US20060051222A1 - Miniature pump for liquid cooling system - Google Patents
Miniature pump for liquid cooling system Download PDFInfo
- Publication number
- US20060051222A1 US20060051222A1 US11/047,867 US4786705A US2006051222A1 US 20060051222 A1 US20060051222 A1 US 20060051222A1 US 4786705 A US4786705 A US 4786705A US 2006051222 A1 US2006051222 A1 US 2006051222A1
- Authority
- US
- United States
- Prior art keywords
- liquid
- pump
- impeller
- miniature pump
- enclosed space
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0666—Units comprising pumps and their driving means the pump being electrically driven the motor being of the plane gap type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0606—Canned motor pumps
- F04D13/064—Details of the magnetic circuit
Definitions
- the present invention relates generally to pumps, and more particularly to a miniature pump for a liquid cooling system for cooling an electronic package.
- a typical liquid cooling system comprises a heat absorbing unit for absorbing heat from a heat source, and a heat dissipating unit which is filled with liquid.
- the liquid conducts heat exchange with the heat absorbing unit, thereby taking away the heat of the heat absorbing unit as the liquid is circulated.
- a miniature pump is used to circulate the liquid.
- the pump comprises an inlet for inputting liquid and an outlet for outputting liquid.
- the inlet and the outlet are in communication with an inner space of the pump where an impeller having blades is installed.
- the liquid is circulated in the liquid cooling system by spinning of the impeller.
- a problem existing in the conventional liquid cooling system is that in operation the liquid entering the inner space via the inlet directly strikes the blades, which causes a flow turbulence in the inner space of the pump. This flow turbulence slows down the circulation of the liquid and therefore lowers the cooling efficiency of the whole system.
- the present invention is directed to a miniature pump which can eliminate the flow turbulence therein.
- a miniature pump in accordance with the present invention comprises a pump casing and a liquid circulating unit received in the pump casing.
- the pump casing defines an enclosed space for storing liquid therein.
- a spacing plate is arranged in the pump casing to divide the enclosed space into a first chamber and a second chamber.
- the spacing plate defines a through opening at a center portion thereof to make the first and second chambers intercommunicate.
- An inlet and an outlet are formed on the pump casing respectively communicating with the first and second chambers.
- the liquid circulating unit is mounted in the second chamber for circulating the liquid in a liquid cooling system.
- FIG. 1 is an exploded, isometric view of a miniature pump according to a preferred embodiment of the present invention
- FIG. 2 is an assembled view of the miniature pump of FIG. 1 ;
- FIG. 3 is a cross sectional view of the miniature pump of FIG. 2 , but viewed from another aspect;
- FIG. 4 is a cross sectional view of a miniature pump according to an alternative embodiment of the present invention.
- a miniature pump in accordance with a preferred embodiment of the present invention comprises a pump casing 1 having an inner space, and a liquid circulating unit 2 and a motor driving unit 3 received in the inner space of the pump casing 1 .
- the pump casing 1 comprises a hollow main body 11 , a top cover 10 hermetically attached to a top end 101 of the main body 11 , and a bottom cover 19 attached to a bottom end 102 of the main body 11 .
- a sealing ring 108 is disposed between the main body 11 and the top cover 10 to prevent liquid leakage.
- the top cover 10 forms an annular groove 106 at a bottom edge thereof for receiving a sealing ring 108 therein.
- An inlet 104 is formed on the top cover 10 for allowing liquid to enter the pump casing 1 .
- An outlet 110 is formed on the main body 11 for allowing the liquid to exit the pump casing 1 .
- the main body 11 transversely forms an inner partition wall 14 .
- This partition wall 14 effectively divides the inner space of the main body 11 into a top space 15 and a bottom space 18 .
- a spacing plate 12 is transversely arranged in the main body 11 as a guide means.
- the spacing plate 12 further divides the top space 15 of the main body 11 into a first chamber 16 between the spacing plate 12 and the top cover 10 , and a second chamber 17 between the partition wall 14 and the spacing plate 12 .
- a positioning hole 120 is defined in the spacing plate 12 at a center thereof.
- a plurality of through openings 122 is defined in the spacing plate 12 adjacent the positioning hole 120 to make the first and second chambers 16 , 17 intercommunicate.
