EV Charging Adapter Locking and Overheat Cutoff
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Solution Overview
Problem
Current electric vehicle charging technologies lack anti-theft functionality, temperature overload protection, and are inconvenient to carry, leading to potential damage from high temperatures and inability to charge vehicles when locked.
Innovation Solution
A compact charging adapter with a locking mechanism using an electromagnet and pressure plate, temperature monitoring, and compliance with national standards, ensuring secure charging and safety by preventing unplugging during charging and interrupting power when temperatures exceed 60°C.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a charging adapter is used to connect charging devices to electric vehicles, then charging compatibility is improved, but the device size increases and portability deteriorates
Solution Approach 1:
The charging adapter is divided into separate functional modules: a charging interface module that connects to the vehicle, a charging device interface module, and a control module. This segmentation allows each module to be optimized independently, reducing overall size while maintaining compatibility functions.
Solution Approach 2:
The charging adapter incorporates multiple charging protocols and interface types within a single compact device, enabling it to work with various charging devices and vehicle types. The control module can adapt to different charging standards, providing universal compatibility without requiring multiple separate adapters.
2Ease of operation
If existing charging guns and adapters are used without anti-theft function, then charging simplicity is maintained, but security deteriorates as vehicles cannot be charged when locked
Solution Approach 1:
The charging adapter includes a control module that receives feedback signals from the vehicle's locking system and charging state. When the vehicle is locked, the control module detects this state and automatically manages the charging connection, allowing charging to continue securely without requiring the owner to manually unlock the vehicle.
Solution Approach 2:
The charging adapter autonomously manages the charging process by detecting vehicle locking state and automatically controlling the charging connection. The system self-adjusts based on vehicle state without requiring user intervention, maintaining simplicity while enhancing security.
3Device complexity
If existing charging devices are used without temperature overload protection, then device complexity is reduced, but reliability deteriorates due to potential damage from high temperatures
Solution Approach 1:
The control module continuously monitors temperature during charging operations and receives feedback from temperature sensors. When abnormal temperature rise is detected, the control module automatically adjusts or terminates charging to prevent overheating damage, ensuring safety without requiring complex additional systems.
4Reliability
If a locking mechanism is added to prevent unauthorized disconnection, then charging security is improved, but device complexity increases
Solution Approach 1:
The charging adapter serves as an intermediary device between the charging device and the vehicle. The locking function is implemented within the adapter's control module rather than requiring separate mechanical locking mechanisms on both the charging device and vehicle, simplifying the overall system while maintaining security.
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 adapter provides secure, safe, and convenient charging by preventing unauthorized disconnection and protecting against overheating, ensuring reliable and efficient charging while adhering to national standards.
Implementation Method 1
an electromagnetic iron, installed under the locking pressure plate, and electrically connected with the charging socket, to lock the charging adapter and the charging socket of an electric vehicle in conjunction with the locking pressure plate
Implementation Method 2
the control board is equipped with a temperature sensor. When the temperature sensor detects a temperature above 60 degrees Celsius
Data Source
AI summary
A charging adapter for electric vehicle includes a connecting mechanism, a control board, a charging plug, a charging socket, a locking pressure plate and an electromagnet iron. The control board monitors the temperature change inside the charging adapter and control the switch-off. The charging plug and the charging socket are installed at two ends of the connecting mechanism respectively. When used, the charging plug is connected to a charging socket of the electric vehicle, and the charging socket is connected to a charging gun to activate an operating control system of the electric vehicle. The locking pressure plate is installed in a surface of the end of connection mechanism near the charging plug. The electromagnet iron is installed inside the connection mechanism and located under the locking pressure plate, and is combined with the locking pressure plate to lock the charging adapter with the charging socket of the electric vehicle.