Modular Fan Assembly with Detachable Stator and Diffuser Positioning
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Solution Overview
Problem
Existing fans, particularly those used in vacuum cleaners, have complex structures that are cumbersome to assemble and are noisy, making them inconvenient for mechanized production and user application.
Innovation Solution
A fan design featuring a modular structure with a fluid module that includes a fan blade and an axial diffuser with a positioning mechanism, and a stator module that is detachably connected to the diffuser with a matching positioning mechanism, allowing for simplified assembly and reduced noise through increased dynamic and static gaps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a traditional fan structure is used, then the fan can generate airflow, but the structure becomes complex and cumbersome to assemble
Solution Approach 1:
The fan is divided into independent modules: a stator module (including motor stator, diffuser, and end covers) and a rotor module (including motor rotor and fan blade). These modules are manufactured separately and then assembled together through a simple connection structure, significantly reducing assembly complexity and enabling mechanized production.
2Object-affected harmful factors
If the fan components are closely positioned to reduce size, then the device becomes compact, but dynamic and static interference increases causing noise
Solution Approach 1:
An air inlet channel is introduced as an intermediary space between the rotor and stator components. This channel provides adequate spacing that prevents dynamic and static interference between rotating and stationary parts, thereby reducing noise while maintaining a compact overall structure through optimized airflow path design.
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 modular design simplifies assembly, making it suitable for mechanized production, and reduces noise by minimizing dynamic and static interference, thereby improving the efficiency and usability of the fan.
Implementation Method 1
the diffuser vanes connect the outer cylinder and the main body, and divide an annular space between the outer cylinder and the main body into a plurality of diffusion ducts
Data Source
AI summary
A fan and a cleaning apparatus. The fan comprises: a fluid module for generating and guiding an airflow, the fluid module comprising a diffuser which has a first positioning mechanism; and a stator module detachably connected to the diffuser, the stator module being provided with a second positioning mechanism adaptive to the first positioning mechanism. The fan uses a modular structure, is simple to assemble, and is suitable for mechanical production.