U.S. patent application number 13/747119 was filed with the patent office on 2014-07-24 for heat dissipation unit used in memory device.
This patent application is currently assigned to COMPTAKE TECHNOLOGY INC.. The applicant listed for this patent is CompTake Technology Inc.. Invention is credited to Wei-Hau CHEN, Chen-Fong LIN, Hsiao-Jung LIN.
Application Number | 20140202675 13/747119 |
Document ID | / |
Family ID | 51206812 |
Filed Date | 2014-07-24 |
United States Patent
Application |
20140202675 |
Kind Code |
A1 |
CHEN; Wei-Hau ; et
al. |
July 24, 2014 |
HEAT DISSIPATION UNIT USED IN MEMORY DEVICE
Abstract
A heat dissipation unit used in a memory device includes two
heat dissipation sheets, two sides at the top edge of each heat
dissipation sheet are bent for respectively forming two lugs having
a height difference, and two buckle pieces having a height
difference between the two lugs, wherein each lug and each buckle
piece of a heat dissipating sheet is mutually stacked onto a
corresponding lug and buckle piece of the other heat dissipating
sheet, respectively.
Inventors: |
CHEN; Wei-Hau; (New Taipei
City, TW) ; LIN; Chen-Fong; (New Taipei City, TW)
; LIN; Hsiao-Jung; (New Taipei City, TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
CompTake Technology Inc. |
New Taipei City |
|
TW |
|
|
Assignee: |
COMPTAKE TECHNOLOGY INC.
NEW TAIPEI CITY
TW
|
Family ID: |
51206812 |
Appl. No.: |
13/747119 |
Filed: |
January 22, 2013 |
Current U.S.
Class: |
165/185 |
Current CPC
Class: |
H01L 2224/32245
20130101; F28F 2275/085 20130101; H01L 23/4093 20130101; H01L
23/552 20130101; H01L 23/3672 20130101 |
Class at
Publication: |
165/185 |
International
Class: |
F28F 7/00 20060101
F28F007/00 |
Claims
1. A heat dissipation unit used in a memory device, including: a
first sheet dissipation sheet, two sides at the top edge of the
first sheet dissipation sheet being bent for respectively forming a
first lug and a second lug having a height difference relative to
the first lug, and a first buckle piece and a second buckle piece
having a height difference relative to the first buckle piece
between the first lug and the second lug; and a second sheet
dissipation sheet, two sides at the top edge of the second sheet
dissipation sheet being bent for respectively forming a third lug
and a fourth lug having a height difference relative to the third
lug, and a third buckle piece and a fourth buckle piece having a
height difference relative to the third buckle piece between the
third lug and the fourth lug; wherein the first lug and the fourth
lug are mutually stacked onto each other, the second lug and the
third lug are mutually stacked onto each other, the first buckle
piece and the fourth buckle piece are mutually stacked onto each
other and buckled, and the second buckle piece and the third buckle
piece are mutually stacked onto each other and buckled.
2. The heat dissipation unit according to claim 1, wherein the
first buckle piece is disposed close to the first lug and a height
difference is formed between the first buckle piece and the first
lug, the second buckle piece is disposed close to the second lug
and a height difference is formed between the second buckle piece
and the second lug, the third buckle piece is disposed close to the
third lug and a height difference is formed between the third
buckle piece and the third lug, and the fourth buckle piece is
disposed close to the fourth lug and a height difference is formed
between the fourth buckle piece and the fourth lug; the fourth lug
is pressed on the first lug, the first buckle piece is pressed on
the fourth buckle piece, the second lug is pressed on the third
lug, and the third buckle piece is pressed on the second buckle
piece.
3. The heat dissipation unit according to claim 1, wherein the
first buckle piece is formed with a first buckle hole, the fourth
buckle piece is formed with a first buckle protrusion corresponding
to the buckle hole, and the first buckle piece and the fourth
buckle piece are mutually buckled through the first buckle
protrusion being buckled in the first buckle hole; the third buckle
piece is formed with a second buckle hole, the second buckle piece
is formed with a second buckle protrusion corresponding to the
second buckle hole, and the third buckle piece and the second
buckle piece are mutually buckled through the second buckle
protrusion being buckled in the second buckle hole.
4. The heat dissipation unit according to claim 3, wherein the
second buckle protrusion of the first heat dissipation sheet is
protruded from a top surface of the second buckle piece, and the
second buckle protrusion is formed as a first wedge having a large
area part oriented to face towards a bending direction of the
second buckle piece and a small area part; the first buckle
protrusion of the second heat dissipation sheet is protruded from a
top surface of the fourth buckle piece, and the first buckle
protrusion is formed as another wedge oriented to face towards a
bending direction of the fourth buckle piece and a small area part
is.
