CN1937900A - Liquid-cooled radiating system - Google Patents
Liquid-cooled radiating system Download PDFInfo
- Publication number
- CN1937900A CN1937900A CNA2005100374956A CN200510037495A CN1937900A CN 1937900 A CN1937900 A CN 1937900A CN A2005100374956 A CNA2005100374956 A CN A2005100374956A CN 200510037495 A CN200510037495 A CN 200510037495A CN 1937900 A CN1937900 A CN 1937900A
- Authority
- CN
- China
- Prior art keywords
- liquid
- radiating system
- cooled radiating
- heat
- working fluid
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2321/00—Details of machines, plants or systems, using electric or magnetic effects
- F25B2321/002—Details of machines, plants or systems, using electric or magnetic effects by using magneto-caloric effects
- F25B2321/0021—Details of machines, plants or systems, using electric or magnetic effects by using magneto-caloric effects with a static fixed magnet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Abstract
This invention provides a liquid-cooling system, which includes: an endothermic unit; a cooling unit; the joint pipe which links the stated endothermic unit and passes through the cooling unit; the work liquid which flows in the stated endothermic unit and the joint pipe. The work liquid includes the liquid medium and magnetic powder which disperse in liquid medium. The liquid-cooling system at least includes magnetic field devices to generate the magnetic field, the endothermic unit and the cooling unit are located in this magnetic field. The liquid-cooling system of this invention controls the magnetic powder's flow of work liquid and makes the work liquid on disorderly condition, it increases work liquid's thermal conductivity and improves cooling effect of liquid-cooling system.
Description
[technical field]
The present invention relates to hot biography field, relate in particular to a kind of liquid-cooled radiating system.
[background technology]
Electronic technology develops rapidly in recent years, and the running frequency and the speed of electronic component constantly promote.But the heat of electronic component generation simultaneously is more and more, and temperature is also more and more higher, and performance and stability during the operation of serious threat electronic component for guaranteeing electronic component energy operate as normal, need electronic component is carried out efficiently radiates heat.Present air-cooled cooling system applies in the electronic element radiating widely, and it generally is by radiating fin the heat that heater element produces to be conducted, and takes away heat with the thermal convection of fan forced air again.Though air-cooled cooling system is simple in structure and electronic component is better compatible at present, and with low cost, but because of its radiating principle is the air thermal convection, and the heat conduction efficiency of air is very low, and heat-sinking capability is restricted, and is difficult to satisfy the radiating requirements of high-frequency high-speed electronic component.Liquid-cooled radiating system is fit to solve the heat dissipation problem that present electronic device is derived because of performance boost with characteristics such as its heat radiation are efficient, quick.
Liquid-cooled radiating system generally comprises a heat absorbing units, heat-sink unit, working fluid and connecting duct, wherein heat absorbing units absorbs heat from heater element, by the working fluid in the conduit heat is taken away then, by heat-sink unit heat is dispersed in the air at last.
The tradition liquid-cooled radiating system generally adopts neat liquid as working fluid, but general neat liquid conductive coefficient is less, thermal resistance is bigger between itself and heat absorbing units, heat-sink unit and connecting duct tube wall, cause the liquid-cooled radiating system working fluid not dispel the heat from the heat absorbing units heat absorption and to heat-sink unit rapidly, thereby influence the heat biography amount of liquid-cooled radiating system, reduce radiating efficiency.
Mirror is arranged at this, a kind of bigger hot biography amount and real in necessary than the liquid-cooled radiating system of high cooling efficiency that has is provided.
[summary of the invention]
Below will illustrate a kind ofly have bigger hot biography amount and with embodiment than the liquid-cooled radiating system of high cooling efficiency.
A kind of liquid-cooled radiating system, it comprises: a heat absorbing units; One heat-sink unit; Connect described heat absorbing units and be arranged in the connecting duct of described heat-sink unit; And be flowing in working fluid in described heat absorbing units and the connecting duct, wherein said working fluid comprises a liquid medium and is scattered in Magnaglo in the described liquid medium, described liquid-cooled radiating system further comprises at least one magnetic field generation device, producing magnetic field, and described heat absorbing units or heat-sink unit place this magnetic field.
