Energy Storage Stack Venting Layout Without Housing Weakening
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Solution Overview
Problem
Existing energy storage devices with numerous inlet holes in the housing case for gas discharge compromise the rigidity of the housing case.
Innovation Solution
The configuration includes a housing case with a case-side discharge valve and a clearance between energy storage stacks to discharge gas externally, minimizing the need for numerous inlet holes and maintaining rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large number of inlet holes are provided in the bottom wall or side wall of the housing case for gas discharge, then the gas discharge function is improved, but the rigidity of the housing case decreases
Solution Approach 1:
The patent extracts the gas discharge function from the housing case structure by providing a dedicated discharge path through the clearance between energy storage stacks. This separates the gas discharge function from the housing case walls, eliminating the need for multiple inlet holes while maintaining structural integrity.
Solution Approach 2:
The clearance between energy storage stacks serves as an intermediary space that facilitates gas discharge without requiring holes in the housing case. Gas flows through this intermediate clearance region to reach the discharge outlet, solving the contradiction between discharge efficiency and structural rigidity.
2Productivity
If numerous inlet holes are formed in the housing case for gas introduction, then the gas discharge efficiency is improved, but the manufacturing cost and structural complexity increase
Solution Approach 1:
The patent merges the gas discharge function with the existing clearance space between energy storage stacks. By utilizing the natural gap between components for gas flow, the design eliminates the need for separate discharge channels and multiple holes, simplifying manufacturing while maintaining discharge efficiency.
Solution Approach 2:
The clearance between energy storage stacks serves multiple functions: it provides thermal management space, electrical connection space, and gas discharge pathway. This multi-functionality eliminates the need for dedicated discharge structures, reducing manufacturing complexity and cost.
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 effectively discharges gas while preserving the housing case's rigidity, reducing manufacturing costs and minimizing heating of the energy storage stacks.
Implementation Method 1
a case-side discharge valve configured to discharge a gas discharged into the housing case
Implementation Method 2
A space configured to allow the gas discharged from the first energy storage stack or the gas discharged from the second energy storage stack to flow in the space is provided in the clearance
Data Source
AI summary
An energy storage device includes a first energy storage stack and a second energy storage stack, an electrical device, and a housing case, and the housing case is provided with a case-side discharge valve capable of discharging the gas discharged into the housing case, the first energy storage stack and the second energy storage stack are arranged side by side at intervals in the first direction, the electrical device is arranged in a clearance between the first energy storage stack and the second energy storage stack, and a space capable of flowing the gas discharged from the first energy storage stack or the gas discharged from the second energy storage stack is provided in a clearance between the first energy storage stack and the second energy storage stack.