Portable EV Charger With Wheel-Lock Tether for Daily Recharging
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Solution Overview
Problem
Electric vehicle owners without access to charging stations or connections at home or work face challenges in obtaining daily range replenishment, necessitating alternative charging solutions.
Innovation Solution
A portable battery-based charging apparatus with a wheeled housing, security tether, and antitheft features that can be used with a standard outlet to charge an electric vehicle, featuring a battery array, telescoping handle, and multiple security tethers to secure the device to the vehicle wheel, along with alarm systems for unauthorized tampering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a portable charging apparatus is designed with sufficient battery capacity to provide daily range replenishment, then the charging capability is improved, but the weight and size of the apparatus increases
Solution Approach 1:
The battery array is recharged at a standard electrical outlet before use, storing energy in advance. This preliminary charging action allows the portable apparatus to provide substantial charging capacity to the EV without requiring a large battery that would be permanently installed, thus resolving the contradiction between portable weight and charging capability.
2Ease of operation
If the portable charging apparatus is designed to be easily transportable, then the ease of operation is improved, but the battery capacity and power output are reduced
Solution Approach 1:
The apparatus is equipped with wheels and a telescoping handle to facilitate easy transport to and from the EV, while the battery array is pre-charged at a standard outlet to ensure sufficient power capacity is available when needed, thus maintaining both portability and charging output.
3Reliability
If the apparatus includes comprehensive antitheft features and security tethers, then the security is improved, but the device complexity increases
Solution Approach 1:
The security system is divided into separate, modular components including a retractable security tether, alarm system, and cable lock mechanism. This segmentation allows each security feature to be independently implemented and managed, reducing overall system complexity while maintaining comprehensive security coverage.
4Ease of operation
If the apparatus uses a retractable security tether for anchoring to the EV wheel, then the ease of operation is improved, but the reliability of the security connection may be reduced
Solution Approach 1:
The security tether is designed as a retractable mechanism that can dynamically extend and retract as needed. This dynamic design allows the tether to be easily deployed and secured to the EV wheel while maintaining a reliable connection through controlled tension and anchoring mechanisms.
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 electric vehicle owners to achieve daily range replenishment without third-party charging stations by providing a portable, secure, and efficient charging solution that balances weight and capacity for commuting needs.
Implementation Method 1
a battery array that is designed to recharge using any available standard (relative to the area) outlet and then deliver that charge to any EV
Implementation Method 2
At least one converter converts alternating current from the cord to direct current for charging the battery array, and/or converts direct current from the battery array to current for charging the electric vehicle
Data Source
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AI summary
An apparatus and method for charging an electric vehicle. The apparatus includes a wheeled portable housing with a telescoping handle. A battery array is within the portable housing, suitable for providing a daily charge for the electric vehicle. An antitheft security tether is attached to the portable housing, and forms a security loop extending that is foldable from an upright position, for transport, storage, or battery array charging, to a horizontal position for receiving a wheel of an electric vehicle. The looped tether extends around the tire on the ground so that the apparatus cannot be moved until the vehicle is moved.