Combination Built-In Air Flow Mechanism And Led Kill Chamber

What is this patent about?

’573 is related to the field of indoor air quality and lighting, specifically addressing the problem of maintaining proper air circulation and purification while providing adequate illumination in enclosed spaces. Traditional HVAC systems often struggle to provide uniform air distribution, and LED lighting, while energy-efficient, can suffer from heat buildup, reducing their lifespan. The patent seeks to integrate these functions into a single unit that can be easily installed in existing ceiling grids or other building structures.

The underlying idea behind ’573 is to combine an axial fan with an LED lighting system within a standard ceiling tile or light fixture footprint. The key inventive insight is to use the fan to not only circulate air within the room but also to actively cool the LED lights, thereby improving their efficiency and longevity. Furthermore, the design incorporates an optional UV-C light source within a contained chamber to irradiate and neutralize airborne contaminants as air passes through the unit.

The claims of ’573 focus on an air purifying device comprising a panel with a vent and a fan portion. A cover defines an airway between the fan and vent. A fan guides air to the airway, where a UV-C light source (200-280nm) is mounted. An air diversion mechanism directs air to a UV-C kill chamber housing the UV light. A baffle in the kill chamber prevents UV light from escaping. Another claim focuses on a recessed fixture with a UV-C kill chamber formed by upper and lower baffles. A fan directs air through the chamber, and a light protection plate near the vent prevents UV light from exiting.

In practice, the invention utilizes an axial fan to draw air into the unit, directing it through a specially designed airway. This airway incorporates a UV-C light source, creating a 'kill zone' where airborne contaminants are irradiated. Baffles and reflective surfaces within the airway enhance the UV-C exposure, maximizing the disinfection process. The air then exits the unit, now both purified and having helped to cool the LED lighting components.

The differentiation from prior approaches lies in the integrated design and the specific use of the fan for both air circulation and LED cooling. Traditional systems typically address these issues separately. Furthermore, the inclusion of a contained UV-C disinfection system within a standard ceiling tile or light fixture provides a convenient and effective way to improve indoor air quality without exposing occupants to harmful UV radiation. The baffle system is crucial for safety, ensuring that UV-C light remains contained within the unit.