U.S. patent application number 11/044733 was filed with the patent office on 2005-08-25 for heat radiating apparatus.
Invention is credited to Kim, Kyoung-Ho, Ko, Ki-Tak.
Application Number | 20050183849 11/044733 |
Document ID | / |
Family ID | 34863618 |
Filed Date | 2005-08-25 |
United States Patent
Application |
20050183849 |
Kind Code |
A1 |
Ko, Ki-Tak ; et al. |
August 25, 2005 |
Heat radiating apparatus
Abstract
A heat radiating apparatus is provided which includes at least
two radiating portions positioned adjacent to one another, each of
the radiating portions comprising a plurality of radiating fins, at
least one heat pipe thermally connecting the radiating portions to
each other, and a fan unit provided at a position corresponding to
a side surface of the radiating portions and configured to generate
an airflow between the radiating fins of the respective radiating
portions. A heat radiating apparatus so constructed has decreased
manufacturing cost and increased heat radiation efficiency.
Inventors: |
Ko, Ki-Tak; (Busan City,
KR) ; Kim, Kyoung-Ho; (Suwon City, KR) |
Correspondence
Address: |
FLESHNER & KIM, LLP
P.O. BOX 221200
CHANTILLY
VA
20153
US
|
Family ID: |
34863618 |
Appl. No.: |
11/044733 |
Filed: |
January 28, 2005 |
Current U.S.
Class: |
165/104.33 ;
257/E23.088; 257/E23.099 |
Current CPC
Class: |
H01L 2924/0002 20130101;
H01L 2924/0002 20130101; F28D 15/0275 20130101; H01L 23/427
20130101; H01L 2924/00 20130101; H01L 23/467 20130101 |
Class at
Publication: |
165/104.33 |
International
Class: |
F28D 015/00 |
Foreign Application Data
Date |
Code |
Application Number |
Feb 19, 2004 |
KR |
2004-0011111 |
Apr 10, 2004 |
KR |
2004-0024721 |
Claims
What is claimed is:
1. A heat radiating apparatus, comprising: at least two radiating
portions positioned adjacent to one another, each of the radiating
portions comprising a plurality of radiating fins; at least one
heat pipe thermally connecting the radiating portions to each
other; and a fan unit provided at a position corresponding to a
side surface of the radiating portions and configured to generate
an airflow between the radiating fins of the respective radiating
portions.
2. The heat radiating apparatus as claimed in claim 1, wherein each
of the radiating portions further comprise a base plate on which
the plurality of radiating fins are formed at predetermined
intervals.
3. The heat radiating apparatus as claimed in claim 2, wherein the
plurality of radiating fins are integrally formed on the base plate
at the predetermined intervals.
4. The heat radiating apparatus as claimed in claim 2, wherein the
at least one heat pipe thermally connects the base plates of the
radiating portions to each other.
5. The heat radiating apparatus as claimed in claim 1, wherein the
at least one heat pipe thermally connects the base plate of at
least one of the radiating portions to the plurality of radiating
fins of the other of the radiating portions.
6. The heat radiating apparatus as claimed in claim 1, wherein the
at least two radiating portions are laminated to one another.
7. The heat radiating apparatus as claimed in claim 1, wherein the
fan unit is positioned adjacent an outer side surface of the at
least two radiating portions.
8. The heat radiating apparatus as claimed in claim 1, wherein the
fan unit is interposed between inner side surfaces of the at least
two radiating portions.
9. The heat radiating apparatus as claimed in claim 1, wherein the
base plate is formed with a pipe hole in which the heat pipe is
seated.
10. The heat radiating apparatus as claimed in claim 9, wherein the
heat pipe is inserted into the pipe hole and welded thereto.
11. The heat radiating apparatus as claimed in claim 1, wherein the
fan unit is positioned so as to cause the airflow to flow through
channels provided between the plurality of radiating fins of the
respective radiating portions.
12. The heat radiating apparatus as claimed in claim 1, wherein a
base plate of at least one of the radiating portions is configured
to contact with a heat source.
13. The heat radiating apparatus as claimed in claim 1, wherein a
cross section of the radiating fins of at least one of the
radiating portions is in the shape of a [ providing a gap between
the plurality of radiating fins when the respective plurality of
radiating fins are attached to one another.
14. The heat radiating apparatus as claimed in claim 1, wherein the
at least one heat pipe is in the shape of a U.
15. The heat radiating apparatus as claimed in claim 1, wherein the
at least two radiating portions are formed of at least one of
copper or aluminum.
