U.S. patent application number 12/325533 was filed with the patent office on 2010-06-03 for vapor chamber and cooling device having the same.
Invention is credited to Chieh-Ping Chen, George Anthony. Meyer, IV, Chien-Hung Sun.
Application Number | 20100132922 12/325533 |
Document ID | / |
Family ID | 42221733 |
Filed Date | 2010-06-03 |
United States Patent
Application |
20100132922 |
Kind Code |
A1 |
Meyer, IV; George Anthony. ;
et al. |
June 3, 2010 |
VAPOR CHAMBER AND COOLING DEVICE HAVING THE SAME
Abstract
A vapor chamber is provided to include shell, capillary tissue,
working fluid, heat-absorbing section and heat-releasing section. A
hollow chamber is formed in the shell. The capillary tissue is
arranged and accommodated in the hollow chamber. The working fluid
is injected into and filled in the hollow chamber. Two
corresponding surfaces of the shell at the heat-releasing section
are respectively a non-planar shape. Because the two corresponding
surfaces of the shell at the heat-releasing section are
respectively a non-planar shape, the structure strength of the
vapor chamber is higher and the anti-deforming ability is superior,
thereby the using life of the vapor chamber being prolonged. In
addition, the vapor chamber can be combined with cooling fins to
become a cooling device. Since the two corresponding surfaces of
the shell at the heat-releasing section are respectively designed
as a non-planar shape, the vapor chamber and the cooling fins have
larger contacting surfaces, making the heat-transferring
effectiveness thereby enhanced significantly.
Inventors: |
Meyer, IV; George Anthony.;
(San Jose, CA) ; Sun; Chien-Hung; (Zhongli City,
TW) ; Chen; Chieh-Ping; (Zhongli City, TW) |
Correspondence
Address: |
HDLS Patent & Trademark Services
P.O. BOX 220746
CHANTILLY
VA
20153-0746
US
|
Family ID: |
42221733 |
Appl. No.: |
12/325533 |
Filed: |
December 1, 2008 |
Current U.S.
Class: |
165/104.19 |
Current CPC
Class: |
F28F 1/06 20130101; F28D
15/0233 20130101; F28D 15/04 20130101; F28F 2225/04 20130101; F28F
1/006 20130101; F28F 1/32 20130101 |
Class at
Publication: |
165/104.19 |
International
Class: |
F28D 15/00 20060101
F28D015/00 |
Claims
1. A vapor chamber, including a shell, in which a hollow chamber is
formed; a capillary tissue, which is arranged and accommodated in
the hollow chamber; a working fluid, which is injected into and
filled in the hollow chamber; a heat-absorbing section, which is
formed at a partial area of the vapor chamber; and a heat-releasing
section, which is formed at another partial area of the vapor
chamber; characterized in that two corresponding surfaces of the
shell at the heat-releasing section are respectively shown as a
non-planar shape.
2. The vapor chamber according to claim 1, wherein the two
corresponding surfaces are respectively shown as an arch shape
projected outwardly.
3. The vapor chamber according to claim 1, wherein the two
corresponding surfaces are respectively shown as a corrugated
shape.
4. A vapor chamber, including a shell, in which a hollow chamber is
formed, and an external part of which includes a flat section and
an extension section connected to the flat section, the extension
section having a first surface and a second surface formed at a
corresponding side of the first surface, the first surface and the
second surface being respectively a non-planar shape; a capillary
tissue, which is arranged and accommodated in the hollow chamber;
and a working fluid, which is injected into and filled in the
hollow chamber.
5. The vapor chamber according to claim 4, wherein the first
surface and the second surface are respectively shown as an arch
shape projected outwardly.
6. The vapor chamber according to claim 4, wherein the first
surface and the second surface are respectively shown as a
corrugated shape.
