Stacked Battery Housing Structure for Compact ESS Installation
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Solution Overview
Problem
Existing energy storage systems require large installation areas due to their standard container sizes, and stacking them leads to structural instability, vulnerability to earthquakes and wind loads, and increased manufacturing costs, with potential explosion risks from deflagration outlets.
Innovation Solution
The system comprises a first housing with a first inner space and a second housing stacked on top, both having standardized sizes for easy transport, with interconnected inner spaces, anti-sag brackets for stability, and components like pressure discharge plates and heat exchange units for safety and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If standard container-sized energy storage systems are stacked, then installation area is reduced, but structural stability deteriorates due to vulnerability to earthquakes and wind loads
Solution Approach 1:
The energy storage system is divided into multiple independent housing units (first housing, second housing, third housing) that can be stacked vertically. Each housing contains separate battery packs and can function independently, allowing the system to achieve high capacity in a compact area while maintaining structural stability through modular design.
Solution Approach 2:
Multiple housing units are nested vertically in a stack configuration, with the second housing placed on top of the first housing, and the third housing on top of the second housing. This nesting approach reduces the installation area while maintaining structural integrity through proper stacking design.
2Stability of the object's composition
If energy storage systems are installed one by one in a single layer, then structural stability is maintained, but installation area increases
Solution Approach 1:
The system transitions from a single-layer horizontal arrangement to a multi-layer vertical stacking configuration. By utilizing the vertical dimension, the system reduces the required installation area while maintaining structural stability through proper housing design and stacking arrangements.
3Stability of the object's composition
If separate support structures are used for stacking, then structural stability is improved, but manufacturing cost increases
Solution Approach 1:
The housing structure itself is designed to provide both containment and support functions. The housings are directly stacked without requiring separate support structures, merging the structural support function into the housing design and eliminating additional manufacturing costs for separate support frameworks.
Solution Approach 2:
The housing units serve multiple functions: they contain the battery packs, provide structural support for stacking, and offer protection. This multi-functionality eliminates the need for separate support structures, reducing manufacturing costs while maintaining stability.
4Ease of manufacture
If housings are directly stacked, then manufacturing cost is reduced, but reliability deteriorates due to explosion transmission risk
Solution Approach 1:
The deflagration outlets are positioned on the upper plates of the housings, extracting the hazard away from the stacking interface. This allows direct stacking of housings without requiring complex isolation structures, reducing manufacturing costs while maintaining safety by directing explosions away from adjacent units.
Solution Approach 2:
The deflagration outlets convert the harmful explosion pressure into a controlled discharge mechanism that protects the stacking structure. By designing outlets on the upper plates, the system uses the explosion force to vent safely outward rather than transmitting it to adjacent stacked housings.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration allows for high-capacity energy storage in a compact area, with stable stacking, efficient heat dissipation, and safe pressure discharge, reducing manufacturing and transport costs while enhancing structural integrity.
Implementation Method 1
a heat exchange unit supplying a fluid at a predetermined temperature to the first and second housings and receiving the fluid that has passed through the inner spaces of the first and second housings to perform heat exchange
Implementation Method 2
a pressure discharge plate provided on an upper surface of the second housing, and torn open by pressure when the pressure of the first inner space and the second inner space exceeds a predetermined level to discharge the pressure to the outside
Data Source
Figure 1
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AI summary
The present disclosure is a housing stacking energy storage system. In the present disclosure, a first housing 10 and a second housing 20 having a predetermined size are stacked, and a rack 30 is installed in a first inner space 11 of the first housing 10 and a second inner space 21 of the second housing 20 to mount a plurality of battery packs 32. The first inner space 11 and the second inner space 21 communicate with each other to form one space, and a control unit 46, a fire extinguishing system 47 and a spray system 48 are installed therein. According to the present disclosure, it is possible to firmly install the energy storage system having a relatively large capacity in a specific installation area.