Replaceable Battery Units for Portable Power Supply
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Solution Overview
Problem
Conventional emergency power supplies with solar cells and batteries face limitations in power generation and charge capacity due to size constraints, leading to reduced mobility and frequent battery replacements, which hinder continuous power supply.
Innovation Solution
A power supply device with multiple replaceable battery units, a control unit that manages the connection of these units for efficient charging and discharging, ensuring that no battery is depleted simultaneously, and a locking mechanism to secure connections and prevent uncontrolled power flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the area of the solar battery panel is increased to generate more power per unit time, then the power generation amount is improved, but the size of the portable cart must be increased which reduces mobility
Solution Approach 1:
The battery system is segmented into multiple replaceable battery units that can be independently managed. The control unit selectively connects specific battery units to the input unit (for charging) or output unit (for power supply) based on their charge amounts, enabling efficient power management without increasing the physical size of the portable cart.
Solution Approach 2:
The system dynamically switches between different battery units based on real-time charge status. The control unit monitors charge amounts and automatically selects which battery unit to connect to input/output units, optimizing power generation and supply efficiency without requiring a larger cart structure.
2Quantity of substance
If the size of the battery is increased to increase the maximum charge capacity, then the charge capacity is improved, but the size of the portable cart must be increased which reduces mobility
Solution Approach 1:
The battery system is divided into multiple replaceable battery units (first battery unit, second battery unit, etc.), each with its own charge capacity. This segmentation allows the system to achieve higher total charge capacity by combining multiple units without requiring a single large battery that would increase cart size.
Solution Approach 2:
The system changes the operational parameters by selectively connecting different battery units based on their charge amounts. The control unit monitors charge levels and dynamically switches between battery units, optimizing the use of available charge capacity without increasing the physical size of the portable cart.
3Device complexity
If a single battery unit is used, then the device complexity is reduced, but the continuous power supply capability is reduced due to frequent battery replacements
Solution Approach 1:
The battery system is segmented into multiple replaceable units that can be independently managed. When one battery unit is depleted, the control unit automatically switches to another battery unit, enabling continuous power supply without requiring frequent manual replacements or increasing overall system complexity.
Solution Approach 2:
The control unit continuously monitors the charge amounts of all battery units and automatically switches between them to maintain continuous power supply. This ensures that the useful action (power supply) continues without interruption, even as individual battery units are depleted and replaced or switched.
4Duration of action of stationary object
If multiple battery units are used with automatic switching, then the continuous power supply capability is improved, but the device complexity is increased due to control mechanisms
Solution Approach 1:
The control unit performs multiple functions: it monitors charge amounts of all battery units, determines which units to connect to input/output units, and switches between battery units as needed. This multi-functionality reduces the need for separate control mechanisms for each battery unit, thereby managing complexity while enabling continuous power supply.
Solution Approach 2:
The control unit automatically monitors and manages the battery units without requiring external intervention. It self-determines which battery units to connect based on charge amounts and automatically switches between them, reducing the complexity of manual management while maintaining continuous power supply capability.
Data Source
AI summary
A power supply device and a power supply control method with which charging and electric power supply can be continued efficiently, and a charge capacity can be added is disclosed. A power supply device including: plural battery units replaceably connected to a battery connection part, an output unit for outputting electric power from the battery unit to a load, and a control unit for controlling connection of the plural battery units with respect to the output unit, wherein the control unit selects a battery unit having a remaining charge amount that is smallest among the plural battery units and equal to or greater than a first predetermined amount, and connects the selected battery unit to the output unit.