Stackable Battery Rack Fixing Structure for Dense ESS Installation
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Solution Overview
Problem
The installation of heavy-duty battery racks is challenging due to difficulties in precise positioning and space utilization, leading to uneven arrangements and reduced energy density in energy storage systems.
Innovation Solution
A battery rack design that stacks multiple cases in the up-down direction, with lower cases fixed to the ground and upper cases bolt-coupled to lower ones, utilizing upper space effectively and facilitating easy fixing between racks through grooves and bolts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If battery rack cases are stacked in the up-down direction with upper cases bolt-coupled to lower ones, then space utilization and energy density are improved, but installation complexity and fixing precision requirements increase
Solution Approach 1:
The battery rack system is divided into multiple independent battery rack cases that can be stacked vertically. Each case is a self-contained unit that can be fixed to the ground or to other cases through standardized fixing units, allowing modular assembly that improves space utilization while maintaining manageable installation complexity through repetition of standardized components.
Solution Approach 2:
The patent transitions from horizontal arrangement to vertical stacking in the up-down direction, utilizing the vertical dimension to increase space utilization and energy density. Multiple battery rack cases are arranged vertically with fixing units connecting lower cases to the ground and upper cases to lower ones, effectively transforming the spatial configuration to maximize available space.
2Ease of operation
If heavy load battery racks are transported using transportation equipment, then transport capability is improved, but positioning precision and arrangement evenness deteriorate
Solution Approach 1:
Fixing units are pre-installed on the battery rack cases before transport and installation. These fixing units include ground fixing units that can be预先 fixed to the installation site, and case-to-case fixing units that enable precise alignment and positioning when stacking, thereby maintaining positioning precision even after transportation.
Solution Approach 2:
The fixing units act as intermediary components between the battery rack cases and the ground or between stacked cases. They provide standardized connection interfaces that facilitate both transport handling and precise final positioning, serving as mediators that reconcile the needs of mobile transport with stationary precision installation.
3Area of stationary object
If battery racks are installed in narrow sites, then space utilization is improved, but installation difficulty and accessibility worsen
Solution Approach 1:
The system is segmented into modular battery rack cases of standardized dimensions that can be stacked vertically. This segmentation allows installation in narrow spaces where horizontal expansion is limited, as the modular units can be arranged vertically to maximize space utilization while maintaining accessibility for installation and maintenance operations.
Data Source
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AI summary
Provided is a battery rack that is easy to install, an energy storage system, and a power generation system. The battery rack includes a plurality of battery modules; and a rack case configured to accommodate the plurality of battery modules and mount another rack case above, wherein the rack case includes a fixing unit provided on a lower end portion of the rack case, wherein the fixing unit includes a main body part of a plate shape, wherein the main body part includes a fixing groove formed to be recessed from an edge of the main body part, and wherein the rack case includes at least one bolt provided on an upper end portion of the rack case and configured to be inserted into the fixing groove included in a lower end of the other rack case.