Battery Support Frame Layout for Rigidity and Packaging Space
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Solution Overview
Problem
Existing vehicle frame structures face challenges in providing sufficient space and rigidity for battery and motor disposition, leading to potential strength limitations.
Innovation Solution
A battery support structure comprising a pair of frames separated in the vehicle width direction, with mounting tables, first and second cross members, and a closed cross-sectional shape to enhance rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the frame structure is designed to accommodate battery and motor disposition space, then the disposition space is satisfied, but the strength and supporting rigidity of the vehicle frame may be compromised
Solution Approach 1:
The frame structure is segmented into multiple functional components: left and right side frames, multiple cross members (first and second), and mounting tables. This segmentation allows each component to be optimized for specific functions - the side frames provide longitudinal support, cross members provide transverse reinforcement, and mounting tables provide dedicated battery support surfaces, thereby maintaining overall strength while creating adequate disposition space.
Solution Approach 2:
The patent introduces a vertical dimension to the frame structure by positioning the second cross member above the first cross member, and attaching mounting tables at elevated positions on the side frames. This three-dimensional arrangement creates additional disposition space for battery and motor without compromising the structural integrity of the lower frame, effectively resolving the contradiction between space and strength.
2Area of stationary object
If the frame structure is modified to increase battery disposition space, then the space requirement is met, but the battery supporting rigidity decreases
Solution Approach 1:
The patent merges the frame structure with dedicated battery support elements by integrating mounting tables with the side frames and cross members. The mounting tables are structurally connected to the frame system, forming a unified load-bearing structure that provides both adequate battery disposition space and high supporting rigidity, eliminating the need to trade one for the other.
Solution Approach 2:
The mounting tables serve as intermediary elements between the frame structure and the battery. These tables transfer battery loads to the robust frame structure while providing a dedicated, rigid mounting surface. This intermediary structure enables adequate battery disposition space without compromising supporting rigidity, as the mounting tables are specifically designed to handle battery weights and forces.
Data Source
AI summary
A battery support structure supporting a driving battery that supplies electric power to drive a motor. The battery support structure includes the following: a pair of frames disposed to be separated from each other in a vehicle width direction of a vehicle; a mounting table on which the battery is placed and which is attached on the frame on an outer side in the vehicle width direction; a first cross member mounted between the pair of frames at a predetermined position in the vehicle front-rear direction where the mounting table is attached; and a second cross member disposed at a position higher than that of the first cross member and mounted between the pair of frames.