Integrated Combiner Cabinet Layout for Battery Pack Control
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Solution Overview
Problem
Existing energy storage systems require separate electric control cabinets for current/voltage control, leading to increased space occupation and limited functionality of combiner cabinets.
Innovation Solution
A combiner cabinet design that integrates a cabinet body, door, and electrical component assembly, including positive and negative electrode parts, control parts, and a compact layout along the width direction, allowing for direct connection to external high-voltage boxes and battery packs, reducing the need for additional cabinets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate electric control cabinets are used for current/voltage control, then control functionality is achieved, but space occupation increases
Solution Approach 1:
The patent combines the combiner cabinet and electric control cabinet into a single integrated unit. The control components (contactors, relays, control circuits) are housed within the same cabinet structure as the combiner components (fuses, circuit breakers, busbars), eliminating the need for separate control cabinets and reducing overall space occupation while maintaining full control functionality.
Solution Approach 2:
The integrated cabinet serves multiple functions simultaneously: it acts as both a combiner cabinet for merging DC outputs from multiple battery packs and an electric control cabinet for voltage/current control and monitoring. This multi-functionality is achieved by incorporating both power handling components and control components within the same structural unit.
2Adaptability or versatility
If separate electric control cabinets are used, then control capability is maintained, but device complexity increases
Solution Approach 1:
The patent merges previously separate control systems into the combiner cabinet structure. Control circuits, contactors for switching between battery packs, and monitoring devices are integrated within the same cabinet, reducing the number of discrete devices from two separate cabinets to one unified system.
3Ease of manufacture
If combiner cabinet is designed with single function, then manufacturing is simplified, but functionality is limited
Solution Approach 1:
The combiner cabinet is designed to perform multiple functions: DC output convergence from multiple battery packs, voltage and current control through integrated contactors and relays, circuit protection via fuses and circuit breakers, and real-time monitoring of battery pack states. This multi-functional design maintains manufacturing efficiency while significantly expanding operational capabilities.
Data Source
AI summary
A combiner cabinet and an energy storage system are provided by the present disclosure. The combiner cabinet includes a cabinet body and an electrical component assembly mounted inside the cabinet body. The electrical component assembly includes a positive electrode part, a negative electrode part, and a control part. The positive electrode part is configured to be electrically connected to a positive output terminal of an external high-voltage box and a positive electrode of a battery pack. The negative electrode part is configured to be electrically connected to a negative output terminal of the external high-voltage box and a negative electrode of the battery pack. The control part is configured to be electrically connected to a communication signal terminal of the external high-voltage box. The control part and the positive electrode part are arranged along a length direction or a width direction of the combiner cabinet.