Wireless Power Coil Foreign Matter Removal Mechanism
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Solution Overview
Problem
Existing foreign matter removal mechanisms for wireless power-supplying systems either fail to remove foreign matter from the power-supplying coil or incur high manufacturing costs due to the need for a vibration drive source, such as a motor.
Innovation Solution
A foreign matter removal mechanism that utilizes a movable unit pushed by a vehicle to guide a cleaning unit along the power-supplying coil, eliminating the need for a vibration drive source by leveraging the vehicle's pushing force and incorporating a movable frame body and coil springs to move foreign matter into designated ditches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vibration drive source such as a motor is provided to remove foreign matter, then foreign matter removal capability is improved, but manufacturing cost increases
Solution Approach 1:
The cleaning unit utilizes the vehicle's own pushing force to move and clean the power-supplying coil, eliminating the need for external vibration drive sources. The system serves itself by converting the vehicle's motion into cleaning action through the movable cleaning unit that contacts and moves along the coil surface.
Solution Approach 2:
The movable cleaning unit acts as an intermediary between the vehicle and the power-supplying coil. It transfers the vehicle's pushing force into cleaning motion along the coil surface, enabling foreign matter removal without direct motor-driven vibration on the coil itself.
2Device complexity
If no foreign matter removal mechanism is provided, then device complexity is reduced, but foreign matter intrusion into the power-supplying coil space occurs
Solution Approach 1:
The cleaning unit is designed as a movable component that dynamically responds to vehicle movement. It moves along with the vehicle's pushing force and automatically tracks the power-supplying coil surface, providing adaptive cleaning without complex fixed mechanisms.
Solution Approach 2:
The foreign matter removal function is segmented from the main power supply system. The movable cleaning unit operates as a separate, independent component that can move and clean the coil surface without interfering with the electromagnetic coupling between coils.
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
Effectively removes foreign matter from the power-supplying coil without requiring a motor-driven vibration source, utilizing the vehicle's pushing force to clean the coil and prevent new foreign matter intrusion.
Implementation Method 1
a coil spring that connects between the movable unit and the movable cleaning unit
Implementation Method 2
a coil spring that connects between the movable unit and the movable cleaning unit
Data Source
AI summary
A foreign matter removal mechanism for removing foreign matter on a power-supplying coil that wirelessly supplies power to a parked vehicle from below, including: a movable unit that is pushed by the vehicle to move horizontally; and a movable cleaning unit that is coupled to the movable unit and moves, in conjunction with a movement of the movable unit, along an upper surface of the power-supplying coil.