U.S. patent application number 11/964917 was filed with the patent office on 2009-07-02 for heat sink.
This patent application is currently assigned to FU ZHUN PRECISION INDUSTRY (SHEN ZHEN) CO., LTD.. Invention is credited to JIN-BIAO LIU.
Application Number | 20090165999 11/964917 |
Document ID | / |
Family ID | 40796681 |
Filed Date | 2009-07-02 |
United States Patent
Application |
20090165999 |
Kind Code |
A1 |
LIU; JIN-BIAO |
July 2, 2009 |
HEAT SINK
Abstract
A heat sink includes a plurality of fins. Each of fins includes
a body having two locking members at a top portion and a lower
portion thereof respectively. Each of the locking members includes
two parallel clasping plates. The two clasping plates of one of the
fins clasp the main body of another fin adjacent said one fin,
thereby interlocking the fins together.
Inventors: |
LIU; JIN-BIAO; (Shenzhen,
CN) |
Correspondence
Address: |
PCE INDUSTRY, INC.;ATT. Steven Reiss
458 E. LAMBERT ROAD
FULLERTON
CA
92835
US
|
Assignee: |
FU ZHUN PRECISION INDUSTRY (SHEN
ZHEN) CO., LTD.
Shenzhen City
CN
FOXCONN TECHNOLOGY CO., LTD.
Tu-Cheng
TW
|
Family ID: |
40796681 |
Appl. No.: |
11/964917 |
Filed: |
December 27, 2007 |
Current U.S.
Class: |
165/80.3 |
Current CPC
Class: |
H01L 2924/0002 20130101;
H01L 23/3672 20130101; H01L 2924/0002 20130101; H01L 2924/00
20130101 |
Class at
Publication: |
165/80.3 |
International
Class: |
F28F 7/00 20060101
F28F007/00 |
Claims
1. A heat sink comprising a plurality of fins snapping with each
other, each of fins comprising a body having two locking members at
a top portion and a lower portion thereof respectively, each of
locking members comprising a connecting plate extending outwardly
from the body and a clasp extending from the connecting plate, each
of the clasps spaced from the body of the fin and comprising a
first plate connecting with the connecting plate and a second plate
extending from the first plate, the fins connecting with each other
to assemble together via the clasps; Wherein when the fins is
assembled together, the claps of the fin located at a rear side
snaps with the body of the fin located at a front side, and the
first plates and the second plates of the clasps are located at the
rear and front sides of the body of the fin located at the front
side.
2. The heat sink as claimed in claim 1, wherein each locking member
further comprises an extension plate connecting with the connecting
plate the fins connecting with each other via the claps of the fin
located at the rear side snapping with the extension plates of the
fin located at the front side, the first plates and the second
plates of the clasps located at the rear and front sides of the
extension plates of the fin located at the front side.
3. The heat sink as claimed in claim 2, wherein the connecting
plates are perpendicular to the first plates of the locking
members, and the first plates are parallel to the body of each of
the fins.
4. The heat sink as claimed in claim 2, wherein the first plate of
each of the clasps has a length longer than that of the second
plate.
5. The heat sink as claimed in claim 1, wherein each of the fins
defines two cutouts at the top and lower portions of the body
thereof, and each of the locking members extends outwardly from an
edge of each of the cutout respectively.
6. The heat sink as claimed in claim 5, wherein the clasps of one
of the fins abut against an edge of the cutouts and the connecting
plate of adjacent fin.
7. The heat sink as claimed in claim 5, wherein the cutouts
communicate with each other to form two grooves at the top and
lower portions of the heat sink respectively, and the locking
members are received in the grooves respectively.
8. The heat sink as claimed in claim 1, wherein each clasp has a
U-shaped configuration with an opening.
9. The heat sink as claimed in claim 7, wherein the openings of the
claps of the locking members are opposite to each other.
10. The heat sink as claimed in claim 1, wherein the top portion
and the lower portion of each of the fins each has two locking
members.
11. The heat sink as claimed in claim 1 further comprising another
fin located at a front side of the fins, the another fin comprising
a body, the clasps of one of the fins located at a rear side of the
another fin snapping with the body of the another fin.
