U.S. patent application number 11/834165 was filed with the patent office on 2008-11-20 for water-cooling heat-dissipating system.
Invention is credited to Bo-Ren Hou, Ming-Chien Kuo, Hsiao-Kang Ma, Chang-Hung Peng.
Application Number | 20080283224 11/834165 |
Document ID | / |
Family ID | 40026340 |
Filed Date | 2008-11-20 |
United States Patent
Application |
20080283224 |
Kind Code |
A1 |
Ma; Hsiao-Kang ; et
al. |
November 20, 2008 |
WATER-COOLING HEAT-DISSIPATING SYSTEM
Abstract
A water-cooling heat-dissipating system for facilitating a
heat-dissipating action with a heat-generating element includes a
water block and a heat exchanger. The above-mentioned components
are in fluid communication with one another via a plurality of
conduits. The water block is attached on the heat-generating
element to absorb the heat generated by the heat-generating
element. The top surface of the water block is provided with a
membrane. The membrane is provided thereon with an activating
element, so that the membrane swings up and down at one side
thereof to guide the flow of the working fluid. The heat exchanger
performs a heat-conducting action with the flowing working fluid,
thereby dissipating the heat absorbed by the working fluid to the
outside. In this way, the heat-generating element can be kept in a
normal range of working temperature.
Inventors: |
Ma; Hsiao-Kang; (Taipei
City, TW) ; Peng; Chang-Hung; (Chung-Ho City, TW)
; Hou; Bo-Ren; (Yonghe City, TW) ; Kuo;
Ming-Chien; (Chung-Ho City, TW) |
Correspondence
Address: |
HDSL
4331 STEVENS BATTLE LANE
FAIRFAX
VA
22033
US
|
Family ID: |
40026340 |
Appl. No.: |
11/834165 |
Filed: |
August 6, 2007 |
Current U.S.
Class: |
165/104.31 |
Current CPC
Class: |
F04B 43/046 20130101;
F28D 15/00 20130101; H01L 23/473 20130101; H01L 2924/0002 20130101;
F28F 2250/08 20130101; H01L 2924/0002 20130101; H01L 2924/00
20130101 |
Class at
Publication: |
165/104.31 |
International
Class: |
F28D 15/00 20060101
F28D015/00 |
Foreign Application Data
Date |
Code |
Application Number |
May 18, 2007 |
TW |
096117721 |
Claims
1. A water-cooling heat-dissipating system, comprising: a water
block abutting against a heat-generating element for performing a
heat conduction with the heat-generating element, the water block
further including: a membrane provided on a top of the water block;
and an activating element adhered on an upper surface of the
membrane, the activating element having a fixed end and a swinging
end, the swinging end being movable along an arc-shaped trajectory
at one side; a plurality of conduits connected to the water block
to facilitate flowing of working fluid; and a heat exchanger
penetrated by the conduit for performing a heat-exchanging action
with the working fluid in the conduit.
2. The water-cooling heat-dissipating system according to claim 1,
further comprising: a second cavity being in fluid communication
with the water block, an inner wall face of the second cavity being
provided with a valve for blocking the working fluid from flowing
back into the water block; a third cavity being separated from the
second cavity and in fluid communication with the water block, an
inner wall face of the third cavity being provided with another
valve for blocking the working fluid from flowing back into the
water block.
3. The water-cooling heat-dissipating system according to claim 1,
wherein an interior of the water block is provided with a plurality
of heat-dissipating pieces.
4. The water-cooling heat-dissipating system according to claim 1,
wherein the heat exchanger comprises a plurality of
heat-dissipating pieces.
5. The water-cooling heat-dissipating system according to claim 1,
wherein the activating element is a piezoelectric piece.
6. The water-cooling heat-dissipating system according to claim 1,
further comprising a tank, the tank being in fluid communication
with the water block via the conduit for storing the working fluid.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a heat-dissipating system,
and in particular to a water-cooling heat-dissipating system in
which a working fluid is used as a heat-conducting medium.
