Smart Charger With Built-In USB Connector
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Solution Overview
Problem
Conventional Qi wireless chargers rely on dangling cables, which can become entangled and are an extra cumbersome component to carry, posing a practical issue for users.
Innovation Solution
A Qi charger with a built-in USB plug and embedded magnets that securely hold mobile devices during charging, eliminating the need for cables by using inductive power transfer and magnetic attraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a dangling cable is used to connect the charger to the power source, then electrical power can be transmitted, but the cable becomes entangled and adds complexity to carrying the device
Solution Approach 1:
The patent merges the power connector directly into the charger body, eliminating the separate cable component. The USB connector is integrated into the housing structure, allowing the charger to plug directly into power sources without requiring an external cable, thus reducing entanglement and carrying complexity.
Solution Approach 2:
The patent extracts the cable from the system by integrating its functionality directly into the charger housing. The connector is built-in rather than external, removing the dangling cable element that causes entanglement while maintaining the electrical connection function.
2Volume of moving object
If the charger body is made compact to reduce carrying burden, then portability is improved, but space for internal components is reduced
Solution Approach 1:
The patent nests multiple functional components within the compact charger housing. The USB connector, magnets, and wireless charging coils are integrated into the same housing space, allowing each component to occupy and utilize the available volume efficiently without requiring separate external elements.
Solution Approach 2:
The patent combines multiple functions (power connection, device holding, wireless charging) into a single integrated unit. The USB connector, magnets, and charging components are merged into one compact housing, achieving versatility without increasing overall size.
3Reliability
If magnets are embedded in the charger to hold the mobile device securely, then device positioning is improved, but manufacturing complexity increases
Solution Approach 1:
The patent applies magnets only in specific locations within the housing where they are needed for device retention. The magnets are strategically positioned to provide adequate holding force without requiring uniform distribution throughout the entire housing, simplifying the manufacturing process while maintaining reliability.
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 wireless charging without cables, providing a compact and convenient solution for charging mobile devices by integrating a pivotable USB connector and magnets for secure device positioning, reducing entanglement and carrying complexity.
Implementation Method 1
Qi chargers that charge batteries wirelessly... use an open interface standard that defines wireless power transfer using inductive charging... The base station contains a power transmitter that comprises a transmitting coil that generates an oscillating magnetic field. The Mobile Device contains a power receiver holding a receiving coil. The magnetic field induces an alternating current in the receiving coil by Faraday's law of induction.
Implementation Method 2
the body of the Qi charger incorporate several magnets that are interspersed over the body of the Qi charger... The case of the mobile device has attached thereto ferromagnetic thin sheet that strongly adhere to the magnets in the Qi charger, and thereby held firmly to it during charging cycles.
Data Source
AI summary
A wireless charger for charging a battery of a mobile device includes a housing configured to be coupled to a source of electrical energy, for receiving electrical energy the source of electrical energy and for converting at least a portion of the electrical energy to radiated electrical energy; a USB connector mounted directly to housing and configured to be plugged into an electrical socket of said source of electrical energy. A plurality of magnets are embedded or affixed to the housing and configured to magnetically attract ferromagnetic material associated with a mobile device, to hold and support the mobile device on or to a support surface of the housing.