Automotive Battery Mounting Structure with Hybrid Support
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Solution Overview
Problem
Existing automotive battery mounting structures fail to meet crash-regulation requirements as they are not stably secured, leading to potential damage and injury during collisions, as the leg brackets can collapse, causing the battery to hit the booster and move pedals inward, potentially harming the driver or passenger.
Innovation Solution
An automotive battery mounting structure that includes a battery tray connected to a side member with a transmission mount and a leg bracket, secured by fasteners, with restriction ribs to prevent leg movement and a simplified fixing bracket design, allowing the battery to pivot upward during collisions and reducing the risk of separation from the tray.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the battery is mounted using leg brackets in a cantilever manner, then interference with neighboring components is prevented, but the leg brackets collapse easily during collision causing the battery to hit the booster
Solution Approach 1:
The patent combines the battery tray mounting structure with both the leg bracket and transmission mount, creating a hybrid support system. The battery tray is secured to the side member through both the leg bracket and transmission mount simultaneously, distributing collision forces across multiple attachment points and preventing leg bracket collapse that would otherwise cause battery displacement and booster impact.
2Ease of manufacture
If the battery is secured to the battery tray with simple fastening, then manufacturing cost is reduced, but the battery is easily damaged or separated from the battery tray during collision
Solution Approach 1:
The patent applies different fastening strengths to different regions of the battery tray. Multiple fasteners are strategically positioned at critical locations including corners and edges of the battery tray, providing enhanced local reinforcement where collision forces are most likely to act. This ensures the battery remains securely attached during impact while maintaining overall manufacturing efficiency.
3Ease of operation
If the battery tray is positioned away from the side member, then assembly is simplified, but the battery cannot meet crash-regulation requirements and is not stably mounted
Solution Approach 1:
The patent introduces the transmission mount as an intermediary component between the battery tray and side member. This intermediary provides additional attachment points and structural support, enabling the battery tray to be positioned close to the side member for stability while maintaining assembly feasibility through the mediating role of the transmission mount in the mounting process.
Data Source
AI summary
An automotive battery mounting structure may include a battery tray connected to one of a pair of front side members disposed on a lower side of an engine compartment, and a battery secured to the battery tray. A transmission mount and a leg bracket may be coupled to the front side member, and the battery tray may be coupled to the transmission mount and the leg bracket by a plurality of fasteners.