Electricity Storage Module Elastic Protrusion Backlash Control
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Solution Overview
Problem
Existing electricity storage modules face challenges in preventing backlash in the vertical and width directions of electricity storage cells, which can lead to misalignment and reduced stability, especially under vibrations or deformations.
Innovation Solution
The module employs a fastening frame with elastic deformation protrusions on resin holders that press against the frame, eliminating the need for dedicated springs, thereby securely holding cells in place while minimizing size and weight, and allowing for adjustable holding force through material and shape variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If plate strings are welded to the lower flange to urge electricity storage cells upward, then backlash in the vertical direction is prevented, but the device complexity increases and weight increases
Solution Approach 1:
The invention extracts the elastic urging function from the complex welded plate string structure and concentrates it into simple protrusions formed directly on the holders or resin members. This eliminates the need for separate elastic components while maintaining the backlash prevention function.
Solution Approach 2:
The holders or resin members serve dual functions: they provide structural support and simultaneously provide elastic urging through their protrusions. This self-service approach eliminates the need for dedicated elastic components, reducing device complexity.
2Reliability
If dedicated springs are used to hold electricity storage cells, then backlash is prevented, but the device complexity and weight increase
Solution Approach 1:
The invention merges the holding function and elastic urging function into a single integrated structure. The protrusions on holders or resin members simultaneously provide mechanical support and elastic recovery, eliminating the need for separate spring components and reducing overall weight.
Solution Approach 2:
The elastic function is extracted from dedicated spring components and embedded directly into the holders or resin members through elastic deformable protrusions. This integration eliminates unnecessary components and reduces the overall weight of the electricity storage module.
3Stability of the object's composition
If a rigid fastening structure is used to prevent backlash, then stability is improved, but the ability to accommodate deformation is reduced
Solution Approach 1:
The invention introduces dynamic elasticity into the fastening structure through protrusions capable of elastic deformation. These protrusions can dynamically adjust to vibrations and deformations while maintaining stable cell positioning, combining rigidity for alignment with flexibility for adaptation.
Solution Approach 2:
The protrusions are designed with specific elastic properties that allow them to change their deformation parameters in response to external forces. This enables the structure to accommodate vibrations and deformations while maintaining stable cell alignment, balancing rigidity and adaptability.
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 prevents backlash in both vertical and width directions, enhancing the module's stability and rigidity without additional components, allowing for size and weight reduction while maintaining secure cell alignment.
Implementation Method 1
The protrusion is capable of elastic deformation and is to be pressed against the fastening frame to hold the electricity storage cells in the width direction or a vertical direction
Data Source
AI summary
An electricity storage module includes a plurality of electricity storage cells, a plurality of holders, first and second end plates, and a fastening frame. The plurality of holders are stacked in a stacking direction together with the plurality of electricity storage cells to provide a stack. The fastening frame is to fasten the first and second end plates in the stacking direction. The plurality of holders or at least one resin member disposed between the plurality of electricity storage cells and the fastening frame each has a protrusion that protrudes outward in a width direction of the plurality of holders or the at least one resin member. The protrusion is capable of elastic deformation and is to be pressed against the fastening frame to hold the plurality of electricity storage cells in the width direction or a vertical direction.