16. A heat radiating apparatus, comprising: a first radiating
portion comprising a base plate in contact with a heat source and a
plurality of radiating fins provided on the base plate configured
to radiate heat; at least one heat pipe having one end thermally
connected to the base plate and configured to transfer heat away
from the first radiating portion; a second radiating portion
thermally connected to the other end of the at least one heat pipe
and configured to transfer heat away from the second radiating
portion, the second radiating portion comprising a plurality of
radiating fins configured to radiate heat; a fan unit installed
adjacent the first and second radiating portions and configured to
cause ambient air to pass through the first and second radiating
portions and be discharged outside thereof.
17. The heat radiating apparatus as claimed in claim 16, wherein
the fan unit is positioned adjacent an outer side surface of the
first and second radiating portions.
18. The heat radiating apparatus as claimed in claim 16, wherein
the fan unit is interposed between the first and second radiating
portions.
19. The heat radiating apparatus as claimed in claim 16, wherein
the radiating fins of the first radiating portion are integrally
formed on the base plate.
20. The heat radiating apparatus as claimed in claim 16, wherein
airflow generated by the fan unit passes through gaps formed
between the plurality of radiating fins provided on the respective
first and second radiating portions.
21. The heat radiating apparatus as claimed in claim 20, wherein
the air discharged from the fan unit passes through the plurality
of radiating fins of the first radiating portion and comes into
direct contact with the base plate of the first radiating
portion.
22. The heat radiating apparatus as claimed in claim 16, wherein
the at least one heat pipe is in the shape of a U.
23. The heat radiating apparatus as claimed in claim 16, wherein a
cross section of the plurality of radiating fins of the second
radiating portion is in the shape of a [ providing a gap between
the respective plurality of radiating fins when the plurality of
radiating fins are attached to one another.
24. The heat radiating apparatus as claimed in claim 16, wherein
the first and second radiating portions are formed of at least one
of copper or aluminum.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The invention relates to a heat radiating apparatus.
[0003] 2. Background of the Related Art
[0004] As the performance of electronic equipment improves, heat
generated from inner parts tends to increase considerably. If the
heat is not smoothly radiated, the adjacent parts, as well as the
corresponding heating parts, are influenced by the heat, so that
the electronic equipment does not exhibit the desired performance
or is out of order due to damage to the parts.
[0005] Thus, in order to radiate the heat generated from the heat
source of the electronic equipment, a heat related art heat
radiating apparatus such as that shown in FIG. 1 is generally used.
Referring to the FIG. 1, a casing 1 is shaped in a hexahedron both
opposite faces of which are open. Radiating fins 3 each in the
shape of a plate having a predetermined thickness and width are
provided at regular intervals extending from one side surface to
the other opposite side surface in the casing 1. Gaps between the
radiating fins 3 form channels that allow air to flow from one of
the open faces to the other open face of the casing 1.
[0006] Heat pipes 5 are installed to extend from the one side
surface to the opposite side surface of the casing 1 to penetrate
the casing 1 and the radiating fins 3. The heat pipes 5 serve to
forcibly transfer the heat, which is generated by the heat source,
to the radiating fins 3.
[0007] One end of each of the heat pipes 5 is connected to a heat
source contact portion 7. The heat source contact portion 7, which
is made of a material with a superior heat transfer rate, is
installed so as to contact with a side of a heat source.
[0008] One of the open faces of the casing 1 is provided with a fan
unit 9 for generating an airflow that passes between the radiating
fins 3. The airflow takes the heat from the radiating fins 3, and
radiates the heat outside of the heat radiating apparatus.
[0009] However, the heat radiating apparatus according to the
above-described related art has at least the following problems.
That is, the heat is transferred to the radiating fins 3, which are
positioned a predetermined distance from the heat source contact
portion 7, through the heat pipes 5. The heat is then radiated by
allowing the airflow generated by the fan unit 9 to pass between
the radiating fins 3. However, in the process where the heat pipes
5 cause the heat to be transferred from the heat source contact
portion 7 to the radiating fins 3, the heat transfer rate
deteriorates. This is due to the fact that the heat source contact
portion 7 and the radiating fins 3, which are thermally connected
to each other by the heat pipes 5, are relatively far from each
other. In addition, since the heat source contact portion 7, the
heat pipes 5, and the radiating fins 3 are not integrated but are
separated from one other and they are only thermally in contact
with one other, there is the disadvantage that a large space for
installing the heat radiating apparatus is required.
