Coil and Loop Antenna Layout to Prevent Charging Signal Interference
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Solution Overview
Problem
Existing portable terminals face issues with interference between non-contact charging systems using wireless power transmission and electronic settlement systems due to harmonic components, leading to unstable signal transmission and failure in performing desired functions.
Innovation Solution
A non-contact power reception apparatus with a power reception coil and loop antenna mounted on a battery pack and cover case, allowing selective modes for wireless power signal reception and data transmission, and a jig for fabricating a double-structure core to improve mobility and transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If both power reception coil and loop antenna are mounted in a single portable terminal, then non-contact charging and electronic settlement can be performed, but interference from harmonic components causes unstable signal transmission
Solution Approach 1:
The portable terminal is divided into distinct functional regions: the power reception coil is mounted on the battery pack while the loop antenna is mounted on the cover case. This spatial segmentation separates the charging system and settlement system into different physical locations, reducing electromagnetic interference between the two systems while maintaining dual functionality in a single terminal.
2Ease of operation
If power reception coil is placed in the center and loop antenna is disposed outside, then mode selection between power reception and data transmission is enabled, but device structure becomes more complex
Solution Approach 1:
The cover case serves multiple functions: it protects the terminal and simultaneously provides a mounting platform for the loop antenna. The battery pack also serves dual purposes as both power source and mounting structure for the power reception coil. This multi-functionality reduces the need for additional dedicated mounting structures, simplifying the overall device complexity while enabling mode selection capability.
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 simultaneous non-contact charging and electronic settlement in a single portable terminal by preventing interference between systems, improving reliability and adaptability, and reducing production costs.
Implementation Method 1
a power reception coil for a charging system... receiving a wireless power signal
Implementation Method 2
a loop antenna for an electronic settlement system... transmitting and receiving data
Data Source
AI summary
A non-contact power reception apparatus is provided, in which a power reception coil for a charging system and a loop antenna for an electronic settlement system are mounted on a battery pack and a cover case of a portable terminal such that the power reception coil is arranged in the center thereof and the loop antenna is disposed outside the power reception coil, so that a mode of receiving a wireless power signal and a mode of transmitting and receiving data are selectively performed, thereby preventing interference from harmonic components and enabling non-contact charging and electronic settlement using a single portable terminal. A jig for fabricating a core to be mounted to the non-contact power reception apparatus is provided.