[0003] 2. Description of Prior Art
[0004] Since the required power of electronic elements and
semiconductors contained therein becomes larger and larger, the
electricity consumption of the associated system increases
substantially. As a result, the amount of heat generated by the
electricity-controlled elements also increases to a great extent.
In order to reduce the excessively high temperature of the
electronic element and keep the working temperature thereof stable,
therefore, it is an important issue for modern technology to
develop an excellent heat-dissipating solution.
[0005] As far as now is concerned, in addition to the
heat-dissipating fan that is used most commonly, another common
heat-dissipating solution is a water-cooling heat-dissipating
system. Conventional water-cooling heat-dissipating system includes
some primary components such as a water block, a pump, a water tank
and a water cooler. The primary components are in fluid
communication with one another via conduits, thereby allowing a
working fluid to flow in each component. The water block is
attached to a heat-generating element directly to absorb the heat
generated by the heat-generating element. After the water block
performs a heat-exchanging action with the working fluid flowing
therein, the heat generated by the heat-generating element can be
taken away. Finally, after the working fluid flows to the water
cooler and performs a heat-exchanging action with the water cooler,
the heat can be dissipated to the outside to keep the
heat-generating element within a normal range of working
temperature. The pump is used to generate a force to push the
working fluid to flow in each component. The water tank is used to
store additional working fluid.
[0006] However, since the functions of modern electronic products
are more and more powerful, it is necessary to require various
electronic elements, which inevitably occupies the accommodating
space within the electronic product and also affects the
arrangement of the water-cooling heat-dissipating system directly.
Although each of the primary components of the water-cooling
heat-dissipating system starts to reduce its volume to correspond
to the limited arrangement space so as to optimize the integrity
and utilization of space, the conventional pump structure uses a
turbine to increase the pressure so as to generate a thrust. The
turbine assembly has a certain structure and volume. Therefore, it
is difficult to further compress the whole volume of the pump;
however, the water-cooling heat-dissipating system still occupies a
certain space. As a result, it is difficult to apply the
water-cooling heat-dissipating system to a further thinner
electronic product, which becomes a drawback of the water-cooling
heat-dissipating system.
SUMMARY OF THE INVENTION
[0007] In view of the above drawback, the present invention is to
provide a water-cooling heat-dissipating system having a thin pump.
By providing a membrane pump which uses an activating element as a
power source, the volume of the membrane pump is compressed
substantially and thus the space occupied by the water-cooling
heat-dissipating system is reduced. Not only the utilization of the
space can be improved, but also the water-cooling heat-dissipating
system can be applied to more electronic products having a thinner
structure.
[0008] The present invention provides a water-cooling
heat-dissipating system, which includes a water block and a heat
exchanger. The above-mentioned components are in fluid
communication with one another via a plurality of conduits. The
water block is attached on a heat-generating element to absorb the
heat generated by the heat-generating element. The top surface of
the water block is provided with a membrane. The membrane is
provided thereon with an activating element, so that the membrane
swings up and down at one side thereof to guide the flow of the
working fluid. The heat exchanger performs a heat-conducting action
with the flowing working fluid, thereby dissipating the heat
absorbed by the working fluid to the outside. In this way, the
heat-generating element can be kept in a normal range of working
temperature.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] FIG. 1 is a perspective view showing the structure of the
present invention;
[0010] FIG. 2 is an exploded perspective view showing the structure
of a membrane pump of the present invention;
[0011] FIG. 3 is a top view of a second embodiment of the present
invention;
[0012] FIG. 4 is a top view of a third embodiment of the present
invention;
[0013] FIG. 5 is a top view of a fourth embodiment of the present
invention;
[0014] FIG. 6 is a top view of showing the structure of a fifth
embodiment of the present invention;
[0015] FIG. 7 is an exploded view showing the membrane pump of the
fifth embodiment of the present invention;
[0016] FIG. 8 is a top view of showing the structure of a sixth
embodiment of the present invention;
[0017] FIG. 9 is a top view of showing the structure of a seventh
embodiment of the present invention; and
[0018] FIG. 10 is a top view of showing the structure of an eighth
embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
[0019] The technical contents of the present invention will be
explained with reference to the accompanying drawings.