SUMMARY OF THE INVENTION
[0010] An object of the invention is to solve at least the above
problems and/or disadvantages and to provide at least the
advantages described hereinafter.
[0011] In order to achieve at least the above objects, in whole or
in part, and in accordance with the purposes of the invention, as
embodied and broadly described herein, there is provided a heat
radiating apparatus in accordance with an embodiment of the
invention that includes at least two radiating portions positioned
adjacent to one another, each of the radiating portions comprising
a plurality of radiating fins, at least one heat pipe thermally
connecting the radiating portions to each other, and a fan unit
provided at a position corresponding to a side surface of the
radiating portions and configured to generate an airflow between
the radiating fins of the respective radiating portions.
[0012] To further achieve at least the above objects, in whole or
in part, and in accordance with the purposes of the invention, as
embodied and broadly described herein, there is provided a heat
radiating apparatus in accordance with an embodiment of the
invention that includes a first radiating portion comprising a heat
source and radiating fins provided on the base plate to radiate
heat, at least one heat pipe having one end thermally connected to
the base plate and configured to transfer heat away from the first
radiating portion, a second radiating portion thermally connected
to the other end of the at least one heat pipe and configured to
transfer heat away from the second radiating portion, the second
radiating portion comprising radiating fins configured to radiate
heat, and a fan unit installed between the first and second
radiating portions and configured to cause the ambient air to pass
through the first and second radiating portions and be discharged
outside thereof
[0013] Additional advantages, objects, and features of the
invention will be set forth in part in the description which
follows and in part will become apparent to those having ordinary
skill in the art upon examination of the following or may be
learned from practice of the invention. The objects and advantages
of the invention may be realized and attained as particularly
pointed out in the appended claims.
BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The invention will be described in detail with reference to
the following drawings in which like reference numerals refer to
like elements wherein:
[0015] FIG. 1 is a schematic perspective view of a related art heat
radiating apparatus;
[0016] FIG. 2 is a schematic perspective view of a heat radiating
apparatus according to an embodiment of the invention;
[0017] FIG. 3 is a schematic exploded perspective view of a portion
of the heat radiating apparatus of FIG. 2;
[0018] FIG. 4 is a schematic sectional view of a portion of the
heat radiating apparatus of FIG. 2;
[0019] FIG. 5 is a schematic view illustrating operation of an
embodiment of the invention;
[0020] FIG. 6 is a schematic exploded perspective view of a heat
radiating apparatus according to another embodiment of the
invention;
[0021] FIG. 7 is a schematic perspective view of the heat radiating
apparatus of FIG. 6;
[0022] FIG. 8 is a schematic sectional top view of a portion of a
second radiating portion of the heat radiating apparatus of FIG.
6;
[0023] FIG. 9 is a schematic side view showing an operating state
where airflow is generated by a fan unit in the heat radiating
apparatus of FIG. 6; and
[0024] FIG. 10 is a graph illustrating effects of embodiments of
the invention in comparison to related art.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
[0025] Now, a heat radiating apparatus in accordance with
embodiments will be described in detail with reference to the
drawings, in which like reference numerals have been used to
designate like elements.
[0026] FIG. 2 is a schematic perspective view of a heat radiating
apparatus according to an embodiment of the invention. FIG. 3 is a
schematic exploded perspective view of a portion of the heat
radiating apparatus of FIG. 2. FIG. 4 is a schematic sectional view
of a portion of the heat radiating apparatus of FIG. 2.
[0027] Referring to FIGS. 2-4, a first radiating portion 20 is
provided. The first radiating portion 20 may be made of a material
with a superior heat transfer rate, such as copper or aluminum. The
first radiating portion 20 may comprise a base plate 22 with a
predetermined thickness and area, and a plurality of radiating fins
24 may be formed on the base plate 22. The radiating fins 24 may be
formed with gaps therebetween, and each radiating fin 24 may be in
the form of a thin plate with a predetermined area and thickness.
That is, the radiating fins 24 may protrude from the base plate 22
at predetermined intervals. However, the radiating fins 24 are not
necessarily in the shape of a thin plate; other shapes may also be
appropriate.
[0028] A plurality of pipe holes 26 may be bored through the base
plate 22 of the first radiating portion 20 in one direction. The
pipe holes 26 may be formed extending therethrough, from one side
surface to the other side surface of the base plate 22. The pipe
holes 26 are not necessarily bored through the base plate 22.
Alternatively, they may be bored directly through the radiating
fins 24.
