U.S. patent application number 13/479302 was filed with the patent office on 2013-08-15 for air blocking apparatus.
This patent application is currently assigned to HON HAI PRECISION INDUSTRY CO., LTD.. The applicant listed for this patent is YAO-TING CHANG. Invention is credited to YAO-TING CHANG.
Application Number | 20130210338 13/479302 |
Document ID | / |
Family ID | 48945963 |
Filed Date | 2013-08-15 |
United States Patent
Application |
20130210338 |
Kind Code |
A1 |
CHANG; YAO-TING |
August 15, 2013 |
AIR BLOCKING APPARATUS
Abstract
An air blocking apparatus is mounted to a server to replace a
heat sink. The heat sink includes a base plate, and a fin assembly
formed on the base plate. The fin assembly comprises a number of
parallel fins. An air passage is defined in every two neighboring
fins. The air blocking apparatus includes a bottom plate and a
blocking plate perpendicularly extending up from the bottom plate.
The blocking plate is rectangular, with a width and a height of the
blocking plate respectively equal to a width and a height of the
fin assembly of the heat sink. The blocking plate defines a vent.
An area of the vent is equal to a sum of cross sectional areas of
all of the air passages taken along a direction perpendicular to
the board plate.
Inventors: |
CHANG; YAO-TING; (Tu-Cheng,
TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
CHANG; YAO-TING |
Tu-Cheng |
|
TW |
|
|
Assignee: |
HON HAI PRECISION INDUSTRY CO.,
LTD.
Tu-Cheng
TW
|
Family ID: |
48945963 |
Appl. No.: |
13/479302 |
Filed: |
May 24, 2012 |
Current U.S.
Class: |
454/284 |
Current CPC
Class: |
G06F 1/183 20130101;
G06F 1/20 20130101; H05K 7/20563 20130101 |
Class at
Publication: |
454/284 |
International
Class: |
F24F 13/08 20060101
F24F013/08 |
Foreign Application Data
Date |
Code |
Application Number |
Feb 10, 2012 |
TW |
101104272 |
Claims
1. An air blocking apparatus for being installed in a chassis to
replace a heat sink removed from the chassis, the heat sink
comprising a base board operable to be fixed to the chassis and a
fin assembly formed on a top of the base board, the fin assembly
comprising a plurality of parallel fins, with a plurality of air
passages respectively defined between neighboring fins, the air
blocking apparatus comprising: a bottom plate to be fixed to the
chassis; and a blocking plate extending up from the bottom plate,
wherein the blocking plate is rectangular, with a width and a
height of the blocking plate respectively equal to a width and a
height of the fin assembly of the heat sink, the blocking plate
defines a vent, an area of the vent is equal to a sum of cross
sectional areas of all of the air passages along a direction
perpendicular to the board plate.
2. The air blocking apparatus of claim 1, wherein the area of the
vent is equal to (W.times.h).times.(N-1), where W stands for a
width of each of the fins, h stands for a distance between
neighboring fins, and N stands for the quantity of the fins.
3. The air blocking apparatus of claim 1, wherein a plurality of
fixing posts extends downwards from the bottom plate to engage with
the chassis.
Description
BACKGROUND
[0001] 1. Technical Field
[0002] The present disclosure relates to an air blocking apparatus
of a server.
[0003] 2. Description of Related Art
[0004] A server may have many processors, and heat sinks mounted on
the processors for heat dissipation. For various reasons, some of
the processors in a server may be removed and not replaced, leaving
empty zones in the server. Heat-dissipating airflows tend to flow
through the empty zones with low airflow resistance, rather than
flow through the heat generating components in the server.
Therefore, the empty zones in the server will possibly decrease
heat dissipation efficiency in the server.
BRIEF DESCRIPTION OF THE DRAWINGS
[0005] Many aspects of the present embodiments can be better
understood with reference to the following drawings. The components
in the drawings are not necessarily drawn to scale, the emphasis
instead being placed upon clearly illustrating the principles of
the present embodiments. Moreover, in the drawings, all the views
are schematic, and like reference numerals designate corresponding
parts throughout the several views.
[0006] FIG. 1 is an isometric, exploded view of an exemplary
embodiment of an air blocking apparatus, a server chassis, and a
heat sink.
[0007] FIG. 2 is a sectional view of the heat sink of FIG. 1, taken
along the line of II-II.
[0008] FIG. 3 is side plan view of the air blocking apparatus of
FIG. 1.
DETAILED DESCRIPTION
[0009] The disclosure, including the accompanying drawings, is
illustrated by way of examples and not by way of limitation. It
should be noted that references to "an" or "one" embodiment in this
disclosure are not necessarily to the same embodiment, and such
references mean at least one.
[0010] Referring to FIGS. 1 and 2, an exemplary embodiment of an
air blocking apparatus can be installed in a server chassis 800,
where a heat sink 200 is installed. The chassis 800 defines a
plurality of locating holes 801. The heat sink 200 includes a base
board 201, and a fin assembly 202 formed on a top side of the base
board 201. The base board 201 defines a plurality of mounting holes
2011 to align with the corresponding locating holes 801, thereby
allowing a plurality of fasteners, such as rivets or screws, to
extend through the mounting holes 2011 and the corresponding
locating holes 801 to fix the heat sink 200 to the chassis 800. The
fin assembly 202 includes a plurality of fins 203 all parallel to
the base board 201, and two heat pipes 204 extending through the
fins 203. Air can flow through air passages 207 defined between
neighboring fins 203 for heat dissipation. A sum of the cross
sectional areas of all of the air passages 207 taken along a
direction perpendicular to the board plate 201 labeled II-II is
equal to (W.times.h).times.(N-1), wherein W stands for the width of
each of the fins 202, h stands for the distance between neighboring
fins 203, and N stands for the quantity of the fins 202.
[0011] Referring to FIGS. 1 and 3, the air blocking apparatus
includes a bottom plate 10, a blocking plate 20 perpendicularly
extending up from the bottom plate 10, and two ribs 30 connected
between the bottom plate 10 and the blocking plate 20 to prevent
the blocking plate 20 from being deformed. A plurality of fixing
posts 11 extends downwards from the bottom plate 10. When the heat
sink 200 is removed from the chassis 800, the air blocking
apparatus can be fixed in the chassis 100, with the fixing posts 11
engaging in the corresponding locating holes 801 of the chassis
800. The blocking plate 20 is rectangular, with a width and a
height respectively equal to the width and the height of the fin
assembly 202 of the heat sink 20. The blocking plate 20 defines a
vent 21. An area of the vent 21 is equal to the sum of the cross
sectional area of the air passages 207, to make resistance to
airflow provided by the blocking plate 20 the same as airflow
resistance provided by the fin assembly 202 of the heat sink 200.
Therefore, when the air blocking apparatus is mounted in the
chassis 800 to replace the heat sink 200, lower heat dissipation
efficiency caused by significant redistribution of airflow through
the chassis 800 can be avoided.
[0012] It is to be understood, however, that even though numerous
characteristics and advantages of the embodiment have been set
forth in the foregoing description, together with details of the
structure and function of the embodiment, the disclosure is
illustrative only, and changes may be made in detail, especially in
the matters of shape, size, and arrangement of parts within the
principles of the present disclosure to the full extent indicated
by the broad general meaning of the terms in which the appended
claims are expressed.
* * * * *