Vehicle Vent Valve Plate Clamping for Noise-Reducing Sealing
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Solution Overview
Problem
Existing ventilation devices in vehicles have large active margins in their valve plates, leading to gaps that fail to effectively isolate external noise, compromising vehicle comfort and potentially damaging equipment.
Innovation Solution
A ventilation device with a clamping component featuring an umbrella-shaped structure and flexible valve plates that quickly return to a closed position under gravity, minimizing gaps and enhancing sealing, using a clamping component with a connecting plate and retaining plates to secure the valve plates over vents, and incorporating a non-woven fabric layer to reduce noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the valve plate is made with a large active margin to ensure adequate coverage, then the sealing capability is improved, but gaps are generated in the closed state which reduces noise isolation capability
Solution Approach 1:
The patent employs a flexible valve plate made of elastomeric material that can deform to conform to the vent surface. This flexibility allows the valve plate to achieve complete sealing contact when closed, eliminating gaps while maintaining adequate coverage area for pressure balancing functionality.
Solution Approach 2:
The patent changes the physical state and properties of the valve plate by using elastomeric material with specific durometer hardness values. This material property modification enables the valve plate to be both sufficiently compliant for gapless sealing and structurally adequate for covering the vent opening.
2Object-affected harmful factors
If the valve plate closure speed is increased to reduce gaps, then noise isolation is improved, but the risk of damage from rapid closure increases
Solution Approach 1:
The flexible elastomeric valve plate naturally provides cushioning during closure due to its elastic properties. This flexibility allows rapid closure for noise isolation while the material's elasticity absorbs impact energy, preventing damage to the vent structure and surrounding components.
Solution Approach 2:
The elastomeric material inherently provides cushioning before contact with the vent surface. This prior cushioning effect prevents impact damage while enabling rapid closure, as the flexible material deforms during closure and absorbs the shock of sealing against the vent.
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 balances internal and external air pressure, reducing noise ingress and enhancing passenger comfort by ensuring rapid closure of valve plates, thus improving the driving experience.
Implementation Method 1
flexible valve plates that quickly return to a closed position under gravity
Data Source
AI summary
A ventilation device for air flowing inside and outside a vehicle includes a mounting frame and a plurality of valve plates. The mounting frame includes a primary frame and a plurality of secondary frame bodies. Each of the secondary frames includes a frame, a vent, and a clamping component. Each of the clamping components includes a connecting plate and a retaining plate. Each the valve plate covers the vent and comprises at least one socket slot. The valve plates are located between the two retaining plates and the vent. The ventilation device can not only rapidly return to an original state after the air pressure inside and outside the vehicle is balanced, but can also reduce noise from outside the vehicle as much as possible, and improve the vehicle usage experience of a user.