Wireless Charging Stand with Recessed Support for Protruding Devices
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Solution Overview
Problem
The inefficiency in non-contact electric power transmission to portable devices with protrusions, such as printers, due to increased distance between power transmission and reception coils, which reduces charging efficiency.
Innovation Solution
A power transmission apparatus with a support section and notches or recesses to accommodate protrusions, allowing the power transmission coil to be close to the power reception coil, thereby minimizing the gap and enhancing alignment and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If protectors are mounted around the portable terminal apparatus to ensure fall-proof performance, then the device protection is improved, but the distance between the power transmission coil and the power reception coil increases, reducing power transmission efficiency
Solution Approach 1:
The charging stand transitions from a planar surface to a three-dimensional structure with recesses and protrusions. The recesses accommodate the protectors of the portable terminal apparatus, allowing the power transmission coil to be positioned closer to the power reception coil despite the presence of protectors, thereby maintaining power transmission efficiency while preserving device protection.
Solution Approach 2:
The recesses in the charging stand act as intermediaries that accommodate the protectors of the portable terminal apparatus. By providing this intermediate space, the structure enables the power transmission coil and power reception coil to be positioned in close proximity, resolving the conflict between device protection and power transmission efficiency.
2Reliability
If the portable terminal apparatus has a certain thickness with protectors for fall-proof performance, then the device protection is improved, but it becomes difficult to place the device on a planar charging stand with the power transmission coil in close proximity
Solution Approach 1:
The charging stand is designed with three-dimensional recesses that correspond to the protectors on the portable terminal apparatus. This dimensional adaptation allows devices with varying thicknesses and protector configurations to be properly positioned on the charging stand, ensuring both protection and effective power transmission.
Solution Approach 2:
The structure of the charging stand is modified by introducing recesses with specific dimensions that match the protectors of the portable terminal apparatus. This parameter change in the charging stand's geometry enables proper accommodation and positioning of devices with protectors, facilitating ease of placement while maintaining close proximity between coils.
3Device complexity
If the top plate of the charging stand is planar to accommodate thin portable terminal apparatus, then the charging stand structure is simple, but it cannot effectively accommodate devices with protrusions such as protectors
Solution Approach 1:
The top plate of the charging stand is segmented into multiple regions, including recesses and protrusions, rather than maintaining a uniform planar surface. This segmentation allows the charging stand to accommodate devices with various protector configurations, enhancing adaptability while maintaining reasonable structural simplicity.
Solution Approach 2:
The charging stand employs local quality by creating specific recesses and protrusions only in the areas where protectors need to be accommodated. The majority of the top plate remains planar, preserving structural simplicity, while localized three-dimensional features provide the necessary adaptability for devices with protrusions.
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 configuration ensures efficient power transmission by aligning the power transmission and reception coils within a minimal distance, facilitating effective charging of portable devices with protrusions.
Implementation Method 1
In the electromagnetic induction system, a power transmission coil is arranged in the power transmission apparatus and a power reception coil is arranged in the power reception apparatus to transmit the electric power through the electromagnetic induction between the power transmission coil and the power reception coil.
Data Source
AI summary
A non-contact power transmission apparatus for transmitting electric power in a non-contact manner to a power reception apparatus comprises a housing configured to include a support section for placing the power reception apparatus and a circuit section for transmission of the electric power therein; a power transmission antenna arranged at a position corresponding to the support section of the housing and configured to transmit AC power to the power reception apparatus; and a hollow formed in the vicinity of the support section in the housing and capable of housing an end protruding to the support section side of a protrusion included in the power reception apparatus.