Multi-Inlet Handheld Fan Housing for Compact Airflow
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Solution Overview
Problem
Existing handheld fans face a trade-off between compactness and performance reliability, with compact designs often failing to meet air intake volume requirements for high-speed operation.
Innovation Solution
A modular handheld fan design with a fan housing and handheld housing that are buckled together, featuring multiple air inlets and a control system with a display, ensuring sufficient air volume and high-performance operation while maintaining a compact structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the overall structure is made compact to achieve portability, then the compactness is improved, but the air intake volume does not meet the performance requirements
Solution Approach 1:
The fan housing is divided into multiple sections with separate air inlets: front air inlet, rear air inlet, and side air inlets. This segmentation allows air to be drawn from multiple directions simultaneously, increasing total air intake volume while keeping the overall fan size compact and portable.
Solution Approach 2:
Air intake is not limited to a single direction but is extended to three dimensions by adding front, rear, and side air inlets. This multi-directional air intake design enables the compact fan to gather sufficient air from all surrounding directions, resolving the contradiction between small size and adequate air volume.
2Ease of manufacture
If the fan housing and handheld housing are buckled together for compact assembly, then the ease of manufacture is improved, but the air intake volume may be compromised
Solution Approach 1:
The fan housing is segmented into front and rear portions that are buckled together, creating a modular structure. This segmentation allows each section to be optimized for its function: the front portion houses the air outlet and display, while the rear portion provides additional air intake and battery space, achieving both easy assembly and sufficient air volume.
Solution Approach 2:
The control main board is nested within the handheld housing, and the battery is positioned in the rear housing body. This nesting arrangement maximizes space utilization within the compact buckled structure, ensuring that air intake channels remain unobstructed while accommodating all necessary components.
Data Source
AI summary
A handheld fan, comprising an air supply part and a handheld part, wherein the air supply part comprises a fan housing and a fan assembly arranged in the fan housing; the fan housing comprises a cover body, an air outlet accessory arranged at a front end of the cover body, a rear air inlet accessory arranged at a rear end of the cover body, and side air inlet accessories arranged at both sides of the cover body; the fan assembly is mounted in the cover body, and its air outlet is connected to the air outlet accessory. The invention has a reasonable structure, beautiful shape, high ornamental value, compact structure, easy operation, and multi-faceted air inlet, which provides sufficient air volume for the high-speed running fan, so that the handheld fan maintains high-performance operation and improves the user experience.