Interlock assembly for air-moving assembly

Patent metadata

Field	Value
Publication number	US-9648786-B2
Application number	US-201414499422-A
Country	US
Kind code	B2
Filing date	Sep 29, 2014
Priority date	Sep 29, 2014
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

Apparatuses and methods are provided for preventing removal of an air-moving assembly from a chassis when in operating state. The apparatus includes an interlock assembly having a slide element and one or more interlock elements. The slide element is slideably coupled to the air-moving assembly and resides in a first position when the air-moving assembly is in the operating state, and is slidable to a second position when the air-moving assembly is in a quiesced state. The slide element prevents removal of the air-moving assembly from the chassis in the first position, and allows removal of the air-moving assembly from the chassis in the second position. The interlock element(s) is associated with the slide element and prevents sliding of the slide element from the first position to the second position when the air-moving assembly is in the operating state.

First claim

What is claimed is:

1. An apparatus comprising:
an interlock assembly, the interlock assembly comprising:
a slide element which slideably couples to an air-moving assembly, the air-moving assembly being removable from a chassis within which the air-moving assembly resides when in an operating state, the slide element residing in a first position when the air-moving assembly is in the operating state, and being slidable to a second position when the air-moving assembly is in a quiesced state, wherein the slide element facilitates preventing removal of the air-moving assembly from the chassis in the first position, and allows removal of the air-moving assembly from the chassis in the second position; and
at least one interlock element associated with the slide element and preventing sliding of the slide element from the first position to the second position only when the air-moving assembly is in the operating state.

2. The apparatus of claim 1 , wherein the at least one interlock element physically contacts a feature associated with the air-moving assembly to prevent sliding of the slide element from the first position to the second position when the air-moving assembly is in the operating state.

3. The apparatus of claim 1 , wherein the at least one interlock element engages a plugged cable of the air-moving assembly to prevent sliding of the slide element from the first position to the second position when the air-moving assembly is in the operating state.

4. The apparatus of claim 3 , wherein the at least one interlock element comprises an interlock arm which extends from the side element and engages the plugged cable to prevent sliding of the slide element from the first position to the second position when the air-moving assembly is in the operating state.

5. The apparatus of claim 4 , wherein transitioning the slide element from the first position to the second position requires unplugging of the plugged cable, to transition the air-moving assembly from the operating state to a non-operating state, and to disengage the interlock aim from contact with the power cable.

6. The apparatus of claim 1 , wherein the interlock assembly further comprises at least one louver disposed at one of an air inlet or an air outlet of the air-moving assembly, the at least one louver pivoting between an operational orientation and a quiesced orientation, dependent on presence or absence, respectively, of airflow through the air-moving assembly, and wherein the at least one interlock element contacts a louver of the at least one louver to prevent sliding of the slide element from the first position to the second position when the at least one louver is in the operational orientation.

7. The apparatus of claim 6 , wherein the at least one interlock element extends from the slide element and engages at least one side edge of the louver when the at least one louver is in operational orientation, thereby preventing sliding of the slide element from the first position to the second position.

8. The apparatus of claim 7 , wherein the at least one interlock element comprises an interlock arm extending from the slide element.

9. The apparatus of claim 6 , wherein the interlock assembly further comprises multiple interlock elements, the at least one interlock element being at least one interlock element of the multiple interlock elements, and wherein the multiple interlock elements further comprise at least one other interlock element which engages a plugged cable of the air-moving assembly to farther prevent sliding of the slide element from the first position to the second position when the air-moving assembly is in the operating state.

10. The apparatus of claim 1 , wherein the slide element blocks, at least in part, access in the first position to at least one fastener securing the air-moving assembly within the chassis.

11. The apparatus of claim 1 , wherein the air-moving assembly comprises a centrifugal fan, and the interlock assembly is coupled to the air-moving assembly an air outlet thereof.

12. An apparatus comprising:
an air-moving assembly residing within a chassis when in an operating state, the air-moving assembly being removable from the chassis; and
an interlock assembly, the interlock assembly comprising:
a slide element slideably coupled to the air-moving assembly, the slide element residing in a first position when the air-moving assembly in the operating state, and being slidable to a second position when the air-moving assembly is in a quiesced state, wherein the slide element facilitates preventing removal of the air-moving assembly from the chassis in the first position, and allows removal of the air-moving assembly from the chassis in the second position; and
an interlock element associated with the slide element and preventing sliding of the slide element from the first position to the second position only when the air-moving assembly is in the operating state.

13. The apparatus of claim 12 , wherein the at least one interlock element physically contacts a feature associated with the air-moving assembly to prevent sliding of the slide element from the first position to the second position when the air-moving assembly is in the operating state.

14. The apparatus of claim 12 , wherein the at least one interlock element engages a plugged cable of the air-moving assembly to prevent sliding of the slide element from the first position to the second position when the air-moving assembly is in the operating state.

15. The apparatus of claim 14 , wherein the at least one interlock element comprises an interlock arm which extends from the slide element and engages the plugged cable to prevent sliding of the slide element from the first position to the second position when the air-moving assembly is in the operating state.

16. The apparatus of claim 12 , wherein the interlock assembly further comprises at least one louver disposed at one of an air inlet or an air outlet of the air-moving assembly, the at least one louver pivoting between an operational orientation and a quiesced orientation, dependent on presence or absence, respectively, of airflow through the air-moving assembly, and wherein the at least one interlock element contacts a louver of the at least one louver to prevent sliding of the slide element from the first position to the second position when the at least one louver is in the operational orientation.

17. The apparatus of claim 16 , wherein the at least one interlock element extends from the slide element and engages at least one side edge of the louver when the at least one louver is in operational orientation, thereby preventing sliding of the slide element from the first position to the second position.

18. The apparatus of claim 16 , wherein the interlock assembly further comprises multiple interlock elements, the at least one interlock element being at least one interlock element of the multiple interlock elements, and wherein the multiple interlock elements further comprise at least one other interlock element which engages a plugged cable of the air-moving assembly to further prevent sliding of the slide element from the first position to the second position when the air-moving assembly is in the operating state.

19. The apparatus of claim 12 , wherein the slide element blocks, at least in part, access in the first position to at least one fastener securing the air-moving assembly within the chassis.

Assignees

• IBM

Inventors

• Campbell Levi A
• Ciraulo Christopher R
• David Milnes P
• Demetriou Dustin W
• Loparco John J
• Mullady Robert K
• Porter Donald W
• Schmidt Roger R
• Snider Richard P
• Torok John G

Classifications

• H05K7/20736 Primary

  within cabinets for removing heat from server blades · CPC title

• F24F7/04

  with ducting systems {, e.g. by double walls; with natural circulation (F24F7/02 takes precedence)} · CPC title

• H05K7/20172 Primary

  Fan mounting or fan specifications · CPC title

• H05K7/20727

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