[0029] One end of each of the heat pipes 30 may penetrate each of
the pipe holes 26, respectively. The heat pipes 30 serve to
transfer the heat from one end to the other end thereof, while
working fluid in the heat pipes 30 is repeatedly subject to the
phase change processes of evaporation and liquefaction. One end of
each of the heat pipes 30 may be thermally connected to the base
plate 22 of the first radiating portion 20, while the other end
thereof may be thermally connected to a base plate 42 of a second
radiating portion 40, which will be described below.
[0030] As set forth above, the pipe holes 26 may be bored through
the radiating fins 24. In such a case, the heat pipes 26 would
penetrate the pipe holes 26 provided in the radiating fins 24 and
thus extend therethrough. Alternatively, the heat pipes could be
positioned adjacent to the heat radiating fins 24.
[0031] Each heat pipe 30 may be bent to form a `U` shape. The
straight portions of each heat pipe 30 may be inserted into the
pipe holes 26 and 46 of the first and second radiating portions 20
and 40, respectively, while the bent portion may protrude
outwardly, as shown in FIG. 2. Thus, the heat pipes 30 are not
simply inserted into the pipe holes 24 and 46, but the heat pipe 30
and the base plate 22 are connected to each other by, for example,
welding in order to minimize contact thermal resistance.
[0032] The second radiating portion 40 may then be, for example,
laminated on the first radiating portion 20. The first and second
radiating portions 40 may be manufactured in the same
configuration. That is, a plurality of plate-shaped radiating fins
44 may be formed on the base plate 42 with a predetermined area and
thickness and at certain intervals. The pipe holes 46 may then be
transversely bored through the base plate 42.
[0033] Alternatively, the first and second radiating portions 20
and 40 may be fastened to each other by, for example, welding. That
is, upper ends of the radiating fins 24 of the first radiating
portion 20 and a lower surface of the base plate 42 of the second
radiating portion 40 may be fastened to each other, for example, by
welding.
[0034] A fan unit 50 for generating airflow that passes between the
radiating fins 24 and 44 of the first and second radiating portions
20 and 40 may be attached to the radiating portions 20 and 40. In
the embodiment of FIG. 2, the fan unit 50 is attached to a side
surface of the radiating portions 20 and 40. The fan unit 50 is
provided with a fan driven by a motor which causes ambient air to
pass between the radiating fins 24 and 44. The fan unit 50 may also
be installed to be at a position opposite to that shown in FIG. 2.
In such a case, the airflow generated by the fan unit 50 can pass
between the radiating fins 24 and 44 of the radiating portions 20
and 40.
[0035] In addition, the fan unit 50 may be seated on a portion
corresponding to distal ends of the radiating fins 44 of the second
radiating portion 40 (that is, an upper face of the second
radiating portion 40 with respect to FIG. 2). In such a case, the
airflow generated by the fan unit 50 is directed from the distal
ends of the radiating fins 44 toward the base plate 42 of the
second radiating portion 40, strikes against the base plate 42, and
then, is discharged to both ends of the second radiating portion
40.
[0036] Referring to FIGS. 6 to 8, another embodiment of the
invention will be described. Referring to FIGS. 6-8, a first
radiating portion 120 may be thermally, directly connected to a
heat source, such as a central processing unit (CPU). The first
radiating portion 120 may be made of a metal with a superior heat
transfer rate, such as copper or aluminum. The first radiating
portion 120 may be provided with a base plate 122 which is in
contact with a heat source and takes the heat. The base plate 122
may be shaped in the form a substantially flat hexahedron.
[0037] A plurality of radiating fins 124 may be provided on a
surface of the base plate 122, that is, a surface opposite to that
in contact with the heat source. The plurality of the radiating
fins 124, each of which may be in the form of a substantially
quadrangular plate, may be provided at regular intervals. The heat
transferred from the heat source through the base plate 122 may be
transferred to airflow generated by a fan unit 150, which will be
described below, from the radiating fins 124. The radiating fins
124 may be formed integrally with the base plate 122.
[0038] Heat pipes 130 may be installed so as to penetrate the base
plate 122 of the first radiating portion 120. The heat pipes 130
serve to transfer the heat from one end to the other end thereof,
while working fluid in the heat pipes 130 may be repeatedly subject
to the processes of evaporation and liquefaction. One end of the
heat pipes 130 may be thermally connected to the base plate 122 of
the first radiating portion 120, while the other end thereof may be
thermally connected to a second radiating portion 140, which will
be described below. Each heat pipe 130 may be bent in the form of a
`U`. One end of each heat pipe 130 may penetrate the base plate 122
of the first radiating portion 120 via penetrating holes 126, while
the other end thereof may penetrate the radiating fins 142 of the
second radiating portion 140.
