Modular Ventilator Fan Assembly for Portable Airtight Ventilation
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Solution Overview
Problem
Current ventilators are bulky, require many wires, are not easily portable, and can leak air, leading to inefficiency and potential hazards such as fire due to gas buildup.
Innovation Solution
A compact, modular ventilator design with a lightweight housing, airtight fan assembly, and a touchscreen display, allowing for easy transportation and rapid emergency ventilation with minimal air leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a compact, modular ventilator design is used, then portability and ease of transportation are improved, but manufacturing precision and sealing requirements worsen
Solution Approach 1:
The ventilator is divided into modular components including a housing module, fan assembly module, and circuit board module. Each module can be manufactured separately with standardized sealing interfaces, reducing the overall manufacturing precision requirement while maintaining compactness and portability.
Solution Approach 2:
Sealing elements are introduced as intermediary components between modular parts to ensure airtight connections. These dedicated sealing components handle the precision requirements locally, allowing the overall device to remain compact and portable without requiring high precision across all manufacturing interfaces.
2Reliability
If traditional ventilator design is used, then reliability is maintained, but device complexity and air leakage increase
Solution Approach 1:
Multiple functions are merged into integrated modules. The fan assembly module combines the blower, sealing elements, and mounting structures into a single unit, reducing the number of separate components and connections that could potentially leak, while maintaining system reliability through modular design.
Solution Approach 2:
The housing serves multiple functions: it provides structural support, contains the breathing circuit, houses the control electronics, and provides sealing interfaces for modular assembly. This multi-functionality reduces the number of separate components needed, simplifying the overall device while maintaining reliability.
3Loss of substance
If modular fan assembly with sealing elements is used, then air leakage is reduced, but device complexity increases
Solution Approach 1:
The sealing elements are nested within the modular fan assembly structure, with the blower positioned within the housing and sealing elements positioned at the interfaces. This nested arrangement minimizes the number of external sealing components needed, reducing air leakage while keeping the assembly relatively simple.
4Ease of operation
If touchscreen display with large area ratio is used, then ease of operation is improved, but device complexity and manufacturing precision worsen
Solution Approach 1:
The touchscreen display is integrated directly into the housing front panel as a unified component rather than being a separate assembly. This merging of the display with the housing structure simplifies manufacturing and assembly while providing a large display area for 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 design provides efficient, portable ventilation with minimal air leakage, reducing the risk of gas buildup and enhancing safety in emergency situations.
Implementation Method 1
a blower configured to generate airflow and generate positive pressure ventilation
Implementation Method 2
a control fan configured to vent heat from within the housing when a temperature of the housing reaches a predetermined amount
Data Source
AI summary
A ventilator including a housing having a front panel, and a rear panel opposite the front panel and configured to couple to the front panel, and a modular fan assembly disposed within the housing. The modular fan assembly includes a blower configured to generate airflow and generate positive pressure ventilation.