7. A cooling device having vapor chamber, including a cooler,
including a plurality of cooling fins that are inter-spaced and
respectively arranged a through-hole by alignment to each other;
and a vapor chamber, including a shell, in which a hollow chamber
is formed; a capillary tissue, which is arranged and accommodated
in the hollow chamber; a working fluid, which is injected into and
filled in the hollow chamber; a heat-absorbing section, which is
formed at a partial area of the vapor chamber; and a heat-releasing
section, which is formed at another partial area of the vapor
chamber; characterized in that two corresponding surfaces of the
shell at the heat-releasing section are respectively shown as a
non-planar shape.
8. The cooling device having vapor chamber according to claim 7,
wherein the two corresponding surfaces are respectively shown as an
arch shape projected outwardly.
9. The cooling device having vapor chamber according to claim 7,
wherein the two corresponding surfaces are respectively shown as a
corrugated shape.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention in general relates to a vapor chamber,
and in particular, to a vapor chamber having non-planar surfaces
and a cooling device having the vapor chamber.
[0003] 2. Description of Prior Art
[0004] Vapor chambers and heat pipes, comprehensively applied as
the cooling devices in the information industry, are elements that
apply phase change of the working fluid to reach a fast heat
transfer. In particular, a vapor chamber can achieve a heat
transfer via surface contact.
[0005] As shown in FIG. 1, which is a perspective outer view of
vapor chamber according to the prior arts, this prior vapor chamber
has a shell 11a, a capillary tissue 12a and a working fluid 13a. In
this case, a hollow chamber 103a is formed in the shell 11a. The
capillary tissue 12a is arranged in the hollow chamber 103a. The
working fluid 13a is injected into and filled in the hollow chamber
103a. The vapor chamber 10a has a heat-absorbing section 101a and a
heat-releasing section 102a, in which the heat-absorbing section
101a is formed at a partial area of the vapor chamber 10a, while
the heat-releasing section 102a is formed at another partial area
of the vapor chamber 10a. Particularly, the surfaces of the
heat-absorbing section 101a and the heat-releasing section 102a are
respectively shown as a plane shape.
[0006] However, there are still some drawbacks for this kind of
prior vapor chamber in terms of practical usage. For example, the
heat-transferring ability will become superior if the thickness of
the shell 11a of the vapor chamber 10a becomes thinner, so the
current design of the thickness of the shell 11a has a trend of
thinness. However, when the vapor chamber 10a transfers heat, a
high pressure will be formed therein due to phase change, which
easily creates a deforming or collapsing phenomenon on the surfaces
of shell 11a. Since the surfaces of the heat-releasing section 102a
of commonly prior vapor chamber are shown as plane type, so its
structural strength is not strong enough to resist the deformation
caused by high inner pressure. Therefore, the surfaces of the
heat-releasing section 102a are easily collapsed or deformed,
making the vapor chamber 10a damaged.
[0007] Accordingly, aiming to solve aforementioned shortcomings,
after a substantially devoted study, in cooperation with the
application of relatively academic principles, the inventor has
finally proposed the present invention that is designed reasonably
to possess the capability to improve the prior arts
significantly.
SUMMARY OF THE INVENTION
[0008] The invention is mainly to provide a vapor chamber which has
a stronger structural strength and superior anti-deforming ability
by designing a non-planar shape for each two corresponding surfaces
of the shell at the heat-releasing section, such that the using
life of the vapor chamber is prolonged.
[0009] Secondly, the invention is to provide a vapor chamber which
has a stronger structural strength and superior anti-deforming
ability by designing a first surface and a second surface
respectively as a non-planar surface, such that the using life of
the vapor chamber is prolonged.
[0010] Therefore, a vapor chamber provided by the invention
includes a shell, a capillary tissue, a working fluid, a
heat-absorbing section and a heat-releasing section. According to
the invention, a hollow chamber is formed in the shell. The
capillary tissue is arranged and accommodated in the hollow
chamber. The working fluid is injected into and filled in the
hollow chamber. The heat-absorbing section is formed at a partial
area of the vapor chamber, while the heat-releasing section is
formed at another partial area of the vapor chamber. Two
corresponding surfaces of the shell at the heat-releasing section
are respectively shown as a non-planar shape.
