Flexible Neck Fan Shell With Static Blades for Focused Cooling

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Solution Overview

Problem

Conventional portable fans are uncomfortable to wear for extended periods due to their fixed shape, limiting user experience and adaptability to different neck sizes.

Innovation Solution

A neck fan design featuring a shell with adjustable bending angles, a fan assembly, and a wind guide system that includes static blades to concentrate airflow, allowing for comfortable wear and efficient air distribution around the neck.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a fixed-shaped portable fan is used, then the structure is simple and easy to manufacture, but the user comfort and adaptability to different neck sizes deteriorate

Engineering Contradiction:
Improvestructure simplicityVSAvoidadaptability to different neck sizes
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The neck fan shell is designed with flexible connection portions that allow the shell to be bent into different shapes and angles. The connection portions include flexible circuits and hinges that enable the shell to adapt to different neck circumferences and user positions, transforming a rigid structure into a dynamic, adaptable form factor.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The shell incorporates flexible connection portions with flexible circuits and hinge structures that allow the shell to bend and conform to different neck sizes. This flexible shell design enables the fan to adapt to various user anatomies while maintaining structural integrity and electrical connectivity.

Inventive Principle:
Principle #30Flexible shells and thin films

2Device complexity

If a fixed-shaped portable fan is used, then the device complexity is low, but the user comfort during extended wear deteriorates

Engineering Contradiction:
Improvedevice structure complexityVSAvoiduser comfort during wear
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The flexible connection portions with hinges allow the shell to be adjusted to comfortable angles and positions. Users can bend the shell to face different directions (front, back, sides) and adjust the fan orientation to blow air toward the face or back, significantly improving comfort during extended wear.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The shell is divided into multiple portions connected by flexible joints, allowing independent adjustment of each section. This segmentation enables the fan to be positioned and oriented in various configurations to suit different user preferences and comfort requirements.

Inventive Principle:
Principle #1Segmentation

3Quantity of substance

If airflow is not concentrated, then the air distribution is diffuse, but the cooling efficiency and airflow directionality deteriorate

Engineering Contradiction:
Improveairflow volume distributionVSAvoidcooling efficiency
Core Design Contradiction:
Quantity of substanceVSProductivity

Solution Approach 1:

The wind guide member extracts and concentrates the airflow from the fan blades into a focused stream. By positioning the wind guide member at the air outlet and designing its blades to align with the fan blade angles, the system channels the airflow in a specific direction, creating a concentrated cooling effect rather than diffuse air distribution.

Inventive Principle:
Principle #2Taking out (Extraction)

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 neck fan provides effective cooling by directing airflow efficiently around the neck, enhancing user comfort and adaptability to various neck sizes, while reducing noise and wind intensity.

Implementation Method 1

a fan assembly, configured to generate an airflow

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Implementation Method 2

The plurality of static blades are spaced apart from each other having an equal interval, the plurality of static blades are configured to concentrate the airflow and to guide the airflow to continue flowing

Methodology Applied
Scientific EffectFluid flow guidance:

Data Source

PatentUS20240102488A1Neck fan
Publication Date: 2024.03.28 SHENZHEN JISU TECHNOLOGY CO LTD
  • US20240102488A1 patent drawing
  • US20240102488A1 patent drawing
  • US20240102488A1 patent drawing

AI summary

A neck fan and a fan assembly are provided. The fan assembly includes: a first air guiding assembly, configured to intake air and to generate an airflow; a second air guiding assembly, fluidly communicated to the first air guiding assembly and disposed at a downstream of the airflow generated by the first air guiding assembly. The second air guiding assembly comprises a plurality of static blades, the plurality of static blades are spaced apart from each other having an equal interval, the plurality of static blades are configured to concentrate the airflow and to guide the airflow to continue flowing.