Wind-Driven Louver Blade Rotation for Element Ingress Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing louvers do not provide sufficient protection against wind-driven environmental elements such as rain, dirt, and debris, which can enter HVAC systems, leading to inefficiencies and potential damage.
Innovation Solution
A self-draining louver design with autonomously rotating blades that adjust positions based on the accumulation of environmental elements, maintaining high airflow in open positions while minimizing entry of elements into the system by closing when a threshold is reached, utilizing a frame with drain channels and catch members to manage and exit accumulated elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fixed louvers are used, then结构简单 (structure is simple), but protection against wind-driven environmental elements is insufficient
Solution Approach 1:
The louver blades are designed to rotate dynamically between open and closed positions in response to environmental conditions. The rotation members allow blades to autonomously adjust their position based on wind-driven environmental elements, transforming a static structure into a dynamic protective system that adapts to changing conditions.
Solution Approach 2:
The louver system incorporates self-regulating features where environmental elements themselves drive the rotation of blades through the rotation members. The system uses the force of wind and accumulated elements to automatically close blades when protection is needed, eliminating the need for external control mechanisms or power sources.
2Reliability
If louver blades are kept closed to prevent element ingress, then protection is improved, but airflow is reduced
Solution Approach 1:
The louver blades dynamically adjust between fully open and fully closed positions based on real-time environmental conditions. During calm periods, blades remain fully open to maximize airflow. When wind-driven environmental elements are detected, blades rotate to fully closed positions to prevent ingress, thus maintaining high productivity during normal operation while ensuring protection when needed.
Solution Approach 2:
The system changes the positional parameter of the louver blades from fixed to variable, allowing the opening angle to change between 0° (fully closed) and maximum (fully open) positions. This parameter change enables the system to optimize both airflow and protection by adapting the blade position to current environmental conditions.
3Reliability
If autonomously rotating blades are added, then element prevention is improved, but device complexity increases
Solution Approach 1:
The rotation members are designed to be actuated by environmental elements themselves rather than requiring external motors or actuators. Wind force and the weight of accumulated elements directly drive the rotation, making the system self-powered and reducing mechanical complexity while maintaining reliable element prevention.
Solution Approach 2:
The patent extracts the complex control system from the louver design and replaces it with simple passive rotation members that rely on environmental forces. This removes the need for sensors, motors, and control electronics, achieving element prevention through a minimal mechanical structure.
4Reliability
If catch members are added to capture elements, then protection is improved, but maintenance needs increase
Solution Approach 1:
The catch members are designed as integrated, removable components that can be easily extracted from the louver assembly for cleaning or replacement. This extraction design allows maintenance personnel to quickly remove accumulated elements without disassembling the entire louver system, significantly reducing maintenance time and effort while maintaining effective element capture.
Solution Approach 2:
The system is designed to accumulate environmental elements in the catch members during operation, and the catch members can be periodically emptied or replaced. This discarding and recovering process allows the system to maintain high reliability over time with minimal maintenance, as worn or contaminated catch members can be quickly replaced rather than repaired.
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
Effectively prevents environmental elements from entering HVAC systems while maintaining airflow, with blades rotating between fully open and closed positions based on element accumulation, enhancing resistance and reducing maintenance needs.
Implementation Method 1
the first louver blade autonomously rotates about the first rotation member based on environmental elements captured in the catch member
Data Source
AI summary
Described is a louver having a frame that forms an enclosure defining an opening, and a plurality of louver blades disposed within the opening. Each of the plurality of louver blades include a catch member that longitudinally extends between a first blade end and a second blade end of a corresponding louver blade. The louver may also include a rotation assembly configured to rotatably couple with the plurality of louver blades and the frame. The plurality of louver blades may autonomously rotate about rotation members of the rotation assembly based on environmental elements captured in the catch member such that the plurality of louver blades are configured in an open position in response to no water in the catch member and are configured in a closed position in response to an amount of environmental elements in the catch member.