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Wearable air purification device

An air purification equipment and air technology, which can be used in life-saving equipment, protective devices against harmful chemicals, respiratory protection containers, etc., and can solve the problems of increased size, weight and power consumption.

Inactive Publication Date: 2017-08-29
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] While greater resilience against wind disturbances is possible by implementing more powerful fan elements, this would require a significant increase in device size, weight and power consumption

Method used

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Embodiment Construction

[0060] The present invention provides a wearable air purification device that actively generates a propelled stream of purified air for direct delivery to an area adjacent to the user's mouth or nose for direct inhalation by the user. The air chamber includes a flexible diaphragm adapted to float between two extreme positions, thereby changing the volume within the chamber and alternately drawing air into and blowing out of the chamber. The filter element is arranged in or around the air chamber and is aligned to communicate with the air diverted by the membrane on the chamber inlet or on the chamber outlet for particulate and / or gaseous contaminants active removal. Embodiments of the invention may include a plurality of such air chamber assemblies arranged to collectively deliver a continuous flow of air to the breathing zone of a user.

[0061] The present invention is based on the idea of ​​incorporating synthetic jet generator technology into a wearable air purification d...

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Abstract

The invention provides a wearable air purification device which actively generates a propelled stream of purified air for direct delivery to a region proximal to a user's mouth or nose for their immediate inhalation. An air chamber comprises a flexible diaphragm adapted to fluctuate between two extreme positions, thereby altering the volume within the chamber and alternately sucking and blowing air into and out of the chamber. Filtration elements are arranged in said air chamber. The filtration elements are arranged so as to make fluid communication with air displaced into the air chamber and, to make fluid communication with air displaced out of said chamber so that air is cleaned as it passes both into, and out of, the air chamber. The filtration elements actively remove particulate or gaseous pollutants. Embodiments of the invention may comprise a plurality of such air chamber assemblies, arranged so as to collectively deliver a continuous flow of air to a breathing zone of the user.

Description

technical field [0001] The present invention relates to wearable air purification or filtration devices, and more particularly to powered devices that avoid the need for the user to breathe heavily through the filter. Background technique [0002] Particulate matter (PM10 and PM2.5) and harmful gases (such as SO 2 , NO x , CO and O 3 ) are globally identified as major pollutants in surrounding urban environments. In recent years, concentrations of these pollutants have frequently reached dangerously high levels in many large cities, posing serious health risks to residents and leading to a very urgent need for respiratory protection for people with daily outdoor activities. [0003] Mask-based technologies are usually the first choice for passive respiratory protection. While filtering masks are very lightweight and they are advantageous as a wearable solution, they are at the same time uncomfortable to wear due to the high breathing resistance experienced by the user. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62B23/02A62B17/00A61M16/10
Inventor 柯锐C·齐默H·R·乔斯玛T·T·阮G·库伊杰曼
Owner KONINKLJIJKE PHILIPS NV
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