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Personal Computer Air Filter

IP.com Disclosure Number: IPCOM000100674D
Publication Date: 2005-Mar-16
Document File: 2 page(s) / 54K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method that incorporates an air filtration unit within a personal computer. Benefits include preventing particle build-up within the PC, which can cause thermal degradation of the components and fan failure.

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Personal Computer Air Filter

Disclosed is a method that incorporates an air filtration unit within a personal computer. Benefits include preventing particle build-up within the PC, which can cause thermal degradation of the components and fan failure.

Background

Currently, sensitive electronic devices are not protected from particle build-up that can cause thermal degradation of the components, fan failure, and potential fire hazards.

General Description

In the disclosed method, the air filtration unit purifies the air by moving it through a tightly woven filter (i.e. fiber-glass paper) trapping particulate matter down to 0.3 microns (see
Figure 1). The air filter unit is attached to any area of the PC where venting draws airflow into it. One implementation may attach the air filter to the front of a PC. Air is drawn through the filter with a large fan pulling the air. The filtered air, after passing through the fan blades and past the motor, is pushed through the PC, then exits via the venting located in the rear and side panels. The internal fans typically used within a PC can be removed, providing a cost reduction to the PC system.

The fan can run at different speeds via an external switch, or by using software controls on the PC. The minimum fan speed setting meets the thermal needs of the system. The software also tracks the length of time that the filter has been in service. Additionally, using typical thermal couples within the PC chassis, the average increase in temp...