U.S. patent application number 11/432368 was filed with the patent office on 2007-08-23 for composite heat-dissipating module.
This patent application is currently assigned to Sunonwealth Electric Machine Industry Co., Ltd.. Invention is credited to Alex Horng, Masaharu Miyahara.
Application Number | 20070193720 11/432368 |
Document ID | / |
Family ID | 38319974 |
Filed Date | 2007-08-23 |
United States Patent
Application |
20070193720 |
Kind Code |
A1 |
Horng; Alex ; et
al. |
August 23, 2007 |
Composite heat-dissipating module
Abstract
A composite heat-dissipating module includes a heat-dissipating
plate, an impeller, and a pump. The heat-dissipating plate includes
at least one heat-dissipating section and a circulating pipe. The
heat-dissipating section is thermally connected to an object to be
dissipated. The circulating pipe contains a liquid coolant that
circulates in the circulating pipe. The impeller is mounted
adjacent to the heat-dissipating section for driving air to cool
the heat-dissipating section. The pump drives the liquid coolant to
circulate in the circulating pipe between the pump and the
heat-dissipating section for cooling the heat-dissipating
section.
Inventors: |
Horng; Alex; (Kaohsiung,
TW) ; Miyahara; Masaharu; (Kaohsiung, TW) |
Correspondence
Address: |
BIRCH STEWART KOLASCH & BIRCH
PO BOX 747
FALLS CHURCH
VA
22040-0747
US
|
Assignee: |
Sunonwealth Electric Machine
Industry Co., Ltd.
|
Family ID: |
38319974 |
Appl. No.: |
11/432368 |
Filed: |
May 12, 2006 |
Current U.S.
Class: |
165/104.19 ;
165/104.31; 165/122; 257/E23.098; 257/E23.099 |
Current CPC
Class: |
F28D 15/00 20130101;
H01L 2924/0002 20130101; H01L 23/467 20130101; H01L 23/473
20130101; H01L 2924/0002 20130101; G06F 1/203 20130101; H01L
2924/00 20130101 |
Class at
Publication: |
165/104.19 ;
165/104.31; 165/122 |
International
Class: |
F28D 15/00 20060101
F28D015/00; F28F 13/12 20060101 F28F013/12 |
Foreign Application Data
Date |
Code |
Application Number |
Feb 20, 2006 |
TW |
095105598 |
Claims
1. A composite heat-dissipating module comprising: a
heat-dissipating plate comprising at least one heat-dissipating
section and a circulating pipe, said at least one heat-dissipating
section being adapted to be thermally connected to an object to be
dissipated, the circulating pipe being adapted to contain a liquid
coolant that circulates in the circulating pipe; an impeller
mounted adjacent to said at least one heat-dissipating section for
driving air to cool said at least one heat-dissipating section; and
a pump mounted adjacent to the impeller, the pump driving the
liquid coolant to circulate in the circulating pipe between the
pump and said at least one heat-dissipating section for cooling
said at least one heat-dissipating section.
2. The composite heat-dissipating module as claimed in claim 1
wherein the impeller and the pump are superimposed one on the
other.
3. The composite heat-dissipating module as claimed in claim 2
wherein the heat-dissipating plate includes two sides each having a
receiving section, the receiving sections receiving the impeller
and the pump respectively.
4. The composite heat-dissipating module as claimed in claim 2
further comprising a base including two sides each having a
receiving section, the receiving sections receiving the impeller
and the pump respectively.
5. The composite heat-dissipating module as claimed in claim 1
wherein the impeller and the pump are mounted side by side.
6. The composite heat-dissipating module as claimed in claim 5
wherein the heat-dissipating plate includes a side having two
receiving sections that are in communication with each other, the
receiving sections receiving the impeller and the pump
respectively.
7. The composite heat-dissipating module as claimed in claim 5
further comprising a base including a side having two receiving
sections in communication with each other, the receiving sections
receiving the impeller and the pump respectively.
