Door or Window Ventilation Assembly with Manual Roller Airflow Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing window and door ventilation assemblies suffer from inadequate airflow control, unreliable mechanisms, and insufficient rainwater prevention, often requiring complex components and electrical devices.
Innovation Solution
An indoor airflow control unit with a rotatable lid structure and a roller structure, allowing precise airflow adjustment without electrical components, combined with an outdoor air collection unit featuring a continuous roof structure to prevent rain ingress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If complex mechanisms including electrical devices are used for airflow control, then airflow control precision is improved, but device complexity increases
Solution Approach 1:
The patent replaces electrical drive units with a purely mechanical roller structure that can be manually rotated to control airflow. The roller structure with its circumferential surface blocks or opens the airflow opening based on its rotational position, eliminating the need for motors, sensors, and control electronics while maintaining precise airflow adjustment capability.
Solution Approach 2:
The lid structure is designed to be manually operable, allowing users to directly control the roller structure's rotation to adjust airflow according to their needs. This self-service approach eliminates the need for automated control systems, power supplies, and complex electronic components.
2Adaptability or versatility
If multiple single parts are used for airflow control, then airflow adjustment versatility is improved, but device complexity increases
Solution Approach 1:
The roller structure serves multiple functions simultaneously: it blocks the airflow opening when needed, allows adjustable airflow through rotational positioning, and can be integrated with the lid structure for combined operation. This multi-functional design replaces what would otherwise require multiple separate components for blocking, adjusting, and controlling airflow.
Solution Approach 2:
The patent combines the lid structure and roller structure into an integrated assembly where the roller is mounted on the lid or within the housing. This merging of components reduces the total number of parts while maintaining the versatility of airflow control through the coordinated action of the lid and roller.
3Ease of manufacture
If standard ventilation assemblies are used, then manufacturing simplicity is maintained, but water prevention capability deteriorates
Solution Approach 1:
The patent introduces a vertical dimension to water prevention by incorporating an overhang structure on the outdoor housing that extends outward to shed rainwater. This dimensional addition creates a protective barrier that prevents water from entering the ventilation opening while maintaining simple manufacturing through basic extrusion or molding of the housing structure.
Data Source
Figure 1~3
Figure 4~6
Figure 7~9
AI summary
Disclosed herein is an indoor airflow control unit (1) for a door or window ventilation assembly having a unit housing and a lid structure. Furthermore, an outdoor air collection unit (3) for a door or window ventilation assembly and a door or window ventilation assembly is disclosed.