Portable Power System with AC/DC Inverter and Modular Batteries
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Solution Overview
Problem
Current power storage and supply systems are limited in their ability to function as both AC and DC power sources, lack flexibility in charging and discharging options, and are not expandable for various applications, particularly for cordless devices and uninterrupted power supply (UPS) systems.
Innovation Solution
A portable power storage and supply system that integrates an inverter with expandable battery modules, capable of accepting and providing both AC and DC power sources, allowing for simultaneous or separate charging and discharging, and compatible with renewable energy sources, featuring advanced control mechanisms for protection and efficient energy management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a power source is specified with a specific application (e.g., UPS for backup power, power bank for DC devices), then the device can be optimized for that specific function, but the system lacks versatility and cannot serve multiple applications simultaneously
Solution Approach 1:
The patent implements a universal power system where a single integrated controller manages multiple battery modules that can serve different applications simultaneously. The system provides both AC and DC outputs, supports multiple charging sources (AC grid, DC sources, renewable energy), and can function as UPS, portable power source, or energy storage system through software configuration rather than requiring separate dedicated devices
Solution Approach 2:
The patent divides the power system into independent, modular battery modules that can be connected in parallel to scale capacity. Each module contains its own protection circuitry but shares a common control system, allowing the system to be segmented for manufacturing and assembly while maintaining integrated functionality across multiple applications
2Adaptability or versatility
If the system accepts only single charging source (AC or DC), then the charging mechanism is simpler, but the system lacks flexibility for recharging options including renewable energy sources
Solution Approach 1:
The integrated controller is designed to universally accept multiple charging sources including AC grid power, DC power sources, and renewable energy inputs. The controller automatically identifies and manages different charging modes, switching between sources as needed, and provides unified charging management for all battery modules regardless of input source
Solution Approach 2:
The charging system dynamically adapts to different power sources by adjusting charging parameters in real-time. The controller monitors input source characteristics and automatically modifies charging current, voltage, and timing to optimize charging efficiency for each specific source type while maintaining system safety
3Adaptability or versatility
If battery modules are fixed in number, then the system structure is simpler, but the system cannot be expanded for different capacity requirements
Solution Approach 1:
The battery system is divided into standardized modular units that can be independently manufactured and then connected in parallel to achieve desired capacity. Each module has uniform connection interfaces and control protocols, allowing scalable expansion from single-module to multi-module configurations without increasing system complexity significantly
Solution Approach 2:
Multiple battery modules are nested within a common system architecture that provides unified management. The modules can be physically stacked or arranged in configurations that optimize space utilization while maintaining electrical connectivity through standardized interfaces, allowing capacity expansion without proportionally increasing system footprint
4Adaptability or versatility
If the system provides only single output type (AC or DC), then the output mechanism is simpler, but the system cannot satisfy applications requiring both AC and DC power
Solution Approach 1:
The system incorporates an integrated inverter that converts DC battery power to AC output while maintaining DC output capability. The inverter is controlled by the same integrated controller that manages charging, creating a unified power management system that handles both AC and DC outputs simultaneously or independently based on application requirements
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 system provides a flexible and reliable power solution for a wide range of applications, ensuring uninterrupted power supply and efficient energy management through its ability to handle multiple power sources and prevent overcharge/discharge conditions, enhancing usability and safety.
Implementation Method 1
an inverter and an expandable number of multiple battery modules being connected in parallel... allows AC and DC power source for charging of the battery modules and at the same time allows AC and DC power when discharging the battery modules
Implementation Method 2
multiple battery modules being connected in parallel... provides energies in AC and DC form
Data Source
AI summary
A portable power storage and supply system having means for AC charging, DC charging, AC discharging and DC discharging wherein any one or any combination of the AC and DC charging and discharging can be carried at one time. The system includes an inverter, one or more battery modules and control means for controlling the AC and DC charging and discharging functions for safe and efficient operation. DC charging can include energy from a renewable energy source. The battery modules are separable from the system for providing DC energy for energizing automotive battery jumper cables or for energizing DC powered devices.