[0039] The second radiating portion 140 may be installed above an
upper portion of the first radiating portion 120 while the fan unit
150, which will be described below, is interposed therebetween. The
second radiating portion 140 is also a portion where the heat
generated from the heat source is radiated. The second radiating
portion 140 may be formed by connecting a plurality of the
radiating fins 142. As shown in the schematic sectional view of
FIG. 8, the second radiating portion 140 may be formed by, for
example, laminating a plurality of the radiating fins 142 together,
the cross section of each of which may be formed in a "[" shape,
with predetermined gaps formed therebetween. The structure of the
second radiating portion 140 is not limited to that shown in FIG.
8; other configurations may also be appropriate. The second
radiating portion 140 may be installed so that the respective
radiating fins 142 are directed in the same direction as the
radiating fins 124 formed on the first radiating portion 120. The
radiating fins 142 may be made of a metal with a superior heat
transfer rate, such as copper or aluminum.
[0040] The fan unit 150 may be provided between the first and
second radiating portions 120 and 140. The fan unit 150 may
generate the airflow for the heat transfer in the radiating fins
124 and 144. The fan unit 150 may generate the airflow so that the
airflow passes between the radiating fins 124 and 144 and directly
strikes against the base plate 122. The fan unit 150 may be
provided with a fan, as well as a motor for driving the fan. Both
opposite faces of the fan unit 150 may be fastened to the first and
second radiating portions 120 and 140, so that the first and second
radiating portions 120 and 140 are integrally coupled
therewith.
[0041] Hereinafter, operation of a heat radiating apparatus
according to embodiments of the invention so constructed will be
described in detail.
[0042] First, referring, for example, to FIG. 5, operation with
respect to one embodiment of the invention will be described. The
first and second radiating portions 20 and 40 are formed by
integrally forming the base plates 22 and 42 and the radiating fins
24 and 44, respectively, and are laminated in two layers and
fastened to each other by, for example, welding. Then, the base
plates 22 and 42 are thermally connected to each other by inserting
the heat pipes 30 into the pipe holes 26 and 46 formed in the base
plates 22 and 42. Then, the heat pipes 30 and the base plates 22
and 42 are fastened by, for example, welding, so that contact
thermal resistance is minimized. Next, the heat radiating apparatus
is completed by mounting the fan unit 50 on a side surface of the
radiating portions 20 and 40.
[0043] The heat radiating apparatus so constructed is installed so
that a bottom surface of the base plate 22 of the first radiating
portion 20 is in contact with a heat source. For example, the base
plate 22 of the first radiating portion 20 may be installed to be
in contact with or adjacent to a CPU of a computer in order to
radiate the heat generated by the CPU.
[0044] In a state where the heat radiating apparatus according to
embodiments of the invention is installed as above, heat generated
from the heat source, for example, the CPU, is transferred to the
base plate 22 of the first radiating portion 20. Some of the heat
transferred to the base plate 22 of the first radiating portion 20
is transferred to the heat pipes 30, and the other is transferred
to the radiating fins 24.
[0045] The heat transferred from the base plate 22 of the first
radiating portion 20 to the heat pipes 30 is transferred to the
base plate 42 of the second radiating portion 40. Then, the heat is
conducted from the base plate 42 of the second radiating portion 40
to the radiating fins 44. The airflow generated by the fan unit 50
takes the heat while passing between the radiating fins 24 and 44.
That is, the airflow takes the heat and discharges the heat to
outside the heat radiating apparatus while passing between the
radiating fins 24 and 44 of the respective first and second
radiating portions 20 and 40. If only the airflow that passes
between the radiating fins 44 of the second radiating portion 40 is
generated since the fan unit 50 is seated on the upper face of the
second radiating portion 40, the heat transferred to the radiating
fins 24 of the first radiating portion 20 is radiated by heat
transfer with the ambient air flowing by natural convection.
Further, the heat transferred to the radiating fins 44 of the
second radiating portion 40 is transferred to the airflow generated
by the fan unit 50 and is then discharged.
[0046] Next, referring to FIG. 9, operation of the embodiment of
FIG. 7 will be described below. With this embodiment, the base
plate 122 of the first radiating portion 120 is in direct contact
with a heat source 160. Thus, the heat generated from the heat
source 160 is transferred to the base plate 122.
