U.S. patent application number 11/605784 was filed with the patent office on 2008-05-29 for liquid cooled heat dissipator.
Invention is credited to Po-Yung Tseng.
Application Number | 20080121384 11/605784 |
Document ID | / |
Family ID | 39462472 |
Filed Date | 2008-05-29 |
United States Patent
Application |
20080121384 |
Kind Code |
A1 |
Tseng; Po-Yung |
May 29, 2008 |
Liquid cooled heat dissipator
Abstract
A liquid cooled heat dissipator includes water channels, rows of
heat dissipating fins respectively received in a corresponding one
of the water channels and each heat dissipating fin having a ridge
and a trough, a first water tank mounting seat having first
openings defined to respectively communicate with the water
channels, a second water tank mounting seat opposite to the first
water tank mounting seat and having multiple second openings
respectively communicating with the water channels, a first water
tank in the first water tank mounting seat and a second water tank
mounted in the second water tank mounting seat for turning water
flow in the water channels.
Inventors: |
Tseng; Po-Yung; (Taichung
Hsien, TW) |
Correspondence
Address: |
Frenkel & Associates, P.C.
Suite 330, 3975 University Drive
Fairfax
VA
22030
US
|
Family ID: |
39462472 |
Appl. No.: |
11/605784 |
Filed: |
November 29, 2006 |
Current U.S.
Class: |
165/149 ;
165/133 |
Current CPC
Class: |
F28D 1/05375 20130101;
F28F 9/0226 20130101; F28F 9/001 20130101; F28F 9/0209
20130101 |
Class at
Publication: |
165/149 ;
165/133 |
International
Class: |
F28D 1/00 20060101
F28D001/00 |
Claims
1. A liquid cooled heat dissipator comprising: water channels
superposed on top of each other, the water channels being made of
bronze; rows of heat dissipating fins respectively received in a
corresponding one of the water channels and each heat dissipating
fin having a ridge and a trough; a tin alloy welding layer provided
between two opposed inner sides of the water channels to provide
secure engagement between the ridges and the inner sides of the
water channels; a first water tank mounting seat formed on a side
of the superposed water channels and having first openings defined
to respectively communicate with the water channels; a second water
tank mounting seat formed on a side of the superposed water
channels to be opposite to the first water tank mounting seat, the
second water tank mounting seat having multiple second openings
defined to respectively communicate with the water channels; a
first water tank mounted in the first water tank mounting seat, the
first water tank having an inlet for providing water to the water
channels and an outlet respectively communicating with an interior
of the first water tank; and a second water tank mounted in the
second water tank mounting seat for turning water flow in the water
channels.
2. The liquid cooled heat dissipator as claimed in claim 1, wherein
the tin alloy welding layer is composed of elongated strips
respectively connecting the ridges of the rows of the heat
dissipating fins to the inner sides of the water channels.
3. The liquid cooled heat dissipator as claimed in claim 1, wherein
each heat dissipating fin is provided with a layer of bronze plated
thereon.
4. The liquid cooled heat dissipator as claimed in claim 3, wherein
the first water tank is provided with an inflow chamber
communicating with bottom most two first openings of the first
water tank mounting seat and bottom most two water channels, an
outflow chamber communicating with top most two first openings of
the first water tank mounting seat and top most two water channels
and a mediate chamber communicating with remaining first openings
of the first water tank mounting seat and the water channels.
5. The liquid cooled heat dissipator as claimed in claim 1, wherein
the second water tank is provided with a bottom chamber
communicating with half of the second openings of the second water
tank mounting seat and a top chamber communicating with the other
half of the second openings of the second water tank mounting
seat.
6. The liquid cooled heat dissipator as claimed in claim 4, wherein
the second water tank is provided with a bottom chamber
communicating with half of the second openings of the second water
tank mounting seat and a top chamber communicating with the other
half of the second openings of the second water tank mounting
seat.
