Ventilation Duct Mounting Structure for Vehicle Vibration Noise
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electrified vehicles lack a specific holding structure for ventilation ducts, leading to potential detachment from the side trim and abnormal noise due to vibration.
Innovation Solution
A vehicle design incorporating a duct fixing member made of an elastic body, such as a grommet, to securely hold and position the ventilation duct, ensuring it communicates effectively with the housing and interior components, thereby preventing positional deviation and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the ventilation duct is connected to the housing without a specific holding structure, then the assembly is simple, but the duct may detach or generate abnormal noise due to vibration
Solution Approach 1:
The patent introduces a duct fixing member as an intermediary component between the ventilation duct and the housing. This fixing member includes a holding portion that engages with the duct and a fixing portion that secures it to the housing, thereby preventing detachment and noise while maintaining assembly simplicity
Solution Approach 2:
The duct fixing member is made of an elastic body material that can flexibly adapt to the duct's position and vibration characteristics. The elastic material provides both secure holding and vibration absorption, resolving the contradiction between simple assembly and reliable positioning
2Reliability
If the duct fixing member is made of an elastic body, then the position of the ventilation duct is regulated and noise is suppressed, but the device complexity increases
Solution Approach 1:
The patent utilizes the elastic properties of the fixing member material to provide both positioning and vibration damping functions. By selecting appropriate elastic material parameters, the system achieves reliable duct positioning without requiring complex mechanical structures
Solution Approach 2:
The duct fixing member serves multiple functions simultaneously: it holds the duct in position, absorbs vibrations to prevent noise, and provides a simple attachment mechanism. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity
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 elastic duct fixing member effectively restricts the ventilation duct's position, suppressing positional deviation and abnormal noise during vibration, ensuring efficient air flow and assembly, while supporting the duct from below to prevent noise generation.
Implementation Method 1
a duct fixing member that is made of an elastic body, holds a part of the ventilation duct, and is fitted to the vehicle body
Data Source
AI summary
The vehicle of the present disclosure includes an in-vehicle device that includes a housing to which cooling air is supplied and is supported by a vehicle body, and includes a ventilation duct that is held by the housing and the interior component so as to communicate with the interior of the housing of the in-vehicle device and an opening formed in the interior component, and a duct fixing member that is formed by the elastic body and holds a part of the ventilation duct and is fitted to the vehicle body.