U.S. patent application number 15/697242 was filed with the patent office on 2019-03-07 for cable management enclosure.
The applicant listed for this patent is Facebook, Inc.. Invention is credited to Jon Brian Ehlen.
Application Number | 20190072735 15/697242 |
Document ID | / |
Family ID | 65495885 |
Filed Date | 2019-03-07 |
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United States Patent
Application |
20190072735 |
Kind Code |
A1 |
Ehlen; Jon Brian |
March 7, 2019 |
CABLE MANAGEMENT ENCLOSURE
Abstract
Technology is provided for a cable management enclosure. The
cable management enclosure includes an elongate bottom panel having
a first end portion and a second end portion. A front panel is
coupled to the first end portion and has at least one elongate
aperture positioned to receive a cable. An end panel is coupled to
the second end portion and a cover is coupled to at least one of
the bottom panel, the front panel and the end panel. The cover
includes a top panel and a pair of side panels. An elongate grommet
is mounted in each of the elongate apertures.
Inventors: |
Ehlen; Jon Brian; (Newark,
CA) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Facebook, Inc. |
Menlo Park |
|
CA |
|
|
Family ID: |
65495885 |
Appl. No.: |
15/697242 |
Filed: |
September 6, 2017 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H02B 1/46 20130101; G02B
6/4447 20130101; G11B 33/142 20130101; G11B 33/127 20130101 |
International
Class: |
G02B 6/44 20060101
G02B006/44; H02B 1/46 20060101 H02B001/46 |
Claims
1. A cable management enclosure, comprising: an elongate bottom
panel having a first end portion and a second end portion and being
configured for engagement with a server sled; a front panel coupled
to the first end portion and having at least one elongate aperture
positioned to receive a cable therethrough; an end panel coupled to
the second end portion; a cover coupled to at least one of the
bottom panel, the front panel, or the end panel, the cover
including a top panel and a pair of side panels; and at least one
grommet mounted in the at least one elongate aperture, wherein the
at least one grommet has an elongate slit extending through the at
least one grommet and the at least one grommet has a plurality of
openings along the elongate slit that are wider than the elongate
slit.
2. The cable management enclosure of claim 1, wherein the at least
one elongate aperture comprises a vertically oriented obround
aperture.
3. The cable management enclosure of claim 1, wherein the at least
one grommet includes an exterior flange and an interior flange
surrounding the elongate slit.
4. The cable management enclosure of claim 1, further comprising at
least one enclosure partition positioned in the enclosure to define
at least two cable containment regions.
5. The cable management enclosure of claim 4, wherein the at least
one enclosure partition is vertically oriented in the
enclosure.
6. The cable management enclosure of claim 1, further comprising
one or more latches positioned to engage a server platform
chassis.
7. A cable management enclosure, comprising: an elongate bottom
panel having a first end portion and a second end portion; a front
panel coupled to the first end portion and having at least three
elongate apertures positioned to receive a cable therethrough; an
end panel coupled to the second end portion; a cover coupled to at
least one of the bottom panel, the front panel, or the end panel;
at least three grommets each mounted in a corresponding one of the
at least three elongate apertures, wherein each grommet has an
elongate slit extending through the grommet and each grommet has a
plurality of openings along the respective elongate slit that are
wider than the respective elongate slit; and at least two enclosure
partitions positioned in the enclosure to define at least three
cable containment regions, each cable containment region
corresponding to one of the at least three grommets.
8. The cable management enclosure of claim 7, wherein one of the at
least three elongate apertures comprises a vertically oriented
obround aperture.
9. The cable management enclosure of claim 8, wherein the at least
two enclosure partitions are vertically oriented in the
enclosure.
10. The cable management enclosure of claim 7, wherein at least one
of the at least three grommets includes an exterior flange and an
interior flange surrounding the elongate slit.
11. The cable management enclosure of claim 7, wherein the cover
includes a top panel and a pair of side panels.
12. The cable management enclosure of claim 7, further comprising
one or more latches positioned to engage a server platform
chassis.
13. A server platform, comprising: a cubby chassis including one or
more chassis partitions defining a plurality of sled positions; one
or more cable management enclosures positioned in a corresponding
one of the plurality of sled positions, each comprising: an
elongate bottom panel having a first end portion and a second end
portion; a front panel coupled to the first end portion and having
at least three elongate apertures positioned to receive a cable
therethrough; an end panel coupled to the second end portion; a
cover coupled to at least one of the bottom panel, the front panel,
or the end panel; at least three grommets each mounted in a
corresponding one of the at least three elongate apertures, wherein
each grommet has an elongate slit extending through the grommet and
each grommet has a plurality of openings along the respective
elongate slit that are wider than the respective elongate slit; and
at least two enclosure partitions positioned in the enclosure to
define at least three cable containment regions, each cable
containment region corresponding to one of the at least three
grommets.
