U.S. patent application number 13/236663 was filed with the patent office on 2013-02-07 for heat sink with protective outer buckling plate.
This patent application is currently assigned to FOXCONN TECHNOLOGY CO., LTD.. The applicant listed for this patent is WEI-HSIANG CHANG, LI-JUAN SUN, XIAO-MING ZHANG, YONG ZHANG. Invention is credited to WEI-HSIANG CHANG, LI-JUAN SUN, XIAO-MING ZHANG, YONG ZHANG.
Application Number | 20130032309 13/236663 |
Document ID | / |
Family ID | 47615734 |
Filed Date | 2013-02-07 |
United States Patent
Application |
20130032309 |
Kind Code |
A1 |
ZHANG; YONG ; et
al. |
February 7, 2013 |
HEAT SINK WITH PROTECTIVE OUTER BUCKLING PLATE
Abstract
An exemplary heat sink includes a fin group, and a buckling
plate. The fin group includes a plurality of first fins, and a
second fin coupled to the first fin located at the outmost side.
The second fin includes a first body and a first flange bending
from a side of the first body. The first flange defines a first
buckling hole therein and forms a tab in the vicinity of the first
buckling hole. The buckling plate includes a second body and a
second flange bending from a side of the second body. The second
flange of the buckling plate faces and abuts against the first
flange of the second fin. The tab of the second fin extends through
the buckling plate to buckle the second fin with the buckling plate
together.
Inventors: |
ZHANG; YONG; (KunShan City,
CN) ; SUN; LI-JUAN; (KunShan City, CN) ;
CHANG; WEI-HSIANG; (New Taipei, TW) ; ZHANG;
XIAO-MING; (KunShan City, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
ZHANG; YONG
SUN; LI-JUAN
CHANG; WEI-HSIANG
ZHANG; XIAO-MING |
KunShan City
KunShan City
New Taipei
KunShan City |
|
CN
CN
TW
CN |
|
|
Assignee: |
FOXCONN TECHNOLOGY CO.,
LTD.
Tu-Cheng
TW
FURUI PRECISE COMPONENT (KUNSHAN) CO., LTD.
KunShan City
CN
|
Family ID: |
47615734 |
Appl. No.: |
13/236663 |
Filed: |
September 20, 2011 |
Current U.S.
Class: |
165/76 |
Current CPC
Class: |
H01L 23/3672 20130101;
H01L 2924/0002 20130101; H05K 7/20418 20130101; H01L 2924/0002
20130101; H01L 2924/00 20130101 |
Class at
Publication: |
165/76 |
International
Class: |
F28F 7/00 20060101
F28F007/00 |
Foreign Application Data
Date |
Code |
Application Number |
Aug 1, 2011 |
CN |
201110217780.1 |
Claims
1. A heat sink comprising: a fin group, the fin group comprising: a
plurality of first fins connected together; and a second fin
coupled to the first fin located at the outmost side of the
plurality of first fins, the second fin comprising a first body and
a first flange bending from a side of the first body, the first
flange defining a first buckling hole therein and forming a tab in
the vicinity of the first buckling hole; and a buckling plate, the
buckling plate comprising: a second body; and a second flange
bending from a side of the second body, the second flange facing
and abutting against the first flange of the second fin, and the
tab of the second fin extending through the buckling plate to
buckle the second fin and the buckling plate together.
2. The heat sink of claim 1, wherein the second body of the
buckling plate defines a second buckling hole near the second
flange, the second buckling hole corresponding with the tab of the
second fin, the tab of the second fin being bent and extending
through the second buckling hole of the buckling plate to buckle
the second fin with the buckling plate together.
3. The heat sink of claim 1, wherein each of the first fins
comprises a body and a flange bending from a side of the body, the
flange of each first fin extending along a same direction and
abutting against the body of an adjacent first fin, the flange of
each first fin defining a buckling hole therein and forming a
buckling sheet in the vicinity of the buckling hole, the buckling
sheet of the first fin at the outmost side being received in the
first buckling hole of the second fin.
4. The heat sink of claim 3, wherein a protrusion protrudes
outwardly from an edge of the body of each first fin near the
buckling hole, the buckling sheet of one first fin being received
in the buckling hole of another first fin, the protrusion of the
another first fin being buckled in the buckling hole of the one
first fin.
5. The heat sink of claim 4, wherein the buckling sheet of each
first fin comprises a main body and an extending portion, the
buckling hole of each first fin comprising a main portion and an
extending portion, the main body of the buckling sheet of the one
first fin being received in the main portion of the buckling hole
of the another first fin, the extending portion of the buckling
sheet of the one first fin being received in the extending portion
of the buckling hole of the another first fin, the protrusion of
the another first fin being buckled in the extending portion of the
buckling hole of the one first fin.