12. The heat sink as claimed in claim 10, wherein the another fin
defines locking members located at a top portion and a lower
portion, each of the locking member comprising an extension plate
and a connecting plate extending outwardly from the extension
plate, the clasps of the fin clasping with the extension plates and
abutting against the connecting plate of the another fin.
13. A heat sink adapted for dissipating heat from an electronic
component, comprising: a plurality of fins, each fin comprising a
main body and at least one locking member punched from the main
body, the at least one locking member comprising two parallel
clasping plates; wherein two clasping plates of one of the fins
clasping the main body of another fin adjacent said one fin,
thereby interlocking the fins together.
14. The heat sink as claimed in claim 13, wherein the main body
defines a cutout above the locking member, the two clasping plates
of said one fin clasping the main body of the adjacent fin at the
cutout.
15. The heat sink as claimed in claim 14, wherein the at least one
locking member further comprises a baffle plate perpendicularly
interconnecting with the two clasping plates, the baffle plate of
the adjacent fin abutting against side edges of the two clasping
plates of said one fin.
16. The heat sink as claimed in claim 15, wherein the two clasping
plates are parallel to the main body.
17. The heat sink as claimed in claim 15, wherein an opening is
defined by punching the at least one locking member, and a longer
inner edge of the opening has a length equal to that of the two
clasping plates.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a heat sink, more
particularly to a heat sink for dissipating heat generated by an
electronic component, and particularly to a heat sink with a
plurality of interlocked fins that are easily and securely
interlocked.
[0003] 2. Description of related art
[0004] It is well known that during operation computer electronic
devices such as central processing units (CPUs) can generate large
amounts of heat. The heat must be quickly removed from the
electronic device to prevent it from becoming unstable or being
damaged. Typically, a heat sink is attached to an outer surface of
the electronic device to absorb heat from the electronic device,
and the heat absorbed by the heat sink is then dissipated to
ambient air.
[0005] FIG. 5 related heat sink 30 which includes a plurality of
fins stacked together. Each of the fins comprises a rectangular
body 32 and two flanges 34 extending perpendicularly from
respective top and bottom side edges of the body 32. Each fin
provides recess portions 36 and protrusion portions 38 at the
flanges 34 thereof. The protrusion portions 38, with protruding
points 39 formed thereon. In assembly, the protrusion portions 38
of one fin are inserted into the corresponding recess portions 36
of an adjacent fin to cause the protruding point 39 thereof to
engage with a front face of the adjacent fin, thereby assembling
the fins together. However, the protruding points 39 of the fins
are small-sized and therefore providing a loosened combination
ability. The protruding points 39 of the one fin are easily
disengaged from the front face of the adjacent fin when the
assembled fins are subject to mechanical shocks.
[0006] What is needed, therefore, is a heat sink which has a
plurality of fins securely keeping with each other.
SUMMARY OF THE INVENTION
[0007] A heat sink includes a plurality of fins. Each of fins
includes a body having two locking members at a top portion and a
lower portion thereof respectively. Each of the locking members
includes two parallel clasping plates. The two clasping plates of
one of the fins clasp the main body of another fin adjacent said
one fin, thereby interlocking the fins together.
[0008] Other advantages and novel features will become more
apparent from the following detailed description of preferred
embodiments when taken in conjunction with the accompanying
drawings, in which:
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] 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.
[0010] FIG. 1 is an assembled view of a heat sink in accordance
with a preferred embodiment of the present invention;
[0011] FIG. 2 is a partial assembled view of the heat sink of FIG.
1;
[0012] FIG. 3 is an enlarged view of an indicated portion IV of
FIG. 2;
[0013] FIG. 4 is an enlarged view of an indicated portion V of FIG.
1; and
[0014] FIG. 5 is an isometric view of related heat sink.
DETAILED DESCRIPTION OF THE INVENTION
[0015] Referring to FIG. 1, a heat sink in accordance with a
preferred embodiment of the present invention comprises a first fin
11 and a plurality second fins 13 located at a rear side of the
first fin 11. The first fin 11 and the second fins 13 firmly grasp
each other.