[0020] FIG. 1 is a perspective view showing the structure of a
water-cooling heat-dissipating system, and FIG. 2 is an exploded
perspective view showing the structure of a membrane pump. In the
present embodiment, each of the primary components is connected in
series. As shown in this figure, the primary components of the
water-cooling heat-dissipating system of the present invention
include a water block 1, a membrane pump 2, a water tank 3 and a
heat exchanger 4. The above-mentioned primary components are in
fluid communication with one another via a plurality of conduits 5,
so that a working fluid can flow in the individual primary
component. In the present embodiment, the water-cooling
heat-dissipating system is provided on a main board 6. The water
block 1 is attached on a heat-generating element (not shown)
directly, thereby performing a heat-conducting action with the
heat-generating element. The water block 1 is a hollow cavity. The
interior of the water block is provided with a plurality of
heat-dissipating pieces 11 to form a plurality of flowing paths
112. The front and rear ends of the water block 1 are provided with
an inlet pipe 13 and an outlet pipe 14 respectively to allow the
working fluid to flow therethrough. In this way, the heat generated
by the heat-generating element can be absorbed by the plurality of
internal heat-dissipating pieces 11. After performing a
heat-exchanging action with the flowing working fluid, the heat
generated by the heat-generating element can be taken away via the
working fluid.
[0021] With reference to FIG. 1 and FIG. 2, in the present
embodiment, the membrane pump 2 is in fluid communication with the
water block 1. The membrane pump 2 is mainly constituted of a
cavity 21. Both sides of the cavity 21 are provided with an inlet
pipe 211 and an outlet pipe 212. The interior of the cavity 21 is
provided with a chamber 213 that is in fluid communication with the
inlet pipe 211 and the outlet pipe 212. The upper end face of the
cavity 1 is provided with a membrane 22 that is made of a material
having high tension. The size of the membrane 22 is slightly
identical to the area of one end face of the cavity 1, thereby
covering the chamber 213 completely. An activating element 23 is
provided above the membrane 22. In the present embodiment, the
activating element 23 is a piezoelectric sheet that is provided
above the chamber 213 correspondingly and abuts against the
membrane 22. The activating element 23 has a fixed end 231 and a
swinging end 232. The fixed end 231 is located on the same side as
that of the outlet pipe 212. The fixed end 231 is connected with a
plurality of electrode leads 7 to supply the necessary electricity
for the activating element 23. The swinging end 232 abuts against
the surface of the membrane 22. After the electricity is supplied,
the swinging end 232 generates a swinging action along an
arc-shaped trajectory at one side. Via the swinging action, the
working fluid can be concentrated to flow in the same direction, so
that the membrane 22 is driven to press the chamber 213. In
addition, the swinging frequency of the activating element 23 can
be adjusted according to various demands.
[0022] Finally, the cavity 21 can be combined with a casing 24 to
cover the above-mentioned membrane 22 and the activating element 23
therein. The casing 24 is provided thereon with a plurality of
penetrating holes 241 and 241a to correspond to the activating
element 23 and the electrode leads 4 respectively, thereby allowing
the activating element 23 to be exposed and having a space for
extension. The activating element 23 is penetrated by the electrode
leads 7. The tank 3 and the membrane pump 2 are connected and in
fluid communication with each other, thereby storing addition
amount of water. Finally, the heat exchanger 4 comprises a
plurality of heat-dissipating pieces 41. A conduit 5 penetrates
into the heat exchanger 4. Via this arrangement, when the working
fluid flows through the heat exchanger 4, the working fluid
performs a heat-exchanging action with the plurality of
heat-dissipating pieces 41, so that the heat can be dissipated to
each heat-dissipating piece 41 and finally dissipated to the
outside to complete the heat dissipation. Furthermore, in the
present embodiment, the conduit 5 has a volume-cushioning effect,
thereby bearing the volume expansion of the working fluid due to
the high temperature. In this way, the conduit 5 can be pressed to
expand outwardly to release the internal pressure of the
water-cooling heat-dissipating system.
