Modular Power Bank with Pluggable Battery Modules
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Solution Overview
Problem
Current power banks have a fixed rated capacity, making them inconvenient for users who need varying levels of power, as a high-capacity power bank is heavy and cumbersome, while a low-capacity one may not suffice for prolonged use.
Innovation Solution
A modular power bank design featuring a station with slots for pluggable battery modules, allowing users to add or remove modules as needed, with a charging-discharging control circuit that connects modules in parallel for flexible power supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a power bank with large capacity is used, then the power supply duration is extended, but the weight increases causing inconvenience
Solution Approach 1:
The power bank is divided into a station and multiple detachable battery modules. Each module contains a rechargeable battery and can be independently added or removed from the station's slots, allowing users to segment the total capacity into manageable units rather than carrying a single large heavy unit.
Solution Approach 2:
The power bank configuration is made dynamic and adjustable. Users can change the number of battery modules in the station based on their specific power needs for different occasions, transforming the fixed capacity design into a flexible system where capacity can be adjusted in real-time.
2Device complexity
If a power bank with fixed capacity is used, then the device structure is simple, but the adaptability to different usage scenarios is reduced
Solution Approach 1:
The station is designed with universal slots that can accommodate different numbers of battery modules (one, two, or more). The charging-discharging control circuit universally manages power flow whether one or multiple modules are present, making the system multi-functional for different power requirements without requiring different devices.
Solution Approach 2:
The system allows changing the capacity parameter by adding or removing battery modules. The control circuit detects the number of modules and adjusts charging/discharging parameters accordingly, enabling the same physical device to operate with different effective capacities based on user needs.
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 users to customize power capacity according to their needs, providing a lightweight and convenient power solution by allowing the addition or removal of battery modules, ensuring adequate power without excessive weight.
Implementation Method 1
The rechargeable battery is positioned in the cylindrical housing and electrically connected to the control circuit
Implementation Method 2
the charging-discharging control circuit receives electric power from the power supply via the main charging port and charges rechargeable batteries of the battery modules
Data Source
AI summary
A power bank has a station and a plurality of battery modules. Each of the battery modules can be positioned in a corresponding slot of the station in a pluggable way and is electrically connected to a charging-discharging control circuit of the station. When a main charging port of the station is electrically connected to a power supply, the charging-discharging control circuit receives electric power from the power supply via the main charging port and uses the received electric power to charge rechargeable batteries of the battery modules. When a main discharging port of the station is electrically connected to an electronic apparatus, the charging-discharging control circuit receives electric power from the rechargeable batteries of the battery modules so as to provide electric power to the electronic apparatus.