8. The composite heat-dissipating module as claimed in claim 1
further comprising a driving unit for synchronously driving the
impeller and the pump.
9. The composite heat-dissipating module as claimed in claim 8
wherein the driving unit is an axial-flow motor, a radial-flow
motor, or a single-phase motor.
10. The composite heat-dissipating module as claimed in claim 9
wherein the driving unit comprises a stator and a rotational
portion, the rotational portion being mounted to the impeller, the
stator driving the rotational portion and the impeller to turn.
11. The composite heat-dissipating module as claimed in claim 9
wherein the driving unit comprises a stator and a rotational
portion, the rotational portion being mounted on the pump, the
stator driving the rotational portion and the pump to turn.
12. The composite heat-dissipating module as claimed in claim 8
further comprising a transmission device for the driving unit, the
transmission device including at least one gear or at least one
belt.
13. The composite heat-dissipating module as claimed in claim 12,
wherein the impeller includes a first transmission plate, the pump
including a second transmission plate, the first transmission plate
and the second transmission plate constituting the transmission
device, each of the first transmission plate and the second
transmission plate including a periphery with a plurality of teeth
for meshing, allowing synchronous rotation of the first
transmission plate and the second transmission plate.
14. The composite heat-dissipating module as claimed in claim 12,
wherein the impeller includes a first transmission plate, the pump
including a second transmission plate, the first transmission plate
and the second transmission plate constituting the transmission
device, each of the first transmission plate and the second
transmission plate including a periphery having an annular groove,
at least one belt being mounted in the annular grooves to allow
synchronous rotation of the first transmission plate and the second
transmission plate.
15. The composite heat-dissipating module as claimed in claim 1
wherein the impeller includes a hub, a plurality of vanes, and a
shaft.
16. The composite heat-dissipating module as claimed in claim 15
wherein the vanes are of blower type or axial flow type.
17. The composite heat-dissipating module as claimed in claim 1
wherein the pump includes a rotational board, a plurality of
driving board, and a shaft.
18. The composite heat-dissipating module as claimed in claim 17
wherein the pump is a vane pump, gear pump, or swirl pump.
19. The composite heat-dissipating module as claimed in claim 1
wherein the impeller includes a hub and a plurality of vanes, the
pump including a rotational board and a plurality of driving
boards, the impeller and the pump having a common shaft.
20. The composite heat-dissipating module as claimed in claim 1
wherein the heat-dissipating plate includes a plurality of fins and
a plurality of channels alternately disposed on said at least one
heat-dissipating section.
21. The composite heat-dissipating module as claimed in claim 1
wherein the circulating pipe is mounted inside the heat-dissipating
plate.
22. The composite heat-dissipating module as claimed in claim 1
wherein the circulating pipe is in contact with a side of the
heat-dissipating plate.
23. The composite heat-dissipating module as claimed in claim 1
wherein the circulating pipe is winding in said at least one
heat-dissipating section.
24. The composite heat-dissipating module as claimed in claim 1
further comprising a lid, the heat-dissipating plate including a
receiving section, the lid being mounted to cover the receiving
section, the impeller being received in the receiving section, the
lid including an air inlet facing the impeller.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to heat-dissipating module.
More particularly, the present invention relates to a composite
heat-dissipating-module for cooling a heat-generating
component.
[0003] 2. Description of Related Art
[0004] U.S. Patent Application Publication No. 2004/0042173 A1
discloses an electronic apparatus having a circulating path through
which liquid coolant cooling a heat generating component flows.
Referring to FIG. 1 of the accompanying drawings, the electronic
apparatus comprises a main unit 91, a display unit 92, a heat
receiving portion 93, a heat radiating portion 94, a circulating
path 95, an electric fan 96, and a pump 97. The display unit 92 is
rotatably connected to the main unit 91 and movable between a
closed position and an open position. The heat receiving portion 93
is thermally connected to a heat generating component 911 (such as
a CPU) in the main unit 91. The heat radiating portion 94 is
mounted in the display unit 92 for releasing the heat generated by
the heat generating component 911. A liquid coolant circulates in
the circulating path 95 for delivering the heat generated by the
heat generating component 911 to the heat radiating portion 94.
