Researchers Submit Patent Application, “Fans In Series With Cable Plug Interfaces”, for Approval (USPTO 20190200487)

Technology Business Daily |

2019 JUL 12 (NewsRx) -- By a News Reporter-Staff News Editor at Technology Business Daily -- From Washington, D.C., NewsRx journalists report that a patent application by the inventors Coteus, Paul W. (Yorktown, NY); Takken, Todd Edward (Brewster, NY); Tian, Shurong (Mount Kisco, NY); Yao, Yuan (Tarrytown, NY); Zhang, Lisha (Yorktown Heights, NY), filed on , was made available online on .

The patent’s assignee is International Business Machines Corporation (Armonk, New York, United States).

News editors obtained the following quote from the background information supplied by the inventors: “This section is intended to provide a background or context to the invention disclosed below. The description herein may include concepts that could be pursued, but are not necessarily ones that have been previously conceived, implemented, or described. Therefore, unless otherwise explicitly indicated herein, what is described in this section is not prior art to the description in this application and is not admitted to be prior art by inclusion in this section.

“Traditional designs for computer racks have cables on a single tailstock. If cooling fans are integrated in a drawer, the fans are typically located at the other end of the drawer, the far end from the cable plug and cable exit locations. This is particularly true when the cable ends contain active elements that require cooling.

“Limitations of this type of drawer configuration include limiting the number of standard-sized cables that can be used in any given drawer. The typical alternatives would be to employ specially designed cables which would be cost prohibitive or to use double-sized drawers which would then would increase the overall volume of computing equipment, which again could become a cost issue.

“In order to double the number of cables per drawer without incurring the costs and other limitations noted above, cables have been arranged on both tailstocks and fans have been arranged inside the drawer between the tailstock and the switch chips or other computing electronics. However, this arrangement increases the distances from the switch chips to the cable ends. In future designs with higher signaling rates such an increase in the distance between the cable ends to switch chip may not be possible because, for instance, of the channel loss problems that arise from longer length of card trace between the cable end and the computing elements inside the drawer.

“The current invention moves beyond the current techniques and/or materials.

“Abbreviations that may be found in the specification and/or the drawing figures are defined in the text where appropriate.”

As a supplement to the background information on this patent application, NewsRx correspondents also obtained the inventors’ summary information for this patent application: “This section is intended to include examples and is not intended to be limiting. The word ‘exemplary’ as used herein means ‘serving as an example, instance, or illustration.’ Any embodiment described herein as ‘exemplary’ is not necessarily to be construed as preferred or advantageous over other embodiments. All of the embodiments described in this Detailed Description are exemplary embodiments provided to enable persons skilled in the art to make or use the invention and not to limit the scope of the invention which is defined by the claims.

“An example of an embodiment of the present invention is an apparatus with a drawer of computing elements where that drawer has cables with cable ends, plug locations for the cable ends, cooling fans, and computing electronics, where the plug locations of the cable ends, for the cables exiting a drawer of computing electronics, are located in series along an airflow direction between the cooling fans and the computing electronics and the cables exit from the plug locations in the direction of the cooling fans.”

The claims supplied by the inventors are:

“1. An apparatus comprising a drawer of computing elements comprising: cables with cable ends; plug locations for the cable ends; cooling fans; computing electronics, wherein the plug locations of the cable ends, for the cables exiting a drawer of computing electronics, are located in series along an airflow direction between the cooling fans and the computing electronics, and wherein the cables exit from the plug locations in the direction of the cooling fans, and wherein the cooling fans are provided on both tailstocks of the drawer; a main electromagnetic interference (EMI) shield surrounding at least the computing electronics in the drawer, wherein the fans are located inside the main EMI shield; and an air blocker, wherein the air blocker forms both an air and EMI seal for each of the cables, rather than at the cable ends, and wherein the air blocker prevents both air and electromagnetic radiation beyond the fans, and wherein the air blocker is formed as an air-and-EMI guard by one or more layers of a deformable electrically conductive material and is held in the drawer between two or more cooling fans.

“2. The apparatus of claim 1, wherein there are no separable connectors along the cables at the point where the cables pass the cooling fans and exit the drawer.

“3. (canceled)

“4. The apparatus of claim 3, wherein the fans are located outside the main EMI shield.

“5. (canceled)

“6. The apparatus of claim 5, wherein the main EMI shield is common to the entire drawer.

“7. The apparatus of claim 2, further comprising an air blocker. wherein the air blocker forms an air seal along each of the cables rather than at the cable ends, and wherein the air blocker prevents air recirculation that would bypass the fans.

“8. (canceled)

“9. The apparatus of claim 7, wherein the air blocker is formed by one or more layers of a deformable material, and wherein the cables are easily removable from the air blocker for installation and servicing.

“10. The apparatus of claim 1, wherein the deformable electrically conductive material makes both an air and EMI seal to the exterior of the cables.”

For additional information on this patent application, see: Coteus, Paul W.; Takken, Todd Edward; Tian, Shurong; Yao, Yuan; Zhang, Lisha. Fans In Series With Cable Plug Interfaces. Filed and posted . Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220190200487%22.PGNR.&OS=DN/20190200487&RS=DN/20190200487

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