Foldable Handheld Fan Structure for Compact Storage and Easy Assembly

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Solution Overview

Problem

Existing handheld fans face issues of large volume, large space occupation, inconvenient storage, high manufacturing cost, and difficult assembly, along with a single fixing method.

Innovation Solution

A foldable handheld fan design featuring a rotatable fan head connected to a connecting component with a storage space above the fan main body, allowing the fan head to transition between storage and working states, and a split shell structure for easy assembly and reduced weight.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the fan head is fixed in a traditional non-foldable manner, then the structure is simple and easy to manufacture, but the volume is large and storage is inconvenient

Engineering Contradiction:
Improvefan volumeVSAvoidstructure complexity
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The fan head is designed to be stored within the fan main body when not in use, similar to a nested doll structure. The connecting component provides a storage space that accommodates the fan head, allowing the fan to transition from an extended working state to a compact stored state, significantly reducing its volume for portability.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The fan head is made dynamically adjustable through a rotatable connection mechanism. It can rotate between a working position (extending outward for air blowing) and a stored position (folded into the storage space). This dynamic capability allows the fan to adapt its volume and shape based on usage requirements without compromising structural integrity.

Inventive Principle:
Principle #15Dynamics

2Ease of manufacture

If traditional fixed connection methods are used, then the manufacturing cost is low, but the assembly is difficult and manufacturing cost is high

Engineering Contradiction:
Improveassembly easeVSAvoidfixing method complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The connection mechanism is segmented into modular components including the connecting component with storage space, the rotatable fan head, and the fan main body. This segmentation allows each part to be manufactured independently using simple processes and then assembled together, improving both ease of manufacture and assembly while controlling overall device complexity.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS20260078769A1Foldable handheld fan
Publication Date: 2026.03.19 GUANGDONG AOYUN TECHNOLOGY CO LTD
  • US20260078769A1 patent drawing
  • US20260078769A1 patent drawing
  • US20260078769A1 patent drawing

AI summary

A foldable handheld fan includes a fan main body, a fan head connected to the fan main body, and a connecting component installed on the fan main body. The connecting component is provided with a storage space. The storage space is positioned above the fan main body. The fan head is rotatably connected to the connecting component. The fan head includes a storage state and a working state. In the storage state, at least one part of the fan head is stored in the storage space. The fan head is also rotatable relative to the connecting component in the storage state to enter the working state. In the working state, the fan head is capable of blowing air outwards.