5. The heat dissipation unit according to claim 1, wherein a beam
member is formed between the first buckle piece and the second
buckle piece at the top edge of the first heat dissipation sheet;
another beam member is formed between the third buckle piece and
the fourth buckle piece of the second heat dissipation sheet; two
beam members of the first and the second heat dissipation sheets
are combined for forming a shield plate used for shielding the top
edge of the first heat dissipation sheet and the top edge of the
second heat dissipation sheet.
6. The heat dissipation unit according to claim 5, wherein two
sides of the beam member of the first heat dissipation sheet are
respectively spaced from the first buckle piece and the second
buckle piece at an interval; two sides of the beam member of the
second heat dissipation sheet are respectively spaced from the
third buckle piece and the fourth buckle piece at an interval.
7. The heat dissipation unit according to claim 1, wherein the
first heat dissipation sheet is further formed with at least two
rows of heat dissipation holes staggeringly arranged, and the
second heat dissipation sheet is further formed with at least two
rows of another heat dissipation holes staggeringly arranged.
8. The heat dissipation unit according to claim 7, wherein the
first heat dissipation sheet is formed with a first fitting surface
on which a first heat conductive medium is provided; the second
heat dissipation sheet is formed with a second fitting surface on
which a second heat conductive medium is provided.
9. The heat dissipation unit according to claim 8, wherein the at
least two rows of heat dissipation holes of the first heat
dissipation sheet are arranged between the location where the first
heat conductive medium being provided and the top edge of the first
heat dissipation sheet; the at least two rows of heat dissipation
holes of the second heat dissipation sheet are arranged between the
location where the second heat conductive medium being provided and
the top edge of the second heat dissipation sheet.
10. The heat dissipation unit according to claim 1, wherein the
first heat dissipation sheet is formed with a first fitting surface
facing a first direction, and the second heat dissipation sheet is
formed with a second fitting surface facing a second direction
opposite to the first direction; the first lug, the second lug, the
first buckle piece and the second buckle piece of the first heat
dissipation sheet are all protruded towards the first fitting
surface in the same direction; the third lug, the fourth lug, the
third buckle piece and the fourth buckle piece of the second heat
dissipation sheet are all protruded towards the second fitting
surface in the same direction; the first buckle hole of the first
buckle piece is formed with a first buckle inner flange, the second
buckle hole of the third buckle piece is formed with a second
buckle inner flange; the second buckle protrusion of the second
buckle piece is formed with a small area part corresponding to the
first buckle inner flange thereby being enabled to be abutted with
each other; the first buckle protrusion of the fourth buckle piece
is formed with another small area part corresponding to the second
buckle inner flange thereby being enabled to be abutted with each
other.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a heat dissipation unit,
especially to a heat dissipation unit used in a memory device.
[0003] 2. Description of Related Art
[0004] The computer hardware has been designed to have a higher
speed and higher frequency for enhancing the working performance,
so the consumed power is relatively higher; compared with related
art, the newly-developed electronic unit generates a considerable
amount of heat; take a memory device for instance, in order to
match up with the high calculation speed of a processor, the clock
and the transmission bandwidth are designed to be equipped with
higher speed and higher frequency, so the working temperature of
the memory device is inevitably raised and the generated heat is
also considerable. The working temperature which gets higher and
higher would affect the performance of the memory device or would
even cause the memory device to be damaged.
[0005] The heat dissipation device used in a conventional memory
device includes two heat dissipation sheets, and the two heat
dissipation sheets are correspondingly installed and fitted at two
opposite sides of the memory device, so the high temperature
generated while the memory device is working could be dissipated
through the two heat dissipation sheets, however, the two heat
dissipation sheets have to be tightly and stably fitted at the two
opposite sides of the memory device for performing the heat
dissipation effect, so a complicated structural design is made for
meeting the requirement of being tightly and stably fitted.
[0006] However, sometimes the design is overly complicated, an
action of lifting to a proper angle has to be done for allowing the
two heat dissipation sheets to be fitted with each other (not being
fitted in parallel), such design is not suitable to be used for
automatic and massive production and assembly; moreover, the
securing between the two heat dissipation sheets is inadequate, so
a movement may be generated between the two heat dissipation sheets
thereby causing dislocation; the two dislocated heat dissipation
sheets are not able to perform the anticipated heat dissipation
effect, or the memory device may be slowed or damaged.
