Magnetic Adapter Assembly for Contactless Power Transfer
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Solution Overview
Problem
Existing adapter assemblies for electrical power transfer require physical contact between conductive parts, leading to safety risks, wear, and potential heat generation and fire, and lack suitable transformation and standard compatibility.
Innovation Solution
An adapter assembly with magnetic fastening means for contactless power transfer using a transformer, where the female receptacle has a primary side and the male plug has a secondary side, allowing power transfer without physical contact and incorporating a rectifier unit for voltage transformation, reducing mechanical wear and enhancing safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical contact between conductive parts is used for power transfer, then electrical connection is established, but safety risks, wear, and heat generation occur
Solution Approach 1:
The patent replaces the mechanical contact-based electrical connection system with an inductive power transfer system using magnetic fields. The primary coil in the adapter and secondary coil in the plug create electromagnetic induction for contactless power transfer, eliminating mechanical wear, heat generation from contact resistance, and safety risks associated with exposed conductive parts.
Solution Approach 2:
The patent introduces magnetic fields as an intermediary medium for power transfer between the adapter and plug. The magnetic field serves as the mediator that transfers electrical energy without requiring direct physical contact between conductive parts, thereby eliminating the harmful effects of mechanical contact while maintaining efficient power transfer.
2Reliability
If physical contact between conductive parts is used for power transfer, then electrical connection is established, but mechanical wear occurs
Solution Approach 1:
The patent replaces the mechanical contact-based electrical connection system with an inductive power transfer system using magnetic fields. The primary coil in the adapter and secondary coil in the plug create electromagnetic induction for contactless power transfer, eliminating mechanical wear, heat generation from contact resistance, and safety risks associated with exposed conductive parts.
3Strength
If magnetic fastening means are used for connection, then physical contact is achieved for fastening, but the power transferring parts still require contact
Solution Approach 1:
The patent divides the connection system into two independent functional components: magnetic fastening means for mechanical connection and inductive coupling means for power transfer. The magnetic elements provide strong mechanical attachment between adapter and plug, while the separate coil systems enable contactless power transfer, eliminating heat generation from contact resistance while maintaining secure connection.
Solution Approach 2:
The patent introduces magnetic fields as an intermediary medium for power transfer between the adapter and plug. The magnetic field serves as the mediator that transfers electrical energy without requiring direct physical contact between conductive parts, thereby eliminating the harmful effects of mechanical contact while maintaining efficient power transfer.
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 solution provides a safer, wear-free, and adaptable means for electrical power transfer, eliminating physical contact risks, enabling efficient transformation of AC to AC or DC power, and retrofitting existing receptacles and plugs for universal compatibility.
Implementation Method 1
the female receptacle comprises a primary side of a transformer and the male plug comprises a secondary side of the transformer, such that when the female receptacle and male plug are connected together via the magnetic fastening means, the transformer is capable of transferring power from the female receptacle to the male plug without physical contact between power transferring parts
Implementation Method 2
the female receptacle and the male plug are provided with corresponding magnetic fastening means, respectively, for mutual connection by means of a magnetic force
Data Source
Figure 1a~1c
Figure 2a~2b
Figure 2c~3a
AI summary
Adapter assembly for contactless transfer of electrical power, comprising a receptacle adapter (110) and a plug adapter (120), wherein the receptacle adapter (110) and the plug adapter (120) are provided with corresponding magnetic fastening means (113,123), respectively, for mutual connection by means of a magnetic force, wherein the receptacle adapter (110) and plug adapter (120) are provided with means for contactless transfer of electrical power in that the receptacle adapter (110) comprises a primary side (131) of a transformer (132) and the plug adapter (120) comprises a secondary side (133) of the transformer (132), such that when the receptacle adapter (110) and plug adapter (120) are connected together via the magnetic fastening means(113,123), the transformer (132) is capable of transferring power from the receptacle adapter (110) to the plug adapter (120) without physical contact between power transferring parts.