Nanoparticulate-trapping filter for hard disk drive

摘要

A hard disk drive (HDD) filter assembly may include an inlet for receiving an input gas, a cyclonic particle separator configured for separating certain sized particulates from the gas, and a trap chamber for securing the particulates separated from the gas. Such a filter assembly may be designed and configured to separate and secure nanoparticulates from the input gas, such as nanoparticulates with diameters less than around 100 nm. A filter assembly may further include a desiccant chamber for controlling the humidity of the cleaned gas and a membrane for absorbing and/or adsorbing some remaining particulates from the gas before the gas enters the main chamber of the HDD.

主权项

1. A hard disk drive filter assembly sized to fit within a hard disk drive, the filter assembly comprising:
an inlet configured to mate with a hard disk drive inlet and for receiving an input gas; a cyclonic particle separator configured for separating solid particulates from said gas that enters said cyclonic particle separator; a trap chamber configured for securing separated particulates; a desiccant chamber into which said gas flows after flowing through said cyclonic particle separator, wherein said desiccant chamber contains a desiccant for controlling the humidity of said gas; a membrane configured for absorbing and/or adsorbing remaining particulates from said gas; a housing in which said cyclonic particle separator, said trap chamber, said desiccant chamber and said membrane are housed; and an outlet through which said gas exits said filter assembly.