Battery Pack Guide Member for Rigidity and Assembly
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Solution Overview
Problem
Conventional battery packs face challenges in achieving improved rigidity while reducing overall volume and weight, leading to vulnerability to external impacts and inefficient assembly of battery modules.
Innovation Solution
A battery pack design incorporating a guide member with a telescoping structure and insert holes in the battery modules, allowing for easy assembly and enhanced rigidity through the use of a guide rail and module fixing member, which adjusts length to secure the modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a module cover and inner frame are added to improve rigidity, then the battery pack becomes larger and heavier
Solution Approach 1:
The invention removes the module cover from the battery pack structure, extracting only the essential components (pack cover and inner frame) needed to achieve the required rigidity and protection, thereby reducing overall weight and volume while maintaining structural integrity
Solution Approach 2:
The battery pack is divided into functional segments (pack cover, inner frame, guide member) where each component serves a specific purpose. The inner frame provides structural rigidity without requiring a separate module cover, achieving weight reduction through optimized segmentation of structural functions
2Weight of stationary object
If the module cover is removed to reduce weight and volume, then the rigidity is reduced and battery cells become vulnerable to external impact
Solution Approach 1:
The inner frame is designed with localized reinforcement at critical positions where battery cells require protection. Instead of uniformly strengthening the entire structure with a module cover, the rigidity is enhanced locally at impact-prone areas, maintaining weight efficiency while providing necessary protection
Solution Approach 2:
The pack cover and inner frame are designed as composite structural elements that provide high rigidity-to-weight ratio. The guide member coupled to battery modules adds localized structural support without significant weight increase, creating a composite protection system that replaces the removed module cover
3Productivity
If conventional battery pack structures are used, then assembly of battery modules is complex and time-consuming
Solution Approach 1:
The guide member is pre-coupled to each battery module before assembly, creating a ready-to-install configuration. This preliminary action simplifies the final assembly process by providing built-in alignment and positioning features that guide rapid installation without requiring complex adjustment procedures
Solution Approach 2:
The guide member acts as an intermediary component that facilitates the assembly process between battery modules. It provides a simple coupling mechanism that enables easy alignment and connection, reducing assembly complexity and time while maintaining structural integrity
Data Source
AI summary
Disclosed is a battery pack. The battery pack includes: a plurality of battery modules each having a plurality of battery cells therein; and a guide member coupled to each of the battery modules, the guide member being configured to guide movement of the battery modules when the plurality of battery modules are assembled adjacent to one another.