Wireless Charging Receiver Module With Magnetic Shielding and Qi Compatibility

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Solution Overview

Problem

Existing wireless charging receivers for electronic products are custom-developed, prolonging development cycles and increasing costs, and technologies like A4WP and NFC have high manufacturing costs, low efficiency, high power consumption, and poor compatibility.

Innovation Solution

A wireless charging receiver module with a cover body, circuit board, conductive coil, and magnetic shielding layer, utilizing electromagnetic induction and the Qi standard for compatibility, along with independent circuitry and magnetic shielding to enhance efficiency and reduce costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If wireless charging receivers are custom developed based on electronic products, then the charging function can be tailored to specific products, but the development cycle is prolonged and development cost increases

Engineering Contradiction:
Improvecharging function tailoringVSAvoiddevelopment cycle
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The wireless charging receiver is segmented into a standalone module with independent circuit board, coil assembly, and magnetic shielding layer. This modular design allows the charging function to be developed independently and then integrated into different electronic products, reducing the overall development cycle while maintaining adaptability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The wireless charging receiver module is designed with universal compatibility to work with multiple types of electronic products. The module uses standard interfaces and can be adapted to different products without requiring complete custom development, thus reducing development time while maintaining versatility.

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

2Adaptability or versatility

If A4WP or NFC technology is used for wireless charging, then wireless charging function is achieved, but manufacturing cost is high, wireless charging efficiency is low, power consumption is high and compatibility is poor

Engineering Contradiction:
ImprovecompatibilityVSAvoidpower consumption
Core Design Contradiction:
Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The patent employs magnetic shielding layer with specific magnetic permeability parameters to optimize the magnetic field distribution. By adjusting the magnetic shielding parameters and coil configuration, the system achieves higher charging efficiency and lower power consumption while maintaining broad compatibility through parameter optimization rather than proprietary protocols.

Inventive Principle:
Principle #35Parameter changes

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 reduces development time and costs, improves charging efficiency, and ensures compatibility with various transmitters, while allowing easy assembly and disassembly without material waste.

Implementation Method 1

utilizing electromagnetic induction and the Qi standard for compatibility

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

The first magnetic shielding layer is located in the cover body and disposed between the circuit board and the conductive coil

Methodology Applied
Scientific EffectMagnetic shielding: Magnetic Field

Data Source

PatentUS12567771B1Wireless charging receiver module and wireless power receiving device
Publication Date: 2026.03.03 PRIMAX ELECTRONICS LTD
  • US12567771B1 patent drawing
  • US12567771B1 patent drawing
  • US12567771B1 patent drawing

AI summary

The present invention provides a wireless charging receiver module, which includes a cover body, a circuit board, a set of first electrical connectors, a conductive coil and a first magnetic shielding layer. An upper cover portion of the cover body has a plurality of first through holes. The circuit board is located in the cover body. The set of first electrical connectors have a plurality of first conductive end portions exposed from an upper surface of the circuit board and respectively exposed from the first through holes. The conductive coil is located in the cover body and disposed beneath the circuit board. The first magnetic shielding layer is located in the cover body and disposed between the circuit board and the conductive coil. The present invention also provides a wireless power receiving device, which can accommodate and electrically connect to the above-mentioned wireless charging receiver module.