Pivotable Nozzle Assembly for Head Wearable Air Purifier
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Solution Overview
Problem
Existing wearable air purifiers lack comfort and flexibility in directing filtered airflow to the user's face, often requiring mouth and nose coverage or restrictive designs that limit mobility and user comfort.
Innovation Solution
A head wearable air purifier with a nozzle assembly featuring pivotally connected end sections and a midsection, allowing for two degrees of freedom of motion, enabling the nozzle to conform closely to the user's face without contact, ensuring comfortable wear and effective airflow delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the nozzle assembly is made fixed and rigid, then the structural stability is improved, but the adaptability to different face shapes deteriorates
Solution Approach 1:
The nozzle assembly incorporates pivotable connections that allow dynamic adjustment of the nozzle's position and orientation. The first end section can pivot relative to the midsection about a first pivot axis, and the second end section can pivot relative to the midsection about a second pivot axis, enabling the assembly to adapt to different face shapes while maintaining structural integrity through controlled mechanical joints.
Solution Approach 2:
The nozzle assembly is divided into multiple segmented sections (first end section, midsection, second end section) that can move independently relative to each other. This segmentation allows each section to be positioned and oriented separately, providing adaptability to various face geometries while maintaining overall structural stability through the interconnected pivotable joints.
2Adaptability or versatility
If the nozzle assembly is made adjustable with multiple pivot points, then the adaptability to different face shapes is improved, but the device complexity increases
Solution Approach 1:
The complexity is managed by implementing only the necessary degrees of freedom - two pivot axes - that provide sufficient adaptability for different face shapes without over-engineering. The pivotable connections use simple mechanical joints that allow adjustment while maintaining a relatively compact and manageable structure.
Solution Approach 2:
The segmented design with three main sections (first end section, midsection, second end section) connected by pivot points provides adaptability through controlled division. This segmentation achieves the required flexibility without creating excessive complexity, as each segment serves a specific functional purpose and the connections are limited to two essential pivot axes.
3Productivity
If the nozzle assembly is positioned closely to the face, then the airflow delivery efficiency is improved, but the wearer comfort deteriorates due to contact
Solution Approach 1:
The dynamic pivotable connections enable the nozzle assembly to be positioned in close proximity to the user's face for efficient airflow delivery, while simultaneously allowing the assembly to be angled and oriented to avoid direct contact with the face. The two pivot axes provide the necessary degrees of freedom to achieve both close positioning and non-contact configuration.
Data Source
AI summary
A head wearable air purifier has a headgear, and an air purifier assembly supported by the headgear, the air purifier assembly having a filter and an airflow generator for generating an airflow through the filter. The head wearable air purifier has a nozzle assembly having an inlet aperture configured to receive a filtered airflow from the air purifier assembly, and an air outlet for emitting the filtered airflow from the nozzle assembly. The nozzle assembly includes a first end section connected to the headgear, a second end section connected to the headgear, and a midsection connected to the first end section and the second end section. The first end section has a first portion pivotally connected to the midsection about a first pivot axis, and a second portion pivotally connected to the first portion about a second pivot axis substantially orthogonal to the first pivot axis, the second portion connected to the headgear.