. This multi-functional design allows a single device to perform diverse repair operations on plastic components without requiring multiple specialized tools.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If existing electric heating tools use limited construction methods, then device structure is simplified, but repair versatility is reduced

Engineering Contradiction:

Improveconstruction method diversityVSAvoiddevice structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The positioning portion is pivotally connected to the joining portion, allowing dynamic rotation of 360 degrees during operation. This dynamic adjustment capability enables workers to adapt the heating tool to different repair positions and angles on plastic components, significantly enhancing construction method diversity without requiring multiple fixed-configuration tools.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The conductive component set is nested within the body structure, with the metal base, first conductive portion, and second conductive portion integrated in a compact arrangement. This nested design allows the complex multi-component electrical system to be housed within a relatively simple external structure, maintaining versatility while controlling overall device complexity.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Reliability

If existing electric heating tools use fixed heating elements, then manufacturing is simplified, but damage risk during assembly increases

Engineering Contradiction:

Improvedamage reductionVSAvoidassembly simplicity

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The heating elements are designed as separate detachable components that can be independently installed into the body. This segmentation allows for careful handling and precise positioning during assembly, reducing the risk of damage to the heating elements and other components while maintaining manufacturing simplicity through standardized interfaces.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The conductive component set and heating elements are pre-configured with appropriate electrical connections and positioning features before final assembly. This preliminary preparation ensures that components align correctly during assembly, minimizing handling errors and reducing damage risk while keeping the overall assembly process simple and systematic.

Inventive Principle:

Principle #10Preliminary action

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

Simplifies assembly, reduces damage risk, and enhances repair efficiency by allowing diversified construction methods and improved heat application for effective reinforcement welding of plastic components.

Implementation Method 1

The two resistors are respectively electrically connected to the conductive component set and the heating elements, thereby causing the two heating elements to generate heat

Methodology Applied

Scientific EffectJoule heating: Joule Heating

Data Source

PatentUS20220241886A1Tool head for electric heating tool

Publication Date: 2022.08.04 GOODHOUSE ENTERPRISE CO LTD

AI summary

A tool head for electric heating tool includes a body detachably set in the electric heating tool, a conductive component set mounted in the body and electrically connected to the power supply of the electric heating tool, and two heating elements set on the body. The two heating elements each contain a resistor. The two resistors are electrically connected to the conductive component set and the heating elements, so that the two heating elements generate heat, which can facilitate assembly, reduce damage, and improve technical effects such as diversified construction methods.