[0023] With reference to FIG. 3 and FIG. 4, they are top views of
the second and third embodiments of the present invention
respectively. As shown in FIG. 3, the inlet pipe 211 and the outlet
pipe 212 of the membrane pump 2 are connected to a second cavity 8
and a third cavity 9 respectively. The interior of the second
cavity 8 has a second chamber 81. Both sides of the second cavity 8
are provided with an inlet pipe 82 and an outlet pipe 83. The inlet
pipe 82 is in fluid communication with the outlet pipe 14 of the
water block 1 via a conduit 5, while the outlet pipe 83 is in fluid
communication with the inlet pipe 211 of the membrane pump 2. The
inner wall face of the second chamber 81 is provided with a valve
10 at a position corresponding to that of the inlet pipe 82.
Similarly, the interior of the third cavity 9 has a third chamber
91. Both sides of the third cavity 9 are provided with an inlet
pipe 92 and an outlet pipe 93. The inlet pipe 92 of the third
cavity 9 is in fluid communication with the outlet pipe 212 of the
membrane pump 2 via the conduit 5, and the outlet pipe 93 is in
fluid communication with the tank 3 via the conduit 5. Finally, the
inner wall face of the third chamber 91 is provided with a valve
10a at a position corresponding to that of the inlet pipe 92.
Further, the second cavity 8 and the third cavity 9 are separated
from each other and are not in fluid communication with each other
directly.
[0024] Via the above arrangement, when the activating element 23 on
the membrane pump 2 starts to swing downwardly, the membrane 22 is
caused to compress the internal space of the chamber 213 of the
membrane pump 2, thereby forcing the working fluid to flow toward
the inlet pipe 211 and the outlet pipe 212. The working fluid is
compressed to generate a thrust to flow through the valve 10a via
the outlet pipe 212, and then flow through the third chamber 91 to
achieve the tank 3. At the same time, the working fluid flowing
toward the inlet pipe 211 enters the second chamber 81 to press the
valve 10, thereby closing the inlet pipe 82 of the second cavity 8
tightly to prevent the working fluid outside the inlet pipe 82 from
entering the second chamber 81. When the activating element 23
swings upwardly, the chamber 213 can return to its original space.
Since the external pressure is larger than the pressure within the
chamber 213, the working fluid is caused to flow through the valve
10 via the inlet pipe 82 and then flows into the chamber 213. At
the same time, the working fluid existing in the third cavity 9
also generates a thrust to press the valve 10a within the third
chamber 91, so that the valve 10a closes the inlet pipe 92 tightly
to prevent the working fluid from flowing back into the chamber
213. In this way, the water-cooling heat-dissipating system can
generate a circulation in one direction. Further, the connecting
positions of the second cavity 8 and the third cavity 9 can be
changed. As shown in FIG. 4, the second cavity 8 is provided
between the heat exchanger 4 and the water block 1, which also has
the same effect.
[0025] With reference to FIG. 5, it is a top view of the fourth
embodiment of the present invention. As shown in this figure, the
chamber 213 of the membrane pump 2 is provided with a valve 10 at
the position corresponding to that of the inlet pipe 211. Further,
a second cavity 8 is provided between the membrane pump 2 and the
water tank 3. The second cavity 8 has a second chamber 81 therein.
Both sides of the second cavity 8 are provided with an inlet pipe
82 and an outlet pipe 83. The inlet pipe 82 and the outlet pipe 83
are in fluid communication with the membrane pump 2 and the tank 3
via the conduits 5 respectively. Further, the interior of the
second chamber 81 is provided with a valve 10a at the position
corresponding to that of the inlet pipe 82. Via this arrangement,
when the activating element 23 on the membrane pump 2 starts to
swing downwardly, the membrane 22 is caused to compress the
internal space of the chamber 213 of the membrane pump 2, thereby
forcing the working fluid to flow toward the inlet pipe 211 and the
outlet pipe 212 respectively. The working fluid is compressed to
generate a thrust to flow through the valve 10 via the outlet pipe
212, and then flow through the second chamber 81 to achieve the
tank 3. At the same time, the working fluid flowing toward the
inlet pipe 211 presses the valve 10 that is located at the position
corresponding to that of the inlet pipe 211, thereby closing the
inlet pipe 82 of the second cavity 8 tightly to prevent the working
fluid from flowing to the outside of the inlet pipe 82. When the
activating element 23 swings upwardly, the chamber 213 can return
to its original space. Since the external pressure is larger than
the pressure within the chamber 213, the working fluid is caused to
flow through the valve 10 via the inlet pipe 211 and then flows
into the chamber 213. At the same time, the working fluid existing
in the second cavity 8 also generates a thrust to press the valve
10a within the second chamber 81, so that the valve 10a closes the
inlet pipe 82 tightly to prevent the working fluid from flowing
back into the chamber 213. In this way, the water-cooling
heat-dissipating system can generate a circulation in one
direction.
