Cooling module for electronic equipment

• US 4,648,007 A
• Filed: 10/28/1985
• Issued: 03/03/1987
• Est. Priority Date: 10/28/1985
• Status: Expired due to Fees

• Current Assignee: AG Communication Systems Corp. (Nokia Corporation)
• Original Assignee: GTE Communications Corporation (Verizon Communications Inc.)
• Inventors: Garner, Robin E.
• Primary Examiner(s): Pellinen, A. D.
• Assistant Examiner(s): Ginsburg, Morris
• Application Number:
  US06/791,828
• Time in Patent Office: 491 Days
• Field of Search: 361/384, 165/101, 165/137, 98/116, 98/121.1, 98/121.2
• US Class Current: 361/695
• CPC Class Codes: H05K 7/20572 within cabinets for removing heat from sub-racks, e.g. plenum

Abstract

A module for cooling equipment mounted in a frame. The module includes a plenum positioned between an upper portion and a lower portion of electronic equipment and a panel positioned across the plenum to occlude it. The panel is of multiplanar arcuate construction including a first, a second and a third panel portion each provided with an aperture in which is mounted to a fan. A pair of vanes between adjacent fans are provided. The vanes align themselves with the air flow from adjacent fans when both adjacent fans are operational and position themselves across the aperture of an adjacent fan when failed.

Claims

1. A fan pack mounted in both an upper portion and a lower portion of an equipment frame for cooling electronic equipment, said fan pack comprising:

a plenum located between said upper and said lower equipment portions, said plenum receiving via an intake port cooling air from said lower portion of said equipment frame and adapted to exhaust said cooling air to said upper portion of said equipment frame via an exhaust port;

a panel of arcuate multiplanar construction mounted in said plenum occluding same;

a plurality of apertures formed in said panel;

a plurality of fans each located adjacent to at least one other of said fans and each mounted adjacent to a different one of said apertures, said fans arranged in an arcuate configuration, operated to draw said cooling air from said lower portion of said equipment frame and to exhaust said air to said upper portion of said equipment frame; and

a plurality of vanes each positioned between adjacent ones of said fans, said vanes operated during simultaneous operation of all of said fans to a position between the direction of movement of said cooling air exhausting from said adjacent ones of said fans, and said vanes further operated in the event of failure of a single one of said fans to at least partly occlude said fan thereby to prevent reverse flow of said cooling air through said failed fan.

2. A fan pack as claimed in claim 1, wherein:

said panel includes a first portion of planar construction perpendicular to an axis centrally passing through said intake port and said exhaust port.

3. A fan pack as claimed in claim 2, wherein:

said panel includes a second portion of planar construction oriented at an acute angle to said axis.

4. A fan pack as claimed in claim 3, wherein:

said panel includes a third panel portion oriented at an opposite acute angle to said axis.

5. A fan pack as claimed in claim 4, wherein said first panel portion is laterally centered within said plenum.

6. A fan pack as claimed in claim 5, wherein:

said second panel portion is positioned between said first panel portion and an adjacent plenum sidewall on a first side of said first panel portion.

7. A fan pack as claimed in claim 6, wherein:

said third panel portion is positioned between said first panel portion and an opposite adjacent plenum sidewall on a second side of said first panel portion.

8. A fan pack as claimed in claim 1, wherein:

said vanes are of planar construction.

9. A fan pack as claimed in claim 2, wherein:

said vanes are each adapted to pivot about a vane pivot passing through a lower end of said vane, said vane pivot being perpendicular to said axis and also perpendicular to a front and a rear wall of said plenum.

10. A fan pack as claimed in claim 3, wherein:

said first, and said second panel portions are joined in a line perpendicular to said axis and perpendicular to a front and a rear wall of said plenum.

11. A fan pack as claimed in claim 10, wherein:

said vanes are positioned for pivotal movement about an axis proximate and parallel to said first and said second panel portion joining line.

12. A fan pack as claimed in claim 1, wherein:

a first one of said vanes is positioned in a first direction, said positioned first vane operated to concentrate air flow from a first one of said fans to produce a channel of increased air flow from said exhaust port;

a second one of said vanes positioned in a second direction, said first and said second vanes positioned toward each other to produce a channel of increased air flow in said exhaust port between said first and said second vanes.

13. A fan pack as claimed in claim 1, wherein:

said vanes are pivoted at a lower end of a body portion of said vane.

14. A fan pack as claimed in claim 1, wherein:

said vanes are positioned upward of said fans.

15. A fan pack as claimed in claim 1, wherein:

said vanes are each of essentially nonweighted construction and conform to air flow from adjacent fans, whereby to produce in conjunction with an upper portion of said plenum uniform air flow to said upper portion of equipment frame.

16. A fan pack as claimed in claim 15, wherein:

in the event of failure of one fan, said vanes positioned between adjacent ones of said operated fans adjust to an expanded air flow from said operated fans.