Battery Pack BEM Bracket Layout for High-Density Module Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge of integrating a battery energy management system (BEM) into large-capacity battery packs without significant alteration to the conventional structure, particularly in electric vehicles, where space is limited.
Innovation Solution
A battery pack design incorporating a tray with a mount plate, front and rear frames, side covers, and module partition walls, which accommodates battery modules and allows for the installation of a BEM assembly using a BEM bracket fastened to these structures, minimizing space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a plurality of battery modules are accommodated in a narrow inner space to improve energy density, then energy density is improved, but it becomes difficult to secure space for fixing a battery energy management system (BEM)
Solution Approach 1:
The battery pack is divided into multiple receiving spaces by partition walls, with each space accommodating battery modules. The BEM is installed in a dedicated receiving space formed between the rear frame and the module partition wall, segmenting the internal space to accommodate both battery modules and BEM separately.
Solution Approach 2:
The BEM bracket is designed to extend in the width direction and is fastened to structures located in the longitudinal direction (module partition wall and rear frame), utilizing three-dimensional space arrangement to secure the BEM without occupying additional longitudinal space that would reduce energy density.
2Reliability
If the BEM bracket is fastened to the module partition wall and rear frame, then the BEM is securely fixed, but the structural complexity increases
Solution Approach 1:
The module partition wall and rear frame serve dual functions: they provide structural support for accommodating battery modules in receiving spaces and simultaneously serve as fastening structures for the BEM bracket, eliminating the need for separate BEM mounting structures.
Solution Approach 2:
The BEM bracket is integrated with the existing tray structure by fastening it to the module partition wall and rear frame, merging the BEM mounting function with the structural components already present in the battery pack.
Data Source
AI summary
A battery pack according to an embodiment of the present disclosure includes: a plurality of battery modules; a tray including a mount plate on which the plurality of battery modules are seated, a front frame provided on an end portion in a longitudinal direction of the mount plate, and a rear frame provided on the other end portion in the longitudinal direction of the mount plate; a pair of side covers covering both end portions in a width direction of the tray; at least one module partition wall parallel to the front frame and the rear frame, and located between adjacent battery modules; and a battery energy management system (BEM) assembly including a BEM bracket having one end portion fastened to the at least one module partition wall and the other end portion fastened to the rear frame, and a BEM mounted on the BEM bracket.