14. The server platform of claim 13, further comprising one or more
server sleds movably positioned in a corresponding one of the
plurality of sled positions and movable relative to the cubby
chassis between stowed and extended positions.
15. The server platform of claim 14, further comprising at least
one cable connected to the one or more server sleds and extending
into one of the at least three cable containment regions.
16. The server platform of claim 13, further comprising one or more
latches positioned on the cable management enclosure to engage the
cubby chassis.
17. The server platform of claim 13, wherein the at least two
enclosure partitions are vertically oriented in the enclosure.
18. The cable management enclosure of claim 3, wherein the interior
flange comprises flexible material.
19. The cable management enclosure of claim 1, wherein the
plurality of openings of the at least one grommet comprises an oval
opening or a round opening.
20. The cable management enclosure of claim 1, wherein the at least
one grommet includes a first opening at a first end of the elongate
slit and a second opening at a second end of the elongate slit
opposite the first end of the elongate slit, and the first opening
and the second opening have a similar shape.
Description
TECHNICAL FIELD
[0001] This patent application generally relates to data storage
server configurations, and more specifically, to server device
platform configurations.
BACKGROUND
[0002] Capital and operating expenses for data centers have become
an increasing part of IT organizations' budgets over time. Data
centers are complex facilities including many rows of data storage
server racks. Each server rack has a footprint which consumes real
estate, power, and cooling resources. With all the power, cooling,
and cabling infrastructure, data centers are expensive facilities
to operate. Thus, each server rack's footprint should be used
efficiently in order to reduce costs and maximize profit. The more
storage devices housed within a server rack, the more efficient the
use of the footprint. However, server racks must also be designed
to provide adequate cooling, prevent interference (e.g., EMI/RFI)
among devices, and facilitate safe and efficient deployment and
maintenance of the systems.
[0003] While existing rack designs are functional, there is still
room for improvements in many aspects of server rack design. For
example, many servers and other computer systems contain components
mounted on sliding trays or device sleds, which allow technicians
to easily access and replace the components without having to open
the chassis of the computer system. In some cases, a pair of
elongate conductors are provided to continuously power the device
sleds as they are extended from the system chassis. Thus, measures
for preventing inadvertent exposure to the conductors should be
considered. Furthermore, in order to facilitate extending the
device sleds from the chassis, communication cables, which are
often connected at the front of each sled, must be at least as long
as the desired travel length of the sled. This causes the cables to
occupy a considerable amount of space when the sled is fully inside
the chassis. This excess cable length (e.g., service loop) should
be managed to prevent stress on associated connectors and to
prevent interference with air-flow in the chassis.
BRIEF DESCRIPTION OF THE DRAWINGS
[0004] Embodiments of the cable management enclosure, device sled
interference shield, fan cartridge, device sled extension limit
latch, and latch handle with plunger lock disclosed herein may be
better understood by referring to the following Detailed
Description in conjunction with the accompanying drawings, in which
like reference numerals indicate identical or functionally similar
elements:
[0005] FIG. 1 is an isometric view of a device platform with a
cubby chassis according to a representative embodiment.
[0006] FIG. 2 is an isometric view of the device platform with the
top removed from the cubby chassis.
[0007] FIG. 3 is an isometric view of the device platform with two
device sleds removed.
[0008] FIG. 4 is an isometric view of a device sled as viewed from
below.
[0009] FIG. 5 is an isometric view of the device sled as viewed
from above.
[0010] FIG. 6A is a partial isometric view of a latch handle with
plunger lock according to a representative embodiment.
[0011] FIG. 6B is a partial isometric view of the latch handle with
plunger lock in an unlatched position.
[0012] FIG. 7 is a partial isometric view illustrating the latch
handle in a latched position and engaging the cubby chassis.
[0013] FIG. 8 is an isometric view of the latch handle with plunger
lock as viewed from the left.
[0014] FIG. 9A is an isometric view of the plunger lock according
to a representative embodiment.
[0015] FIG. 9B is an exploded isometric view of the plunger
lock.
[0016] FIG. 10 is an enlarged partial view of a device sled
extension limit latch according to a representative embodiment.
[0017] FIG. 11A is a partial isometric view of the limit latch in a
latched position.
