U.S. patent application number 12/202723 was filed with the patent office on 2010-03-04 for process and assembly for flush connecting evaporator sections of juxtaposed heat pipes to a fixing base.
Invention is credited to Chih-Hung Cheng, Ken Hsu, Chen-Hsiang Lin, Kuo-Len LIN, Hwai-Ming Wang.
Application Number | 20100051236 12/202723 |
Document ID | / |
Family ID | 41723596 |
Filed Date | 2010-03-04 |
United States Patent
Application |
20100051236 |
Kind Code |
A1 |
LIN; Kuo-Len ; et
al. |
March 4, 2010 |
PROCESS AND ASSEMBLY FOR FLUSH CONNECTING EVAPORATOR SECTIONS OF
JUXTAPOSED HEAT PIPES TO A FIXING BASE
Abstract
A process for flush connecting evaporator sections of juxtaposed
heat pipes to a fixing base and forming a plane includes the steps
of: providing a fixing base with its bottom surface having an
accommodating trough; providing at least two heat pipes each having
an evaporator section and a condenser section; disposing the
evaporator sections of the heat pipes in the accommodating trough;
and machining the evaporator sections of the juxtaposed heat pipes,
thereby forming a plane on the evaporator sections of the heat
pipe. Via the above process, the evaporator sections of the heat
pipes can be juxtaposed in and flush connected to the fixing base,
thereby increasing the contact area between the evaporator sections
of the heat pipes and a heat-generating element. It further
provides an assembly for flush connecting evaporator sections of
juxtaposed heat pipes to a fixing base and forming a plane.
Inventors: |
LIN; Kuo-Len; (Wugu
Township, TW) ; Lin; Chen-Hsiang; (Wugu Towship,
TW) ; Wang; Hwai-Ming; (Wugu Township, TW) ;
Hsu; Ken; (Wugu Township, TW) ; Cheng; Chih-Hung;
(Wugu Township, TW) |
Correspondence
Address: |
HDLS Patent & Trademark Services
P.O. BOX 220746
CHANTILLY
VA
20153-0746
US
|
Family ID: |
41723596 |
Appl. No.: |
12/202723 |
Filed: |
September 2, 2008 |
Current U.S.
Class: |
165/104.21 ;
29/890.032 |
Current CPC
Class: |
B21D 53/06 20130101;
F28D 15/0275 20130101; Y10T 29/49353 20150115 |
Class at
Publication: |
165/104.21 ;
29/890.032 |
International
Class: |
F28D 5/00 20060101
F28D005/00; B21D 53/06 20060101 B21D053/06 |
Claims
1. A process for flush connecting evaporator sections (21) of
juxtaposed heat pipes (20) to a fixing base (10), comprising the
steps of: a) providing a fixing base (10) with a bottom surface
(11) thereof having an accommodating trough (12); b) providing at
least two heat pipes (20) each having an evaporator section (21)
and a condenser section (22); c) disposing the evaporator sections
(21) of the heat pipes (20) in the accommodating trough (12); and
d) machining the evaporator sections (21) of the juxtaposed heat
pipes (20), thereby forming a plane (200) on the evaporator
sections (21) of the heat pipe (20).
2. The process for flush connecting evaporator sections (21) of
juxtaposed heat pipes (20) to a fixing base (10) according to claim
1, wherein the step (b) is performed by providing at least three
heat pipes (20).
3. The process for flush connecting evaporator sections (21) of
juxtaposed heat pipes (20) to a fixing base (10) according to claim
2, wherein the step (c) is performed by first disposing the
evaporator sections (21) of two of the heat pipes (20) in the
accommodating trough (12), and then pressing the evaporator
sections (21) of at least one heat pipe (20) in the accommodating
trough (12).
4. The process for flush connecting evaporator sections (21) of
juxtaposed heat pipes (20) to a fixing base (10) according to claim
1, wherein the step (c) is performed by first disposing the
evaporator section (21) of one of the heat pipes (20) in the
accommodating trough (12), and then pressing the evaporator
sections (21) of at least one heat pipe (20) in the accommodating
trough (12).
5. The process for flush connecting evaporator sections (21) of
juxtaposed heat pipes (20) to a fixing base (10) according to claim
1, wherein the step (c) is performed by first juxtaposing the
evaporator sections (21) of the heat pipes (20) on the
accommodating trough (12), and then pressing the evaporator
sections (21) of the juxtaposed heat pipes (20) in the
accommodating trough (12).
