Stacked Module Fixing Structure for Energy Storage

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Solution Overview

Problem

Conventional fixing methods for household energy storage systems are complex, making installation and maintenance inconvenient.

Innovation Solution

A module fixing structure that includes multiple modules stacked in a direction, with a first fixing member stretching across M modules and only two ends fixed to two modules, reducing the number of fixed connections and improving installation and maintenance convenience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional fixing methods are used to fix multiple stacked modules, then the system stability is ensured, but the installation and maintenance convenience deteriorates due to complex fixing procedures

Engineering Contradiction:
Improveinstallation and maintenance convenienceVSAvoidfixing method complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The fixing structure is segmented into a first fixing member that spans multiple modules and only two end fixing points. This segmentation allows the fixing structure to cover N modules while requiring fixes at only two locations, reducing the complexity of installation and maintenance operations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple fixing functions are merged into a single first fixing member that stretches across M modules. Instead of requiring separate fixing operations for each module pair, one fixing member performs the function of securing multiple modules simultaneously, improving operational convenience.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If multiple fixing members are used to fix each module pair, then the system stability is improved, but the number of fixing operations and time required increases

Engineering Contradiction:
Improvesystem stabilityVSAvoidinstallation and maintenance time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The first fixing member is designed with multi-functionality, serving to fix multiple module interfaces simultaneously. A single fixing member performs what would traditionally require multiple separate fixing operations, reducing the time required for installation and maintenance while maintaining system stability through its span across M modules.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The fixing approach transitions from a one-to-one fixing relationship (one fixing member per module pair) to a one-to-many relationship (one fixing member spanning multiple modules). This dimensional change in the fixing structure allows a single component to provide stability across multiple modules, reducing the total number of fixing operations required.

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

Data Source

PatentEP4333176B1Household energy storage system and module fixing structure thereof
Publication Date: 2025.02.12 SUNGROW ENERGY STORAGE TECH CO LTD
  • EP4333176B1 patent drawingFigure 1
  • EP4333176B1 patent drawingFigure 2
  • EP4333176B1 patent drawingFigure 3

AI summary

A household energy storage system and a module fixing structure thereof are provided. The module fixing structure of the household energy storage system includes multiple modules and at least one first fixing member. The modules are stacked in at least one stacking direction; the first fixing member is configured to stretch across M modules in a stacking direction in which N modules are stacked, and only two ends of the first fixing member are fixed to two of the modules, respectively; N and M each is a positive integer, N is greater than or equal to 3 and M is less than or equal to N-2. In the above module fixing structure, only two modules of the stacked N modules are fixedly connected to the same first fixing member, and the M modules are not fixedly connected to the first fixing member, which reduces the number of fixed connections. Accordingly, the first fixing member stretches across the M modules in the stacking direction in which N modules are stacked, which reduces the number of the first fixing member and reducing the number of fixed connections. Therefore, with the above module fixing structure, the convenience of installation and maintenance is improved.