Concentric Magnetic EV Charging Plug for Hands-Free Connection
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Solution Overview
Problem
Conventional electric vehicle (EV) charging systems require accurate alignment between the charging plug and the charging port, which can be difficult in low light conditions or for individuals with physical limitations, and do not facilitate hands-free charging.
Innovation Solution
The implementation of an EV charging system with a charging plug featuring concentrically arranged magnetic and electrical surface contacts, allowing for secure connection without rotational alignment and enabling hands-free charging through robotic systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional charging plugs with pins are used, then reliable electrical connection is achieved, but accurate alignment between plug and port is required which is difficult in low light or for individuals with physical limitations
Solution Approach 1:
The patent replaces the traditional mechanical pin-based electrical connection system with a magnetic field-based system. Magnets embedded in the charging plug automatically align with corresponding magnets or ferromagnetic materials in the charging port, eliminating the need for precise manual alignment while maintaining reliable electrical contact through the magnetic attraction force.
Solution Approach 2:
The magnetic alignment system enables the charging plug to self-align with the charging port automatically upon approach. The magnetic field guides the plug into the correct position without requiring user intervention for alignment, making the connection process intuitive and accessible to all users regardless of physical ability or lighting conditions.
2Extent of automation
If conventional charging systems are used, then charging function is provided, but hands-free charging capability is not available
Solution Approach 1:
The magnetic coupling system replaces manual plug insertion with automatic magnetic attraction. The magnets in the charging plug are drawn to the corresponding magnetic or ferromagnetic elements in the port, enabling automated connection that can be integrated with robotic systems for fully hands-free operation.
Solution Approach 2:
The patent changes the fundamental parameter of connection force from manual mechanical insertion force to magnetic attraction force. This parameter change enables automated and hands-free operation since magnetic forces can be controlled and activated without direct human intervention, facilitating robotic charging systems.
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
This solution simplifies the connection process, improves accessibility for individuals with physical limitations, and enables convenient hands-free charging, enhancing user experience and convenience.
Implementation Method 1
a magnetic charging plug and EV charging port having concentrically arranged circular magnetic and electrical surface contacts
Data Source
AI summary
One or more examples provide an electric vehicle charging system with a charging plug system having concentrically arranged magnetic and electrical surface contacts which improve the ease of connection between a charging station and an EV and readily enable hands-free EV charging systems.