[0018] FIG. 11B is a partial isometric view of the limit latch in
an unlatched position.
[0019] FIG. 12 is an isometric view of the latch arm.
[0020] FIG. 13A is an isometric view of a fan cartridge, according
to a representative embodiment, inserted in a sled chassis.
[0021] FIG. 13B is an isometric view of the fan cartridge removed
from the sled chassis.
[0022] FIG. 14 is an enlarged partial isometric view of a fan
cartridge latch.
[0023] FIG. 15 is a partial isometric view of a fan cartridge
channel.
[0024] FIG. 16 is an isometric view of a cable management enclosure
according to a representative embodiment.
[0025] FIG. 17 is an exploded isometric view of the cable
management enclosure.
[0026] FIG. 18 is an isometric view of the cable management
enclosure with the top portion removed.
[0027] FIG. 19A is a front isometric view of a cable management
grommet according to a representative embodiment.
[0028] FIG. 19B is a rear isometric view of the cable management
grommet.
[0029] FIG. 20 is a partial isometric view of a device sled
illustrating an interference shield according to a representative
embodiment.
[0030] FIG. 21 is a partial isometric view of the interference
shield removed from the device sled.
[0031] FIG. 22 is a partial isometric view similar to FIG. 21 as
viewed from the opposite side.
[0032] The headings provided herein are for convenience only and do
not necessarily affect the scope or meaning of the claimed
embodiments. Further, the drawings have not necessarily been drawn
to scale. For example, the dimensions of some of the elements in
the figures may be expanded or reduced to help improve the
understanding of the embodiments. Moreover, while the disclosed
technology is amenable to various modifications and alternative
forms, specific embodiments have been shown by way of example in
the drawings and are described in detail below. The intention,
however, is not to unnecessarily limit the embodiments described.
On the contrary, the embodiments are intended to cover all suitable
modifications, equivalents, and alternatives falling within the
scope of the embodiments as defined by the appended claims.
DETAILED DESCRIPTION
Overview
[0033] A device platform with continuously powered device sleds is
disclosed. In some embodiments, the device platform is a server
platform and the device sleds are server sleds. In an embodiment, a
server platform can include a cubby chassis including one or more
partitions defining a plurality of sled positions. A server sled
can be positioned in each sled position and continuously powered by
a pair of elongate conductors even as they are extended from the
cubby chassis. This arrangement can facilitate "hot swap"
maintenance procedures.
[0034] Disclosed herein is a latch handle with a plunger lock to
securely latch and lock the server sled in its corresponding sled
position. In an embodiment, the server sled includes a sled chassis
which has a bottom wall and a sidewall extending between a front
sled portion and a rear sled portion and a latch handle. The latch
handle includes a proximal end portion pivotably coupled to the
sled chassis proximate the front sled portion. A latch pawl extends
from the proximal end portion of the handle. The latch handle is
pivotable between a latched position where the latch pawl is
positioned to engage a latch feature of the cubby chassis, thereby
preventing movement of the sled chassis with respect to the cubby
chassis, and an unlatched position where the latch pawl is
disengaged from the latch feature of the cubby chassis. A handle
lock is disposed on a distal end portion of the latch handle to
selectively lock the latch handle in the latched position.
[0035] In order to prevent the server sleds from being
inadvertently removed from the cubby chassis, thereby exposing the
conductors, the device sleds can each be provided with an extension
limit latch as disclosed herein. In a representative embodiment,
the extension limit latch can include a latch arm having a proximal
end portion pivotably coupled to the sled chassis proximate the
rear sled portion. A latch barb extends from a mid-portion of the
latch arm, and a distal end portion of the arm includes an
actuation tab. The latch arm is pivotable between a latched
position where the latch barb is positioned to engage a latch
feature of a cubby chassis, thereby preventing removal of the sled
chassis from the cubby chassis, and an unlatched position where the
latch barb is disengaged from the latch feature of the cubby
chassis. In some embodiments, a latch cover can be positioned on
the sled chassis to cover the actuation tab, thereby preventing a
user from moving the latch arm to the unlatched position without
using a tool.