- the liquid circulating unit 2 is mounted in the second chamber 17 of the pump casing 1 .
- the liquid circulating unit 2 comprises a shaft 20 mounted between the partition wall 14 and the spacing plate 12 , a bearing 22 pivotably attached to the shaft 20 and an impeller 26 attached to the bearing 22 .
- the bearing 22 may be integrated with the impeller 26 .
- the impeller 26 comprises a plurality of blades extending from a center portion to an outer edge portion of the impeller 26 .
- a first permanent magnet 260 is embedded in the impeller 26 .
- the first permanent magnet 260 has a ring flat body magnetized as having a plurality of alternating N and S poles along the ring body.
- the partition wall 14 forms a shaft support 140 having a blind hole (not labeled) receiving a bottom end of the shaft 20 therein, and a top end of the shaft 20 engages in the positioning hole 120 of the spacing plate 12 .
- a pair of locking rings 24 is attached to the shaft 20 near opposite ends thereof respectively for limiting axial movement of the shaft 20 .
- the motor driving unit 3 is received in the bottom space of the pump casing 1 .
- the motor driving unit 3 is positioned on the bottom cover 19 and comprises a motor having a rotor 34 and a printed circuit board 31 for controlling spinning of the rotor 34 .
- a second permanent magnet 340 is attached to the rotor 34 for spinning therewith, corresponding to the first permanent magnet 260 with a flux gap formed therebetween.
- the second permanent magnet 340 also has a ring flat body magnetized as having a plurality of alternating N and S poles along the ring body. An axial flux gap is cooperatively created between the first and second permanent magnets 260 , 340 .
- the rotor 34 is covered with a layer of magnetically conductive material; therefore the second permanent magnet 340 is attached to the rotor 34 by magnetic attractive force.
- Alternative means such as adhesive may be used to attach the second permanent magnet 340 to the rotor 34 .
- the rotor 34 of the motor of the motor driving unit 3 rotates to drive the second permanent magnet 340 to rotate therewith.
- the first permanent magnet 260 is driven to rotate with second permanent magnet 340 by the attractive force therebetween.
- the impeller 26 thus rotates with the first permanent magnet 260 to circulate the liquid in the liquid cooling system.
- the liquid enters the first chamber 16 via the inlet 104 , and then enters the second chamber 17 via the nearly centrally defined through openings 122 .
- the liquid flowing into the second chamber 17 thus strikes the center portion of the impeller 26 and is then evenly distributed to an outer edge of the impeller 26 .
- the liquid is finally discharged out of the second chamber 17 via the outlet 110 by a centrifugal force caused by rotation of the impeller 26 . Since the liquid does not directly strike the blades of the impeller 26 that are near the outer edge thereof, the flow turbulence is eliminated accordingly.
- the liquid circulating efficiency of the liquid cooling system is thus enhanced.
- FIG. 4 a miniature pump according to an alternative embodiment of the present invention is shown. Most parts of the miniature pump of the alternative embodiment are the same as the preferred embodiment. Main differences are that in the alternative embodiment the first and second permanent magnets 260 ′, 340 are both cylindrical while in the preferred embodiment they are flat; a radial flux gap is thus formed between the first and second permanent magnets 260 ′, 340 ′. Another difference is that the spacing plate 12 ′ downwardly forms a protrusion 120 ′ for engaging with the top end of the shaft 20 ′, thereby limiting axial movement of the shaft 20 ′.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A miniature pump in accordance with the present invention comprises a pump casing (1) and a liquid circulating unit (2) received in the pump casing. The pump casing defines an enclosed space (15) for storing liquid therein. A spacing plate (12) is arranged in the pump casing to divide the enclosed space into a first chamber (16) and a second chamber. The spacing plate defines a through opening (122) at a center portion thereof to make the first and second chambers communicate with each other. An inlet (104) and an outlet (110) are formed on the pump casing respectively communicating with the first and second chambers. The liquid circulating unit is mounted in the second chamber for circulating the liquid in a liquid cooling system.
Description
- This application is related to a co-pending U.S. patent application entitled “MINIATURE PUMP FOR LIQUID COOLING SYSTEM”, filed Dec. 17, 2004, and assigned Ser. No. 11/015,488, with the same assignee as the instant application. The disclosure of the above-identified application is incorporated herein by reference.
