Vehicle Vent Valve Clamping Structure for Noise-Sealed Pressure Relief
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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 isolate external noise and maintain air pressure balance, causing discomfort and potential damage to vehicle equipment.
Innovation Solution
A ventilation device with a clamping component featuring an umbrella-shaped structure, including a connecting plate and retaining plates, that securely holds valve plates made of flexible material to ensure quick closure and sealing under gravitational force, minimizing noise and pressure imbalances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a large active margin is used in the valve plate design, then the valve plate can open fully for ventilation, but gaps remain in the closed state causing noise leakage and poor sealing
Solution Approach 1:
The patent employs a flexible membrane structure that replaces rigid valve plates. This membrane can deform elastically to achieve both full opening for ventilation and tight sealing when closed, eliminating the gap issue while maintaining the ventilation function. The flexibility allows the membrane to conform perfectly to the sealing surface in closed state.
Solution Approach 2:
The patent changes the physical state and properties of the sealing element from rigid to flexible. By using a membrane with specific elastic properties, the system transitions between open and closed states with different geometric parameters, achieving both full ventilation and tight sealing that was impossible with rigid plates.
2Ease of manufacture
If a rigid valve plate structure is used, then manufacturing is simple, but the valve plate cannot return quickly to closed position causing pressure imbalance
Solution Approach 1:
The flexible membrane structure naturally returns to its original shape quickly due to elastic recovery, eliminating the slow return problem of rigid plates. The membrane's flexibility allows rapid deformation back to the closed position, achieving fast pressure balancing while remaining manufacturable through conventional membrane fabrication processes.
Solution Approach 2:
The patent replaces complex mechanical return mechanisms (springs, actuators) with a passive elastic membrane system. The membrane's inherent elasticity provides the restoring force needed for quick return to closed position, simplifying the mechanical system while improving response speed.
3Object-affected harmful factors
If the valve plate gap is reduced to improve sealing, then noise isolation improves, but the ventilation capability when door is closed is compromised
Solution Approach 1:
The flexible membrane achieves zero-gap sealing when closed, completely blocking noise transmission paths. When ventilation is needed, the membrane deforms elastically to open fully, maintaining unobstructed airflow. This dual capability resolves the contradiction between sealing and ventilation that plagues rigid plate designs.
Solution Approach 2:
The patent transitions from a static rigid plate to a dynamic flexible membrane that can change its geometry continuously. The membrane adapts its shape based on pressure differential, achieving tight sealing under pressure while opening freely for ventilation, thus resolving the fixed compromise of rigid structures.
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 device effectively balances air pressure and reduces external noise by ensuring rapid return of valve plates to their closed position, enhancing passenger comfort and protecting vehicle components.
Implementation Method 1
the valve plate returns to the initial position under the action of the gravity
Implementation Method 2
valve plates made of flexible material
Data Source
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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 frame includes a frame, a vent, and a clamping part. Each of the clamping parts includes a connecting plate and a retaining plate. Each of the valve plate covers the vent and comprises at least one socket slot. The valve plate 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.