[0036] In some embodiments, the server sleds can include a
removable fan cartridge to facilitate efficient fan replacement. In
a representative embodiment, a pair of spaced apart channels can
each be coupled to the bottom wall of the device chassis. Each
channel can include an associated latch aperture. The fan cartridge
is removably inserted between the pair of spaced apart channels. In
some embodiments, the fan cartridge can include a cartridge frame
and one or more fans coupled to the cartridge frame. One or more
latches are positioned on the cartridge frame to engage a
corresponding latch aperture when the fan cartridge is inserted
between the pair of spaced apart channels. Thus, the fan cartridge
can be easily removed from the device chassis without tools. In
some embodiments, the fan cartridge can include a cartridge
connector that mates with a corresponding chassis connector when
the fan cartridge is inserted between the pair of spaced apart
channels.
[0037] In some embodiments, the server platform can include a cable
management enclosure to manage communication cable service loops.
In a representative embodiment, the cable management enclosure can
include an elongate bottom panel having a first end portion and a
second end portion. A front panel is coupled to the first end
portion and has at least one elongate aperture positioned to
receive the service loop of one of the communication cables. An
elongate grommet is mounted in each of the elongate apertures to
help retain the service loop in the enclosure. An end panel is
coupled to the second end portion and a cover is coupled to at
least one of the bottom panel, the front panel, and the end panel.
The cover can include a top panel and a pair of side panels.
[0038] In some embodiments, each device sled chassis can include a
removable interference shield to protect against electromagnetic
interference (EMI) and radio frequency interference (RFI). In a
representative embodiment, a shield support bracket is coupled to a
first sidewall of the sled chassis and an interference shield is
removably coupled to the shield support bracket and the device
chassis' second sidewall. The interference shield can include a
shield panel, first and second opposed side flanges extending from
the shield panel, and a latch coupled to the first side flange and
positioned to engage the shield support bracket. In some
embodiments, a handle is coupled to the shield panel and positioned
adjacent the latch such that the latch can be disengaged from the
shield support bracket by a user's thumb or other portion of the
user's hand when the handle is grasped. Accordingly, the shield can
be easily removed without tools to maintain sled components behind
the shield.
General Description
[0039] Various examples of the technologies introduced above will
now be described in further detail. The following description
provides specific details for a thorough understanding and enabling
description of these examples. One skilled in the relevant art will
understand, however, that the techniques discussed herein may be
practiced without many of these details. Likewise, one skilled in
the relevant art will also understand that the technology can
include many other features not described in detail herein.
Additionally, some well-known structures or functions may not be
shown or described in detail below so as to avoid unnecessarily
obscuring the relevant description.
[0040] The terminology used below is to be interpreted in its
broadest reasonable manner, even though it is being used in
conjunction with a detailed description of some specific examples
of the embodiments. Indeed, some terms may even be emphasized
below; however, any terminology intended to be interpreted in any
restricted manner will be overtly and specifically defined as such
in this section.
[0041] As shown in FIGS. 1 and 2, the device platform 100 includes
a cubby chassis 110 configured to mount into a component rack (not
shown) and house one or more device sleds 200 containing on or more
devices (e.g., server and/or memory modules). The illustrated cubby
chassis 110 can be a sheet metal chassis, and it can include four
sled positions 122 sized and configured to receive a device sled
200 or a cable management enclosure 600 in each position. As
explained more fully below, the cable management enclosure 600 is
configured to house excess cable length, such as a communication
cable 102, when a corresponding device sled 200 is in a stowed
position, as shown in FIG. 1, for example. The cubby chassis 110 of
other embodiments can have a greater or fewer number of sled
positions 122. The cubby chassis 110 includes a top panel 112 (FIG.
1) and a bottom panel 114 as shown in FIG. 3. With continued
reference to FIG. 3, the cubby chassis 110 includes spaced apart
sidewalls 116 and an end wall 118. Three partitions 120 are
positioned between the top and bottom panels (112, 114) to divide
the cubby chassis 110 into the four sled positions 122.
[0042] Each of the four sled positions 122 can include a pair of
elongate conductors 124 extending along the length of the sled
positions 122 in order to continuously provide power to a
corresponding device sled 200 as the sled is moved in and out of
the cubby chassis 110 for maintenance. In some embodiments, the
elongate conductors 124 are disposed on an elongate conductor
support, such as a conductor printed circuit board (PCB) 126.
