Impact-absorbing pressure relief assembly having cover
Solution Overview
Problem
Conventional pressure relief assemblies in vehicles generate noise due to rattling and are susceptible to fracturing when impacted with debris, which compromises their effectiveness in maintaining a quiet and safe interior environment.
Innovation Solution
A pressure relief assembly featuring impact-absorbing bumpers made of elastomeric materials, such as thermoplastic elastomer (TPE) or rubber, which are integrated between the pressure relief device and its cover to absorb impact energy and reduce noise, securely coupling the cover to the device via snapable securing couplers and retainers to compress the bumpers and prevent rattling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the cover is rigidly coupled to the pressure relief device, then structural strength is improved, but noise from rattling increases and susceptibility to fracturing upon impact worsens
Solution Approach 1:
Impact-absorbing bumpers are pre-installed between the cover and pressure relief device to cushion against future impacts and vibrations. The bumpers are positioned in advance to prevent direct contact between rigid surfaces, thereby eliminating rattling noise and reducing impact forces before they can cause damage.
Solution Approach 2:
The impact-absorbing bumpers serve as an intermediary element between the cover and the pressure relief device. This mediator absorbs impact energy and dampens vibrations, preventing direct transmission of forces between the two components while maintaining their structural integrity and reducing noise.
2Strength
If the cover is rigidly coupled to the pressure relief device, then structural strength is improved, but susceptibility to fracturing upon impact worsens
Solution Approach 1:
Impact-absorbing bumpers are pre-installed between the cover and pressure relief device to cushion against future impacts and vibrations. The bumpers are positioned in advance to prevent direct contact between rigid surfaces, thereby eliminating rattling noise and reducing impact forces before they can cause damage.
Solution Approach 2:
The assembly combines rigid materials (cover and pressure relief device housing) with elastomeric materials (impact-absorbing bumpers) to create a composite structure. This composite design maintains structural strength while introducing energy-absorbing properties that prevent fracturing upon impact.
3Object-generated harmful factors
If impact-absorbing bumpers are added between the cover and pressure relief device, then noise reduction and impact resistance are improved, but device complexity increases
Solution Approach 1:
The impact-absorbing bumpers are integrated into the existing assembly structure by positioning them within the cover or pressure relief device housing. This merging approach incorporates the noise reduction function into the existing design without requiring separate mounting brackets or complex attachment mechanisms.
Solution Approach 2:
The impact-absorbing bumpers use simple, inexpensive elastomeric materials that can be easily manufactured and replaced if needed. These basic components provide effective noise reduction and impact protection without requiring complex engineering or expensive materials.
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 solution effectively dampens impact forces and vibratory energy, reducing undesirable noise and enhancing the assembly's resistance to damage from debris impacts, thereby providing a quieter and more durable pressure relief system.
Implementation Method 1
At least one impact-absorbing bumper is disposed between the pressure relief device and the cover. The impact-absorbing bumper is configured to dampen impact energy and reduce undesirable noise.
Implementation Method 2
The impact-absorbing bumper(s) is configured to dampen impact energy and reduce undesirable noise
Data Source
AI summary
A pressure relief assembly includes a pressure relief device including a housing that defines at least one air passage chamber, and at least one flap secured within the air passage chamber(s). The pressure relief device is configured to securely couple to a component. A cover is secured to the pressure relief device. At least one impact-absorbing bumper is disposed between the pressure relief device and the cover. The impact-absorbing bumper(s) is configured to dampen impact energy and undesirable noise.