Induction Coil Assembly for Power Tool Illumination
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Solution Overview
Problem
Existing magneto-luminescent devices (MLDs) for power tools face limitations in efficiently generating power for illumination in low-light environments, with existing solutions often relying on complex magnetic rotor configurations and materials that are not flexible or cost-effective.
Innovation Solution
An induction-powered device comprising a bobbin with a magnetically permeable core and an electrically conductive coil, where the coil generates voltage in an alternating magnetic field to power an electrical load, such as a light source, with a modular design allowing for flexible coil placement and materials optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If existing MLDs use complex magnetic rotor configurations to generate power, then sufficient voltage for illumination is achieved, but device complexity and material requirements increase
Solution Approach 1:
The magnetic rotor is segmented into discrete permanent magnets arranged in alternating polar patterns around the rotor periphery, allowing modular construction and simplified manufacturing while maintaining effective magnetic field generation for induction heating
Solution Approach 2:
The patent combines the magnetic rotor structure with the induction heating coil assembly, where the rotor serves dual purposes of mechanical rotation and magnetic field generation, eliminating the need for separate complex magnetic configurations
2Power
If existing MLDs use complex magnetic rotor configurations, then power generation is sufficient, but cost-effectiveness decreases
Solution Approach 1:
The patent employs standard permanent magnets that can be easily replaced if needed, rather than complex or expensive magnetic configurations, making the system more cost-effective and easier to manufacture
Solution Approach 2:
The invention optimizes power generation by adjusting parameters such as rotor speed, magnetic field strength, and coil configuration rather than relying on complex magnetic rotor structures, achieving cost-effective power generation
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 flexible and cost-effective means to generate sufficient voltage for illumination in power tools, enhancing visibility in low-light conditions while reducing material complexity and increasing design versatility.
Implementation Method 1
the coil is configured to generate a voltage when exposed to the alternating magnetic field, to power the electrical load
Data Source
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AI summary
An induction-powered device for use in an alternating magnetic field comprises: a magnetically permeable core; an electrically conductive coil surrounding the core; and an electrical load electrically connected to the coil. The coil is configured to generate a voltage when exposed to the alternating magnetic field, to power the electrical load.