Combiner Cabinet Multi-Layer Layout for Shorter Wiring Paths

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Solution Overview

Problem

In existing combiner cabinets, the long distances between electrical elements at the ends result in lengthy wiring requirements, making operations inconvenient for workers.

Innovation Solution

The combiner cabinet design arranges the positive and negative electrode portions in a first direction, with a compact layout using multiple shelves and integrated circuit breakers and fuses, reducing wiring distances and enhancing safety through dual circuit breakers for each electrode portion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If electrical elements are arranged in one layer along the length direction of the combiner cabinet, then the cabinet can accommodate all necessary electrical elements, but the distances between electrical elements at two ends become long, resulting in lengthy wiring requirements and inconvenient operation

Engineering Contradiction:
Improveconvenience of worker operationVSAvoidwiring distance between electrical elements
Core Design Contradiction:
Ease of operationVSLength of stationary object

Solution Approach 1:

The patent transitions from a one-dimensional linear arrangement of electrical elements to a two-dimensional multi-layer arrangement. Electrical elements are distributed across multiple layers along the width direction of the cabinet, allowing workers to access elements on different layers simultaneously and reducing the maximum wiring distance between any two elements from the full length of the cabinet to much shorter distances within each layer or between adjacent layers.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent divides the single-layer arrangement into multiple separate layers, segmenting the electrical elements into different groups. This segmentation allows each layer to be independently accessed and wired, reducing the overall wiring complexity and distance. Each layer can be treated as a separate working zone, improving operational convenience.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If a large number of electrical elements are arranged in one layer, then all electrical functions can be integrated, but the wiring distance increases and operation becomes inconvenient

Engineering Contradiction:
Improveintegration of electrical functionsVSAvoidconvenience of worker operation
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent maintains full integration of electrical functions by distributing electrical elements across multiple layers rather than consolidating them in a single layer. This multi-layer arrangement preserves all necessary electrical connections and functions while organizing them in a three-dimensional space that improves accessibility and reduces wiring distances, thereby enhancing operational convenience without sacrificing functional integration.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP4687201A1Combiner cabinet and energy storage system
Publication Date: 2026.02.04 EVE ENERGY STORAGE CO LTD
  • EP4687201A1 patent drawingFigure 1
  • EP4687201A1 patent drawingFigure 2
  • EP4687201A1 patent drawingFigure 3

AI summary

A combiner cabinet and an energy storage system are provided. The combiner cabinet includes a cabinet body, a cabinet door, at least one electrical element assembly, a mounting chamber is formed in the cabinet body, the cabinet door is connected to the cabinet body, the cabinet body includes a first side wall arranged opposite to the cabinet door, and the cabinet door and the first side wall are arranged along a first direction; the electrical element assembly is, arranged in the mounting chamber, the electrical element assembly includes a positive electrode portion and a negative electrode portion arranged at intervals, the positive electrode portion and the negative electrode portion are arranged in the first direction.