UAV Multi-Battery Pack Architecture for Longer Endurance
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Solution Overview
Problem
Unmanned aerial vehicles (UAVs) have short endurance due to limited power supply volume from single batteries, which restricts their operational time.
Innovation Solution
The design incorporates a battery pack with multiple battery blocks connected in series or parallel, a battery circuit board, and a functional module, allowing for increased battery capacity and efficient power distribution to extend the UAV's endurance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a single battery is used to power the unmanned aerial vehicle, then the device complexity is reduced, but the endurance is significantly limited due to small power supply volume
Solution Approach 1:
The power supply system is segmented into multiple independent battery blocks (first battery block, second battery block, etc.) instead of using a single battery. Each battery block can be independently managed and connected to the power distribution circuit board, allowing the system to achieve extended endurance while maintaining manageable complexity through modular architecture
Solution Approach 2:
The power distribution circuit board serves multiple functions: it distributes power from multiple battery blocks to various functional modules, monitors battery status, and manages charging/discharging operations. This multi-functional component consolidates control logic, reducing overall system complexity despite the increased number of battery blocks
2Use of energy by moving object
If the battery capacity is increased to extend endurance, then the energy storage is improved, but the weight of the power supply system increases
Solution Approach 1:
The total battery capacity is achieved through segmentation into multiple battery blocks rather than using one large battery. This allows for more flexible weight distribution throughout the UAV structure, potentially improving balance and reducing the impact of increased total weight on performance
Solution Approach 2:
The system enables dynamic adjustment of power supply parameters through the power distribution circuit board, which can selectively activate or deactivate individual battery blocks based on operational requirements. This allows the UAV to optimize its weight-to-capacity ratio by using only the necessary battery capacity for each specific mission duration
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
This configuration increases the battery capacity of UAVs, significantly lengthening their endurance by allowing multiple battery blocks to supply power simultaneously, addressing the limitations of single battery-powered UAVs.
Implementation Method 1
a battery pack, including at least two battery blocks and mounted inside the battery accommodation cavity; a battery circuit board, electrically connected to the battery blocks in the battery pack; and a functional module, electrically connected to the battery circuit board, the battery blocks in the battery pack supplying power to the functional module via the battery circuit board at the same time
Data Source
AI summary
An unmanned aerial vehicle includes a fuselage, a battery accommodation cavity, a battery pack, a battery circuit board, and a functional module. The battery accommodation cavity is disposed on the fuselage. The battery pack includes at least two battery blocks which are mounted inside the battery accommodation cavity. The battery circuit board is electrically connected to the battery blocks in the battery pack. The functional module is electrically connected to the battery circuit board, and the battery blocks in the battery pack supply power to the functional module via the battery circuit board at the same time.