Adapter Plug and Inductive Charging for Versatile Power Banks
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Solution Overview
Problem
Existing power bank charging solutions lack versatility and efficiency in charging both power banks and portable devices, particularly in terms of adaptable charging rates and methods, such as direct electrical connections and inductive charging.
Innovation Solution
The development of an adapter plug with a housing, electrical connectors, and a primary coil that can engage a power bank for direct charging and interact with portable devices for inductive charging, along with a power bank design featuring a secondary coil and a controller for automatic power delivery based on magnetic field detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a power bank uses a single charging port and method, then the device structure is simple, but the charging versatility and adaptability are limited
Solution Approach 1:
The adapter plug is designed with dual functionality: it can charge power banks through direct electrical connection via USB connectors, and it can charge portable devices through inductive charging using the primary coil. This multi-functionality allows a single device to serve multiple charging purposes, resolving the contradiction between charging versatility and device complexity.
Solution Approach 2:
The adapter plug acts as an intermediary device that bridges two different charging methods (direct electrical connection and inductive charging). By incorporating both USB electrical connectors and a primary coil, the adapter plug mediates between different power delivery protocols, enabling versatile charging without requiring separate dedicated devices for each charging method.
2Productivity
If the power bank manually selects charging modes, then the control system is simple, but the charging efficiency and user convenience are reduced
Solution Approach 1:
The controller incorporates detection functionality that automatically identifies whether a portable device is placed on the external panel and whether inductive charging conditions are met. Based on this feedback, the controller automatically switches between charging modes (direct charging via USB or inductive charging via coil), eliminating the need for manual user selection and improving charging efficiency while maintaining reasonable control system complexity.
Solution Approach 2:
The power bank system performs self-detection and self-adjustment of charging modes. When a portable device is detected on the external panel, the system automatically activates inductive charging without requiring user intervention. This self-service capability improves productivity by ensuring optimal charging efficiency while keeping the control system relatively simple through automated decision-making logic.
3Adaptability or versatility
If the adapter plug supports multiple charging methods, then the charging adaptability is improved, but the ease of operation is reduced
Solution Approach 1:
The adapter plug and power bank system automatically detect the appropriate charging method and execute the charging process without requiring user configuration or mode selection. Users simply need to connect via USB or place the device on the external panel, and the system handles the rest, maintaining ease of operation while supporting multiple charging methods.
Solution Approach 2:
The system continuously monitors connection status and device presence to automatically determine the appropriate charging mode. This feedback mechanism ensures that the most suitable charging method is selected based on current conditions, providing charging adaptability without burdening the user with operational complexity.
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 versatile charging of power banks with different capacities and portable devices using a single adapter plug, ensuring efficient and automatic power transfer, enhancing convenience and adaptability.
Implementation Method 1
The primary coil is configured to interact with a secondary coil of a portable device to deliver electrical power from the first battery to a second battery that is secured to the portable device
Data Source
AI summary
An adapter plug for a power bank includes a housing, electrical connectors, prongs, and an electrical circuit. The electrical connector associated with the housing and are configured to contact an electrical connector of a power bank. The prongs are configured to engage an electrical wall outlet. The electrical circuit is disposed within the housing and electrically connects the prongs to the electrical connectors. The prongs, electrical circuit, and the electrical connector of the housing is configured to deliver electrical power from the electrical wall outlet to the power bank to recharge a battery of the power bank when the electrical connector of the housing contacts the electrical connector of the power bank and when the prongs engage the electrical wall outlet.