Motor Power-Generation Coil Module Axial Radial Magnetic Member
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Solution Overview
Problem
Conventional cooling fans with power-generating capabilities face challenges in miniaturization and simplicity due to complex structures and limited space for coil components, leading to increased size and manufacturing costs, while also struggling to generate sufficient electrical power.
Innovation Solution
A motor with a power-generating coil module featuring a base, rotor, driving circuit, and power-storing unit, where a single magnetic member with axial and radial extensions provides a magnetic field, allowing for a simple structure, reduced size, and efficient power generation without increasing axial size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If large areas of magnetic member surfaces are used to improve magnetic force and power generation, then the magnetic force and electric power generation are improved, but the axial size of the motor increases
Solution Approach 1:
The magnetic member extends in both axial and radial directions to provide magnetic surfaces in multiple dimensions. The first magnetic surface faces the first coil module in the axial direction, while the second magnetic surface faces the second coil module in the radial direction, allowing power generation in both axial and radial dimensions simultaneously without increasing overall axial size.
Solution Approach 2:
The single magnetic member serves multiple functions: it provides magnetic force for driving the rotor through the first magnetic surface, generates induced current through the second magnetic surface, and enables both driving and power-generating operations within a compact axial footprint.
2Power
If multiple separate magnet rings are used to provide magnetic fields for driving and power generation, then the magnetic field coverage is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines multiple magnet rings into a single integrated magnetic member that provides both the first magnetic surface for driving operation and the second magnetic surface for power-generating operation. This merging reduces the number of components and simplifies the overall structure while maintaining comprehensive magnetic field coverage.
Solution Approach 2:
The magnetic member is designed as a multi-functional component that simultaneously serves as the magnetic source for both the driving unit and the power-generating unit, eliminating the need for separate magnet rings and reducing structural complexity.
3Volume of moving object
If limited space is available on the fan wheel for coil components, then the motor size is reduced, but the power generation capability is limited
Solution Approach 1:
The patent utilizes both axial and radial dimensions for coil module arrangement. The first coil module is arranged in the axial direction while the second coil module is arranged in the radial direction, maximizing the use of available space on the fan wheel and enabling effective power generation within a compact motor size.
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 enables easy manufacturing, low costs, and enhanced power generation efficiency while maintaining a compact design, suitable for microminiaturization and thinning trends in motor technology.
Implementation Method 1
the first coil module (13) is electrically energized to generate an alternating magnetic field so as to move the magnetic member (23)
Implementation Method 2
the magnetic member (23) is moved relatively to the second coil module (14) by the rotation of the rotor (2), and thus the second coil module (14) generates an induced current by the magnetic field of the second magnetic face (234) due to flux linkage
Data Source
AI summary
A motor with power-generating coil module includes: a base that has a shaft tube, a supporting surface surrounding the shaft tube, a first coil module mounted on an outer circumferential surface of the shaft tube, and a second coil module disposed above the supporting surface; a rotor that has a carrier extending a lateral wall toward the base, a shaft rotatably coupling with the shaft tube, and a magnetic member mounted on the lateral wall and having an axial extension and a radial extension, with a first magnetic face on the axial extension and facing the first coil module and a second magnetic face on the radial extension and facing the second coil module; a driving circuit electrically connecting with one of the first and second coil modules; and a power-storing unit electrically connecting with the other one of the first and second coil modules.