Modular Power Tray With Removable Batteries for Portable AC/DC Supply
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Solution Overview
Problem
Conventional power systems are not portable and cannot efficiently provide both AC and DC power to various devices in professional and educational environments without a fixed power infrastructure.
Innovation Solution
A mobile power system comprising a power tray with a housing, a power inverter, electrical interfaces, and power outlets for AC power, along with removable power supplies containing battery cells for DC power, allowing for flexible and portable power distribution using a furniture stand or cart for easy transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional power systems are used, then stable power supply is achieved, but portability is lost
Solution Approach 1:
The power system is divided into separate modular components: power supplies with battery cells, a power tray with inverter, and external device interfaces. Each module can be independently handled, transported, and configured, enabling portability while maintaining system functionality through modular assembly and disassembly.
Solution Approach 2:
The power supplies serve multiple functions: they can be removed from the power tray for portable use, inserted into the power tray for AC power conversion, and directly connected to external devices for DC power supply. This multi-functionality resolves the contradiction by enabling the same component to provide stable power when assembled and portable power when disassembled.
2Adaptability or versatility
If both AC and DC power are provided to multiple devices, then power versatility is improved, but system complexity increases
Solution Approach 1:
The power supplies are designed as universal power sources that can directly supply DC power to external devices or be inserted into the power tray for AC power conversion. The power tray contains both AC and DC interfaces, allowing a single modular assembly to provide multiple power types to multiple devices without requiring separate complex systems.
Solution Approach 2:
The system automatically manages power distribution through intelligent control circuits that detect device power requirements and configure power flow accordingly. The controller manages battery cell groups, monitors charge/discharge states, and routes power from appropriate battery groups to AC or DC outputs, reducing manual configuration complexity while maintaining versatility.
3Duration of action of moving object
If battery cells are arranged in multiple groups for extended power, then power capacity is improved, but management complexity increases
Solution Approach 1:
The battery system is segmented into multiple battery cell groups (first, second, third, fourth groups) that can be independently managed and configured. Each group can be selectively connected to provide different power capacities and durations, allowing extended power supply while maintaining manageable modular structure through series/parallel configuration of discrete groups.
Solution Approach 2:
The controller automatically manages the multiple battery cell groups by monitoring charge/discharge states, managing power flow between groups, and controlling the power management integrated circuits. This self-managing system reduces operational complexity despite having multiple battery groups, as the controller handles configuration and monitoring without requiring manual intervention.
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 the provision of both AC and DC power to multiple devices in various settings, facilitating power availability in environments without conventional power systems, enhancing mobility and usability.
Implementation Method 1
a power inverter supported within the housing, a power outlet disposed on the housing and electrically connected to the power inverter. The power outlet is configured to supply AC power to a first external device
Implementation Method 2
a plurality of battery cells supported within the housing, and a second electrical interface disposed on the housing and electrically connected to the plurality of battery cells
Data Source
AI summary
A mobile power system includes a power tray including a housing, a power inverter, a plurality of first electrical interfaces supported by the housing and electrically connected to the power inverter, and a power outlet configured to supply AC power to a first external device. The mobile power system further includes a plurality of power supplies removably coupled to the power tray for alternately supplying DC power to the power inverter of the power tray and receiving charging power from the power tray. Each power supply includes a second electrical interface that selectively engages one of the plurality of first electrical interfaces to electrically connect each power supply to the power tray and a power output port configured to connect to a second external device to provide DC power to the second external device.