Adaptive Fan with Variable Hood for Distance-Based Airflow Control
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Solution Overview
Problem
Existing fans lack the ability to automatically adjust airflow speed based on the distance between the fan and a target object, leading to inconsistent cooling performance across different scenarios.
Innovation Solution
A fan design incorporating an airflow adjusting module with a variable hood, a sensor to detect target object distance, and a controller to adjust the size of the variable opening, allowing for automatic adjustment of airflow speed in response to changing distances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the fan uses a fixed airflow speed, then the structure is simple and energy consumption is low, but the cooling performance cannot adapt to different distances and application scenarios
Solution Approach 1:
The patent applies the dynamics principle by making the hood variable and adjustable rather than fixed. The hood can change its opening size dynamically based on the detected distance to the target object, allowing the fan to adapt airflow speed to different scenarios. This transforms a static structure into a dynamic one that responds to changing conditions.
Solution Approach 2:
The patent implements feedback through a sensor that detects the distance between the fan and the target object, sends this information to a controller, which then adjusts the hood opening size accordingly. This closed-loop feedback system enables the fan to automatically adapt to different distances and maintain optimal cooling performance.
2Reliability
If the fan uses a fixed airflow speed, then the control system is simple, but the cooling performance is inconsistent across different scenarios
Solution Approach 1:
The feedback principle is applied through a distance-sensing system that continuously monitors the gap between the fan and target object. The controller receives this feedback and adjusts the hood opening to maintain consistent cooling performance regardless of distance variations, ensuring reliable operation across different scenarios.
Solution Approach 2:
The patent replaces manual mechanical adjustment with an automated sensor-controlled system. Instead of requiring manual intervention to adjust airflow, the system uses electronic sensing and control to automatically modify the hood opening, improving consistency while adding control sophistication.
3Adaptability or versatility
If the fan manually adjusts airflow speed, then the adjustment is simple to operate, but it cannot adapt flexibly to different application scenarios
Solution Approach 1:
The patent applies self-service by enabling the fan to automatically detect and respond to different scenarios without user intervention. The sensor and controller work together to autonomously adjust the hood opening based on detected distance, allowing the system to serve itself and adapt to varying conditions without requiring manual operation.
Solution Approach 2:
Through feedback from the distance sensor to the controller, the system automatically determines the appropriate airflow setting for each scenario. This eliminates the need for manual judgment and adjustment by the user, providing flexible adaptation while maintaining ease of operation.
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 fan maintains a consistent airflow experience for target objects at varying distances, enhancing cooling performance and user comfort by dynamically adjusting airflow speed.
Implementation Method 1
a sensor to detect target object distance
Implementation Method 2
A fan uses electromagnetic conversion to drive the fan blades to rotate
Data Source
AI summary
A fan designed for directed airflow towards a target object. The fan includes a fan body producing an airflow and an airflow adjusting module that adjusts the airflow speed based on the distance to the target object. The airflow adjusting module includes a first sensor for distance measurement, a variable hood with a variable opening, and a controller. The controller, connected to the first sensor and the variable hood, regulates the variable opening size in response to distance information. The fan's adaptive airflow control ensures consistent air strength for the target object, adapting to varying distances.