Fan Grill With Offset Louvers For Vortex Airflow
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Solution Overview
Problem
Conventional fans are ineffective in circulating air throughout a room due to their cylindrical air flow pattern, which limits air distribution to regions above or below the fan blades and requires time to oscillate blades for comprehensive coverage.
Innovation Solution
A fan grill with angled louvers that produce a cone or vortex-shaped air current, allowing air flow above and below the fan blades and rotating to enhance air circulation, utilizing a fan grill with offset louvers angled between 90 degrees and 105 degrees to direct air flow effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional fans use cylindrical air flow pattern, then the fan structure is simple, but air circulation coverage is limited
Solution Approach 1:
The fan grill is segmented into multiple louvers arranged in different patterns (first subset with first pattern, second subset with second pattern). Each louver group directs air in specific directions, transforming the single-direction cylindrical flow into multi-directional conical or vortex flow, thereby expanding air circulation coverage throughout the room.
Solution Approach 2:
Different regions of the fan grill have different louver configurations. The first subset of louvers has a first pattern while the second subset has a second pattern, creating local variations in air flow direction. This allows different parts of the air stream to be directed differently, producing conical or vortex-shaped air currents that cover various zones of the room.
2Adaptability or versatility
If conventional fans oscillate blades to spread air, then directional coverage improves, but time consumption increases
Solution Approach 1:
The louver patterns are pre-configured on the fan grill to direct air in multiple directions simultaneously from the start. The first subset and second subset of louvers are arranged to create conical or vortex air currents that inherently cover multiple directions, eliminating the need for time-consuming oscillation to achieve comprehensive directional coverage.
Solution Approach 2:
The fan grill can rotate about an axis perpendicular to the air flow direction, dynamically changing the orientation of the louver patterns. This rotation allows the pre-configured multi-directional air flow patterns to sweep through different angular positions, providing comprehensive room coverage without requiring blade oscillation.
3Adaptability or versatility
If conventional fans produce cylindrical air flow, then the air flow path is direct, but regions above and below fan blades remain uncovered
Solution Approach 1:
The louver configurations transform the traditional horizontal cylindrical air flow into three-dimensional conical or vortex air currents. The first subset and second subset of louvers are angled to direct air both horizontally and vertically, creating air flow that extends to regions above and below the fan blade elevation, adding vertical dimensionality to the air circulation pattern.
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
Significantly increases air circulation by distributing air throughout a room, including regions above and below the fan blades, and improves airflow efficiency by creating a vortex or cone-shaped air current.
Implementation Method 1
produce an air flow current in the shape of a cone or a vortex
Implementation Method 2
The fan grill may act to produce air flow currents that spread out across the sides fan blades
Data Source
AI summary
The fan includes a fan frame, blades positioned inside the fan frame, a grill frame on a side of the fan frame, a centerline of the grill frame traversing through a midpoint of the grill frame, a first motor configured to rotate the blades to produce an air flow in a first direction through the grill frame, the first direction being parallel to a centerline of the grill frame, a second motor configured to rotate the grill frame within the fan frame, a plurality of louvers affixed within the grill frame, the plurality of louvers including a first subset of louvers and a second subset of louvers, the first subset of louvers possessing no offset angle relative an angle of the centerline, each one of the second subset of louvers being angled toward a first side of the grill frame due to the at least one first offset angle.