- The present invention relates generally to pumps, and more particularly to a miniature pump for a liquid cooling system for cooling an electronic package.
- With continuing development of the computer technology, electronic packages such as the CPUs are generating more and more heat that is required to be dissipated immediately. The conventional heat dissipating devices such as combined heat sinks and fans are not competent for dissipating so much heat any more. Liquid cooling systems have thus been increasingly used in computer technology to cool these electronic packages.
- A typical liquid cooling system comprises a heat absorbing unit for absorbing heat from a heat source, and a heat dissipating unit which is filled with liquid. The liquid conducts heat exchange with the heat absorbing unit, thereby taking away the heat of the heat absorbing unit as the liquid is circulated. Typically, a miniature pump is used to circulate the liquid.
- The pump comprises an inlet for inputting liquid and an outlet for outputting liquid. The inlet and the outlet are in communication with an inner space of the pump where an impeller having blades is installed. The liquid is circulated in the liquid cooling system by spinning of the impeller. A problem existing in the conventional liquid cooling system is that in operation the liquid entering the inner space via the inlet directly strikes the blades, which causes a flow turbulence in the inner space of the pump. This flow turbulence slows down the circulation of the liquid and therefore lowers the cooling efficiency of the whole system.
- For the foregoing reasons, there is a need for eliminating such a flow turbulence in the pump.
- The present invention is directed to a miniature pump which can eliminate the flow turbulence therein.
- A miniature pump in accordance with the present invention comprises a pump casing and a liquid circulating unit received in the pump casing. The pump casing defines an enclosed space for storing liquid therein. A spacing plate is arranged in the pump casing to divide the enclosed space into a first chamber and a second chamber. The spacing plate defines a through opening at a center portion thereof to make the first and second chambers intercommunicate. An inlet and an outlet are formed on the pump casing respectively communicating with the first and second chambers. The liquid circulating unit is mounted in the second chamber for circulating the liquid in a liquid cooling system.
- Other objects, advantages and novel features of the present invention will be drawn from the following detailed description of the preferred embodiments of the present invention with attached drawings, in which:
-
FIG. 1 is an exploded, isometric view of a miniature pump according to a preferred embodiment of the present invention; -
FIG. 2 is an assembled view of the miniature pump ofFIG. 1 ; -
FIG. 3 is a cross sectional view of the miniature pump ofFIG. 2 , but viewed from another aspect; and -
FIG. 4 is a cross sectional view of a miniature pump according to an alternative embodiment of the present invention. - Referring to
FIGS. 1 and 2 , a miniature pump in accordance with a preferred embodiment of the present invention comprises apump casing 1 having an inner space, and a liquid circulatingunit 2 and amotor driving unit 3 received in the inner space of thepump casing 1. - The
pump casing 1 comprises a hollowmain body 11, atop cover 10 hermetically attached to atop end 101 of themain body 11, and abottom cover 19 attached to abottom end 102 of themain body 11. Asealing ring 108 is disposed between themain body 11 and thetop cover 10 to prevent liquid leakage. Thetop cover 10 forms anannular groove 106 at a bottom edge thereof for receiving asealing ring 108 therein. Aninlet 104 is formed on thetop cover 10 for allowing liquid to enter thepump casing 1. Anoutlet 110 is formed on themain body 11 for allowing the liquid to exit thepump casing 1. - The
main body 11 transversely forms aninner partition wall 14. Thispartition wall 14 effectively divides the inner space of themain body 11 into atop space 15 and abottom space 18. - Referring also to
FIG. 3 , aspacing plate 12 is transversely arranged in themain body 11 as a guide means. Thespacing plate 12 further divides thetop space 15 of themain body 11 into afirst chamber 16 between thespacing plate 12 and thetop cover 10, and asecond chamber 17 between thepartition wall 14 and thespacing plate 12. Apositioning hole 120 is defined in thespacing plate 12 at a center thereof. A plurality of throughopenings 122 is defined in thespacing plate 12 adjacent thepositioning hole 120 to make the first andsecond chambers - The liquid circulating