[0026] FIG. 6 is a top view of showing the structure of a fifth
embodiment of the present invention, and FIG. 7 is an exploded view
of the membrane pump. As shown in FIG. 6, the primary components of
the water-cooling heat-dissipating system include a water block 1,
a membrane pump 2, a water tank 3 and a heat exchanger 4. The
above-mentioned primary components are in fluid communication with
one another via a plurality of conduits 5, so that the working
fluid can flow in the individual primary component. In the present
embodiment, the water-cooling heat-dissipating system is provided
on a main board 6. The water block 1 is attached on a
heat-generating element (not shown) directly, thereby performing a
heat-conducting action with the heat-generating element. The water
block 1 is a hollow cavity. The interior of the water block 1 is
provided with a plurality of heat-dissipating pieces 11 to form a
plurality of flowing paths 12. The front and rear ends of the water
block 1 are provided with an inlet pipe 13 and an outlet pipe 14
respectively to allow the working fluid to flow therethrough. In
this way, the heat generated by the heat-generating element can be
absorbed by the plurality of internal heat-dissipating pieces 11.
After performing a heat-exchanging action with the flowing working
fluid, the heat generated by the heat-generating element can be
taken away via the working fluid.
[0027] The structure of the membrane pump 2 further includes a
cavity 21. Both sides of the cavity 21 are provided with an inlet
pipe 211 and an outlet pipe 212 respectively. The interior of the
cavity 21 is provided with a first chamber 214 and a second chamber
215 that are in fluid communication with each other via a through
hole 216. The inlet pipe 211 and the outlet pipe 212 are in fluid
communication with the first chamber 214 and the second chamber 215
respectively. The inner wall face of the first chamber 214 is
provided with a valve 10 at a position corresponding to that of the
inlet pipe 211. The valve is provided in a penetrating trough 217
on the inner wall, thereby blocking the working fluid from flowing
back into the inlet pipe 211 from the first chamber 214 and then
flowing out of the cavity 21. The inner wall face of the second
chamber 215 is provided with a valve 10a at a position
corresponding to that of the through hole 216, thereby blocking the
working fluid from flowing back into the first chamber 214 from the
second chamber 215 via the through hole 216. The valve 10a is
arranged in the same manner as that of the valve 10 in the first
chamber 214. The upper end face of the cavity 21 is provided with a
membrane 22 for covering the first chamber 214 and the second
chamber 215 completely. An activating element 23 is provided above
the membrane 22 and is provided above the first chamber 214
correspondingly to abut against the membrane 22. The activating
element 23 has a fixed end 231 and a swinging end 232. The fixed
end 231 is located on the same side as that of the outlet pipe 212.
The fixed end 231 is connected with a plurality of electrode leads
7 to supply the necessary electricity for the activating element
23. The swinging end 232 abuts against the surface of the membrane
22. After the electricity is supplied, the swinging end 232
generates a swinging action along an arc-shaped trajectory to cause
the membrane 2 to press toward the first chamber 214. Finally, the
cavity 21 is combined with a casing 24 to cover the above-mentioned
membrane 22 and the activating element 23 therein. The casing 24 is
provided thereon with a plurality of penetrating holes 241, 241a
and 241b that are located at the positions corresponding to the
activating element 23, the electrode leads 7 and the second chamber
215 respectively, thereby allowing the activating element 23 to be
exposed and having a space for extension. The electrode leads 7
also penetrate through the activating element 23. The action of the
membrane pump 2 keeps the working fluid to flow in one
direction.
