Vehicle Battery Shielding Structure for Cabin Noise and Heat Blocking
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Solution Overview
Problem
Existing vehicle battery units generate noise and heat that are not effectively managed, leading to emissions into the vehicle cabin.
Innovation Solution
A shielding structure comprising fibrous sound-absorbing members surrounding the battery unit, including a first member on the panel and a second member covering the upper and side parts, along with a sound-insulating cover to reduce noise and heat emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a battery unit is equipped with a blower and ducts for air cooling, then the battery can be cooled effectively, but noise is generated from the blower and heat is released into the vehicle cabin
Solution Approach 1:
The patent introduces a shielding structure as an intermediary component between the battery unit and the vehicle cabin. This shielding structure includes sound-absorbing materials and heat-resistant materials that mediate the transmission of noise and heat, allowing the cooling system to function while blocking the harmful emissions from reaching the cabin space.
Solution Approach 2:
The shielding structure is nested around the battery unit, creating a layered protection system. The sound-absorbing layer is positioned adjacent to the battery, with additional shielding layers arranged in concentric or nested configurations to progressively attenuate noise and heat before they reach the vehicle cabin.
2Strength
If a cover made of metal or synthetic resin is placed over the battery unit, then the battery unit is protected, but noise and heat from the battery unit are released into the vehicle cabin
Solution Approach 1:
The patent employs composite shielding structures that combine multiple materials with different properties. The shielding structure integrates sound-absorbing materials (such as foam or fibrous materials) with heat-resistant and acoustically insulating materials, creating a composite barrier that simultaneously addresses noise reduction and heat blocking while maintaining structural protection.
Solution Approach 2:
The patent utilizes porous or cellular materials for the shielding structure, such as foam materials with closed-cell or open-cell structures. These porous materials provide effective sound absorption through acoustic impedance and heat resistance through thermal insulation properties, while the material structure itself provides mechanical protection to the battery unit.
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
Effectively blocks noise and heat from the battery unit, providing a preferred structure for reducing emissions and improving vehicle cabin comfort.
Implementation Method 1
a fibrous first sound-absorbing member located on the panel and in contact with a lower part of the battery unit; and a fibrous second sound-absorbing member surrounding an upper part and side parts of the battery unit
Data Source
AI summary
A shielding structure for a battery unit located above a panel and under in-vehicle equipment in a vehicle includes: a fibrous first sound-absorbing member located on the panel and in contact with a lower part of the battery unit; and a fibrous second sound-absorbing member surrounding an upper part and side parts of the battery unit. The battery unit is surrounded by the first sound-absorbing member and the second sound-absorbing member.