7. The liquid cooled heat dissipator as claimed in claim 1, wherein
two securing plates are respectively provided between the first
water tank mounting seat and the second water tank mounting seat
and on a top of top most water channel and on a bottom of bottom
most water channel.
8. The liquid cooled heat dissipator as claimed in claim 4, wherein
two securing plates are respectively provided between the first
water tank mounting seat and the second water tank mounting seat
and on a top of top most water channel and on a bottom of bottom
most water channel.
9. The liquid cooled heat dissipator as claimed in claim 6, wherein
two securing plates are respectively provided between the first
water tank mounting seat and the second water tank mounting seat
and on a top of top most water channel and on a bottom of bottom
most water channel.
10. The liquid cooled heat dissipator as claimed in claim 6,
wherein a pump is connected to the inlet and the pump is connected
to a heat absorption device via an inflow pipe connecting to the
first connector and a first universal joint, a transparent
reservoir is connected to the outlet via a connecting pipe
connecting to and communicating with the transparent reservoir and
a second connector connecting to the outlet, the transparent
reservoir is connected to the heat absorption device via an outflow
pipe connecting to and communicating with the transparent reservoir
and a second universal joint connected too the heat absorption
device.
11. The liquid cooled heat dissipator as claimed in claim 9,
wherein a pump is connected to the inlet and the pump is connected
to a heat absorption device via an inflow pipe connecting to the
first connector and a first universal joint connected to the heat
absorption device, a transparent reservoir is connected to the
outlet via a connecting pipe connecting to and communicating with
the transparent reservoir and a second connector connecting to the
outlet, the transparent reservoir is connected to the heat
absorption device via an outflow pipe connecting to and
communicating with the transparent reservoir and a second universal
joint connected to the heat absorption device.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a liquid cooled heat
dissipator, and more particularly to liquid cooled heat dissipator
having multiple aluminum fins and a tin alloy welding layer formed
inside the heat dissipator to enhance heat dissipating
efficiency.
[0003] 2. Description of the Prior Art
[0004] An air cooled heat dissipator mainly is using air as the
heat dissipating medium to dissipate heat absorbed by fins of the
heat dissipator. To enhance the heat dissipating efficiency,
aluminum is adopted to be the material for making the fins, which
is light weight and having a feature of fast heat dissipating
capability.
[0005] For a liquid cooled heat dissipator, it is noted that the
heat dissipating ability depends on the heat exchange rate between
the liquid and the fins. To increase the heat exchange rate, bronze
is normally the best choice to make the water channel and the fins
in the liquid cooled heat dissipator.
[0006] To further analyze the characteristics of bronze, it is
learned that although the metal, bronze, has great heat absorption
efficiency, it does not have high heat dissipating capability.
Eventually, the overall heat dissipating efficiency of the liquid
cooled heat dissipator is not as good as expected and can not be
improved.
[0007] To overcome the shortcomings, the present invention tends to
provide an improved liquid cooled heat dissipator to mitigate the
aforementioned problems.
SUMMARY OF THE INVENTION
[0008] The primary objective of the present invention is to provide
an improved liquid cooled heat dissipator having a fan to increase
the heat dissipating efficiency.
[0009] In order to accomplish the foregoing objective, the liquid
cooled heat dissipator of the present invention has multiple
channels, multiple rows of heat dissipating fins each received in a
corresponding one of the channels, multiple tin alloy welding layer
provided on two opposed inner side faces of each of the channels so
as to secure each row of heat dissipating fins inside the
corresponding channel and between a securing plate and an outer
side face of a top most channel and a bottom most channel such that
the overall heat exchange rate is increased.
[0010] Preferably, the tin alloy welding layer is attached to a
ridge of each heat dissipating fin.
[0011] Preferably, each heat dissipating fin has a layer of bronze
plated thereon.
