Portable Power Allocation for Multi-Port Charging and Discharging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional portable energy storage devices lack the capability to simultaneously charge and discharge multiple devices efficiently, leading to power allocation imbalances that can cause overheating, damage, and instability, particularly due to excessive load on internal circuit boards.
Innovation Solution
A portable energy storage device with a power allocation unit that distributes power among multiple input and output ports, setting limits to prevent overload and ensuring safe operation by defining maximum allowable powers and allocating power based on priority and demand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the portable energy storage device supports multiple charging and discharging ports simultaneously, then the power supply capability and versatility are improved, but the internal circuit board operates under high load causing excessive heat generation and potential damage
Solution Approach 1:
The patent divides the power allocation into separate segments for different port types (charging ports and discharging ports). The power management unit independently manages power distribution to each port type, applying specific power limit rules to charging ports and different power limit rules to discharging ports. This segmentation allows the system to handle multiple ports simultaneously while controlling heat generation through structured power distribution.
Solution Approach 2:
The patent dynamically adjusts power parameters (power limits) based on the operational state. When simultaneous charging and discharging is detected, the system changes the power allocation parameters by applying power limit rules to charging ports and different power limit rules to discharging ports. This parameter change ensures the total power remains within safe thermal limits while maintaining multi-port functionality.
2Ease of operation
If power is allocated without proper rules in simultaneous charging and discharging mode, then the power distribution flexibility is improved, but the internal circuit board experiences excessive load leading to instability and potential damage
Solution Approach 1:
The power management unit dynamically adjusts power distribution based on real-time detection of charging and discharging states. The system transitions between different power allocation modes: normal mode for single operations and simultaneous charging-discharging mode for combined operations. This dynamic adaptation maintains system reliability by applying appropriate power limits while preserving operational flexibility through adaptive power distribution.
Solution Approach 2:
The system implements feedback control by continuously monitoring the operational state of each port and adjusting power allocation accordingly. The power management unit detects when simultaneous charging and discharging occurs and automatically applies power limit rules to maintain stable operation. This feedback mechanism ensures reliability under varying load conditions while maintaining flexible power distribution capabilities.
3Productivity
If the device allows simultaneous charging and discharging without power allocation rules, then the productivity and power supply efficiency are improved, but voltage instability occurs that can damage connected device batteries
Solution Approach 1:
The system performs preliminary detection to identify when simultaneous charging and discharging conditions exist before power allocation issues can arise. Upon detecting this state, the power management unit proactively applies power limit rules to charging ports and different power limit rules to discharging ports. This preliminary action prevents voltage instability before it occurs, maintaining both productivity and device safety.
Solution Approach 2:
The patent implements protective measures in advance by establishing power limit rules that act as cushions against potential voltage instability. When simultaneous charging and discharging is detected, these pre-established rules automatically limit power flow to prevent harmful voltage fluctuations. This beforehand cushioning protects connected devices from damage while maintaining efficient power supply operation.
Data Source
AI summary
A portable energy storage device capable of simultaneous multi-port charging and discharging and method for allocating charging and discharging power, wherein the energy storage device includes a power allocation unit, at least two power input ports, and at least two charging output ports, wherein the power allocation unit is used for allocating power to the power input ports connected to the charging device and the charging output ports connected to the receiving device, and the maximum permissible operating power of the energy storage device in charging and discharging mode is defined as Pmax. By distributing the power of the power input port and the charging output port, the portable energy storage device is enabled to meet the demand for simultaneous charging and simultaneous power supply, ensuring a good user experience.