Wireless Earphone Charging Connectors With ESD Interference Suppression
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Solution Overview
Problem
Wireless earphones are prone to interference from high-frequency or high-voltage signals generated by electrostatic discharge (ESD) and surges, which can break down components and reduce the stability of the earphone system due to exposed electrical connectors.
Innovation Solution
Incorporating an anti-interference component, such as a bead or resistor, connected to the electrical connectors to suppress and filter out high-frequency or high-voltage interference signals, ensuring they pass through the component before reaching the circuit system, thereby reducing interference and improving stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If electrical connectors are exposed outside the wireless earphone for charging, then charging convenience is improved, but the earphone becomes vulnerable to ESD and surge interference
Solution Approach 1:
The patent introduces an anti-interference component as an intermediary element between the electrical connector and the internal circuit system. This component acts as a mediator that allows normal charging current to pass through while blocking harmful high-frequency interference signals from ESD and surge events, thus protecting the circuit system without compromising charging functionality
2Reliability
If anti-interference components are added to protect against interference signals, then system stability is improved, but device complexity increases
Solution Approach 1:
The patent employs relatively simple and cost-effective anti-interference components that can be easily integrated into the existing circuit board design. These components provide necessary protection without requiring complex circuit architectures, maintaining ease of manufacture and assembly while achieving the desired reliability improvement
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 anti-interference component effectively attenuates high-frequency and high-voltage interference signals, enhancing the stability of the wireless earphone system by preventing damage to components and maintaining system integrity.
Implementation Method 1
interference signals generated by an electrostatic discharge (electro-static discharge, ESD), a surge, and the like
Data Source
AI summary
A wireless earphone includes a housing and a power system disposed in a cavity formed by the housing. The power system is configured to supply power to the wireless earphone. The wireless earphone further includes a first electrical connector and a second electrical connector disposed on the housing and are respectively electrically coupled to two electrodes of the power system, and the electrodes include a positive electrode or a negative electrode. At least one of the first electrical connector or the second electrical connector is electrically coupled to one of the electrodes using an anti-interference component. The anti-interference component is configured to suppress an interference signal introduced from the first electrical connector or the second electrical connector.