[0043] As shown in FIG. 4, the illustrated device sled 200 includes
a sled chassis 202 having opposed first and second sidewalls 204
and 206 with a recessed bottom wall 208 extending therebetween. The
bottom wall 208 and the sidewalls 204 and 206 extend between a
front portion 230 and a rear portion 232. In some embodiments,
conductive elements 210 are mounted on a bottom-plane PCB 212 for
sliding contact with the pair of elongate conductors 124 (FIG. 3)
on the bottom panel 114 of the cubby chassis 110. In some
embodiments, the conductive elements 210 are spring biased toward
the pair of elongate conductors 124. A conductor guide 214 can be
mounted to the bottom-plane PCB 212 to surround the conductive
elements 210. In some embodiments, the conductor guide 214 includes
a pair of opposed grooves 216 adapted to slideably receive the
conductor PCB 126 (FIG. 3). The sled chassis 202 slides along the
bottom panel 114 between stowed (e.g., FIG. 3) and extended
positions (e.g., FIG. 10) with constant contact between the
conductor elements 210 and the elongate conductors 124 to provide
continuous power as the device sled 200 moves between the stowed
and extended positions. Additional examples of continuously powered
device sleds are described in U.S. Pat. No. 9,693,477 and
co-pending U.S. patent application Ser. No. 15/619,407, filed Jun.
9, 2017, the disclosures of which are incorporated herein by
reference in their entireties.
[0044] As shown in FIG. 5, the device sled chassis 202 can be
configured to contain several devices, such as server modules 220.
Although the embodiments are, in some instances, described herein
with respect to servers, other computer devices, such as memory and
graphics processing units, etc., can be used or contained in the
device sleds 200. In some embodiments, the device sleds 200 can be
latched in the stowed position with a latch handle mechanism
300.
[0045] As shown in FIGS. 6A and 6B, the latch handle mechanism 300
can include a latch handle 302 and a handle lock 304 to selectively
lock the latch handle in the latched position (e.g., FIG. 6A). A
strike bracket 320 is mounted to the sidewall 204 and positioned
such that the handle lock 304 releasably engages a bracket aperture
322 formed in the strike bracket 320 when the latch handle 302 is
in the latched position.
[0046] The latch handle 302 includes a proximal end portion 306
movably coupled to the sidewall 204 proximate the front sled
portion 230. In some embodiments, the proximal end portion 306 is
coupled to the sidewall 204 with a pivot pin 305, for example. The
latch handle 302 is pivotable or otherwise movable between the
latched position (FIG. 6A) and an unlatched position (FIG. 6B). In
some embodiments, the proximal end portion 306 can include a limit
slot 312 positioned on a stop pin 314 secured to the sidewall 204,
whereby rotational movement of the latch handle 302 toward the
latched and unlatched positions is limited. In some embodiments,
the proximal end portion 306 can include a detent configuration,
such as a detent spring 316 positioned for engaging detent holes
318, to help hold the latch handle 302 in different rotational
positions.
[0047] A latch pawl 308 and an opposing ejector pawl 310 extend
from the proximal end portion 306. When the latch handle 302 is in
the latched position, the latch pawl 308 is positioned to
releasably engage a latch feature, such as a latch aperture 130,
shown in FIG. 7. In some embodiments, the latch aperture 130 is
formed in the bottom panel 114 of the cubby chassis 110. The latch
pawl 308 prevents movement of the device sled 200 with respect to
the cubby chassis 110 when the latch handle 302 is in the latched
position. The ejector pawl 310 works against a front edge 115 of
the bottom panel 114 as the latch handle 302 is moved toward the
unlatched position, thereby levering the device sled 200 from its
sled position 122 as the latch pawl 308 disengages the latch
aperture 130. Once the latch pawl 308 is disengaged from the latch
aperture 130, the device sled 200 can be moved toward the extended
position for maintenance.
[0048] As shown in FIG. 8, the latch handle 302 extends from the
proximal end portion 306 to a distal end portion 324. In some
embodiments, the latch handle 302 includes an arcuate portion 326.
As best shown in FIG. 8, the detent spring 316 can comprise a leaf
spring with a centrally positioned protrusion 317 adapted to engage
the detent holes 318 (FIGS. 6A and 6B). In some embodiments, the
detent spring 316 can be mounted in a slot 321 with fasteners
323.
[0049] The handle lock 304 is disposed on the distal end portion
324 and includes a lock plunger 330 and a button 332 operative to
move the plunger 330 toward a retracted (i.e., unlocked) position
when the button is depressed by a user. When the latch handle 302
is in the latched position, the plunger 330 engages the bracket
aperture 322 (FIG. 6B), thereby locking the latch handle 302 in the
latched position. The distal end portion 324 can include
orthogonally oriented mounting flanges 325 and 327. The handle lock
304 is attached to the mounting flanges 325 and 327 with fasteners
329.
