RV Air Conditioner Baffle Assembly with Flexible Sealing Edges
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Solution Overview
Problem
Recreational vehicle air conditioning systems face inefficiency due to mixing of supply and return air streams, which are separated by baffles but fail to maintain a seal over time due to flexing of the vehicle, leading to reduced efficiency.
Innovation Solution
An air distribution assembly with a baffle and mounting flanges that rigidly connect to the frame, ensuring separation and maintaining a seal between the supply and return air streams by using adhesive foam for additional sealing layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive foam is used to seal gaps around the baffle, then sealing effectiveness is improved initially, but the seal deteriorates over time due to vehicle flexing causing adhesive peeling
Solution Approach 1:
The baffle is designed with flexible edges that can dynamically adapt to the flexing movements of the vehicle body during operation. This dynamic flexibility allows the baffle to maintain continuous contact with the frame, preventing gaps from forming while accommodating the natural movement of the vehicle structure over time.
Solution Approach 2:
The sealing system combines rigid baffle material with flexible sealing edges, creating a composite structure that integrates both structural stability and adaptive flexibility. This composite design allows the baffle to maintain its positioning function while its flexible edges conform to frame movements, ensuring long-term seal durability.
2Reliability
If the baffle is rigidly fixed to prevent mixing of air streams, then air stream separation is improved, but the structure becomes vulnerable to damage from vehicle flexing
Solution Approach 1:
The baffle incorporates flexible edges that allow controlled movement and deformation in response to vehicle flexing forces. This dynamic flexibility prevents stress concentration and structural damage while maintaining the baffle's primary function of separating air streams through its rigid central portion.
Solution Approach 2:
The baffle is segmented into a rigid central portion for structural stability and air stream separation, and flexible peripheral edges for accommodating vehicle movement. This segmentation allows different parts of the baffle to perform different functions - the rigid portion maintains separation effectiveness while the flexible edges protect against structural damage.
3Reliability
If the opening is divided into two compartments with a baffle, then air stream mixing is prevented, but gaps around the baffle allow leakage over time
Solution Approach 1:
The baffle incorporates flexible edges that act as dynamic seals, conforming to the frame structure even when the vehicle body flexes during operation. These flexible edges prevent gaps from forming and eliminate air leakage paths, maintaining effective air stream separation throughout the vehicle's operational life.
Solution Approach 2:
The flexible edges of the baffle dynamically adapt to the changing geometry of the opening caused by vehicle flexing. This dynamic adjustment ensures continuous sealing contact, preventing air leakage while accommodating the natural movement of the vehicle structure during normal operation.
Data Source
AI summary
An air distribution assembly for a recreational vehicle may include a frame mounted within an opening of the recreational vehicle and a baffle positioned therein to sealing divide an air handling chamber into an air supply side and an air return side. The baffle may include mounting flanges for rigidly connecting the baffle to the inside surface of the frame.