[0007] As such, the present invention provides a novel heat
dissipation unit for improving the above-mentioned shortages.
SUMMARY OF THE INVENTION
[0008] The present invention is to provide a heat dissipation unit
used in a memory device, wherein the assembly is enabled to be done
by stacking and buckling with a means of being fitted in parallel,
and a simplified structure is also provided thereby being suitable
to be adopted in automatic and massive production and assembly and
saving the labor cost.
[0009] In another aspect, the present invention is to provide a
heat dissipation unit used in a memory device, wherein any end of
the heat dissipation unit is enabled to be crossly stacked with
each other, and a first and a fourth buckle pieces are enabled to
be mutually buckled and a second and a third buckle pieces are
enabled to be mutually buckled, thereby achieving a buckling and
fastening effect capable of completely retraining any movement and
preventing dislocation.
[0010] Accordingly, the present invention provides a heat
dissipation unit used in a memory device, which includes a first
sheet dissipation sheet, two sides at the top edge thereof being
bent for respectively forming a first lug and a second lug having a
height difference relative to the first lug, and a first buckle
piece and a second buckle piece having a height difference relative
to the first buckle piece between the first lug and the second lug;
and a second sheet dissipation sheet, two sides at the top edge
thereof being bent for respectively forming a third lug and a
fourth lug having a height difference relative to the third lug,
and a third buckle piece and a fourth buckle piece having a height
difference relative to the third buckle piece between the third lug
and the fourth lug; the first lug and the fourth lug are mutually
stacked onto each other, the second lug and the third lug are
mutually stacked onto each other, the first buckle piece and the
fourth buckle piece are mutually stacked onto each other and
buckled, and the second buckle piece and the third buckle piece are
mutually stacked onto each other and buckled.
[0011] In comparison with related art, the present invention has
advantageous features as follows. The assembly can be done without
an action of lifting to a proper angle prior to the fitting; a
simplified structure is provided thereby being suitable for
automatic and massive production thereby saving the labor cost; any
end of the heat dissipation unit can be for crossly stacking,
wherein the first and the fourth buckle pieces and the second and
the third buckle pieces are enabled to be buckled with each other,
thereby restraining any movement between the two heat dissipation
sheets and preventing dislocation.
BRIEF DESCRIPTION OF DRAWING
[0012] FIG. 1 is a perspective exploded view showing the heat
dissipation unit according to a preferred embodiment of the present
invention;
[0013] FIG. 2 is a perspective exploded view showing the structure
between the heat dissipation unit and a memory device according to
a preferred embodiment of the present invention;
[0014] FIG. 3 is a perspective assembled view showing the structure
between the heat dissipation unit and the memory device according
to a preferred embodiment of the present invention; and
[0015] FIG. 4 is a cross sectional view of FIG. 3 in another
preferred embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
[0016] A preferred embodiment of the present invention will be
described with reference to the drawings.
[0017] The present invention provides a heat dissipation unit used
in a memory device, wherein FIG. 1 is a perspective exploded view
showing the heat dissipation unit 100 according to a preferred
embodiment of the present invention; FIG. 2 is a perspective
exploded view showing the structure between the heat dissipation
unit 100 and a memory device 400 according to a preferred
embodiment of the present invention; FIG. 3 is a perspective
assembled view showing the structure between the heat dissipation
unit 100 and the memory device 400 according to a preferred
embodiment of the present invention; and FIG. 4 is a cross
sectional view illustrating the heat dissipation unit 100 and the
memory device 400 after being assembled.
[0018] Please refer to FIG. 1 and in accordance with FIG. 2 and
FIG. 3. The heat dissipation unit 100 used in memory device is
fitted at two opposite sides of a memory device 400 (as shown in
FIG. 2) for the purpose of heat dissipation. The heat dissipation
unit 100 includes two identical heat dissipation sheets; according
to this embodiment of the present invention, a first heat
dissipation sheet 1 and a second heat dissipation sheet 1a
identical to the first dissipation sheet 1 are adopted, thus the
first heat dissipation sheet 1 and the second heat dissipation
sheet 1a can be made by a same mold thereby reducing the
expenditure for mold casting.