[0050] As shown in FIGS. 9A and 9B, the handle lock 304 includes a
housing 340 and a mating side cover 342. In some embodiments, a
resilient member, such as a compression spring 344, is positioned
between the housing 340 and the lock plunger 330 to urge the
plunger 330 toward an extended (i.e., locked) position. In some
embodiments, the plunger includes a shoulder 331 to capture the
spring 344 in a pocket (not shown) formed in the housing 340. The
button 332 includes a cam portion 350 configured to act against a
surface 351 to cause an associated cam aperture 348 to move away
from the surface 351 when the button 332 is depressed by a user. A
plunger pin 346 extends through both the cam aperture 348 and a
plunger cross-hole 333, thereby coupling the plunger 330 to the cam
portion 350. Accordingly, as the button 332 is depressed the
plunger 330 is moved toward the retracted (i.e., unlocked)
position.
[0051] As shown in FIG. 10, each device sled 200 can include an
extension limit latch 400 operative to engage a latching feature on
the cubby chassis 110 when the device sled 200 is moved to the
extended position in order to prevent the device sled 200 from
being inadvertently removed from the cubby chassis 110. Removing a
device sled 200 from the cubby chassis 110 disconnects the device
sled 200 from the corresponding elongate conductors 124 (FIG. 3)
and leaves the conductors exposed where they could be inadvertently
contacted and damaged. In some embodiments, the latching feature
can comprise a barb aperture 132 formed in the top panel 112 of the
cubby chassis 110 which is releasably engaged by a latch member,
such as latch barb 402. The latch barb 402 can have any suitable
size or shape configured to extend at least partially into the barb
aperture for engagement with the top panel and/or to block the
device sled 200 from moving relative to the cubby chassis when the
latching feature is in the latched position.
[0052] As shown in FIGS. 11A and 11B, the extension limit latch 400
can include a latch arm 404 coupled to the sidewall 204 proximate
the rear sled portion 232 with a pivot pin 406. The latch arm 404
is pivotable between a latched position (FIG. 11A) and an unlatched
position (FIG. 11B). In the latched position, the latch barb 402 is
positioned to engage the barb aperture 132 (FIG. 10), thereby
preventing removal of the device sled 200 from the cubby chassis
110, and in the unlatched position the latch barb 202 is disengaged
from the barb aperture 132, thereby allowing the device sled 200 to
be removed from the cubby chassis 110 (FIG. 10). A resilient
member, such as a torsion spring 408, is positioned between the
latch arm 404 and the sidewall 204 to urge the latch arm 404 toward
the latched position. In some embodiments, a cover 410 is
positioned over the latch arm 404, thereby preventing a user from
moving the latch arm to the unlatched position without the use of a
tool, such as a stylus or screw driver, for example.
[0053] As shown in FIG. 12, the latch arm 404 includes a proximal
end portion 412 having a pivot aperture 416 for pivotably coupling
the latch arm 404 to the sled chassis. The latch barb 402 extends
from a mid-portion 415 of the latch arm 404. The distal end portion
414 of the latch arm 404 includes an actuation tab 418 having a
notch 420. The notch 420 provides an opening between the actuation
tab 418 and the cover 410 (FIG. 11A/11B). The notch 420 is sized to
provide an opening just large enough to receive a tool, but not a
user's finger. The mid-portion of the latch arm 404 can also
include a spring notch 422 to hold an end of the torsion spring 408
(FIG. 11A/11B) in position.
[0054] As shown in FIGS. 13A and 13B, each device sled 200 can
include a fan cartridge 500 removably inserted between a pair of
channels 502. Each channel 502 is coupled to a bottom wall 208 of
the device sled chassis 202 (FIG. 4) in spaced apart relation to
each other. The fan cartridge 500 can include a cartridge frame 504
and two fans 506 coupled to the cartridge frame 504. In some
embodiments, the fan cartridge 500 includes a cartridge connector
508 positioned proximate a first end portion 505 of the cartridge
frame 504 to mate with a corresponding chassis connector 510 when
the fan cartridge 500 is inserted between the channels 502. In some
embodiments, the cartridge frame 504 includes a pair of latches 512
positioned proximate a second end portion 507 of the cartridge
frame 504 to engage a corresponding latch aperture 514 when the fan
cartridge 500 is inserted between the pair of spaced apart channels
502.
[0055] As shown in FIG. 14, each of the latches 512 can be
positioned in a corresponding latch pocket 516 and retained therein
with fasteners 518. Each latch 512 can include a latch barb 520
connected to a latch tab 522 such that depressing the latch tab 522
moves the latch barb 520 away from and out of the associated latch
aperture 514 allowing the fan cartridge 500 to be removed from the
channels 502.
