Pleated Shade Assembly for RV Vent Light and Heat Control
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Solution Overview
Problem
Recreational vehicle ceiling vents lack effective light control and insulation, as they allow unwanted illumination and fail to provide adequate temperature regulation in varying ambient conditions.
Innovation Solution
A vent shade assembly featuring a movable pleated shade element supported by side walls and shade strings, which can be operated between closed and open positions to control light entry and enhance insulative properties, comprising a vent shade outer frame and inner frame with side walls and string guides, allowing for adjustable light exposure and improved thermal insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a ceiling vent is opened to allow light and air into the recreational vehicle, then illumination and ventilation are improved, but unwanted illumination and heat transfer increase
Solution Approach 1:
The shade element is divided into multiple pleats that can be independently positioned, allowing selective light blocking while maintaining ventilation. The segmentation of the shade into controllable sections enables precise control over light and heat entry without completely closing the vent
Solution Approach 2:
The shade element is designed to be movable between multiple positions (open, closed, and intermediate), allowing dynamic adjustment of light and heat control. The operable mechanism enables the shade to adapt to different lighting and temperature conditions while maintaining vent functionality
2Loss of energy
If the ceiling vent remains closed to block light and heat, then insulation is improved, but ventilation and natural lighting are reduced
Solution Approach 1:
The movable shade element allows the vent to maintain its open position for ventilation while dynamically adjusting light and heat blockage. The shade can be positioned to optimize thermal insulation during different times of day or weather conditions without sacrificing air flow
Solution Approach 2:
The pleated shade element provides localized light and heat blocking properties while allowing air to pass through the vent. Different portions of the shade can be positioned to address specific thermal or lighting issues while maintaining overall ventilation efficiency
3Device complexity
If a simple vent design is used, then device complexity is reduced, but light control and insulation capabilities are insufficient
Solution Approach 1:
The pleated shade element uses a flexible, thin material structure that can be easily manufactured and installed. This flexible design provides effective light and heat control without requiring complex mechanical systems, maintaining simplicity while enhancing functionality
Solution Approach 2:
The pleated structure segments the shade into multiple folds that work together to block light and heat. This segmentation achieves superior light control compared to a simple flat cover, while the modular pleated design remains relatively simple to manufacture and install
Data Source
AI summary
A vent shade assembly for a recreational vehicle ceiling vent comprises a vent shade outer frame having an inner flange, a vent shade inner frame having an inner flange, and a pair of side walls disposed between the inner flange of each of the outer and inner frame to form a slot. A movable pleated shade element disposed within the slot is operable between a closed position and a plurality of positions there between. A first and a second shade string is disposed at least partially alongside and parallel to a first and second of the pair of side walls, respectively, and proximate a first and a second side edge of the movable pleated shade element, respectively. A portion of the inner flange of the vent shade outer frame supports the first and second side edge of the movable pleated shade element.