[0005] The electric fan 96 is mounted in the display unit 92 for
guiding cool air to the heat radiating portion 93. The pump 97 is
mounted in the main unit 91 and located between the heat receiving
portion 93 and the heat radiating portion 94 in the circulating
path 95. The pump 97 drives the liquid coolant to flow. When in
use, the liquid coolant circulates in the circulating path 95 for
dissipating the heat generated by the heat generating component
911. Meanwhile, the liquid coolant and the electric fan 96 together
dissipate heat generated by other heat generating component 98
(such as a screen of a liquid crystal display), providing dual
heat-dissipating effect (liquid cooling and air cooling).
[0006] However, the electric fan 96 and the pump 97 are
respectively mounted in the main unit 91 and the display unit 92,
occupying a larger space, requiring a longer circulating path 95,
and further requiring two motors for separately operating the
electric fan 96 and the pump 97. Further, the electric fan 96 can
only provide air cooling for the heat radiating portion 94. Namely,
the electric fan 96 could not provide air cooling for the heat
receiving portion 93. As a result, the composite heat-dissipating
module of this type could not be used in a small-size housing of a
notebook type personal computer and thus has limited
application.
OBJECTS OF THE INVENTION
[0007] An object of the present invention is to provide a composite
heat-dissipating module that saves the space for assembly and that
has a simplified structure.
[0008] Another object of the present invention is to provide a
composite heat-dissipating module that has a low-energy consuming
rate.
[0009] A further object of the present invention is to provide a
composite heat-dissipating module that has a low risk of leakage of
coolant.
SUMMARY OF THE INVENTION
[0010] A composite heat-dissipating module in accordance with the
present invention comprises a heat-dissipating plate, an impeller,
and a pump. The heat-dissipating plate comprises at least one
heat-dissipating section and a circulating pipe. The at least one
heat-dissipating section is adapted to be thermally connected to an
object to be dissipated. The circulating pipe is adapted to contain
a liquid coolant that circulates in the circulating pipe. The
impeller is mounted adjacent to the at least one heat-dissipating
section for driving air to cool the at least one heat-dissipating
section. The pump drives the liquid coolant to circulate in the
circulating pipe between the pump and the at least one
heat-dissipating section for cooling the at least one
heat-dissipating section.
[0011] In an embodiment, the impeller and the pump are superimposed
one on the other. The heat-dissipating plate includes two sides
each having a receiving section. The receiving sections receive the
impeller and the pump respectively. Alternatively, the composite
heat-dissipating module comprises a base including two sides each
having a receiving section, the receiving sections receiving the
impeller and the pump respectively.
[0012] In another embodiment, impeller and the pump are mounted
side by side. The heat-dissipating plate includes a side having two
receiving sections that are in communication with each other. The
receiving sections receive the impeller and the pump respectively.
Alternatively, the composite heat-dissipating module comprises a
base including a side having two receiving sections in
communication with each other. The receiving sections receive the
impeller and the pump respectively.
[0013] Preferably, a driving unit is provided for synchronously
driving the impeller and the pump.
[0014] Preferably, the driving unit is an axial-flow motor, a
radial-flow motor, or a single-phase motor.
[0015] Preferably, the driving unit comprises a stator and a
rotational portion. The rotational portion is mounted to the
impeller. The stator drives the rotational portion and the impeller
to turn.
[0016] Alternatively, the driving unit comprises a stator and a
rotational portion. The rotational portion is mounted on the pump.
The stator drives the rotational portion and the pump to turn.
[0017] Preferably, a transmission device is provided for the
driving unit and includes at least one gear or at least one
belt.
