Cross-Frame Battery Pack Structure for Vibration Suppression
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Solution Overview
Problem
Existing vehicle-mounted battery packs face challenges in suppressing battery vibration without increasing weight, as they require strengthened connection members to account for vibration, leading to increased weight and potential structural inefficiencies.
Innovation Solution
A vehicle-mounted battery pack design featuring a battery case with vertically disposed batteries, a horizontal frame between battery rows, and a vertical frame at both ends, forming a cross shape, which integrates the horizontal and vertical frames to securely fix the battery module without additional connection members, thereby reducing weight while maintaining structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the connection member is strengthened to suppress battery vibration, then the vibration suppression capability is improved, but the weight increases
Solution Approach 1:
The patent combines the horizontal frame and vertical frame into an integrated cross-shaped structure that serves multiple functions simultaneously. The horizontal frame connects batteries within rows, the vertical frame connects battery rows, and together they form a unified support structure that suppresses vibration without requiring additional strengthened connection members.
Solution Approach 2:
The patent transitions from a single-dimensional connection approach to a two-dimensional cross-shaped frame structure. By adding the vertical dimension to the horizontal frame, the structure gains enhanced rigidity and vibration suppression capability without proportionally increasing weight, as the frames share load paths and structural functions.
2Strength
If additional connection members are added to secure the battery module, then the structural integrity is improved, but the device complexity increases
Solution Approach 1:
The horizontal and vertical frames serve multiple functions: they provide structural support for the battery module, suppress vibration, connect multiple batteries together, and form an integrated mounting structure. This multi-functionality eliminates the need for separate dedicated connection members for each function.
Solution Approach 2:
The patent merges the functions of multiple connection members into a single integrated cross-shaped frame structure. The horizontal and vertical frames work together as a unified system, replacing what would otherwise require multiple separate connection components, thereby reducing overall device complexity.
Data Source
AI summary
Provided is a vehicle-mounted battery pack. A vehicle-mounted battery pack includes: a battery case, a battery module, an upper cross member, and an upper deck. In the battery module, a first battery row and a second battery row, in which a plurality of vertically placed batteries are disposed in a case horizontal direction, are disposed in a pair in a case vertical direction. The upper cross member is disposed between the first battery row and the second battery row toward the case horizontal direction, and is fixed to a first stepped portion and a second stepped portion of the battery. The upper deck is disposed in the case vertical direction and is fixed to a front end portion and a rear end portion of the battery module.