6. The process for flush connecting evaporator sections (21) of
juxtaposed heat pipes (20) to a fixing base (10) according to claim
1, wherein the machining step is performed by rolling, pressing or
die-pressing.
7. The process for flush connecting evaporator sections (21) of
juxtaposed heat pipes (20) to a fixing base (10) according to claim
1, wherein the plane (200) formed on the evaporator sections (21)
of the heat pipes (20) is higher than the bottom surface (11) of
the fixing base (10).
8. The process for flush connecting evaporator sections (21) of
juxtaposed heat pipes (20) to a fixing base (10) according to claim
1, wherein the plane (200) formed on the evaporator sections (21)
of the heat pipes (20) is in flush with the bottom surface (11) of
the fixing base (10).
9. The process for flush connecting evaporator sections (21) of
juxtaposed heat pipes (20) to a fixing base (10) according to claim
1, wherein the evaporator sections (21) of the heat pipes (20) are
machined at least one time.
10. An assembly for flush connecting evaporator sections (21) of
juxtaposed heat pipes (20) to a fixing base (10), comprising: a
fixing base (10) with a bottom surface (11) thereof having an
accommodating trough (12); and at least two heat pipes (20) each
having an evaporator section (21) and a condenser section (22), the
evaporator sections (21) of the heat pipes (20) being juxtaposed in
the accommodating trough (12), wherein a surface of the evaporator
sections (21) of the juxtaposed heat pipes (20) is machined to form
a plane (200) that is not lower than the bottom surface (11) of the
fixing base (10).
11. The assembly for flush connecting evaporator sections (21) of
juxtaposed heat pipes (20) to a fixing base (10) according to claim
10, wherein the plane (200) formed on the evaporator sections (21)
of the heat pipes (20) is higher than the bottom surface (11) of
the fixing base (10).
12. The assembly for flush connecting evaporator sections (21) of
juxtaposed heat pipes (20) to a fixing base (10) according to claim
10, wherein the plane (200) formed on the evaporator sections (21)
of the heat pipes (20) is in flush with the bottom surface (11) of
the fixing base (10).
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a heat-dissipating device,
and in particular to a heat-dissipating device having a plurality
of heat pipes and a process for making the same.
[0003] 2. Description of Prior Art
[0004] Since heat pipes have many advantageous features such as
large heat-conducting capacity, high heat-transferring rate, light
weight, simple structure, versatility, capability of transferring
large amount of heat without consuming any electricity, low price
etc., they are widely used in dissipating the heat generated by
electronic elements. Via the heat pipes, the heat generated by
electronic heat-generating elements can be dissipated quickly,
thereby overcoming the heat accumulation occurring in the
electronic heat-generating elements at current stage.
[0005] Please refer to FIG. 1. When the heat pipe is used in a
heat-dissipating device of an electronic product, in order to
transfer and dissipate the heat generated by the heat-generating
elements more quickly, a plurality of heat pipes 20a is disposed on
a heat-conducting base 10a to perform the heat dissipation. Thus, a
plurality through slots 101a is provided at intervals on the
heat-conducting base 10a, so that the evaporator sections 201a of
the heat pipes 20a can be disposed in the through slots 101a
respectively. Then, the heat-conducting base 10a with the
evaporators 201a of the heat pipes 20a being disposed therein is
adhered to a heat-generating element (not shown), so that the
heat-conducting base 10a and the heat-generating element can be
thermally connected with each other. Condenser sections 202a on the
other side of the heat pipes 20a are provided with a plurality of
heat-dissipating fins (not shown). With the large heat-conducting
capacity of the heat pipe 20a, the heat generated by the
heat-generating element can be transferred to each heat-dissipating
fin via the heat pipes 20a, thereby dissipating the heat of the
heat-generating element continuously and lowering the temperature
thereof. Furthermore, with an associated heat-dissipating fan, the
heat accumulated in the respective heat-dissipating fins can be
dissipated quickly, thereby achieving a good heat-dissipating
effect.
[0006] In the above assembly, a separating plate 102a has to be
formed between each through slot 101a on the heat-conducting base
10a, so that the heat pipes 20a can be arranged on the
heat-conducting base 10a at intervals. Although the separating
plates 102a can allow the evaporator sections of the respective
heat pipes 20a to be received in the through slots 101a, these
separating plates 102a only make the evaporator sections 201a of
the heat pipes 20a and the heat-generating element to be brought
into a line contact but not a surface contact when the evaporator
sections 201a of the heat pipes 20a are adhered to the
heat-generating element. As a result, the contacting area between
the evaporator sections 201a of the heat pipes 20a and the
heat-generating element is reduced, and in turn, the
heat-conducting effect of the heat pipes 20a on the heat-generating
element is affected. Thus, the heat generated by the
heat-generating element cannot be dissipated immediately.
