Sound-Permeable Textile Air Guide for Vehicle Front End
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Solution Overview
Problem
Existing front end designs for motor vehicles are complex due to the need for separate components to manage airflow and protect sound generators from environmental influences, such as rain and wind, while also emitting acoustic signals effectively.
Innovation Solution
A front part with an air guiding element made of sound-permeable, laminated perforated metal textile material that directs airflow into the vehicle while protecting the sound generator, combining airflow conduction and environmental protection in a single component, allowing acoustic signals to pass through while keeping rain and wind out.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate components are used for airflow conduction and sound generator protection, then the protection function is improved, but the device complexity increases
Solution Approach 1:
The patent combines the airflow conduction function and sound generator protection function into a single air guiding element. This element includes a housing that directs airflow and a cover made of sound-permeable textile material that protects the sound generator while allowing acoustic signals to pass through, thereby reducing the number of components while maintaining both functions
Solution Approach 2:
The air guiding element is designed as a multi-functional component that simultaneously serves as an airflow director, a protective cover for the sound generator, and an acoustic signal transmitter. The textile material specifically enables this multi-functionality by being both protective and sound-permeable
2Reliability
If a solid cover is used to protect the sound generator from rain and wind, then the protection function is improved, but the acoustic signal transmission is impaired
Solution Approach 1:
The cover is made from a sound-permeable textile material with a porous structure that allows acoustic signals to pass through while providing physical protection. The textile material's porosity enables sound wave transmission while its density and structure prevent raindrop penetration
Solution Approach 2:
The air guiding element combines different materials with complementary properties: a rigid housing material for structural support and airflow conduction, and a sound-permeable textile material for protection while maintaining acoustic transmission. This composite structure resolves the contradiction between protection and sound transmission
3Reliability
If multiple separate components are used for airflow management and sound protection, then the functional performance is improved, but the manufacturing and assembly complexity increases
Solution Approach 1:
The patent integrates multiple functions into a single air guiding element that can be manufactured as one piece or pre-assembled unit. The housing and cover form an integrated component that directs airflow and protects the sound generator simultaneously, reducing the number of manufacturing steps and assembly operations required
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
This design simplifies the structure by reducing the number of components needed, effectively cooling fluids and controlling temperature while maintaining acoustic signal integrity and aerodynamics, and allows for a more straightforward assembly and maintenance.
Implementation Method 1
the textile material of the air guiding element allows permeability for sound compared to a sheet metal plate used as an air guiding element, so that the acoustic signal generated by the sound generator can pass through the textile material of the air guiding element
Implementation Method 2
air molecules set in motion by the sound generator can be pushed through the textile material of the air guiding element due to the sound pressure built up by the sound generator
Implementation Method 3
The air guiding element can be arranged inside the inlet opening or inside the air duct. The air guiding element is designed and/or arranged in such a way that the airflow can be deflected and/or diverted by the air guiding element
Implementation Method 4
the textile material can preferably be made dense enough that raindrops and/or relative wind cannot essentially penetrate through the textile material at the driving speeds of the motor vehicle that are to be expected
Data Source
Figure 1~2
AI summary
A front section (12) for a motor vehicle (10) is provided with an inlet opening (14) for introducing airflow, an air duct adjoining the inlet opening (14) for supplying the airflow to a radiator and/or an air conditioning unit, an air guide element (16) for directing the airflow into the air duct, and a sound generator (18), in particular a horn or loudspeaker, for emitting an acoustic signal along a sound path, wherein the air guide element (16) is arranged in the sound path to at least partially cover the sound generator (18), and wherein the air guide element (16) has a textile material that is permeable to the acoustic signal of the sound generator (18).The textile material not only allows airflow to be deflected, but also covers the sound generator (18) without significantly impairing the perception of the acoustic signal, thus enabling a simple construction of a front section (12) for a motor vehicle (10) by reducing the number of components.