Laminar Pad Multi-Coil Inductive Power Transfer
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Solution Overview
Problem
Current inductively chargeable devices require precise alignment with their chargers, limiting user convenience and efficiency, as they often offer few degrees of freedom for placement and cannot simultaneously charge multiple devices with different power requirements.
Innovation Solution
A system with a laminar pad containing multiple coils of varying shapes and sizes, allowing power transfer across different positions and rotations, and the ability to selectively activate coils based on device size and power requirements, enabling efficient and universal charging with multiple degrees of freedom.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single coil is used in the charger, then the device structure is simple, but the device must be precisely aligned with the charger, limiting degrees of freedom
Solution Approach 1:
The charger coil is divided into multiple independent coils (first coil and second coil) arranged in different orientations. This segmentation allows the system to provide multiple degrees of freedom for device placement, as devices can be charged by aligning with either the first coil or the second coil, eliminating the need for precise alignment with a single coil configuration.
2Ease of manufacture
If a single coil is used in the charger, then manufacturing is simple, but multiple devices cannot be charged simultaneously
Solution Approach 1:
The charger incorporates multiple independent coils (first coil and second coil) that can operate simultaneously or independently. This enables the charger to support multiple devices at the same time, with each device utilizing the appropriate coil configuration, thereby improving productivity without significantly complicating the manufacturing process.
3Device complexity
If a single coil size is used, then the charger design is simple, but devices with different power requirements cannot be efficiently charged
Solution Approach 1:
The charger uses multiple coils with different sizes and orientations (first coil and second coil). This segmentation allows the system to adapt to devices with different power requirements and form factors. Devices can be efficiently charged by selecting the appropriate coil configuration, enhancing versatility while maintaining relatively simple design and manufacturing.
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 enhances user convenience by allowing devices to be placed without precise alignment, supports simultaneous charging of multiple devices, and maintains high efficiency and universality in power transfer, while reducing manufacturing complexity and costs.
Implementation Method 1
a unit for transferring power in an inductive manner to at least one power-receiving device, the unit being provided with at least one electrical coil
Data Source
AI summary
A unit for transferring power in an inductive manner to at least one power-receiving device, and a system comprising such a unit and such a device. The unit includes at least one coil structure configured to allow various degrees of translational and rotational freedom of movement of the power-receiving device relative thereto. This provides increased ease of use, since it is not necessary for a user to place the power-receiving device in mechanical or other registration with the unit.