[0016] Referring to FIGS. 2-3, the first fin 11 comprises a
rectangular body 110 with a pair of elongated flanges 111 extending
outwardly from lateral edges thereof along the same direction. Four
cutouts 113 are defined in the body 110, generally in two upper
corner sections and two lower corner sections thereof. Each cutout
113 is enclosed by an outer edge (not labeled) parallel to the
flange 111 near the corresponding cutout 113, and an inner edge
(not labeled) parallel to the outer edge, and a connecting edge
(not labeled) connecting with the out and inner edges thereof. A
locking member 115 extends from the inner edge of each cutout 113.
Each locking portion 115 comprises an extension plate 1151 and a
connecting plate 1153. The extension plate 1151 connects with the
connecting edge of each cutout 113 and is coplanar with the body
110. The connecting plate 1153 is perpendicularly bent from an end
of the extension plate 1151.
[0017] Each second fin 13 is similar to the first fin 11 and
comprises a rectangular body 130 with a pair of elongated flanges
131 extending outwardly from lateral edges thereof in the same
direction. Four cutouts 133 are defined in the body 130, generally
in two upper corner sections and two lower corner sections thereof.
Each cutout 133 is enclosed by an outer edge (not labeled) parallel
to the flange 131 near the corresponding cutout 133, and an inner
edge (not labeled) parallel to the outer edge, and a connecting
edge (not labeled) connecting with the outer and inner edges
thereof. A locking member 135 is punched from the body 130 at the
cutout 133. Each locking portion 135 comprises an extension plate
1351, a connecting plate 1353 extending from the extension plate
1351 and a clasp 1355 extending from the connecting plate 1353. The
extension plate 1351 connects with the connecting edge of each
cutout 133 and is coplanar with the body 130. The connecting plate
1353 is perpendicularly to the extension plate 1151 and extends
outwardly from the extension plate 1351. The clasp 1355 has a
U-shaped configuration with an opening (not labeled). A total
length of the clasp 1355 is equal to that of the longer out edge of
the cutout 133. The clasp 1355 comprises a first plate 1356
perpendicular extending outwardly from the connecting plate 1353, a
second plate 1357 parallel to and spaced from the first plate 1356
and a connecting plate (not labeled) connecting with the first and
second plates 1356, 1357. The first and second plates 1356, 1357
are parallel to the body 130. The first plate 1356 is longer than
the second plate 1357. The openings of the clasps 1355 located at
the upper corner and the lower corner of the body 130 are opposite
respectively.
[0018] Referring to FIG. 4, before assembled, each second fin 13
and the first fin 11 has the extension plates 1151, 1351 and the
connecting plates 1153, 1353 by punching. The first fin 11 is
placed in front of and parallel to the second fins 13. The
connecting plates 1153, 1353 located at the corresponding cutout
113 of the first and second fins 11, 13 are aligned with each
other. A free end of each connecting plate 1353 of the second fin
13 forms one clasp 1355 by punching. The clasps 1355 located at the
rear side of the first fin 11 firmly snap the extension plates 1151
of the first fin 11. In this state, the first and second plates
1356, 1357 of the clasps 1355 are located at the rear side and a
front side of the body 110 of the first fin 11 respectively; each
clasp 1355 abuts against the connecting plate 1153 of the
corresponding locking member 115 and the inner edge of the first
fin 11. Then the second fins 13 connect with each other in turn in
the same way as described above with uniform direction, thus, the
heat sink 10 is formed. The cutouts 113, 133 are aligned with each
other to form four elongated grooves (not labeled). The locking
member 135 of the second fins 13 are received in the grooves. The
flanges 111,113 of the first and second fins 11, 13 are connecting
each other to form two planar surfaces (not labeled) for connecting
the electronic component. The number of the second fins 13 used may
be varied according to need.
[0019] It is believed that the present embodiments and their
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 invention or
sacrificing all of its material advantages, the examples
hereinbefore described merely being preferred or exemplary
embodiments of the invention.
* * * * *