[0011] Again, a vapor chamber provided by the invention includes a
shell, a capillary tissue and a working fluid. A hollow chamber is
formed in the shell, an external part of which includes a flat
section and an extension section connected the flat section. The
extension section has a first surface and a second surface formed
at a corresponding side of the first surface. The first surface and
the second surface are all non-planar surfaces. The capillary
tissue is arranged and accommodated in the hollow chamber. The
working fluid is injected into and filled in the hollow
chamber.
[0012] Furthermore, the invention is to provide a vapor chamber and
a cooling device having the vapor chamber and, since two
corresponding surfaces of the shell at the heat-releasing section
are respectively designed as a non-planar shape, both vapor chamber
and cooling fins have larger contact area, thus that the
heat-transferring effectiveness is enhanced significantly.
[0013] Finally, the invention is to provide a cooling device having
vapor chamber, including a cooler and a vapor chamber. The cooler
includes a plurality of cooling fins, which are interspaced to each
other. The vapor chamber includes a shell, a capillary tissue, a
working fluid, a heat-absorbing section and a heat-releasing
section. A hollow chamber is formed in the shell. The capillary
tissue is arranged and accommodated in the hollow chamber. The
working fluid is injected into and filled in the hollow chamber.
The heat-absorbing section is formed at a partial area of the vapor
chamber, while the heat-releasing section is formed at another
partial area of the vapor chamber and is arranged by passing
through the cooling fins. Two corresponding surfaces of the shell
at the heat-releasing section are respectively designed as a
non-planar shape.
BRIEF DESCRIPTION OF DRAWING
[0014] The features of the invention believed to be novel are set
forth with particularity in the appended claims. The invention
itself, however, may be best understood by reference to the
following detailed description of the invention, which describes a
number of exemplary embodiments of the invention, taken in
conjunction with the accompanying drawings, in which:
[0015] FIG. 1 is a perspective view of a prior vapor chamber;
[0016] FIG. 2 is a perspective view of a vapor chamber according to
the present invention;
[0017] FIG. 3 is a top sectional view of a vapor chamber according
to the present invention;
[0018] FIG. 4 is a perspective view of a cooler according to the
present invention;
[0019] FIG. 5 is a side sectional view of a cooler according to the
present invention during an operational status;
[0020] FIG. 6 is a top sectional view of a cooler according to the
present invention during an operational status;
[0021] FIG. 7 is a perspective view of another embodiment of the
vapor chamber of the invention;
[0022] FIG. 8 is a top sectional view of another embodiment of the
vapor chamber of the invention; and
[0023] FIG. 9 is a perspective view of a further embodiment of the
vapor chamber of the invention.
DETAILED DESCRIPTION OF THE INVENTION
[0024] In cooperation with attached drawings, the technical
contents and detailed description of the present invention are
described thereinafter according to a number of preferable
embodiments, not used to limit its executing scope. Any equivalent
variation and modification made according to appended claims is all
covered by the claims claimed by the present invention.
[0025] Please refer to FIG. 2 through FIG. 4, which respectively
show a perspective view, a top sectional view of a vapor chamber
and a perspective view of a cooling device according to the present
invention. The invention is to provide a vapor chamber and a
cooling device having the vapor chamber. The vapor chamber 10
includes a shell 11, a capillary tissue 12, a working fluid 13, a
heat-absorbing section and a heat-releasing section 102. According
to a preferable embodiment, a hollow chamber 103 is formed in the
shell 11. The capillary tissue 12 is arranged and accommodated in
the hollow chamber 103. The working fluid 13 is injected into and
filled in the hollow chamber 103.
[0026] The heat-absorbing section 101 is formed at a partial area
of the vapor chamber 10, while the heat-releasing section 102 is
formed at another partial area of the vapor chamber 10. In this
case, the heat-absorbing section 101 is a flat section, and the
heat-releasing section 102 is connected to the flat section via an
extension section. Two corresponding surfaces 1021 of the shell 11
at the heat-releasing section 102 are respectively designed as a
non-planar shape. In addition, the two corresponding surfaces 1021
are further distinguished into a first surface 1022 and a second
surface 1023. These two corresponding surfaces 1021 (i.e. the first
surface 1022 and the second surface 1023) are respectively
configured as an arch shape projected outwardly, but not limited to
this kind of shape only. Since the arch structure can convert
pressures imposed vertically on the surfaces into pressures in
alignment along the arch lines, the structural strength of this
kind of arch structure is stronger than that of common planar
structure, so is the anti-deforming ability.
