Window AC Fresh Air Duct Using Outdoor Fan Pressure
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Solution Overview
Problem
Traditional window air conditioners with fresh air functions require multiple fans, increasing costs and complexity.
Innovation Solution
A window air conditioner design that integrates the fresh air function by using the high-pressure area of the outdoor air duct to drive airflow through a fresh air duct, eliminating the need for a separate fresh air fan and reducing the overall number of fans.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate fresh air fan is added to provide fresh air function, then fresh air capability is improved, but the number of fans increases and cost increases
Solution Approach 1:
The outdoor fan is designed to perform multiple functions: it serves both as the outdoor air circulation fan and as the fresh air fan. By making the outdoor fan universal, the patent eliminates the need for a separate fresh air fan, thereby reducing the total number of fans while maintaining fresh air capability.
Solution Approach 2:
The patent merges the fresh air function with the outdoor air circulation function by integrating both functions into a single outdoor fan system. The fresh air duct is connected to the outdoor air duct, and the outdoor fan drives airflow through both the outdoor air outlet and the fresh air outlet, combining what were previously separate systems.
2Adaptability or versatility
If a separate fresh air fan is added to provide fresh air function, then fresh air capability is improved, but cost increases
Solution Approach 1:
The outdoor fan is designed to perform multiple functions: it serves both as the outdoor air circulation fan and as the fresh air fan. By making the outdoor fan universal, the patent eliminates the need for a separate fresh air fan, thereby reducing the total number of fans while maintaining fresh air capability.
Solution Approach 2:
The patent merges the fresh air function with the outdoor air circulation function by integrating both functions into a single outdoor fan system. The fresh air duct is connected to the outdoor air duct, and the outdoor fan drives airflow through both the outdoor air outlet and the fresh air outlet, combining what were previously separate systems.
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
This design reduces fan costs and complexity while maintaining effective air circulation and dehumidification capabilities, improving user comfort and operational efficiency.
Implementation Method 1
A fresh air duct shell (200) is provided in the housing (110). A fresh air duct (210) is provided in the fresh air duct shell (200), and is configured to communicate the fresh air opening (121) with the outdoor environment through the vent (1301)
Data Source
AI summary
A window air conditioner is provided. The window air conditioner has a housing, an indoor air duct shell, an outdoor air duct shell and a fresh air duct shell. The housing has an indoor air inlet and an indoor air outlet communicated by an indoor air duct formed by the indoor air duct shell. The housing also has an outdoor air inlet and an outdoor air outlet communicated by an outdoor air duct. A fresh air opening communicated with the indoor air duct is provided on the back surface of the indoor air duct shell. The outdoor air duct shell forms a high-pressure area of the outdoor air duct and has a vent for an airflow in the high-pressure area of the outdoor air duct to pass. The fresh air duct shell has a fresh air duct communicating the vent with the fresh air opening.