[0056] As shown in FIG. 15, each channel 502 can include a central
panel 524 having opposed longitudinal sides and a pair of rails 526
and 528 each extending at least partially along a corresponding one
of the longitudinal sides of the central panel 524. In some
embodiments, the central panel 524 can include a recessed region
530 positioned to receive a corresponding latch pocket 516 when the
fan cartridge 500 is installed between the channels 502. In some
embodiments, the fan cartridge 500 and the pair of spaced apart
channels 502 can comprise a fan assembly mountable to a device sled
chassis.
[0057] As shown in FIG. 16, the cable management enclosure 600 is
an elongate enclosure configured to contain the service loop of one
or more cables, such as the communication cable 102 (FIG. 1), when
a corresponding device sled 200 is in the stowed position. When the
device sled 200 is moved out of the cubby chassis 110, the cable
102 can be withdrawn from the enclosure 600 to provide enough
length to move the device sled 200 to the extended position (FIG.
10). The enclosure 600 can include grommets 602 mounted in a front
panel 604 to help retain the cables within the enclosure when the
device sled 200 is stowed. In some embodiments, the cable
management enclosure 600 can have the same general dimensions as
the device sleds 200 in order to fit into one of the sled positions
122 (FIG. 1).
[0058] As shown in FIG. 17, the cable management enclosure 600
includes an elongate bottom panel 608 having a first end portion
610 and a second end portion 612. The front panel 604 is coupled to
the first end portion 610 and an end panel 614 is coupled to the
second end portion 612. The front panel 604 of the illustrated
embodiment includes obround apertures 606 sized to receive
corresponding grommets 602. The apertures 606 in the front panel
604 and the corresponding grommets 602 in other embodiments can
have other shapes and sizes while still allowing movement of the
cables into and out of the cable management enclosure 600.
[0059] A cover 616 is coupled to at least one of the bottom panel
608, the front panel 604, and the end panel 614. In some
embodiments, the cover 616 is coupled to all of the panels
including the bottom panel 608, the front panel 604, and the end
panel 614. In some embodiments, the cover 616 includes a top panel
618 and a pair of side panels 620. Two enclosure partitions 622 are
positioned in the enclosure to define at least three cable
containment regions 623, each corresponding to one of the three
grommets 602. Although three vertically oriented cable containment
regions 623 are described herein, other arrangements are possible.
For example, in other embodiments the enclosure can have a greater
or fewer number of cable containment regions. In other embodiments,
some or all of the cable containment regions can be oriented
horizontally.
[0060] In some embodiments, the cable management enclosure 600 can
include a latch, such as a top latch 624. The top latch 624 can be
mounted to the top panel 618 with a barb 626 extending through an
aperture 628 to engage a corresponding barb aperture 132 (FIG. 10).
In some embodiments, the top latch 624 can comprise a leaf spring
attached to the top panel 618 at one end, whereby the barb 626 is
urged toward a latched position. In some embodiments, the front
panel 604 includes a release aperture 632 through which a tool can
be inserted to push on a ramped surface 630, thereby moving the
barb 626 from the latched position.
[0061] As shown in FIG. 18, the cable management enclosure 600 can
also include a bottom latch 625 mounted to the bottom panel 608.
The bottom latch 625 can be constructed in a similar manner as that
described above with respect to the top latch 624. For example, the
bottom latch 625 can include a barb 627 positioned to releasably
engage a corresponding latch aperture 130 (FIG. 7). In some
embodiments, the front panel 604 includes a release aperture 633
through which a tool can be inserted to unlatch the barb 627. The
bottom panel 608 can include a recessed region 652 to provide
clearance for a conductor PCB 126, whereby the cable management
enclosure 600 can be inserted into any of the sled positions 122
(FIG. 3).
[0062] As shown in FIGS. 19A and 19B, the grommets 602 can include
an exterior flange 640 confronting an exterior surface of the front
panel 604 (FIG. 18). The grommets 602 also include an elongate slit
642 having a surrounding flexible interior flange 643. The interior
flange 643 is flexible to allow a loop of cable to be pushed
through the slit 642. In some embodiments, the interior flange 643
includes openings sized and configured to receive different cable
types. For example, in the depicted embodiment, the interior flange
643 includes oval openings 644 to receive flat cables and smaller
round openings 646 to receive round cables. As best shown in FIG.
19B, the grommets 602 each include a surrounding groove 650
positioned to engage a surrounding edge margin of the obround
apertures 606 (FIG. 18).