[0007] Therefore, it is an important issue for the present Inventor
to overcome the above problems.
SUMMARY OF THE INVENTION
[0008] The present invention is to provide a process and an
assembly for flush connecting evaporator sections of juxtaposed
heat pipes to a fixing base, whereby the contacting area between
the evaporator sections of the heat pipes and a heat-generating
element can be increased so as to dissipate the heat of the
heat-generating element quickly and improve the heat-conducting
efficiency.
[0009] The present invention is to provide a process and an
assembly for flush connecting evaporator sections of juxtaposed
heat pipes to a fixing base. The process includes the steps of: a)
providing a fixing base with its bottom surface having an
accommodating trough; b) providing at least two heat pipes each
having an evaporator section and a condenser section; c) disposing
the evaporator sections of the heat pipes in the accommodating
trough; and d) machining the evaporator sections of the juxtaposed
heat pipes, thereby forming a plane on the evaporator sections of
the heat pipe.
[0010] The present invention is to provide a process and an
assembly for flush connecting evaporator sections of juxtaposed
heat pipes to a fixing base. With the evaporator sections of the
heat pipes being formed into a plane that is higher than or in
flush with the bottom surface of the fixing base, the evaporator
sections of the heat pipes can be brought into a surface contact
with the heat-generating element, thereby dissipating the heat of
the heat-generating element quickly.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] FIG. 1 is a schematic view showing the combination of heat
pipes and a heat-conducting base in prior art;
[0012] FIG. 2 is a perspective view showing the external appearance
of the fixing base of the present invention;
[0013] FIG. 3 is a cross-sectional view of the present invention
showing the evaporator sections of two of the heat pipes being
pressed in an accommodating trough;
[0014] FIG. 4 is a cross-sectional view of the present invention
showing the evaporator sections of at least two heat pipes being
pressed into an accommodating trough;
[0015] FIG. 5 is a schematic view showing a step of machining the
evaporator sections of juxtaposed heat pipes by a die according to
the present invention;
[0016] FIG. 6 is a perspective view showing the external appearance
of the present invention;
[0017] FIG. 7 is an assembled cross-sectional view showing the
plane formed on the evaporator sections of the heat pipes of the
present invention being in flush with the bottom surface of the
fixing base;
[0018] FIG. 8 is an assembled cross-sectional view showing the
plane formed on the evaporator sections of the heat pipes of the
present invention being higher than the bottom surface of the
fixing base;
[0019] FIG. 9 is a schematic view showing the operating state of
the present invention; and
[0020] FIG. 10 is a flow chart showing a process of an embodiment
of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
[0021] The detailed description and technical contents of the
present invention will be explained with reference to the
accompanying drawings. However, the drawings are illustrative only
but not used to limit the present invention.
[0022] Please refer to FIGS. 2 to 6. The present invention provides
a process for flush connecting evaporator sections of juxtaposed
heat pipes to a fixing base. First, a fixing base 10 is provided. A
bottom surface 11 of the fixing base 10 is provided with an
accommodating trough 12. Furthermore, at least two heat pipes 20
are provided, in which a wick structure and a working fluid are
filled. In the present embodiment, there are three heat pipes 20.
Next, evaporator sections 21 of the heat pipes 20 are disposed in
the accommodating trough 12. The evaporator section 21 of one of
the heat pipes 20 is first disposed in the accommodating trough 12,
and then the evaporator section 21 of at least one heat pipe 20 is
pressed into the accommodating trough 12. In the present
embodiment, the evaporator sections 21 of two of the heat pipes 20
are disposed in the accommodating trough 12, and then the
evaporator section 21 of at least one heat pipe 20 is pressed into
the accommodating trough 12. In practice, the evaporator sections
21 of the heat pipes 20 are juxtaposed on the accommodating trough
12, and then the evaporator sections 21 of the juxtaposed heat
pipes 20 are pressed into the accommodating trough 12. Finally, via
a machining step such as rolling, pressing or die-pressing, a
pressing die 30 is used in the present embodiment to roll the
evaporator sections 21 of the juxtaposed heat pipes 20 at least one
time, so that a plane 200 can be formed on the evaporator sections
21 of the heat pipes 20. Thus, the evaporator sections 21 of the
juxtaposed heat pipes 20 can be flush connected into the
accommodating trough 12 of the fixing base 10.