[0028] With reference to FIG. 6 again, the tank 3 and the membrane
pump 2 are connected and in fluid communication with each other,
thereby storing addition amount of water. Finally, the heat
exchanger 4 comprises a plurality of heat-dissipating pieces 41. A
conduit 5 penetrates into the heat exchanger 4. Via this
arrangement, when the working fluid flows through the heat
exchanger 4, the working fluid performs a heat-exchanging action
with the plurality of heat-dissipating pieces 41, so that the heat
can be dissipated to each heat-dissipating piece 41 and finally
dissipated to the outside to complete the heat dissipation.
[0029] Therefore, when the swinging end 232 of the activating
element 23 swings downwardly, the membrane 22 is caused to compress
the internal space of the first chamber 214 to generate a pressure,
thereby forcing the working fluid to flow through the valve 10a
toward the second chamber 215 and then the tank 3. In this way, the
working fluid within the water-cooling heat-dissipating system can
generate a flow. Although a small portion of the working fluid may
flow toward the inlet pipe 211, the thrust generated by the
membrane 22 can also press the valve 10 to close the opening of the
inlet pipe 211 tightly, thereby preventing the working fluid from
flowing back into the inlet pipe 211. When the swinging end 232 of
the activating element 23 swings upwardly, the membrane 22 can
return to its original shape to release the internal space of the
first chamber 214. In this way, the pressure within the first
chamber 214 is smaller than the external pressure, so that the
working fluid is caused to flow through the valve 10 via the inlet
pipe 211 and then flows into the first chamber 214. Further,
because of the pressure, the working fluid remaining in the outlet
pipe 212 and the second chamber 215 also generates a thrust to
press the valve 10a, so that the valve 10a closes the through hole
216 tightly to block the working fluid remaining in the outlet pipe
212 and the second chamber 215 from flowing back into the first
chamber 214. In this way, the working fluid within the membrane
pump 2 forms a larger amount flow in one direction. Further, the
working fluid in the water-cooling heat-dissipating system can flow
continuously in one direction.
[0030] With reference to FIG. 8, it is a top view showing the
structure of the sixth embodiment of the present invention. In the
present invention, the components of the water-cooling
heat-dissipating system can be connected in series or in parallel
according to various demands for heat dissipation. In addition to
the previous embodiment in which the components are connected in
series to form a single-circulation type water-cooling
heat-dissipating system, as shown in FIG. 8, the water-cooling
heat-dissipating system of the present invention can be applied to
a plurality of heat-generating elements. The primary components of
the water-cooling heat-dissipating system include a plurality of
water blocks 1 and 1a (in the present embodiment, there are two
water blocks), a membrane pump 2, a water tank 3, a heat exchanger
4, and a second cavity 8 and a third cavity 9 provided on both ends
of the membrane pump 2. The water block 1 and 1a are adhered in
parallel on the heat-generating elements, and then are in fluid
communication with the second cavity 8, the membrane pump 2, the
third cavity 9, the tank 3 and the heat exchanger 4 via a plurality
of conduits 5. Via this arrangement, the working fluid within the
water-cooling heat-dissipating system can flow through the
plurality of water blocks 1 and 1a to perform a heat-exchanging
action, thereby taking away the heat generated by the plurality of
heat-generating elements. Furthermore, the parallel arrangement can
be also applied on the membrane pump 2. A plurality of membrane
pumps 2 can be assembled together in parallel, thereby increasing
the amount of flow and the speed of the working fluid within the
water-cooling heat-dissipating system and thus enhancing the
heat-dissipating efficiency of the water-cooling heat-dissipating
system.
