Attic ventilation system
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Solution Overview
Problem
Existing attic ventilation systems do not effectively supply fresh air from outside to the attic, nor do they efficiently expel hot air, and they lack an economical and energy-saving solution.
Innovation Solution
A solar-powered fan system integrated with a solar panel that can be mounted in place of a roof window, providing fresh air to the attic by using solar energy to power a fan that expels hot air, utilizing a fan assembly and power source assembly attached to a window frame with support bars for efficient airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If traditional attic ventilation systems are used, then hot air can be expelled from the attic, but fresh air cannot be supplied from outside to the attic
Solution Approach 1:
The patent inverts the traditional ventilation approach by placing the active fan component at the front window to draw fresh air IN, rather than relying on passive exhaust at the ridge. This inversion of airflow direction and active component placement enables both fresh air intake and hot air expulsion functions to be achieved simultaneously.
Solution Approach 2:
The patent introduces a solar-powered fan as an intermediary device mounted at the front window to actively draw fresh air into the attic. This intermediary component bridges the gap between passive roof ventilation and active fresh air supply, enabling controlled airflow without complex mechanical systems.
2Use of energy by moving object
If solar-powered fan system is implemented, then energy costs are reduced by operating only on sunny days, but system complexity increases
Solution Approach 1:
The system employs a solar panel to power the fan, making the ventilation system self-powered during sunny conditions. This self-service approach eliminates the need for external electrical connections or manual operation, reducing energy costs while maintaining relatively simple system architecture through direct solar-to-motor conversion.
3Productivity
If solar panel and fan assembly are mounted instead of roof window, then fresh air supply and hot air expulsion are achieved, but installation cost increases
Solution Approach 1:
The patent designs the fan assembly to be mounted within the existing window frame structure, allowing the same assembly to serve multiple functions: framing support, solar panel mounting, fan housing, and airflow channeling. This multi-functionality reduces the need for additional structural components and simplifies installation while maintaining effective ventilation.
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 system effectively refreshes the attic by supplying fresh air and expelling hot air, saving energy costs by only operating on sunny days, while being inexpensive to implement and maintain.
Implementation Method 1
a solar panel (42) that can be attached to a support frame (44)
Implementation Method 2
a fan assembly (20) including fan blades (22) connected to a shaft (24b) of a motor (24)
Data Source
AI summary
An attic ventilation system including a fan assembly, a power source assembly and an attic assembly is disclosed herein. The fan assembly includes fan blades, a fan housing and a motor, the fan housing covers the fan blades. The motor makes the blades rotate. The fan housing is attached to a window frame of an attic assembly by support bars. The power source assembly includes a solar panel attached to a support frame. The support frame is attached to the window frame by top support bars and bottom support bars. The top support bars are larger than the bottom support bars. The solar panel has an inclination to face a sun path. The solar panel supplies power energy to the motor. The fan assembly blows fresh air to an interior of an attic assembly.