unit 2 is mounted in thesecond chamber 17 of thepump casing 1. The liquid circulatingunit 2 comprises ashaft 20 mounted between thepartition wall 14 and thespacing plate 12, abearing 22 pivotably attached to theshaft 20 and animpeller 26 attached to thebearing 22. Alternatively, thebearing 22 may be integrated with theimpeller 26. Theimpeller 26 comprises a plurality of blades extending from a center portion to an outer edge portion of theimpeller 26. A firstpermanent magnet 260 is embedded in theimpeller 26. The firstpermanent magnet 260 has a ring flat body magnetized as having a plurality of alternating N and S poles along the ring body. For positioning theshaft 20, thepartition wall 14 forms ashaft support 140 having a blind hole (not labeled) receiving a bottom end of theshaft 20 therein, and a top end of theshaft 20 engages in thepositioning hole 120 of thespacing plate 12. A pair oflocking rings 24 is attached to theshaft 20 near opposite ends thereof respectively for limiting axial movement of theshaft 20. - The
motor driving unit 3 is received in the bottom space of thepump casing 1. Themotor driving unit 3 is positioned on thebottom cover 19 and comprises a motor having arotor 34 and a printedcircuit board 31 for controlling spinning of therotor 34. A secondpermanent magnet 340 is attached to therotor 34 for spinning therewith, corresponding to the firstpermanent magnet 260 with a flux gap formed therebetween. Like the firstpermanent magnet 260, the secondpermanent magnet 340 also has a ring flat body magnetized as having a plurality of alternating N and S poles along the ring body. An axial flux gap is cooperatively created between the first and secondpermanent magnets rotor 34 is covered with a layer of magnetically conductive material; therefore the secondpermanent magnet 340 is attached to therotor 34 by magnetic attractive force. Alternative means such as adhesive may be used to attach the secondpermanent magnet 340 to therotor 34. - In operation, the
rotor 34 of the motor of themotor driving unit 3 rotates to drive the secondpermanent magnet 340 to rotate therewith. The firstpermanent magnet 260 is driven to rotate with secondpermanent magnet 340 by the attractive force therebetween. Theimpeller 26 thus rotates with the firstpermanent magnet 260 to circulate the liquid in the liquid cooling system. - In the present invention, the liquid enters the
first chamber 16 via theinlet 104, and then enters thesecond chamber 17 via the nearly centrally defined throughopenings 122. The liquid flowing into thesecond chamber 17 thus strikes the center portion of theimpeller 26 and is then evenly distributed to an outer edge of theimpeller 26. The liquid is finally discharged out of thesecond chamber 17 via theoutlet 110 by a centrifugal force caused by rotation of theimpeller 26. Since the liquid does not directly strike the blades of theimpeller 26 that are near the outer edge thereof, the flow turbulence is eliminated accordingly. The liquid circulating efficiency of the liquid cooling system is thus enhanced. - Referring to
FIG. 4 , a miniature pump according to an alternative embodiment of the present invention is shown. Most parts of the miniature pump of the alternative embodiment are the same as the preferred embodiment. Main differences are that in the alternative embodiment the first and secondpermanent magnets 260′, 340 are both cylindrical while in the preferred embodiment they are flat; a radial flux gap is thus formed between the first and secondpermanent magnets 260′, 340′. Another difference is that thespacing plate 12′ downwardly forms aprotrusion 120′ for engaging with the top end of theshaft 20′, thereby limiting axial movement of theshaft 20′. - It is understood that the invention may be embodied in other forms without departing from the spirit thereof. The above-described examples and embodiments are to be considered in all respects as illustrative and not restrictive, and the invention is not to be limited to the details given above.
Claims (20)
1. A miniature pump for use with a liquid cooling system, comprising:
a pump casing defining an enclosed space therein;
a spacing plate arranged in the pump casing and dividing said enclosed space into a first chamber and a second chamber, the spacing plate defining a through opening at a center portion thereof to make the first and second chambers communicate with each other;
an inlet formed on the pump casing communicating with the first chamber;
an outlet formed on the pump casing communicating with the second chamber; and
a liquid circulating unit received in said second chamber for circulating the liquid in the liquid cooling system.