[0018] In an example, the impeller includes a first transmission
plate and the pump including a second transmission plate. The first
transmission plate and the second transmission plate constitute the
transmission device. Each of the first transmission plate and the
second transmission plate includes a periphery with a plurality of
teeth for meshing, allowing synchronous rotation of the first
transmission plate and the second transmission plate.
[0019] In another example, each of the first transmission plate and
the second transmission plate includes a periphery having an
annular groove. At least one belt is mounted in the annular grooves
to allow synchronous rotation of the first transmission plate and
the second transmission plate.
[0020] In an embodiment, the impeller includes a hub, a plurality
of vanes, and a shaft.
[0021] Preferably, the vanes are of blower type or axial flow
type.
[0022] Preferably, the pump includes a rotational board, a
plurality of driving board, and a shaft.
[0023] Preferably, the pump is a vane pump, gear pump, or swirl
pump.
[0024] In another embodiment, the impeller includes a hub and a
plurality of vanes. The pump includes a rotational board and a
plurality of driving boards. The impeller and the pump have a
common shaft.
[0025] Preferably, the heat-dissipating plate includes a plurality
of fins and a plurality of channels alternately disposed on the at
least one heat-dissipating section.
[0026] In an embodiment, the circulating pipe is mounted inside the
heat-dissipating plate.
[0027] Alternatively, the circulating pipe is in contact with a
side of the heat-dissipating plate.
[0028] Preferably, the circulating pipe is winding in the at least
one heat-dissipating section.
[0029] Preferably, the heat-dissipating plate includes a receiving
section, and a lid is mounted to cover the receiving section. The
impeller is received in the receiving section, and the lid includes
an air inlet facing the impeller.
[0030] Other objects, advantages and novel features of this
invention will become more apparent from the following detailed
description when taken in conjunction with the accompanying
drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0031] FIG. 1 is an exploded perspective view illustrating an
electronic apparatus using a conventional composite
heat-dissipating module;
[0032] FIG. 2 is a perspective view, partly exploded, of a first
embodiment of a composite heat-dissipating module in accordance
with the present invention;
[0033] FIG. 2A is an enlarged perspective view, partly cutaway, of
a portion of the composite heat-dissipating module in FIG. 2;
[0034] FIG. 3 is a top view of a first embodiment of the composite
heat-dissipating module in accordance with the present invention
after assembly;
[0035] FIG. 4 is a sectional view taken along plane 4-4 in FIG.
3;
[0036] FIG. 5 is a sectional view illustrating a second embodiment
of the composite heat-dissipating module in accordance with the
present invention;
[0037] FIG. 6 is a perspective view, partly exploded, of a third
embodiment of the composite heat-dissipating module in accordance
with the present invention;
[0038] FIG. 7 is a perspective view, partly exploded, of a fourth
embodiment of the composite heat-dissipating module in accordance
with the present invention; and
[0039] FIG. 8 is a sectional view, taken along plane 8-8 in FIG. 7,
of the composite heat-dissipating module in FIG. 7 after
assembly.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0040] Referring to FIGS. 2 and 2A, a first embodiment of a
composite heat-dissipating module in accordance with the present
invention comprises a heat-dissipating plate 1, a lid 2, an
impeller 3, a pump 4, and at least one driving unit 5. The
composite heat-dissipating module is used to cool at least one
object 61, 62, 63 by air cooling and/or liquid cooling. The
composite heat-dissipating module can be mounted in a notebook type
or desktop type computer or in a casing for other electric devices.
The objects 61, 62, and 63 to be dissipated may be high-power
integrated circuits, displays, or electric components, such as
CPUs, liquid crystal displays, or the processing chips for display
cards, drawing cards, or other interface cards. Nevertheless, the
composite heat-dissipating module in accordance with the present
invention is not limited to the above-mentioned fields, and the
objects 61, 62, and 63 to be dissipated are not limited to the
above. The composite heat-dissipating module in accordance with the
present invention can be used in any device that requires
heat-dissipation.
