Wearable Cooler
Overview
This innovation is a wearable cooling device using Coanda effect and induced airflow. With high‑speed motor and curved nozzles, it delivers focused, body‑hugging airflow for efficient cooling. Lightweight, modular, waist‑wearable or desktop, it outperforms traditional fans in cooling power and energy efficiency.
Technical name of innovation
Coanda Induced Airflow Wearable Cooler
Research completion
Ongoing
Commercialisation opportunities
Technology licensing, exclusive licensing, product sales, bulk customization, OEM/ODM
Problem addressed
Traditional wearable cooling fans suffer from scattered airflow, low efficiency, bulkiness, and poor battery life. They fail to provide efficient, portable, comfortable personal cooling for outdoor, industrial, and mobile scenarios, leading to discomfort and health risks in high temperatures.
Innovation
- Adopts Coanda effect and induced airflow with curved narrow nozzles for body‑hugging airflow. Paired with high‑speed brushless motor, it greatly improves cooling efficiency and wind speed over traditional fans.
- Features dual symmetric curved nozzles to generate opposite surround airflow for even body coverage. With adjustable speed control, it meets various cooling needs in different environments.
- Overall modular and lightweight design with swappable battery and fan cover. Supports waist-worn, handheld, desktop use; easy setup without major modifications.
Key impact
- Greatly outperforms similar products in cooling power and efficiency, delivering stronger cooling at the same power, saving energy and extending usage time.
- Ultra-light at only 153.4g, portable and comfortable for long-time wearing or holding without burden.
- Modular design with quickly replaceable battery and nozzle, suitable for industrial, outdoor, sports and other high-temperature scenarios.
- Easy to use without modification; dustproof and durable design, ideal for mass production and commercial promotion.
Application
- Personal cooling for outdoor workers, construction and industrial staff
- Portable cooling for sports, outdoor activities and travel
- Professional cooling for police, firefighters and high-temp workers
- Smart wearables, consumer electronics and personal cooling devices
The Hong Kong Polytechnic University (PolyU)
With over 80 years of proud tradition and ranking among the world’s top 100 institutions, The Hong Kong Polytechnic University (PolyU) aspires to be a leading university with world-class research and education.
PolyU is a home for educating thinkers, discoverers, innovators and communicators in delivering positive impact. We are committed to nurturing tomorrow’s leaders today, through a holistic education that provides graduates unrivaled placements to thrive in communities, industries and businesses.
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