[0012] Other objects, advantages and novel features of the
invention will become more apparent from the following detailed
description when taken in conjunction with the accompanying
drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] FIG. 1 is a perspective view of the liquid cooled heat
dissipator with the fan removed;
[0014] FIG. 2 is an exploded perspective view of the liquid cooled
heat dissipator in FIG. 1;
[0015] FIG. 3 is a side plan view of the liquid cooled heat
dissipator in FIG. 1;
[0016] FIG. 4 is a partially cross sectional view of the liquid
cooled heat dissipator in FIG. 1;
[0017] FIG. 5 is a partially exploded cross sectional view of a
second embodiment of the liquid cooled heat dissipator of the
present invention;
[0018] FIG. 6 is an exploded perspective view showing that the
liquid cooled heat dissipator is associated with a heat absorption
device;
[0019] FIG. 7 is a perspective view showing the combination of the
liquid cooled heat dissipator and the heat absorption device are
combined; and
[0020] FIG. 8 is a schematic perspective view showing the
application of the present invention, wherein a heat dissipating
fan is added.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0021] With reference to FIGS. 1, 2, 3 and 4, it is noted that the
liquid cooled heat dissipator in accordance with the present
invention includes eight water channels (10) superposed on top of
each other, two securing plates (20) respectively mounted on a top
face of a top most water channel (10) and a bottom face of a bottom
most water channel (10), multiple rows of heat dissipating fins
(30) respectively and securely received in a corresponding one of
the water channels (10), a layer of tin alloy welding layer (40)
provided on two opposed inner side faces of each water channel (10)
and between the securing plate (20) and the top most water channel
(10) and between the securing plate (20) and the bottom most water
channel (10), a first water tank mounting seat (50) formed on a
side of the combined water channels (10), a second water tank
mounting seat (60) formed on the other side of the combined water
channels (10) to be opposite to the first water tank mounting seat
(50), a first water tank (70) to be seated inside the first water
tank mounting seat (50) and a second water tank (80) to be seated
inside the second water tank mounting seat (60). A fan supporting
plate (90) is provided on a free side face of the securing plate
(20) for mounting a fan (not shown).
[0022] The eight water channels (10) are securely combined with
each other and each water channel (10) has a row of heat
dissipating fins (30) received therein. Each row of heat
dissipating fins (30) has multiple ridges (31) and troughs (32).
The layer of tin alloy welding layer (40) is provided on two
opposed inner side faces of each water channel (10) and between the
securing plate (20) and the top most water channel (10) and between
the securing plate (20) and the bottom most water channel (10). The
layer of tin alloy welding layer (40) provided on two opposed inner
side faces of each water channel (10) is able to engage with the
ridges (31) of each row of heat dissipating fins (30).
[0023] The first water tank mounting seat (50) has a first
elongated plate (51) securely connected to one side of the combined
water channels (10) and provided with eight first openings (511)
respectively communicating with each of the eight water channels
(10). Two free sides of the first elongated plate (51) are
respectively and securely engaged with the two securing plates
(20). The first elongated plate (51) further has a first skirt (52)
formed on a peripheral edge of the first elongated plate (51) and
multiple bendable first fingers (53) formed on a free edge of the
first skirt (52).
[0024] The second water tank mounting seat (60) has a second
elongated plate (61) securely connected to the other side of the
combined water channels (10) and provided with eight second
openings (611) respectively communicating with each of the eight
water channels (10). Two free sides of the second elongated plate
(61) are respectively and securely engaged with the two securing
plates (20). The second elongated plate (61) further has a second
skirt (62) formed on a peripheral edge of the second elongated
plate (51) and multiple bendable second fingers (63) formed on a
free edge of the second skirt (62).
[0025] The first water tank (70) is provided with a first casing
(71) sealingly connected to the first elongated plate (51) with a
first sealing ring (700) sandwiched therebetween, a first flange
(72) formed on a peripheral edge of the first casing (71) to be
securely connected by the first fingers (53) after the first
fingers (53) are bent, an inlet (73) and an outlet (74). The first
water tank (70) further has an inflow chamber (711) formed on a
bottom portion of the first water tank (70) to communicate with the
inlet (73) and bottom most two first openings (511), an outflow
chamber (712) formed on a top portion of the first water tank (70)
to communicate with top most two first openings (511) and a mediate
chamber (713) sandwiched between the inflow chamber (711) and the
outflow chamber (712) to communicate with the outlet (74) and
mediate four first openings (511).