[0047] Some of the heat transferred to the base plate 122 is
transferred to the radiating fins 124 of the first radiating
portion 120, and the other is transferred to the radiating fins 142
of the second radiating portion 140 through the heat pipes 130. The
heat transferred to the respective radiating fins 124 and 142 is
transferred to the airflow generated by the fan unit 150, and then
is discharged to the outside.
[0048] That is, if the fan unit 150 operates, an airflow passing
between the first and second radiating portions 120 and 140 is
generated. First, the air passes through between the radiating fins
142 from an upper portion of the second radiating portion 140, and
is then sucked into the fan unit 150. Here, the heat transfer
occurs in the process where the air passes between the radiating
fins 142 of the second radiating portion 140. That is, heat
transfer from the radiating fins 142 to the air occurs.
[0049] Next, the air sucked into the fan unit 150 is delivered to
the first radiating portion 120. That is, the air is delivered to
the base plate 122 between the radiating fins 124 of the first
radiating portion 120. In such a process, the heat is transferred
from the radiating fins 124 to the air.
[0050] The air discharged from the fan unit 150 is discharged from
the distal ends of the radiating fins 124 of the first radiating
portion 120 toward the base plate 122. When the air strikes against
the base plate 122 with a predetermined pressure, the air directly
takes the heat generated from the heat source and discharges the
heat. The air flowing into the first radiating portion 120 by the
fan unit 150 is delivered from the distal ends of the radiating
fins 124 to the base plate 122, strikes against the base plate 122,
and is then discharged through both side ends of the radiating fins
124, as shown by arrow in FIG. 9.
[0051] FIG. 10 shows experimental results obtained using
embodiments discussed above. Here, Cases 1, 2, and 3 show the
results when heat radiation occurs using the embodiments of the
invention, the related art shown in FIG. 1, and a fan and a
radiating portion in direct contact with a heat source,
respectively.
[0052] Temperature distribution at every portion of the respective
heat radiating apparatus is represented in FIG. 10. An 80W heat
source 160 is used and an environmental temperature is 35.degree.
C. As a result of the tests under these conditions, a surface of
the heat source 160 when using Cases 1, 2, and 3 measures
.about.53.4.degree. C., .about.69.1.degree. C., and
.about.58.degree. C., respectively. As seen here, when a heat
radiating apparatus according to embodiments of the invention is
used, the temperature of the heat source 160 is lowest.
[0053] Although the radiating portions may be provided in two
layers in the embodiments shown in the accompanying drawings, a
plurality of radiating portions may be provided. Further, the base
plates of the adjacent radiating portions may be thermally
connected to each other using the heat pipes.
[0054] At least the following advantages are provided by
embodiments of the invention.
[0055] A heat radiating apparatus according to embodiments of the
invention forcibly radiates heat generated from a heat source, for
example, of electronic equipment. The heat radiating apparatus
according to embodiments of the invention provides a superior heat
transfer rate in comparison to related art devices. Additionally,
the heat radiating apparatus according to embodiments of the
invention requires a minimized installation space. In addition,
since the space for installing the heat radiating apparatus is
minimized, it is possible to lighten, slim, simplify and compact
the electronic equipment in which the heat radiating apparatus is
used.
[0056] Further, since the structure for thermally connecting the
heat pipes and the radiating portions is relatively simple, it is
easy to manufacture the heat radiating apparatus, thus decreasing
the manufacturing cost. Further, since in certain embodiments the
radiating portions may be laminated in multiple layers and the base
plates of the respective radiating portions may be thermally
connected to each other through the heat pipes, the heat is
radiated at the radiating fins provided on the respective radiating
portions. Thus, there is the advantage that the radiation
performance increases.
[0057] Furthermore, in certain embodiments the components of the
heat radiating apparatus may be laminated or coupled to each other
with isolation. Thus, since the space occupied by the heat
radiating apparatus is minimized, it is possible to lighten, slim,
simplify, and compact the electronic equipment in which the heat
radiating apparatus is used.
[0058] The foregoing embodiments and advantages are merely
exemplary and are not to be construed as limiting the invention.
The present teaching can be readily applied to other types of
apparatuses. The description of the invention is intended to be
illustrative, and not to limit the scope of the claims. Many
alternatives, modifications, and variations will be apparent to
those skilled in the art. In the claims, means-plus-function
clauses are intended to cover the structures described herein as
performing the recited function and not only structural equivalents
but also equivalent structures.
* * * * *