Modular Portable Energy Storage with Stackable Power Expansion
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Solution Overview
Problem
Existing energy storage and power supply devices are limited in their expandability and functionality, unable to adapt to multiple application scenarios and lacking portability.
Innovation Solution
An expandable portable multi-functional energy storage and power supply device is developed, featuring modular design with standardized interfaces, allowing for the integration of various functional modules such as battery, adapter, and inverter modules, and enabling series-parallel connections for expandability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing energy storage and power supply devices use a fixed cabinet structure with limited modules, then the device structure is simple and easy to manufacture, but the device lacks expandability and cannot adapt to multiple application scenarios
Solution Approach 1:
The energy storage and power supply device is divided into multiple independent functional modules including battery modules, control modules, and expansion modules. Each module can be independently manufactured, tested, and replaced. The cabinet body is segmented into multiple compartments to accommodate different module types, enabling flexible configuration and expansion without requiring complete device replacement.
Solution Approach 2:
The device employs universal standardized interfaces and communication protocols that allow different functional modules to be interconnected and work together. The same cabinet structure and control system can support various module combinations for different application scenarios such as electric vehicle charging, portable power supply, or grid energy storage, making the device multi-functional and highly adaptable.
2Ease of operation
If energy storage and power supply devices integrate multiple functions internally, then external connections to mains and inverters are eliminated improving portability, but the internal structure becomes more complex
Solution Approach 1:
The device integrates the battery pack, inverter, control system, and multiple output interfaces into a single self-contained unit. The battery module directly connects to the inverter module through standardized internal interfaces, eliminating the need for external mains connection. Multiple output ports including AC outlets, USB ports, and DC terminals are integrated into the cabinet, allowing the device to function as a complete power supply system without external connections.
Solution Approach 2:
The control module is nested within the cabinet body, with the inverter module nested within the same structure. The battery module serves as the core nested element that provides power to all other components. This nested arrangement allows compact integration of multiple functions while maintaining modular replaceability of each nested component.
3Adaptability or versatility
If the device uses standardized interfaces for module integration, then expandability and adaptability are improved, but the manufacturing precision requirements increase
Solution Approach 1:
The standardized interfaces are designed with specific local characteristics including keying features, positioning pins, and tolerance zones tailored to each connection point. The electrical contacts have precise dimensional specifications and material properties optimized for reliable connection. These localized quality enhancements at critical interface points ensure high precision connections without requiring the entire device to meet stringent manufacturing tolerances.
Solution Approach 2:
The interface design includes built-in compensation mechanisms such as elastic contacts, adjustable positioning elements, and tolerance buffers that accommodate minor manufacturing variations. These cushioning features are incorporated into the interface structure beforehand to prevent connection failures due to precision deviations, ensuring reliable module integration even when manufacturing precision varies within acceptable ranges.
Data Source
AI summary
An expandable portable multi-functional energy storage and power supply device includes one or more energy storage and power supply units, wherein adjacent energy storage and power supply units are stacked with one on top of another and are electrically connected to each other, the energy storage unit includes a unit main body, the unit main body includes one or more module expansion bins, a functional module is provided in the module expansion bin, the unit main body is provided with a unit control board at a position corresponding to the module expansion bin, a standard interface terminal is provided on the unit control board, a module control board is provided in the functional module, a standard interface adapted to the standard interface terminal is provided on the module control board, and the standard interface terminal is electrically connected to the standard interface.