[0023] Please refer to FIG. 7, which is an assembled
cross-sectional view showing the assembly for flush connecting the
evaporator sections of the juxtaposed heat pipes to the fixing base
according to the present invention. The bottom surface 11 of the
fixing base 10 has an accommodating trough 12. The evaporator
sections 21 of at least two heat pipes 20 are juxtaposed in the
accommodating trough 12. In the present embodiment, three heat
pipes 20 are provided. The evaporator sections 21 of the juxtaposed
heat pipes 20 are machined to form a plane 200. The plane 200
formed on the evaporator sections 21 of the heat pipes 20 is in
flush with the bottom surface 11 of the fixing base 10. Please
refer to FIG. 8, which is different from FIG. 7 in that: after
machining, the plane 200 formed on the evaporator sections 21 of
the heat pipes 20 is higher than the bottom surface 11 of the
fixing base 10.
[0024] Please refer FIG. 9, which is a schematic view showing an
operating state of the present invention. The evaporator sections
21 of the heat pipes 20 are machined to form a plane 200, and these
heat pipes are juxtaposed flush in the accommodating trough 12 of
the fixing base 10. The condenser sections 22 of the heat pipes 20
are connected with a heat-dissipating fins assembly 40. In use, the
plane 200 is adhered to the surface of a heat-generating element
50. In the present embodiment, the heat-generating element 50 is a
CPU disposed on a circuit board. Thus, the heat generated by the
heat-generating element 50 can be conducted to the evaporator
sections 21 of the heat pipes 20. Then, the heat is transferred
from the evaporator sections 21 of the heat pipes 20 to their
condenser sections 22. Finally, the heat is transferred from the
condenser sections 22 of the heat pipes 20 to the heat-dissipating
fins assembly 40 having a larger heat-dissipating area. In this
way, the heat generated by the heat-generating element 50 can be
transferred to the heat-dissipating fins assembly 40 via the heat
pipes 20, thereby dissipating the heat gradually.
[0025] Please refer to FIG. 10, which is a flow chart showing the
process for flush connecting evaporator sections of juxtaposed heat
pipes to a fixing base according to the present invention (also
refer to FIGS. 2 to 9). The process includes the steps as follows.
First, in the step 61, a fixing base 10 is provided with its bottom
surface 11 having an accommodating trough 12. In the step 62, at
least two heat pipes 20 each having an evaporator section 21 and a
condenser section 22 are provided. Then, in the step 63, the
evaporator sections 21 of the heat pipes 20 are disposed in the
accommodating trough 12. Finally, in the step 64, via the machining
of a rolling die 30, the evaporator sections 21 of the heat pipes
20 are rolled at least one time, thereby forming a plane 200 on the
evaporator sections 21 of the heat pipes 20. The plane 200 is
higher than or in flush with the bottom surface 11 of the fixing
base 10. The step of disposing the evaporator sections 21 of the
heat pipes 20 in the accommodating trough 12 can be performed in
such a manner that the evaporator section 21 of one of the heat
pipes 20 is first disposed in the accommodating trough 12, and then
the evaporator sections 21 of at least one heat pipe 20 are pressed
into the accommodating trough 12. In the present embodiment, the
evaporator sections 21 of two of the heat pipes 20 are disposed in
the accommodating trough 12, and then the evaporator section 21 of
at least one heat pipes 20 is pressed into the accommodating trough
12. Alternatively, the evaporator sections 21 of the heat pipes 20
are juxtaposed on the accommodating trough 12, and then the
evaporator sections 21 of the juxtaposed heat pipes 20 are pressed
into the accommodating trough 12.
[0026] Therefore, according to the present invention, the
evaporator sections 21 of at least two heat pipes 20 can be
disposed simultaneously in the accommodating trough 12 of the
fixing base 10, so that the evaporator sections 21 of the heat
pipes 20 and the heat-generating element 50 can be brought into a
surface contact, thereby increasing the contact area between the
evaporator sections 21 of the heat pipes 20 and the heat-generating
element 50. In this way, the heat of the heat-generating element 50
can be dissipated quickly and the heat-conducting efficiency can be
improved.
[0027] 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.
* * * * *