Battery Pack Module Fixing Structure to Prevent Twisting and Loosening
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Solution Overview
Problem
Existing battery pack structures are complicated due to the need for numerous parts, leading to issues with distance between adjacent packs and potential twisting or loosening.
Innovation Solution
A battery pack module design utilizing first and second fitting parts with fixing members, including first and second pins, to connect adjacent battery packs, minimizing distance and preventing twisting or loosening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional battery pack structures use multiple support parts (upper frame, lower frame, side support, end plate), then the battery module structure becomes complicated, but the support and stability are improved
Solution Approach 1:
The patent combines multiple support functions into a single integrated fixing member that simultaneously provides upper frame support, lower frame support, side support, and end plate support. This single fixing member replaces the traditional multiple separate support parts, simplifying the overall structure while maintaining the necessary stability and support functions for the battery module.
Solution Approach 2:
The fixing member is designed with multi-functionality, serving as both a support structure and a connection element. It integrates the functions of upper frame, lower frame, side support, and end plate into one component that can be universally applied to secure the battery module, reducing the total number of parts needed.
2Ease of operation
If battery packs are arranged with larger spacing for accessibility and maintenance, then ease of operation is improved, but the distance between adjacent battery packs increases
Solution Approach 1:
The fixing member is segmented into multiple functional regions including upper frame engagement, lower frame engagement, side support sections, and end plate connection points. This segmentation allows the single component to provide distributed support and accessibility points throughout the battery pack structure, maintaining ease of operation while minimizing overall pack distance.
3Reliability
If traditional bolting methods are used to connect bus bar and bus plate, then electrical connection is achieved, but twisting or loosening may occur over time
Solution Approach 1:
The fixing member incorporates self-service features including integrated locking mechanisms and anti-loosening designs that automatically maintain connection integrity without requiring external intervention. The structure includes built-in features that prevent twisting and loosening through its geometric design and material properties, ensuring long-term connection stability.
Data Source
AI summary
A battery pack module related to one example of the present invention comprises a first battery pack including a plurality of first fitting parts, a second battery pack including a plurality of second fitting parts and disposed to be adjacent to the first battery pack, and a plurality of fixing members coupled together to the first and second fitting parts to connect the first and second battery packs, wherein each fixing member comprises two first pins, in which some regions are fixed to the first fitting parts of the first battery pack and other regions are each fit-coupled to the second fitting parts of the second battery pack, and a second pin connecting the two first pins.