Induction Roofing Tool Natural Convection Cooling

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Solution Overview

Problem

Conventional induction heating tools for membrane roofing are not portable, require forced cooling, and lack features for distinguishing between multiple tools in use, tracking usage data, and identifying faults during operation.

Innovation Solution

A portable induction heating tool with natural air convection cooling, a controller for data logging and fault identification, and distinct audible tones for tool differentiation, allowing simultaneous use on a single roof while maintaining stability on sloped surfaces and withstanding wet weather.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If forced cooling mechanisms are used to cool electronics, then cooling effectiveness is improved, but device complexity and portability are worsened

Engineering Contradiction:
Improveelectronics coolingVSAvoidcooling system complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The patent removes forced cooling mechanisms (fans, pumps) from the induction heating tool, extracting the complex active cooling system and replacing it with passive natural convection cooling. This eliminates moving parts and reduces device complexity while maintaining portability, allowing the tool to be easily transported and used on rooftops without requiring external power sources for cooling.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The electronics are cooled through natural air convection, allowing the system to cool itself without external intervention or forced airflow. The housing design incorporates passive thermal management features that enable heat dissipation through natural convection currents, eliminating the need for active cooling components and reducing overall device complexity.

Inventive Principle:
Principle #25Self-service

2Productivity

If multiple tools are used simultaneously on a single roof, then productivity is improved, but user ability to distinguish between tools is worsened

Engineering Contradiction:
Improveroofing installation speedVSAvoidtool identification
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The patent incorporates distinct audible tones as identifying characteristics for different tools, allowing users to easily distinguish between multiple tools operating simultaneously on a rooftop. Each tool emits a unique acoustic signal that serves as its identifier, enabling workers to track and manage multiple tools without confusion, thereby maintaining ease of operation while improving productivity through parallel tool usage.

Inventive Principle:
Principle #32Color changes

3Loss of information

If data logging and fault tracking features are added, then tool management capability is improved, but device complexity is worsened

Engineering Contradiction:
Improveusage data trackingVSAvoidcontroller complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The controller is designed to perform multiple functions: induction heating control, data logging of usage information, fault detection and tracking, and tool identification through audible tones. By integrating these diverse functions into a single multi-functional controller, the patent reduces overall system complexity compared to having separate devices for each function, while still providing comprehensive tool management capabilities.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Enables efficient, data-driven membrane roofing with improved tool management and user feedback, ensuring proper operation and fault detection without the need for forced cooling, while allowing multiple tools to be used simultaneously on a single site.

Implementation Method 1

an induction coil located in the base portion

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

induction heating apparatus... an induction coil located in the base portion

Methodology Applied
Scientific EffectInduction heating: Induction Heating

Implementation Method 3

all of the electronics are cooled strictly by natural air convection cooling

Methodology Applied
Scientific EffectNatural air convection cooling: Free Convection

Implementation Method 4

a plurality of heat sink elements that are positioned on a portion of a surface of the housing of the body portion to dissipate thermal energy from interior space of the body portion

Methodology Applied
Scientific EffectHeat dissipation: Heat Sink

Data Source

PatentUS8933379B2Stand-up membrane roofing induction heating tool
Publication Date: 2015.01.13 OMG BUILDING PRODUCTS LLC
  • US8933379B2 patent drawing
  • US8933379B2 patent drawing
  • US8933379B2 patent drawing

AI summary

A portable induction heating tool is provided as a membrane roofing tool for use in sealing anchor plates with a heat-activated adhesive to a membrane roofing member. The tool uses two different audible tones so two tools can be used simultaneously on a single roof, while allowing a user to easily distinguish between the operation of both tools. The main housing containing electronics is weather-tight, and requires no forced-cooling devices. The controller automatically performs data logging functions, such as counting the number of anchor plates per job or per day that have been properly placed, counting the number of activation events for a tool's life, tracking the number of faults which occur as the tool is being used, and the controller can identify the type of fault that occurs during operation of the tool. The controller also stores energy setting changes in memory.