Wireless Power Module Curved Coil Noise Reduction
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Solution Overview
Problem
Wireless charging systems face challenges with noise reduction due to varying electromagnetic wave standards, leading to increased components and structural changes in printed circuit boards, with significant noise interference between coils.
Innovation Solution
A wireless power module featuring a coil layer with a curved area and conductive lines on a wiring board, where at least some conductive lines cross the curved area within a predetermined angle range, combined with a ferrite wall structure for noise reduction and heat management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the number of noise reduction components is increased and PCB structure is changed, then noise filtering capability is improved, but device complexity increases
Solution Approach 1:
The patent extracts and eliminates the noise source at its origin by optimizing the coil structure and conductor arrangement, rather than adding multiple noise reduction components. The curved area design and specific angle constraints on conductive lines directly address the noise generation mechanism, removing the harmful factor without increasing device complexity.
Solution Approach 2:
Instead of adding components to filter noise after it is generated, the patent inverts the approach by designing the coil and conductor layout to prevent noise generation in the first place. The optimized geometric arrangement and angular constraints create a structure that inherently minimizes electromagnetic interference.
2Adaptability or versatility
If noise reduction components and structural changes are added, then electromagnetic compatibility is improved, but manufacturing complexity increases
Solution Approach 1:
The patent merges the noise reduction function into the fundamental coil and conductor structure design. The curved area and angular constraints are integrated into the manufacturing process itself, eliminating the need for separate noise reduction components and simplifying manufacturing while achieving electromagnetic compatibility.
3Object-affected harmful factors
If conductive lines are arranged to cross the curved area within a predetermined angle range, then noise is reduced, but wiring complexity increases
Solution Approach 1:
The patent applies local quality by imposing specific angular constraints only on conductive lines that cross the curved area, while other wiring can follow conventional patterns. This targeted approach reduces noise at the critical location without unnecessarily complicating the overall wiring design.
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 effectively reduces noise and heat generated during wireless power transmission and reception, enhancing noise filtering and compatibility across different standards.
Implementation Method 1
a coil layer including a coil electrically connected to the body
Implementation Method 2
combined with a ferrite wall structure for noise reduction and heat management
Data Source
AI summary
A wireless power module includes a coil layer including a coil including a curved area, a wiring board disposed on the coil layer, and a plurality of conductive lines disposed on the wiring board. At least a portion of the conductive lines crosses the curved area within a predetermined angle range when viewed in a plane.