[0041] Referring to FIGS. 2, 2A, 3, and 4, the heat-dissipating
plate 1 in the first embodiment is made of a material with
excellent thermal conductivity, such as aluminum, copper, and
alloys thereof. The heat-dissipating plate 1 includes at least one
heat-dissipating section A, B, a first receiving section 10, a
plurality of fins 11, a plurality of channels 12, a circulating
pipe 13, and a second receiving section 14. The heat-dissipating
sections A and B are contiguous to at least one side of the first
receiving section 10. The heat-dissipating sections A and B are
thermally connected to the at least one object 61, 62, 63 to be
dissipated. The first receiving section 10 is a recessed portion in
a first side of the heat-dissipating plate 1 for receiving the
impeller 3. The fins 11 and the channels 12 are alternately
disposed on the heat-dissipating section A and the heat-dissipating
section B for increasing the area for heat exchange. An end of each
of the fin 11 and the channels 12 is in communication with the
first receiving section 10.
[0042] Still referring to FIGS. 2, 2A, 3, and 4, the circulating
pipe 13 is mounted inside the heat-dissipating plate 1 or in
contact with a second side of the heat-dissipating plate 1 that is
opposite to the first side with the first receiving section 10. The
circulating pipe 13 is winding in the heat-dissipating sections A
and B and allows a liquid coolant to circulate between the
heat-dissipating sections A and B and the pump 4 mounted in the
second receiving section 14, thereby increasing the heat-exchange
area for the liquid coolant. The second receiving section 14 is a
recessed portion in the second side of the heat-dissipating plate 1
for receiving the pump 4. By providing the first and second
receiving portions 10 and 14 on opposite first and second sides of
the heat-dissipating plate 1, the impeller 3 and the pump 4 are
superimposed one on the other.
[0043] Still referring to FIGS. 2, 2A, 3, and 4, the lid 2 in the
first embodiment is engaged on the first receiving section 10. The
lid 2 includes an air inlet 21 facing the impeller 3, allowing the
impeller 3 to suck air via the air inlet 21 for the purposes of air
cooling.
[0044] Still referring to FIGS. 2, 2A, 3, and 4, the impeller 3 in
the first embodiment includes a hub 31, a plurality of vanes 32,
and a shaft 33. The hub 31 is substantially an inverted bowl. The
vanes 32 are formed on an outer circumference of the hub 31 at
regular intervals. The vanes 32 may be of blower type or axial flow
type. An end of the shaft 32 is fixed to a center of an inner face
of the hub 31. The other end of the shaft 32 is rotatably mounted
in a bottom wall of the first receiving section 10.
[0045] Still referring to FIGS. 2, 2A, 3, and 4, the pump 4 in the
first embodiment is of vane type, gear type, or swirl type. The
pump 4 includes a rotational board 41, a plurality of driving
boards 42, and a shaft 43. The rotational board 41 is an annular
board of a vane pump or a gear of a gear pump. The driving boards
41 are vanes of a vane pump or teeth of a gear pump for driving
liquid coolant. An end of the shaft 43 is fixed to a center of the
rotational board 41. The other end of the shaft 43 is rotatably
mounted to the bottom wall of the second receiving section 14.
[0046] Still referring to FIGS. 2, 2A, 3, and 4, the driving unit 5
in the first embodiment is preferably a motor such as an axial-flow
motor or a radial-flow motor. The driving unit 5 includes a stator
51 and a rotational portion 52. The stator 51 is fixed in the first
receiving section 10 and housed by the impeller 3. The stator 51 is
preferably a motor stator and includes at least one pole plate (not
labeled) and at least one coil (not labeled). Electric current is
supplied to the coil to create alternating field. The rotational
portion 52 is preferably an annular magnet mounted to an inner
circumference of the hub 31. Thus, the rotational portion 52 senses
the alternating field and drives the impeller 3 to turn. In this
embodiment, a single driving unit (motor) 5 is provided, and the
shaft 33 of the impeller 3 and the shaft 43 of the pump 4 are made
integral as a single, common shaft. Namely, the single, common
shaft extends through the heat-dissipating plate 1, with two ends
of the common shaft respectively located in the first and second
receiving sections 10 and 14. Thus, the driving unit (motor) 5
drives the impeller 3 and the pump 4 to turn synchronously.
