Smart attic fan assembly
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Solution Overview
Problem
Existing attic fans lack the ability to efficiently adjust their operation based on real-time temperature and humidity conditions, leading to suboptimal cooling efficiency and increased energy costs, which can result in premature failure of building materials and moisture issues.
Innovation Solution
A smart attic fan assembly that includes a motor, fan blade assembly, condition sensors, and a control unit, which adjusts the fan speed based on temperature and humidity readings to maintain desired setpoints, using an electronically commutated motor and sensors to optimize airflow and energy usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the attic fan operates at high speed continuously, then cooling efficiency is improved, but energy consumption increases
Solution Approach 1:
The patent implements variable speed control of the attic fan motor, allowing the fan to operate at different speeds based on real-time temperature and humidity conditions. The motor speed is dynamically adjusted through a control system that receives sensor inputs and modifies power delivery accordingly, enabling the fan to match its operational intensity to actual cooling needs rather than running at constant high speed
Solution Approach 2:
The patent changes the operational parameters of the attic fan by adjusting motor speed based on environmental conditions. The system monitors temperature and humidity levels and modifies the fan's rotational speed parameter in response, allowing optimal cooling performance while minimizing energy consumption when full cooling capacity is not required
2Productivity
If the attic fan operates at high speed continuously, then cooling efficiency is improved, but cost of use increases
Solution Approach 1:
The patent changes the operational parameters of the attic fan by adjusting motor speed based on environmental conditions. The system monitors temperature and humidity levels and modifies the fan's rotational speed parameter in response, allowing optimal cooling performance while minimizing energy consumption when full cooling capacity is not required
Solution Approach 2:
The patent implements a feedback control system where temperature and humidity sensors continuously monitor attic conditions and provide input to the motor control system. This feedback loop enables the system to automatically adjust fan operation to maintain desired environmental conditions while minimizing energy consumption, preventing both over-cooling and unnecessary energy use
3Productivity
If the attic fan operates continuously, then cooling efficiency is improved, but lifespan of fan decreases
Solution Approach 1:
The patent implements periodic operation of the attic fan based on environmental conditions rather than continuous operation. The fan operates in cycles, turning on when temperature or humidity thresholds are exceeded and turning off when conditions are satisfactory, thereby reducing cumulative operating hours and extending component lifespan while maintaining effective cooling when needed
4Productivity
If the attic fan operates continuously, then cooling efficiency is improved, but overheating of attic is reduced less effectively
Solution Approach 1:
The patent implements a feedback control system where temperature and humidity sensors continuously monitor attic conditions and provide input to the motor control system. This feedback loop enables the system to automatically adjust fan operation to maintain desired environmental conditions while minimizing energy consumption, preventing both over-cooling and unnecessary energy use
Solution Approach 2:
The patent implements variable speed control of the attic fan motor, allowing the fan to operate at different speeds based on real-time temperature and humidity conditions. The motor speed is dynamically adjusted through a control system that receives sensor inputs and modifies power delivery accordingly, enabling the fan to match its operational intensity to actual cooling needs rather than running at constant high speed
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 smart attic fan assembly enhances cooling efficiency, reduces energy consumption, prolongs the life of building materials, and minimizes moisture and humidity problems by dynamically adjusting its operation in response to ambient conditions, thereby lowering cooling costs and preventing overheating.
Implementation Method 1
detecting a temperature of the air in the airflow
Data Source
AI summary
An attic fan assembly and method for efficiently cooling an attic is provided. The assembly includes a motor, a fan blade assembly, a control unit, a condition sensor, and a speed sensor. The control unit receives a condition sensor signal from the condition sensor and determines a target speed. The control unit receives a speed sensor signal from the speed sensor and determines a present speed. The control unit sends a motor signal to control speed of the motor according to the conditions of the target speed and the present speed.