6. The heat sink of claim 5, wherein the extending portion of the
buckling hole of the first fin has an extending distance equal to
an extending distance of the extending portion of the buckling
sheet plus the thickness of the protrusion.
7. The heat sink of claim 6, wherein a width of the main body of
each buckling sheet is larger than that of the extending portion of
each buckling sheet.
8. The heat sink of claim 5, wherein the main body of the buckling
sheet of each first fin is located near the extending portion of
the buckling hole of the first fin.
9. The heat sink of claim 1, wherein the buckling plate is placed
in an inner side of the second fin where the first flange is
located.
10. The heat sink of claim 1, wherein the second flange of the
buckling plate abuts against an inner side of the first flange of
the second fin.
11. The heat sink of claim 1, wherein the buckling plate is made of
metal.
12. A heat sink comprising: a first fin, the first fin comprising a
first body and a first flange bending from a side of the first
body, a buckling sheet extending outwards from an outer edge of the
first flange; a second fin coupled to the first fin, the second fin
comprising a second body abutting the outer edge of the first
flange of the first fin and a second flange bending from a side of
the second body along a direction away from the first fin, the
second flange of the second fin defining a buckling hole therein
receiving the bucking sheet of the first fin, and a tab extending
outwards from an outer edge of the second flange of the second fin;
and a buckling plate, the buckling plate comprising a third body
abutting the outer edge of the second flange of the second fin, and
a third flange bending from a side of the third body to abut the
second body of the second fin, the third body of the buckling plate
defining a hole with the tab of the second fin engaged in the
hole.
13. The heat sink of claim 12, wherein the hole of the third body
of the buckling plate is defined near the third flange, the tab of
the second fin being bent to be engaged in the hole of the buckling
plate to buckle the second fin with the buckling plate
together.
14. The heat sink of claim 12, wherein the first flange of the
first fin defines a buckling hole therein, a protrusion protruding
outwardly from an edge of the second body near the buckling hole of
the second fin, the protrusion of the second fin being buckled in
the buckling hole of the first fin.
15. A heat sink comprising: a fin and a buckling plate, the fin
comprising a first body and a first flange extending from an edge
of the first body towards the buckling plate, the buckling plate
comprising a second body and a second flange extending from an
outer edge of the second body towards the fin, the first body and
the second body being spaced from each other, the first flange of
the fin and the second flange of the buckling plate being located
between the first body and the second body, a tab extending from
the flange of one of the fin and the buckling plate, and the other
one of the fin and the buckling plate defining a hole in which the
tab is engaged.
16. The heat sink of claim 15, wherein the first flange of the fin
abuts the second body of the buckling plate, and the second flange
of the buckling plate abuts the first body of the fin.
17. The heat sink of claim 16, wherein the flanges of the fin and
the buckling plate overlap each other.
18. The heat sink of claim 17, wherein the tab extends from an
outer edge of the first flange of the fin, and the hole is defined
in the second body of the buckling plate, and the second flange of
the buckling plate contacts an inner side of the first flange of
the fin which faces the second body.
19. The heat sink of claim 15, wherein the first flange of the fin
defines a hole therein, and the heat sink further comprising
another fin engaged in the hole of the fin.
Description
BACKGROUND
[0001] 1. Technical Field
[0002] The disclosure relates to heat sinks, and particularly to a
heat sink which can protect a human operator from injury.
[0003] 2. Description of Related Art
[0004] Nowadays, numerous kinds of heat sinks are used to dissipate
heat generated by electronic devices. Conventionally, a heat sink
includes a plurality of fins. Each fin includes a body and a flange
bending from a side of the body. The flange defines a buckling hole
therein, and forms a buckling sheet in the vicinity of the buckling
hole. The flange of each fin extends along a same direction and
abuts against the body of an adjacent fin. The buckling sheet of
each fin extends through the buckling hole of an adjacent fin to
connect these two fins together. However, when all the fins are
stacked together, the flange and the buckling sheet of the fin
located at the outmost side of the stack are directly exposed, and
are liable to hurt a human operator such as a factory worker.
[0005] What is needed, therefore, is a heat sink which can overcome
the limitations described.
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] 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, like reference
numerals designate corresponding parts throughout the several
views.
[0007] FIG. 1 is an isometric, assembled view of a heat sink in
accordance with an exemplary embodiment of the disclosure.