Alternatively, two separate driving units 5 can be respectively
provided in the first and second receiving sections 10 and 14 for
independently driving the impeller 3 and the pump 4.
[0047] Referring to FIGS. 2A and 4, in use, the heat-dissipating
plate 1 installed, with the heat-dissipating section A in contact
with the object 61 and with the heat-dissipating section B in
contact with the objects 62 and 63. When the object 61 generates
heat during operation, the driving unit (motor) 5 is turned on to
synchronously drive the impeller 3 and the pump 4 via the shafts 33
and 43. The vanes 32 of the impeller 3 drive air from the air inlet
21 into the channels 12 of the heat-dissipating sections A and B,
providing the heat-dissipating sections A and B with air cooling.
Meanwhile, the drive boards 42 of the pump 4 drives the liquid
coolant to circulate in the circulating pipe 13 and the second
receiving section 14 to providing the heat-dissipating sections A
and B with liquid cooling.
[0048] As illustrated in FIG. 4, the impeller 3 and the pump 4
provide dual heat-dissipating effect (air/liquid cooling) while
saving the space for assembly, simplifying the structure, and
reducing energy loss by superimposing the impeller 13 on the pump
4. This allows miniaturization of the electric device containing
the objects 61, 62, and 63 to be dissipated. The impeller 3 is
preferably superimposed on the pump 4. Nevertheless, the pump 4 can
be superimposed on the impeller 3 according to product needs.
[0049] FIG. 5 shows a second embodiment of the composite
heat-dissipating module in accordance with the present invention.
Compared to the first embodiment, the shaft 33 of the impeller 3 in
this embodiment is separate from the shaft 43 of the pump 4. More
specifically, the shaft 33 is rotatably mounted to the bottom wall
of the first receiving section 10 whereas the shaft 43 is rotatably
mounted to the bottom wall of the second receiving section 14.
Further, the driving unit 5 is a single-phase motor. The stator 51
of the driving unit 5 includes at least one flat coil (not
labeled). The rotational portion 52 mounted on the inner
circumference of the hub 41 of the impeller 3 is a plate-like
permanent magnet. The driving unit 5 includes a further rotational
portion 53 that is also a plate-like permanent magnet mounted to a
surface of the rotational board 41 of the pump 4. After assembly,
the rotational portion (permanent magnet) 52 faces a surface of the
stator 51 of the driving unit (single-phase motor) 5 whereas the
rotational portion (permanent magnet) 53 faces another surface of
the stator 51 of the driving unit (single-phase motor) 5.
[0050] By this arrangement, when alternating field is created by
supplying electric current to the driving unit (single phase motor)
5, the rotational portion 52 of the impeller 3 senses the
alternating field and drives the impeller 3 in the first receiving
section 10 to turn for driving air for air cooling purposes.
Meanwhile, the rotational portion 53 of the pump 4 indirectly
senses the alternating field and drives the pump 4 to turn in the
second receiving section 14 for driving the liquid coolant for
liquid cooling purposes. The second embodiment as a whole not only
provides the advantages of dual heat-dissipating effect, saving the
space for assembly, simplifying the structure, and reducing energy
loss but also prevents leakage of the liquid coolant in the second
receiving section 14 via the pivotal joint of the shaft 43. The
liquid cooling effect is further enhanced and the life of liquid
cooling arrangement is prolonged.
[0051] FIG. 6 shows a third embodiment of the composite
heat-dissipating module in accordance with the present invention.