[0026] The second water tank (80) has a second casing (81), a
second flange (82) formed on free edge of the second casing (81), a
bottom chamber (811) in communication with bottom most four second
openings (611) and a top chamber (812) in communication with top
most four second openings (611). Two fan brackets (90) are
respectively provided on a free side face of the two securing
plates (20) via threaded bolts (not numbered).
[0027] In this embodiment, the heat dissipating fins (30) are made
of aluminum and may be plated with a layer of bronze.
[0028] When this embodiment is in application, the inlet (73) is
connected to a water source and the outlet (74) may be connected to
a drainage pipe (not shown). After fresh water flows in the inlet
(73), the inlet chamber (711) is then filled with fresh water. Then
the fresh water flows to the bottom chamber (811) from the bottom
most two openings (511, 611). Because the bottom chamber (811)
communicates with four second openings (611), the water flows to
the two second openings (611) above the bottom most two second
openings (611) and eventually flows to the mediate chamber (713).
Again, because the mediate chamber (713) communicates with four
first openings (511), the water flows to the top chamber (812) and
then flows to the outflow chamber (712) and out of the first water
tank (70) via the outlet (74). The water path inside the heat
dissipator of the present invention is zigzagged such that each
heat dissipating fin (30) absorbing heat from the heat source
engages with the water to allow the water to take away the
heat.
[0029] With reference to FIG. 5, it is noted that in this
embodiment, the tin alloy welding layer (40) is composed of
multiple strips (40A) respectively connecting with ridges (31) of
the rows of the heat dissipating fins (30).
[0030] With reference to FIG. 6, it is noted that a pump (A) is
provided to connect to the inlet (73). A first connector (B)
connecting to an inflow pipe (C) is connected to the pump (A). A
second connector (D) is connected to the outlet (74) and a
transparent reservoir (F) via a connecting pipe (E). The
transparent reservoir (F) has a cap (G) on a side of the
transparent reservoir (F) such that when the water level observed
directly from outside the transparent reservoir (F) is low, the
operator may add in water to the transparent reservoir (F) by
removing the cap (G). An outflow pipe (H) is connected to the
transparent reservoir (F). A free end of the inflow pipe (C) and of
the outflow pipe (H) is respectively connected to a first universal
joint (J) and a second universal joint (K), where both the first
universal joint (J) and the second universal joint (K) are
connected to a heat absorption device (I). Therefore, after a fan
(L) is mounted on the fan supporting plates (90), heat absorbed by
the water flowing through the rows of the heat dissipating fins
(30) is dissipated by the air flow which is stirred by the fan (L).
In addition, the heat absorption device (I) may also facilitate the
heat dissipating efficiency while the pump (A) is pumping water
through the heat absorption device (I). The first universal joint
(J) and the second universal joint (K) help prevent the inflow pipe
(C) and the outflow pipe (H) from being tangled.
[0031] From the aforementioned description, it is noted that with
the features of the water channels (10) which are made of bronze,
heat is absorbed quickly. In addition, with the features of the
heat dissipating fins (30) which are made of aluminum, heat
dissipating efficiency is great. Combining the water channel (10)
and the heat dissipating fins (30) together, heat absorption and
heat dissipating efficiency are both great.
[0032] It is to be understood, however, that even though numerous
characteristics and advantages of the present invention have been
set forth in the foregoing description, together with details of
the structure and function of the invention, the disclosure is
illustrative only, and changes may be made in detail, especially in
matters of shape, size, and arrangement of parts within the
principles of the invention to the full extent indicated by the
broad general meaning of the terms in which the appended claims are
expressed.
* * * * *