Spring-Damped Louver Control to Reduce Oscillation and Reverse Airflow
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Louver systems in cooling systems tend to oscillate around their equilibrium angle, leading to wear and tear, and potentially allowing reverse airflow that can negate cooling efficiency, as existing solutions like hard stops either reduce airflow or fail to fully prevent oscillation.
Innovation Solution
Incorporating a spring member within the louver frame or louvers that engages with a spring member engagement feature to apply a variable force, damping oscillations and allowing the louvers to open to an equilibrium angle while preventing reverse airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If hard stops are used to prevent louver oscillation, then oscillation is reduced, but airflow is reduced
Solution Approach 1:
The patent replaces static hard stops with a dynamic spring-based mechanism that allows the louver to oscillate within a controlled range. The spring member (214) provides a variable restoring force that increases with displacement, enabling the louver to reach a stable equilibrium position without rigid constraints, thus maintaining optimal airflow while preventing excessive oscillation.
Solution Approach 2:
The invention changes the physical parameter of the stopping mechanism from rigid (hard stops) to elastic (spring member). This parameter change allows the system to adapt to airflow variations while maintaining stability, resolving the contradiction between oscillation control and airflow maintenance.
2Stability of the object's composition
If hard stops are used to prevent louver oscillation, then oscillation is reduced, but the louver system wears out faster
Solution Approach 1:
The spring member (214) acts as a cushioning element that absorbs the mechanical shocks and stresses associated with louver oscillation. By providing a compliant stopping mechanism, the spring reduces the impact forces on the louver and its mounting structure, thereby preventing wear and tear and extending system lifespan while still controlling oscillation.
Solution Approach 2:
The spring member serves as an intermediary between the louver and the rigid louver frame. It mediates the interaction by providing a flexible connection that controls oscillation without transmitting full impact forces to the structural components, thus reducing wear on both the louver and the frame.
3Productivity
If louvers are allowed to oscillate freely, then airflow efficiency is maintained, but reverse airflow may occur
Solution Approach 1:
The spring-based mechanism provides a feedback control system where the spring force increases with louver displacement from the equilibrium position. This automatic feedback ensures that the louver returns to its optimal opening angle (e.g., 90 degrees) where airflow efficiency is maximized, while the restoring force prevents the louver from oscillating into the closed position where reverse airflow would occur.
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 spring-based mechanism effectively reduces oscillation, extends the lifespan of the louver system, and ensures effective airflow directionality by preventing reverse airflow while maintaining optimal airflow efficiency.
Implementation Method 1
a spring member coupled to the louver frame and configured to engage with a spring member engagement feature of the louver
Implementation Method 2
dampen oscillation about an equilibrium angle for a given airflow speed
Data Source
AI summary
Systems for controlling louver positions are described herein. Such systems may include: a louver frame; a louver coupled to the louver frame via a rotation member and adapted to rotate at a louver side around an axis of rotation at the rotation member. In one embodiment, the louver includes a spring member engagement feature. The system also includes a spring member coupled to the louver frame and adapted to engage with the spring member engagement feature of the louver and apply a force to the louver when a forward airflow is applied to the louver in a forward airflow direction.