Battery Mounting Structure Sealing Member Gap Noise
Solution Overview
Problem
In battery-equipped vehicles, noise intrusion into the vehicle cabin from below the floor pan is not effectively moderated due to uncovered regions around the battery unit, leading to inadequate noise isolation.
Innovation Solution
A battery mounting structure that includes a battery pack mounted below the floor pan, with a sealing member having resilience to plug the gaps between the battery pack and the vehicle body framework member, and a floor plate that further partitions the gap from the exterior, thereby reducing noise intrusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the battery unit is mounted below the floor panel to moderate noise, then noise isolation is improved in covered regions, but uncovered regions at the ends of the floor panel allow noise intrusion
Solution Approach 1:
The patent applies local quality by adding sealing members specifically at the gap regions between the battery pack and vehicle body framework, rather than requiring the entire battery unit to cover all noise-prone areas. This targeted approach seals the uncovered end regions where noise intrusion occurs, while maintaining the overall simple structure of mounting the battery below the floor panel.
2Object-affected harmful factors
If additional noise-absorbing materials or thicker floor pan construction is used to cover uncovered regions, then noise isolation is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The sealing member acts as an intermediary element that fills the gap between the battery pack and vehicle body framework. This simple sealing component effectively blocks noise intrusion paths at the uncovered regions without requiring complex additional structures, thick floor pan construction, or extensive noise-absorbing materials.
3Ease of operation
If the sealing member is retained after battery pack mounting, then assembly operation is simplified, but the sealing member must be pre-installed before battery mounting
Solution Approach 1:
The sealing member is retained at the vehicle body framework member before the battery pack is mounted to the vehicle. This preliminary action ensures that the sealing member is already in position to plug gaps between the battery pack and framework, eliminating the need for separate assembly operations after battery mounting and simplifying the overall assembly process.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The proposed structure effectively moderates noise intrusion into the vehicle cabin using a simple design, reducing the need for additional noise-absorbing materials and allowing for thinner floor pan construction.
Implementation Method 1
a sealing member that has resilience and that plugs a gap between the battery pack and the vehicle body framework member
Data Source
AI summary
A battery mounting structure, includes: a battery pack mounted below a floor pan of a vehicle cabin; a vehicle body framework member to which a vehicle horizontal direction end portion of the floor pan is joined; and a sealing member that has resilience and that plugs a gap between the battery pack and the vehicle body framework member.