2. The miniature pump as described in claim 1 , wherein the pump casing comprises a hollow main body transversely forming a partition wall therein and a top cover hermetically attached to a top end of the main body, and said enclosed space is formed between the partition wall and the top cover.
3. The miniature pump as described in claim 2 , wherein the liquid circulating unit comprises a shaft mounted between the partition wall and the spacing plate, and an impeller rotatably attached to the shaft.
4. The miniature pump as described in claim 3 , wherein the partition wall forms a shaft support defining a blind hole receiving an end of the shaft, and the spacing plate defines a positioning hole at a center thereof receiving an opposite end of the shaft therein.
5. The miniature pump as described in claim 4 , wherein the liquid circulating unit comprises a pair of locking rings attached to the shaft near the opposite ends thereof to limit axial movement of the shaft.
6. The miniature pump as described in claim 3 , wherein the partition wall forms a shaft support defining a blind hole receiving an end of the shaft, and the spacing plate forms a protrusion for engaging with an opposite end of the shaft to limit axial movement of the shaft.
7. The miniature pump as described in claim 3 , further comprising a motor driving unit located outside said enclosed space to drive the impeller to rotate.
8. The miniature pump as described in claim 7 , wherein the impeller carries a first permanent magnet, the motor driving unit comprises a motor having a rotor, and a second permanent magnet is attached to the rotor corresponding to the first permanent magnet.
9. The miniature pump as described in claim 8 , wherein the first permanent magnet is embedded in the impeller.
10. The miniature pump as described in claim 8 , wherein each of the first and second permanent magnets comprises a ring flat body, and an axial flux gap is created between the first and second permanent magnets.
11. The miniature pump as described in claim 8 , wherein each of the first and second permanent magnets comprises a cylindrical body, and a radial flux gap is created between the first and second permanent magnets.
12. The miniature pump as described in claim 7 , wherein the pump casing further comprises a bottom cover attached to a bottom end of the main body, and the motor driving unit is positioned between the partition plate and the bottom cover.
13. A miniature pump for use with a liquid cooling system, comprising:
a pump casing defining therein an enclosed space with an inlet and an outlet in communication with the enclosed space;
a spacing plate arranged in the pump casing to divide the enclosed space into first and second chambers respectively communicating with the inlet and outlet;
a liquid circulating unit received in the second chamber and comprising an impeller for circulating liquid in the liquid cooling system; and
the spacing plate defining therein a through opening aligned with a center portion of the impeller for allowing the liquid in the first chamber to enter the second chamber.
14. The miniature pump as described in claim 13 , wherein the impeller comprises a plurality of blades extending from the center portion to an outer edge thereof.
15. The miniature pump as described in claim 13 , wherein the pump casing is generally cylindrical and the enclosed space is formed at one end of the pump casing.
16. The miniature pump as described in claim 15 , further comprising a motor driving unit received in an opposite end of the pump casing for driving the impeller of the liquid circulating unit to rotate.
17. The miniature pump as described in claim 16 , wherein the impeller carries a first permanent magnet, the motor driving unit comprises a rotor and a second permanent magnet attached to the rotor for rotating therewith, and the second permanent magnet corresponds to the first permanent magnet with a flux gap formed therebetween.
18. The miniature pump as described in claim 16 , wherein the pump casing comprises a hollow main body transversely forming a partition wall, a top cover hermetically attached to said one end of the main body to form the enclosed space between the top cover and the partition wall, and a bottom cover attached to said opposite end of the main body to form a receiving space between the partition wall and the bottom cover to receive the motor driving unit.
19. A method for operating a liquid cooling system, comprising:
providing a casing having an enclosed space for receiving cooling liquid of said liquid cooling system therein;
providing an inlet and an outlet to said casing in communication with said enclosed space for said liquid to move into/out said casing;
driving said liquid in said enclosed space to circulate through said inlet and outlet via an impeller; and
guiding liquid flow moving into said casing from said inlet so as to have said liquid flow movable toward a predetermined portion of said impeller in order for lessening disturbance of said liquid flow on driving of said impeller.