Compared to the first and second embodiments, the impeller 3 and
the pump 4 in this embodiment are placed side by side. Further, a
transmission device is provided for the driving unit 5. The
transmission device may be gear(s) or belt(s) arrangement. More
specifically, the first receiving section 10 and the second
receiving section 14 are placed side by side on the same side of
the heat-dissipating plate 1. The impeller 3 further includes a
first transmission plate 34 and a plurality of ribs 35. The first
transmission plate 34 is annular and connected to the outer
circumference of the hub 31 via the ribs 35. The vanes 32 are
arranged on a surface of the first transmission plate 34. The pump
4 further includes a casing 40 and a second transmission plate 44.
The casing 40 is used to seal the pump 4. The casing 40 is
supported by the circulating pipe 13 or other support (not shown)
so as to be suspended in the second receiving section 14. The shaft
43 of the pump 4 extends out of the casing 40. The second
transmission plate 44 is rotatably mounted to an outer side of the
casing 40 and has a center coupled with an end of the shaft 43.
[0052] As illustrated in FIG. 6, the first and second transmission
plates 43 and 44 act as the transmission device in the third
embodiment. In a case that gears are used as the transmission
device, each of the first and second transmission plates 43 and 44
includes teeth (not shown) on a periphery thereof for meshing
purposes. Thus, the first transmission plate 34 drives the second
transmission plate 44, allowing synchronous rotation of the first
and second transmission plates 34 and 44. Alternatively, when
belt(s) is(are) used as the transmission device, the first and
second transmission plates 34 and 44 includes an annular groove in
a periphery thereof, and at least one belt is mounted in the
annular grooves so that the first transmission plate 34 drives the
second transmission plate 44, allowing synchronous rotation of the
first and second transmission plates 34 and 44. The third
embodiment as a whole not only provides the advantages of dual
heat-dissipating effect, saving the space for assembly, simplifying
the structure, and reducing energy loss but also provides design
flexibility by changing the positional relationship and
transmission relationship between the impeller 3 and the pump
4.
[0053] FIGS. 7 and 8 show a fourth embodiment of the composite
heat-dissipating module in accordance with the present invention.
Compared to the first and second embodiments in which the impeller
3 and the pump 4 are respectively mounted in the first and second
receiving sections 10 and 14, the impeller 3 and the pump 4 of this
embodiment are firstly mounted to a base 7 (side by side or one
superimposed on the other), and at least a side of the base 7 is
then attached to the heat-dissipating sections A and B of the
heat-dissipating plate 1.
[0054] More specifically, the base 7 and the heat-dissipating plate
1 are separate from each other. The base 7 includes a first
receiving section 70 and a second receiving section 71. Preferably,
the first receiving section 70 and the second receiving section 71
are respectively located on two sides of the base 7. Alternatively,
the first receiving section 70 and the second receiving section 71
are located on the same side of the base 7 and in communication
with each other (see FIG. 6). The impeller 3 and the driving unit 5
are mounted in the first receiving section 70 whereas the pump 4 is
mounted in the second receiving section 71. The circulating pipe 13
is mounted inside the heat-dissipating plate 1 or in contact with
the other side of the heat-dissipating plate 1. The circulating
pipe 13 is in communication with the second receiving section 71.
The base 7 can be fixed to the heat-dissipating sections A and B by
welding, screwing, buckling, gluing, etc.
[0055] Referring to FIGS. 7 and 8, the fourth embodiment as a whole
not only provides the advantages of dual heat-dissipating effect,
saving the space for assembly, simplifying the structure, and
reducing energy loss but also provides design flexibility by
allowing separate designs of the specifications of the impeller 3
and the pump 4. Further, referring to FIGS. 2 through 8, the
components in the structures of the first through fourth
embodiments of the present invention can be selected and combined
according to needs.
[0056] While the principles of this invention have been disclosed
in connection with specific embodiments, it should be understood by
those skilled in the art that these descriptions are not intended
to limit the scope of the invention, and that any modification and
variation without departing the spirit of the invention is intended
to be covered by the scope of this invention defined only by the
appended claims.
* * * * *