[0063] As shown in FIG. 20, each device sled 200 can include an
interference shield 700 removably coupled to a shield support
bracket 702 and the second sidewall 206 of the sled chassis 202.
The removable interference shield 700 provides EMI and RFI
protection for the device sled 200 and also provides access to
components within the front end portion 230 of the device sled 200
by being easily removable. In some embodiments, the interference
shield 700 and the shield support bracket 702 can comprise an
electrically conductive material, such as metal, for example.
[0064] With further reference to FIGS. 21 and 22, in a
representative embodiment, the shield support bracket 702 is
coupled to the first sidewall 204 and includes three bracket
mounting features, such as pins 720. The bracket mounting pins 720
can be pressed into, or otherwise secured to, the bracket side
flange 724, as shown. The bracket side flange 724 can also include
a shield latch aperture 722 positioned to engage a shield latch 730
disposed on a shield panel 704. The interference shield panel 704
and the shield support bracket 702 can include a plurality of air
flow apertures 706 and 707, respectively. First and second opposed
side flanges, 710 and 712, respectively, extend from the shield
panel 704. The first side flange 710 can include one or more first
slots 740 (FIG. 22) positioned to receive a corresponding one of
the bracket mounting pins 720 (FIG. 21). The second side flange 712
can include one or more second slots 742 (FIG. 21) each positioned
to receive a corresponding sidewall mounting pin 744 (FIG. 22). The
first and second slots 740 and 742 can be configured to clip onto
their corresponding mounting pins 720 and 744 in order to help
retain the shield 700 in the sled chassis 202.
[0065] As best shown in FIG. 22, the shield latch 730 can be
coupled to the first side flange 710 and can include a latch barb
731 positioned to releasably engage the shield support bracket
shield latch aperture 722 (FIG. 21). In some embodiments, a handle
750 can be coupled to the shield panel 704 and positioned adjacent
the latch 730 such that the latch 730 can be disengaged from the
shield support bracket 702 by a user's thumb or other portion of
the user's hand when the handle 750 is grasped. The handle 750
allows a user to then pull the shield 700 from the chassis 202. In
some embodiments, the shield panel 704 includes one or more
connector apertures 760 formed therethrough and positioned to
receive corresponding connectors when the interference shield 700
is coupled to the shield support bracket 702 and the second
sidewall 206.
[0066] In some embodiments, the interference shield 700 includes
opposed upper and lower flanges 711 and 713, respectively. In some
embodiments, one or more spring contacts 762 can be disposed on
each of the first and second side flanges (710, 712) and the upper
and lower flanges (711, 713). The spring contacts 762 help ensure
that continuity is established between the sled chassis 202, the
cubby chassis top panel 112 (FIG. 1), and the interference shield
700.
REMARKS
[0067] The above description and drawings are illustrative and are
not to be construed as limiting. Numerous specific details are
described to provide a thorough understanding of the disclosure.
However, in some instances, well-known details are not described in
order to avoid obscuring the description. Further, various
modifications may be made without deviating from the scope of the
embodiments. Accordingly, the embodiments are not limited except as
by the appended claims.
[0068] Reference in this specification to "one embodiment" or "an
embodiment" means that a particular feature, structure, or
characteristic described in connection with the embodiment is
included in at least one embodiment of the disclosure. The
appearances of the phrase "in one embodiment" in various places in
the specification are not necessarily all referring to the same
embodiment, nor are separate or alternative embodiments mutually
exclusive of other embodiments. Moreover, various features are
described which may be exhibited by some embodiments and not by
others. Similarly, various requirements are described which may be
requirements for some embodiments but not for other
embodiments.
[0069] The terms used in this specification generally have their
ordinary meanings in the art, within the context of the disclosure,
and in the specific context where each term is used. It will be
appreciated that the same thing can be said in more than one way.
Consequently, alternative language and synonyms may be used for any
one or more of the terms discussed herein, and any special
significance is not to be placed upon whether or not a term is
elaborated or discussed herein. Synonyms for some terms are
provided. A recital of one or more synonyms does not exclude the
use of other synonyms. The use of examples anywhere in this
specification, including examples of any term discussed herein, is
illustrative only and is not intended to further limit the scope
and meaning of the disclosure or of any exemplified term. Likewise,
the disclosure is not limited to various embodiments given in this
specification. Unless otherwise defined, all technical and
scientific terms used herein have the same meaning as commonly
understood by one of ordinary skill in the art to which this
disclosure pertains. In the case of conflict, the present document,
including definitions, will control.
* * * * *