[0031] With reference to FIG. 9, it is a top view showing the
structure of the seventh embodiment of the present invention. The
present embodiment is another kind of parallel arrangement. As
shown in this figure, the primary components of the water-cooling
heat-dissipating system include a plurality of water blocks 1 and
1a (in the present embodiment, there are two water blocks), a
membrane pump 2, a water tank 3, a heat exchanger 4, and a
plurality of second cavities 8a-8e. The water blocks 1 and 1a are
attached in parallel on the heat-generating elements. The inlet
pipe 13 and the outlet pipe 14 of the water block 1 are in fluid
communication with the second cavities 8c and 8d via the conduits
5. The inlet pipe 13a and the outlet pipe 14a of the water block 1a
are in fluid communication with the second cavities 8a and 8b via
the conduits 5. The working fluid can be controlled to flow in/out
the water block 1, 1 a by valves 10a-10e provided within the second
cavities 8a-8e. Further, the second cavity 8e is provided between
the membrane pump 2 and the tank 3 to control the re-flow of the
working fluid.
[0032] With reference to FIG. 10, it is a top view showing the
structure of the eighth embodiment of the present invention. In the
present embodiment, the water block and the membrane pump are
combined with each other to form a unit. As shown in this figure,
the primary components of the water-cooling heat-dissipating system
include a water block 1, a water tank 3, a heat exchanger 4, a
second cavity 8 and a third cavity 9. The above-mentioned primary
components are in fluid communication with one another via a
plurality of conduits 5, so that the working fluid can flow in the
individual primary component. The interior of the water block 1 is
provided with a plurality of heat-dissipating pieces 11. Any
neighboring heat-dissipating pieces 11 form a flowing path 12. Both
sides of the water block 1 are provided with an inlet pipe 13 and
an outlet pipe 14 that are in fluid communication with the second
cavity 8 and the third cavity 9 via the conduits 5 respectively.
The second cavity 8 and the third cavity 9 are provided therein
with a valve 10 and 10a respectively. Further, the upper end face
of the water block 1 is provided with a membrane 22a that is made
of a material having high tension. The size of the membrane 22a is
slightly identical to the area of the upper end face of the water
block 1. An activating element 23a is provided above the water
block 1. In the present embodiment, the activating element 23a is a
piezoelectric sheet that abuts against the membrane 22a. The
activating element 23a has a fixed end 231a and a swinging end
232a. The fixed end 231a is located on the same side as that of the
outlet pipe 14. The fixed end 231a is connected with a plurality of
electrode leads (not shown) to supply the necessary electricity for
the activating element 23a. The swinging end 232a is attached to
the surface of the membrane 22a. After the electricity is supplied,
the swinging end 232a generates a large-range swinging action along
an arc-shaped trajectory at one side. In addition, the swinging
frequency of the activating element 23a can be adjusted according
to various demands. The third cavity 9 is in fluid communication
with the water tank 3 via the conduit 5. The water tank 3 is then
in fluid communication with the heat exchanger 4 via the conduit 5.
As a result, a complete water-cooling heat-dissipating system can
be obtained.
[0033] Since the water block 1 abuts against the heat-generating
element, the water block 1 absorbs the heat generated by the
heat-generating element, and the working fluid takes the heat away.
When the electricity is supplied to the activating element 23a via
the leads, the swinging end 232a of the activating element 23a can
generate a swinging action along an arc-shaped trajectory at one
side. When the swinging end 232a of the activating element 23a
swings downwardly, the membrane 22a is caused to compress the
internal space of the water block 1 to generate a pressure.
Swinging along an arc-shaped trajectory can concentrate the working
fluid to flow in one direction, thereby forcing the working fluid
to flow out of the outlet pipe 14. Then, the working fluid flows
through the valve 10a provided in the third cavity 9, the tank 3
and the heat exchanger 4. At the same time, the thrust generated
also presses the valve 10 within the second cavity 8, thereby
blocking the working fluid from entering the water block 1. When
the swinging end 232a of the activating element 23a swings
upwardly, the membrane 22a returns to original shape to release the
internal space of the water block 1. Since the pressure within the
water block 1 is smaller than the external pressure, the working
fluid is caused to flow through the valve 10 within the second
cavity 8. Thereafter, the working fluid enters the water block 1
via the inlet pipe 13, so that the water block can have an effect
of pump to force the working fluid to flow in/out of the water
block 1 rapidly. In this way, the working fluid can form a larger
amount of flow in one direction.
[0034] Although the present invention has been described with
reference to the foregoing preferred embodiments, 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.
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