[0027] In addition, a cooling device having vapor chamber 10
includes a vapor chamber 10 and a cooler 20. The cooler 20 includes
a plurality of cooling fins 21 that are inter-spaced to each other
by alignment. There are two through-holes 22 arranged at each
cooling fin 21, however, not limited to this kind of pattern only.
Again, the cooling fin 21 is configured a ring wall 211 around the
circumference of the through-holes 22 respectively. Two neighboring
cooling fins 21 are inter-abutted to each other via the ring wall
211. The heat-releasing section 102 is arranged by passing through
the cooling fins 21. The shape of the through-hole 22 corresponds
to that of these two corresponding surfaces 1021.
[0028] In this embodiment, the vapor chamber 10 is shown as a "U"
shape, however, not limited to this kind of pattern only. Since the
first surface 1022 and the second surface 1023 are respectively
shown as a non-planar shape (in this embodiment, being an arch
shape projected outwardly) so, when the heat-releasing section 102
passes through the cooling fins 21 and connects thereto, the
surface 1021 shown as an arch shape can contact the cooling fins 21
with larger area. In addition, the compatibility between the
heat-releasing section 102 and the cooling fins 21 is improved
without worrying the problem of machining flatness. In the
meantime, a better cooling effectiveness can also be achieved by
configuring the heat-releasing section 102 as a non-planar
shape.
[0029] Please refer to FIG. 5 and FIG. 6, respectively showing a
side sectional view and a top sectional view of a cooling device
according to the present invention during operational status. The
heat-absorbing section 101 is connected by adhesion onto a heating
element 41 on a circuit board 40. The waste heat generated from the
heating element 41 is transferred to the heat-absorbing section 13,
then to the heat-releasing section 102, and finally to the cooling
fins 21. It can be seen obviously from the FIG. 6 that, since the
surface 1021 (i.e. the first surface 1022 and the second surface
1023) is shown as an arch shape, the contacting area between the
heat-releasing section and the cooling fin 21 is larger, such that
a better effectiveness of heat transfer can be achieved.
[0030] Please refer to FIG. 7 and FIG. 8, respectively showing a
perspective view and a top sectional view of a vapor chamber
according to another embodiment of the present invention. In this
embodiment, the surface 1021 (i.e. the first surface 1022 and the
second surface 1023) is shown as a corrugated shape. There is also
a larger contacting area existing between the corrugated surface
1021 and the cooling fin 21 (please refer to FIG. 4), such that an
effectiveness same as that o f above embodiment can be achieved as
well.
[0031] Please refer to FIG. 9, showing a perspective view of a
vapor chamber according to a further embodiment of the present
invention. In FIG. 9, the vapor chamber 10 is shown as an "L"
shape. However, different shapes of vapor chamber 10 can be chosen
according to practically needed requirement, but the surface 1021
of the heat-releasing section has to be designed as a non-planar
shape.
[0032] According to the aforementioned structure, a vapor chamber
and a cooling device having the vapor chamber are thus
obtained.
[0033] Summarizing aforementioned description, the invention is an
indispensable product of novelty indeed, which may positively reach
the expected usage objective for solving the drawbacks of the prior
arts, and which extremely possesses the innovation and
progressiveness for completely fulfilling the applying merits of a
new type patent, according to which the invention is thereby
applied. Please examine the application carefully and grant it as a
formal patent for protecting the rights of the inventor.
[0034] However, the aforementioned description is only a number
preferable embodiments according to the present invention, not used
to limit the patent scope of the invention, so equivalently
structural variation made to the contents of the present invention,
for example, description and drawings, is all covered by the claims
claimed thereinafter.
* * * * *