Multi-Port Power Allocation for Portable Energy Storage
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Solution Overview
Problem
Existing portable energy storage devices with multiple charging output ports either fix the output power of each port, leading to suboptimal performance when not all ports are in use, or require complex power distribution logic that complicates user experience.
Innovation Solution
A portable energy storage device with predefined priorities for charging output ports, allowing users to select priorities based on actual needs, and a power configuration unit that allocates power according to preset minimum and maximum output powers and priorities, ensuring all ports operate at their minimum power when total demand exceeds capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If complex power distribution logic is used to achieve maximum power output for each port, then power allocation flexibility is improved, but device complexity increases and user experience deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-defining priority relationships between multiple charging ports before actual charging occurs. The system establishes a static priority order (e.g., Port 1 > Port 2 > Port 3) that determines power allocation sequence, eliminating the need for complex real-time negotiation logic while ensuring flexible power distribution according to predefined rules
2Device complexity
If fixed output power is set for each charging port, then device complexity is reduced, but power utilization efficiency deteriorates when not all ports are in use
Solution Approach 1:
The patent applies dynamics by enabling the charging ports to dynamically adjust their output power based on the number of connected devices and their charging requirements. When only one device is connected, the system can allocate maximum power to that port; when multiple devices are connected, power is dynamically distributed according to the predefined priority scheme, optimizing power utilization without requiring complex real-time control logic
3Extent of automation
If connection sequence determines power priority, then power allocation automation is improved, but ease of operation deteriorates when users need to prioritize later-connected devices
Solution Approach 1:
The patent applies segmentation by separating the automation of power allocation from the flexibility of priority setting. The system automatically executes power distribution based on predefined port priorities, while users can independently configure which ports have higher priorities. This segmentation allows the system to be both automated in execution and flexible in configuration, resolving the contradiction between automation and user control
Data Source
AI summary
A portable energy storage device capable of simultaneous multi-port discharge and power allocation method, the device including multiple charging output ports, all or part of which have different preset power distribution priorities, enabling the user to determine the priority sequence of multiple power-receiving devices according to actual needs when using the device. Furthermore, when multiple charging output ports are all connected to power-receiving devices and the sum of the required power of the power-receiving devices exceeds the maximum power that the device can provide, all ports can still operate at their respective preset minimum power. If there is remaining power, the remaining power is preferentially allocated to the charging output ports with higher priority. Furthermore, when the number of charging output ports connected to power-receiving devices changes, the device reallocates power, thereby achieving dynamic power adjustment and enabling the device to operate at its maximum output power whenever possible.