[0019] The first heat dissipation sheet 1 is formed with a first
fitting surface 14 facing the rear direction, and two sides at the
top edge of the first heat dissipation sheet 1 are bent for
respectively forming a first lug 111 and a second lug 121 having a
height difference relative to the first lug 111 and both protruding
towards the first fitting surface 14, and a first buckle piece 112
and a second buckle piece 122 having a height difference relative
to the first buckle piece 112 between the first lug 111 and the
second lug 121. Wherein, the first buckle piece 112 is disposed
close to the first lug 111 and a height difference is formed
between the first buckle piece 112 and the first lug 111, thereby
forming a first buckling structure 11; the second buckle piece 122
is disposed close to the second lug 121 and a height difference is
formed between the second buckle piece 122 and the second lug 121,
thereby forming a second buckling structure 12. In addition, the
first buckle piece 112 is formed with a buckle hole 113, the second
buckle piece 122 is formed with a buckle protrusion 123
corresponding to the buckle hole 113, and the buckle protrusion 123
of the second buckle piece 122 is enabled to be buckled in the
buckle hole 113 of the first buckle piece 112.
[0020] The structure of the second heat dissipation sheet 1a is the
same as that of the first heat dissipation sheet 1, the second heat
dissipation sheet 1a includes a third lug 111a and a fourth lug
121a, a third buckle piece 112a and a fourth buckle piece 122a, and
a second fitting surface 14a facing the front direction; the third
lug 111a, the fourth lug 121a, the third buckle piece 112a and the
fourth buckle piece 122a are all protruded towards the second
fitting surface 14a. Wherein, the third buckle piece 112a and the
third lug 111a form the first buckling structure 11, the fourth
buckle piece 122a and the fourth lug 121a form the second buckling
structure 12, and the third buckle piece 112a is formed with a
buckle hole 113 and the fourth buckle piece 122a is formed with a
buckle protrusion 123.
[0021] Substantially, the first buckling structure 11 and second
right buckling structure 12 are enabled to be correspondingly
buckled and fastened with each other; under the circumstance of the
second heat dissipation sheet 1a being the identical to the first
heat dissipation sheet 1, the second heat dissipation sheet 1a is
enabled to be buckled with the first heat dissipation sheet 1
through being rotated for 180 degrees.
[0022] In assembling, the first lug 111 and the fourth lug 121a are
correspondingly stacked onto each other with a means of being
fitted in parallel, the second lug 121 and the third lug 111a are
correspondingly stacked onto each other with a means of being
fitted in parallel, the first buckle piece 112 and the fourth
buckle piece 122a are correspondingly stacked onto each other with
a means of being fitted in parallel, and the second buckle piece
122 and the third buckle piece 112a are also correspondingly
stacked onto each other with a means of being fitted in parallel,
thereby enabling the left and the right side of the heat
dissipation unit 100 to be stably buckled and fastened. In details,
the fourth lug 121a is pressed on the first lug 111, the first
buckle piece 113 is pressed on the fourth buckle piece 122a, so the
left side of the heat dissipation unit 100 is crossly stacked with
a means which will be described hereinafter; the second lug 121 is
pressed on the third lug 111a, the third buckle piece 112a is
pressed on the second buckle piece 122, so the right side of the
heat dissipation unit 100 is crossly stacked with a means which
will be described hereinafter.
[0023] Accordingly, the buckling means for the left and the right
side of the heat dissipation unit 100 are totally the same, in
which the first buckling structure 11 of one heat dissipation sheet
is buckled with the second buckling structure 12 of another heat
dissipation sheet, and the two lugs 111, 121a and the two buckle
pieces 112, 122a at the left side of the heat dissipation unit 100
are crossly stacked, and the two lugs 121, 111a and the two buckle
pieces 122, 112a at the right side are crossly stacked, thereby
achieving an effect of restraining an up/down movement; the first
and the fourth buckle pieces 112, 122a and the second and the third
buckle pieces 122, 112a are enabled to be buckled with each other,
thereby achieving an effect of restraining a front/rear movement
and a left/right movement. Please refer to FIG. 2 and FIG. 4,
according to this embodiment, the rear of the buckle hole 113 of
the first buckle piece 112 is formed with a first buckle inner
flange 1131 (as shown in FIG. 4), the front of the buckle hole 113
of the third buckle piece 112a is formed with a second buckle inner
flange 1131a (as shown in FIG. 2), the buckle protrusion 123 of the
second buckle piece 122 is formed with a small area part 1233
corresponding to the first buckle inner flange 1131 thereby being
enabled to be abutted with each other, the buckle protrusion 123 of
the fourth buckle piece 122a is formed with another small area part
1233 corresponding to the second buckle inner flange 1131a thereby
being enabled to be abutted with each other.
