EV Charging Device Switching Mechanism Prevents Simultaneous Connections
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Solution Overview
Problem
Electric vehicles face user-unfriendliness due to lengthy charging times when using household commercial power sources, and the risk of simultaneous high-speed and normal charging when both connectors are provided, leading to potential incorrect plug connections.
Innovation Solution
A charging device with distinct first and second charging circuits, each with different connection terminals, and a switching mechanism to prevent simultaneous charging, ensuring that the vehicle is charged through either the faster or initially connected circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If both high-speed charging connector and normal charging connector are provided on the vehicle body, then charging versatility is improved, but the risk of mistaken simultaneous connection increases
Solution Approach 1:
The patent combines both the high-speed charging connector and normal charging connector into a single integrated connector assembly. This merging approach allows the vehicle to support both charging types while preventing simultaneous connection through a unified switching mechanism controlled by a control unit, thus resolving the contradiction between versatility and safety
Solution Approach 2:
The control unit monitors the connection status of both charging circuits and automatically switches between them based on detected conditions. This feedback mechanism ensures that only one charging circuit operates at a time, preventing harmful simultaneous charging while maintaining the ability to accept both connector types
2Productivity
If simultaneous high-speed charging and normal charging are performed, then charging speed is improved, but system reliability deteriorates due to potential conflicts
Solution Approach 1:
The patent implements a dynamic switching mechanism where the control unit continuously monitors connection status and automatically transitions between high-speed charging and normal charging modes. This dynamic control prevents simultaneous operation conflicts while optimizing charging speed based on available resources and battery state
3Loss of time
If charging time is reduced using high-speed charger, then user convenience is improved, but infrastructure complexity increases
Solution Approach 1:
The patent designs a universal connector assembly that can accept both high-speed charging connectors and normal charging connectors. This multi-functional design allows the vehicle to utilize fast charging infrastructure when available (reducing charging time) while maintaining compatibility with standard charging infrastructure, without requiring separate dedicated connectors for each charging type
Data Source
AI summary
The present invention provides a charging device for an electric vehicle with which optimal charging can be performed reliably when charging a storage device of the electric vehicle, without performing fast charging and normal charging at the same time.