Airflow management in an information handling system (IHS) chassis

Patent metadata

Field	Value
Publication number	US-10271455-B2
Application number	US-201715709060-A
Country	US
Kind code	B2
Filing date	Sep 19, 2017
Priority date	Sep 19, 2017
Publication date	Apr 23, 2019
Grant date	Apr 23, 2019

Abstract

Systems and methods for airflow management in an Information Handling System (IHS) chassis are described. In some embodiments, an air shroud may include a frame configured to be coupled to a rear portion of a sled insertable into a chassis of an IHS, a first flapper coupled to the frame via a first spring. and a second flapper coupled to the frame via a second spring.

First claim

The invention claimed is:

1. An air shroud, comprising:
a frame configured to be coupled to a rear portion of a sled insertable into a chassis of an Information Handling System (IHS), wherein the sled includes an extensible rail, and wherein a Printed Circuit Board (PCB) coupled to a backplane within the chassis is removable from the sled by extending the extensible rail while the sled remains static with respect to the chassis;
a first flapper coupled to the frame via a first spring, wherein the first spring is configured to apply a first closing force to the first flapper; and
a second flapper coupled to the frame via a second spring, wherein the second spring is configured to apply a second closing force to the second flapper.

2. The air shroud of claim 1 , wherein each of the first and second flappers includes one or more orifices.

3. The air shroud of claim 2 , wherein the one or more orifices of each flapper are square-shaped orifices disposed in a 2×14 perforation matrix.

4. The air shroud of claim 1 , wherein the sled is configured to hold a component, wherein the component is mounted on the PCB via a connector, and wherein the connector is coupled to another connector of the backplane when the PCB is inserted into the sled.

5. The air shroud of claim 4 , wherein the PCB includes a plurality of storage devices coupled thereto.

6. The air shroud of claim 4 , wherein the PCB includes a bracket configured to:
oppose the first and second closing forces of the first and second springs; and
open the first and second flappers when the PCB is inserted into the sled by retracting the extensible rail.

7. An Information Handling System (IHS) chassis, comprising:
a body having a slot; and
a sled inserted in the slot, wherein the sled includes a rear end coupled to an air shroud that faces a back portion of the IHS chassis, wherein the sled includes an extensible rail, and wherein a Printed Circuit Board (PCB) coupled to a backplane within the IHS chassis is removable from the sled by extending the extensible rail while the sled remains static with respect to the chassis, the air shroud further comprising:
a frame configured to be coupled to the rear end;
a first flapper coupled to the frame via a first spring, wherein the first spring is configured to apply a first closing force to the first flapper; and
a second flapper coupled to the frame via a second spring, wherein the second spring is configured to apply a second closing force to the second flapper.

8. The IHS chassis of claim 7 , wherein each of the first and second flappers includes one or more orifices.

9. The IHS chassis of claim 7 , wherein the one or more orifices of each flapper are square-shaped orifices disposed in a 2×14 perforation matrix.

10. The IHS chassis of claim 7 , wherein the PCB further comprises an IHS component mounted thereto.

11. The IHS chassis of claim 7 , wherein the PCB comprises a bracket configured to:
oppose the first and second closing forces of the first and second springs; and
open the first and second flappers as the component is inserted into the sled in response to a user retracting the extensible rail.

12. An Information Handling System (IHS), comprising:
a chassis;
a backplane coupled to the chassis;
a sled insertable into a slot in the chassis, wherein the sled includes an extensible rail, and wherein a Printed Circuit Board (PCB) coupled to the backplane is removable from the sled by extending the extensible rail while the sled remains static with respect to the chassis, and wherein the sled is coupled to an air shroud, the air shroud further comprising:
a frame configured to be coupled to the rear end;
a first flapper coupled to the frame via a first spring, wherein the first spring is configured to apply a first closing force to the first flapper; and
a second flapper coupled to the frame via a second spring, wherein the second spring is configured to apply a second closing force to the second flapper.

13. The IHS of claim 12 , wherein the PCB is coupled to a bracket configured to oppose the first and second closing forces of the first and second springs upon contact with the first and second flappers when the PCB is inserted into the sled.

14. The IHS of claim 13 , wherein the bracket is configured to control an amount of an opening between the first and second flappers as the PCB is partially inserted or removed from the sled.

Assignees

• Dell Products Lp

Inventors

• Cho Shih-Huai
• Lee Benson

Classifications

• H05K7/20727 Primary

  within server blades for removing heat from heat source · CPC title

• H05K7/20145 Primary

  Means for directing air flow, e.g. ducts, deflectors, plenum or guides · CPC title

• G06F1/20

  Cooling means · CPC title

• G06F1/183

  Internal mounting support structures, e.g. for supporting printed circuit boards · CPC title

• G06F1/182

  with special features, e.g. for use in industrial environments; grounding or shielding against radio frequency interference [RFI] or electromagnetical interference [EMI] · CPC title