[0024] In details, the buckle protrusion 123 is protruded from the
top surface of the second buckle piece 122 or the fourth buckle
piece 122a; as shown in FIG. 2, the buckle protrusion 123 is formed
as a wedge having a bottom area part 1231, a large area part 1232
and the small area part 1233, the bottom area part 1231 is fitted
to the top surface of the second buckle piece 122 or the fourth
buckle piece 122a, and the large area part 1232 is oriented to face
towards the first fitting surface 14 or the second fitting surface
14a; in another words, the large area part 1232 is oriented to face
towards the bending direction (or protruding direction) of the
second buckle piece 122 or the fourth buckle piece 122a). In
another preferred embodiment, the buckle protrusion 123 can be
formed by punching as shown in FIG. 4, so as to be formed with a
protruding member having the exposed large area part 1232 and the
exposed small area part 1233.
[0025] A beam member 131, which is protruded and oriented to face
the fitting surface 14, 14a, is formed between the first and the
second buckling structures 11,12 at the top edge of each of the
heat dissipation sheets 1, 1a, and two sides of the beam member 131
are respectively spaced from the first and the second buckling
structure 11, 12 at an interval, so when two heat dissipation
sheets 1, 1a are mutually fitted, the two beam members 131 are
combined for forming a shield plate 13 used for shielding the top
edges of the two heat dissipation sheets 1, 1a, thereby providing
an embellishing effect.
[0026] The fitting surfaces 14, 14a of the two heat dissipation
sheets 1, 1a are not only provided with a heat conductive medium 3
respectively, but also formed with at least two rows of heat
dissipation holes allowing hot air to flow out, the two rows of
heat dissipation holes respectively have plural upper heat
dissipation holes 15 and plural lower heat dissipation holes 16,
and each of the upper heat dissipation holes 15 is staggeringly
arranged with each of the corresponding lower heat dissipation
holes 16 (i.e. being arranged on different perpendicular); as shown
in the figures, hot air is able to flow out from each of the upper
heat dissipation holes 15 and each of the lower heat dissipation
holes 16, thereby providing a hot air distribution effect.
Moreover, all the heat dissipation holes of each of heat
dissipation sheets are arranged between the location where the heat
conductive medium 3 being provided and the top edge of the heat
dissipation sheet 1, 1a, so the heat dissipation holes are all
formed at the upper portion of the heat dissipation unit 100 (as
shown in FIG. 4), thereby complying the principle of hot air
ascending and allowing the hot air to be discharged more
effectively.
[0027] Please refer to FIG. 4, the memory device 400 includes a
circuit board 4 and memory chips 41 respectively and electrically
disposed at two opposite sides of the circuit board 4, the two heat
dissipation sheets 1, 1a respectively utilize the heat conductive
medium 3 for being adhered on the memory chips 41 arranged at the
two opposite sides of the memory device 400, thereby providing an
effect of assisting heat to be dissipated from the memory chips
41.
[0028] As what has been disclosed above, the present invention has
following advantageous features comparing to related art: the
assembly can be done by stacking and buckling with a means of being
fitted in parallel, so an action of lifting to a proper angle for
being fitted is not needed; in addition, the present invention
provides a simplified structure which can be massively produced and
assembled thereby saving the labor cost; moreover, any end of the
heat dissipation unit 100 can be used for crossly stacking by
restraining of the two heat dissipation sheets 1, 1a from up/down
movement, and the first and the fourth buckle pieces 112, 122a and
the second and the third buckle pieces 122, 112a are enabled to be
buckled with each other, thereby restraining the two heat
dissipation sheets from front/rear and left/right movements,
thereby achieving a buckling and fastening effect capable of
completely retraining any movement, so dislocation caused by
movement is prevented.
[0029] Furthermore, the present invention has more advantageous
features, such as, through the shielding of the shield plate 13,
the heat dissipation unit 100 is provided with the embellishing
effect; the heat dissipation effect can be enhanced through the
upper and the lower heat dissipation holes 15, 16, and with the
design of the upper and the lower heat dissipation holes 15, 16
being staggeringly arranged, the hot air distribution effect is
provided; the upper and the lower heat dissipation holes 15, 16 are
formed at the upper portion of the heat dissipation unit 100,
thereby complying the principle of hot air ascending and allowing
the hot air to be discharged more effectively.
[0030] Although the present invention has been described with
reference to the foregoing preferred embodiment, it will be
understood that the invention is not limited to the details
thereof. Various equivalent variations and modifications can still
occur to those skilled in this art in view of the teachings of the
present invention. Thus, all such variations and equivalent
modifications are also embraced within the scope of the invention
as defined in the appended claims.
* * * * *