[0008] FIG. 2 is similar to FIG. 1, but shows a buckling plate of
the heat sink exploded away from a fin group of the heat sink.
[0009] FIG. 3 is an enlarged view of a first fin of the fin group
of FIG. 2.
[0010] FIG. 4 is an exploded, enlarged view of a second fin of the
fin group and the buckling plate of the heat sink of FIG. 2.
[0011] FIG. 5 is an exploded, enlarged view of two adjacent first
fins of the fin group of FIG. 2.
[0012] FIG. 6 is an enlarged view of a circled portion VI of FIG.
1.
DETAILED DESCRIPTION
[0013] Referring to FIGS. 1-2, a heat sink 1000 in accordance with
an embodiment of the disclosure is shown. The heat sink 1000 is
used for dissipating heat generated by an electronic device, and
includes a fin group 100 and a buckling plate 11. The fin group 100
includes a plurality of first fins 10 connected together, and a
second fin 102 coupled to one of the first fins 10 which is located
at the outmost side of the group of first fins 10. Each of the
first fins 10, the second fin 102 and the buckling plate 11 is made
of metal such as aluminum, copper or an alloy thereof.
[0014] Also referring to FIGS. 3-4, each of the first fins 10 and
the second fin 102 includes a rectangular body 12, and two flanges
14 extending perpendicularly from top and bottom edges of the body
12 respectively, along the same direction. Each flange 14 defines a
buckling hole 16 therein. Each buckling hole 16 includes a main
portion 164 and an extending portion 162. A protrusion 122
protrudes outwardly from the edge of each body 12 near each
buckling hole 16. In particular, at each buckling hole 16 at the
top edge of the body 12, the protrusion 122 protrudes vertically
up; and at each buckling hole 16 at the bottom edge of the body 12,
the protrusion 122 protrudes vertically down.
[0015] Also referring to FIG. 6, a buckling sheet 18 extends
outwardly and horizontally from each flange 14 of each first fin
10. Each buckling sheet 18 includes a main body 184 near the
extending portion 162 of the buckling hole 16, and an extending
portion 182 extending outwardly from the main body 184. A width of
the main body 184 is larger than that of the extending portion 182.
The extending portion 162 of each buckling hole 16 has an extending
distance H equal to an extending distance D of the extending
portion 182 of each buckling sheet 18 plus the thickness of the
protrusion 122.
[0016] Also referring to FIG. 5, two adjacent first fins 10 are
designated as first fins 10a, 10b, for convenience of description.
The main bodies 184 of the buckling sheets 18 of the first fin 10a
are correspondingly received in the main portions 164 of the
buckling holes 16 of the first fin 10b. The extending portions 182
of the buckling sheets 18 of the first fin 10a are correspondingly
received in the extending portions 162 of the buckling holes 16 of
the first fin 10b. The protrusions 122 of the first fin 10b are
correspondingly buckled in the extending portions 162 of the
buckling holes 16 of the first fin 10a. Thus, the first fins 10a,
10b are connected together.
[0017] Also referring to FIG. 4, a tab 18a extends perpendicularly
from each flange 14 of the second fin 102 towards the other flange
14. The buckling plate 11 includes a rectangular body 13, and two
flanges 15 extending perpendicularly from top and bottom edges of
the body 13, respectively. The body 13 defines four buckling holes
17 near the top and bottom edges thereof, corresponding to the
buckling sheets 18a of the second fin 102.
[0018] The buckling plate 11 and the second fin 102 are arranged in
such a manner that the flanges 15 of the buckling plate 11 face the
flanges 14 of the second fin 102. After assembly, the flanges 15 of
the buckling plate 11 abut against inner sides of the flanges 14 of
the second fin 102. The tabs 18a of the second fin 102 are bent to
be engaged in the buckling holes 17 of the buckling plate 11,
thereby buckling the second fin 102 and the buckling plate 11
together.
[0019] According to the above, because the buckling plate 11 is
buckled in an inner side of the second fin 102 where the flanges 14
are located, so that the tabs 18a and the flanges 14 of the second
fin 102 are not directly exposed, a human operator is prevented
from being hurt by the heat sink 1000 during handling of the heat
sink 1000.
[0020] It is believed that the embodiment(s) and its advantages
will be understood from the foregoing description, and it will be
apparent that various changes may be made thereto without departing
from the spirit and scope of the disclosure or sacrificing all of
its material advantages, the examples hereinbefore described merely
being preferred or exemplary embodiments of the disclosure.
* * * * *