20. The method as described in claim 19 , wherein a spacing plate is used to guide said liquid flow moving slowly toward a central portion of said impeller in said guiding step.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA2004100514529A CN1746468A (en) | 2004-06-09 | 2004-06-09 | The liquid-cooled radiating system micropump |
CN200410051452.9 | 2004-09-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060051222A1 true US20060051222A1 (en) | 2006-03-09 |
Family
ID=35460724
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/015,488 Abandoned US20050276703A1 (en) | 2004-06-09 | 2004-12-17 | Miniature pump for liquid cooling system |
US11/047,867 Abandoned US20060051222A1 (en) | 2004-06-09 | 2005-02-01 | Miniature pump for liquid cooling system |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/015,488 Abandoned US20050276703A1 (en) | 2004-06-09 | 2004-12-17 | Miniature pump for liquid cooling system |
Country Status (2)
Country | Link |
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US (2) | US20050276703A1 (en) |
CN (1) | CN1746468A (en) |
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US20050186093A1 (en) * | 2004-02-25 | 2005-08-25 | Ruei-Fu Cheng | Pump of liquid based cooling device |
US20070000268A1 (en) * | 2005-06-29 | 2007-01-04 | Crocker Michael T | Systems for integrated pump and reservoir |
US20080075611A1 (en) * | 2006-09-21 | 2008-03-27 | Foxconn Technology Co., Ltd. | Miniature liquid cooling device having an integral pump therein |
US20080309175A1 (en) * | 2007-06-12 | 2008-12-18 | Robert Telakowski | Electric motor cooling |
US20090155099A1 (en) * | 2007-12-18 | 2009-06-18 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Pump for liquid cooling system |
US20130299139A1 (en) * | 2009-12-15 | 2013-11-14 | Stephen Mounioloux | Radiator with integrated pump for actively cooling electronic devices |
US8668476B1 (en) * | 2007-03-30 | 2014-03-11 | Coolit Systems Inc. | Pump expansion vessel |
US10048008B1 (en) * | 2009-12-15 | 2018-08-14 | Rouchon Industries, Inc. | Radiator with integrated pump for actively cooling electronic devices |
US10834850B2 (en) * | 2019-01-23 | 2020-11-10 | Dongguan Jianxin Electronic Technology Co., Ltd. | Integrated radiator provided with water chamber, control panel and water pump |
US11015608B2 (en) | 2018-12-10 | 2021-05-25 | Hewlett Packard Enterprise Development Lp | Axial flow pump with reduced height dimension |
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US11248848B1 (en) * | 2020-12-09 | 2022-02-15 | Huizhou Hanxu Hardware Plastic Technology Co., Ltd. | Liquid-cooling heat dissipation apparatus |
US20220381516A1 (en) * | 2021-05-28 | 2022-12-01 | Huizhou Hanxu Hardware Plastic Technology Co., Ltd. | Liquid-cooling radiator |
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DE102005039557A1 (en) * | 2005-08-22 | 2007-03-01 | Robert Bosch Gmbh | rotary pump |
TWI363141B (en) * | 2006-01-11 | 2012-05-01 | Delta Electronics Inc | Water pump and bearing thereof |
US20070224059A1 (en) * | 2006-03-23 | 2007-09-27 | Cheng-Tien Lai | Miniature pump for liquid cooling system |
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US3489095A (en) * | 1968-03-19 | 1970-01-13 | Gunther Eheim | Electric motor-pump-filter combination particularly for fish tank circulator and filter units |
US6506034B1 (en) * | 1999-07-22 | 2003-01-14 | Robert Bosch Gmbh | Liquid pump with a claw pole stator |
US6746212B2 (en) * | 2002-03-22 | 2004-06-08 | Intel Corporation | High efficiency pump for liquid-cooling of electronics |
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US20070000268A1 (en) * | 2005-06-29 | 2007-01-04 | Crocker Michael T | Systems for integrated pump and reservoir |
US7543457B2 (en) * | 2005-06-29 | 2009-06-09 | Intel Corporation | Systems for integrated pump and reservoir |
US7753662B2 (en) * | 2006-09-21 | 2010-07-13 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Miniature liquid cooling device having an integral pump therein |
US20080075611A1 (en) * | 2006-09-21 | 2008-03-27 | Foxconn Technology Co., Ltd. | Miniature liquid cooling device having an integral pump therein |
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CN1746468A (en) | 2006-03-15 |
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