Necklace-type fan
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Solution Overview
Problem
Conventional necklace-type fans cause neck stress, miliaria, and abrasion due to uneven wind distribution and constant tension, and require manual adjustment for optimal airflow.
Innovation Solution
A necklace-type fan with a curved tube-shaped necklace part featuring multiple wind blowing holes, a wind generation part with adjustable fan speed, and a control unit that automatically changes wind intensity based on external signals, ensuring even airflow and reducing skin irritation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the fan is made small to be portable, then it can be carried in a bag or pocket, but it becomes too large to fit in pockets and requires hand holding
Solution Approach 1:
The fan is segmented into two main parts: a necklace part that can be worn around the neck and a separate handle portion. This segmentation allows the fan to be worn hands-free like jewelry while maintaining the functionality of a handheld fan when needed.
Solution Approach 2:
The fan design combines multiple functions: it can be worn around the neck for hands-free operation, held in hand when needed, and the necklace part itself serves as both a structural support and a wind blowing component with holes that discharge air.
2Productivity
If the necklace type fan is fixed close to the user's neck and face, then wind can be supplied close to the face, but stress is applied to the rear portion of the neck causing miliaria
Solution Approach 1:
The wind blowing function is segmented from a single location to multiple locations along the necklace part. Multiple holes are distributed along the necklace, allowing wind to be supplied to different areas (face, front neck, rear neck) simultaneously, reducing the need for tight positioning.
Solution Approach 2:
The wind distribution transitions from a single-point discharge (conventional fan) to a distributed linear discharge along the necklace circumference. This dimensional change allows wind to reach multiple body areas simultaneously without requiring the fan to be positioned tightly against one specific location.
3Ease of operation
If the small-sized fan is hung from the neck through a thin strap, then it can be worn around the neck, but the strap swings like a pendulum causing abrasion to the neck
Solution Approach 1:
The necklace part is merged with the fan housing into a single integrated structure. The necklace part itself serves as both the wearable component and the wind blowing component, eliminating the need for a separate thin strap that causes pendulum swinging and neck abrasion.
Solution Approach 2:
The necklace part is designed with a curved tube shape that conforms to the natural curvature of the human neck. This curved design allows the fan to be worn comfortably without requiring a rigid or thin strap, reducing friction and abrasion on the neck skin.
4Device complexity
If the fan blows wind only toward the top side, then the structure is simple, but the wind just reaches the front side of the neck and lower side of the chin requiring manual adjustment
Solution Approach 1:
The single wind blowing outlet is segmented into multiple holes distributed along the necklace part. This segmentation allows wind to be discharged in multiple directions simultaneously, covering the face, front neck, and rear neck areas without requiring manual adjustment of the fan position.
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 fan provides even wind distribution around the neck, prevents neck stress and irritation, and automatically adjusts wind intensity for comfort during prolonged use.
Implementation Method 1
a wind generation part which has an interior being in communication with the necklace part, and has a fan installed to pump the wind into the necklace part
Implementation Method 2
a control unit which adjusts a rotational speed of the fan, in which the wind introduced through the wind generation part is discharged through the wind blowing holes while being changed in intensity by the control unit
Data Source
AI summary
A necklace-type fan includes: a necklace part which has a curved tube shape, and has a plurality of wind blowing holes formed in a longitudinal direction of the necklace part; a wind generation part which has an interior being in communication with the necklace part, and has a fan installed to pump the wind into the necklace part; and a control unit which adjusts a rotational speed of the fan, wherein the wind introduced through the wind generation part is discharged through the wind blowing holes while being changed in intensity by the control unit.