The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 15, 2007
Filed:
Dec. 07, 2004
Robert Russell Wolford, Raleigh, NC (US);
Donna Casteel Hardee, Raleigh, NC (US);
Jimmy Grant Foster, Sr., Morrisville, NC (US);
Don Steven Keener, Apex, NC (US);
Robert Russell Wolford, Raleigh, NC (US);
Donna Casteel Hardee, Raleigh, NC (US);
Jimmy Grant Foster, Sr., Morrisville, NC (US);
Don Steven Keener, Apex, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An apparatus, system and method for cooling vertically stacked printed circuit boards (PCBs). In one embodiment, a first PCB is disposed within a substantially enclosed lower chamber inside a PCB containment housing. A second PCB is disposed above the first PCB within the housing to define a substantially enclosed upper chamber above the lower chamber. The second PCB includes one or more airflow apertures defined therethrough and providing vertical air flow coupling between the upper and lower chambers. An airflow actuating device is utilized to generate a primary forced airflow within the upper chamber which is substantially parallel to the surface plane of the second PCB. The primary forced airflow further induces a negative air pressure in the upper chamber such that a mixed convection airflow is established between the upper and lower chambers via the second PCB apertures.