With respect to prior art, be dispersed with Magnaglo in the working fluid of described liquid-cooled radiating system, its heat absorbing units or heat-sink unit place have magnetic field generation device is in the magnetic field of variation heat absorbing units or heat-sink unit, because the effect in magnetic field, Magnaglo in the working fluid can move by magnetic direction, driving the liquid medium molecule simultaneously moves together, therefore pass through the continuous variation in magnetic field, can make Magnaglo irregular movement in liquid medium, and then make the form that working fluid flows become turbulent state, this measure can improve the coefficient of heat conduction of working fluid, and then the heat biography amount of raising working fluid, the radiating efficiency of raising liquid-cooled radiating system.
[description of drawings]
Fig. 1 is the liquid-cooled radiating system schematic diagram of first embodiment provided by the present invention.
Fig. 2 is the heat absorbing units schematic diagram of the liquid-cooled radiating system of first embodiment provided by the present invention.
Fig. 3 is the liquid-cooled radiating system schematic diagram of second embodiment provided by the present invention.
[embodiment]
Below in conjunction with accompanying drawing the present invention is described in further detail.
See also Fig. 1, be the liquid-cooled radiating system 10 that the first embodiment of the present invention provides, it comprises: a heat absorbing units 20; One heat-sink unit 30; The connecting duct 40 that connects described heat absorbing units 20 and heat-sink unit 30; And being flowing in working fluid 50 in described heat absorbing units 20 and the connecting duct 40, wherein said working fluid 50 comprises a liquid medium and is scattered in Magnaglo in the described liquid medium that described connecting duct 40 is arranged in the described heat-sink unit 30.
Liquid medium described in the working fluid 50 comprises one or more the mixing in water, alcohols and the ketone, described alcohols can be one or more the mixing in methyl alcohol, ethanol, propyl alcohol, n-butanol, n-amyl alcohol, n-hexyl alcohol, n-heptanol, n-octyl alcohol and the ethylene glycol, described ketone can be acetone, and the liquid medium that present embodiment uses is pure water.But the mixing of one or more in described Magnaglo chosen from Fe, cobalt, nickel, ferroalloy, cobalt alloy and the nickel alloy.Preferably, described Magnaglo accounts for 0.1%～3% of working fluid 50 total weights, and particle diameter is 1～1000 nanometer.More preferably, described Magnaglo is that nanometer grade powder is that particle diameter is 1～100 nanometer.Working fluid 50 also can comprise the heat conduction powder, optional one or more the mixing in gold, silver, copper, aluminium, cupric oxide, aluminium oxide, boron nitride, aluminium nitride and zinc oxide of described heat conduction powder, and preferably, this heat conduction powder is a nanometer grade powder.Working fluid 50 also can comprise a protective agent; be used to prevent Magnaglo and heat conduction powders; described protective agent comprises one or more the mixing in citric acid, citrate, single lemon acid, polyvinyl alcohol, PVP and the quarternary ammonium salt, and the protective agent that present embodiment uses is polyvinyl alcohol.Magnaglo in the present embodiment is a nano grade iron powder, and the heat conduction powder is the nanoscale copper powder.
Wherein said heat absorbing units 20 is close on the heater element 60, is used to absorb the heat of heater element 60.Described heat-sink unit 30 can be radiator or air heat exchanger etc., and heat-sink unit 30 is an air heat exchanger in the present embodiment.
See also Fig. 2, the heat absorbing units 20 in the present embodiment has inlet 21 and liquid outlet 22, in establish bending channel 23, a pair of electromagnet 24,24 ' is attached at two opposed outer surface 25,25 ' of heat absorbing units 20.Described heat absorbing units 20 also can replace described bending channel 23 by the interior cavity of establishing, and preferably, bending channel 23 is set in the heat absorbing units 20.
Described electromagnet 24,24 ' is used to provide a magnetic field, because the effect in magnetic field, Magnaglo in the working fluid 50 can be toward the magnetic direction motion, driving the liquid medium molecule simultaneously moves together, therefore by electromagnet 24, the continuous variation in 24 ' magnetic field, can make Magnaglo irregular movement in liquid medium, and then make the form that working fluid 50 flows become turbulent state, working fluid 50 inner all kinds of molecular motion speed and direction are different under this state, intermolecular collision probability heightens, and thermal diffusion is accelerated, and the coefficient of heat conduction increases, and then the heat biography amount of raising working fluid 50, the radiating efficiency of raising liquid-cooled radiating system 10.
Need explanation, as long as heat absorbing units 20 is located in the magnetic field that changes can reaches above-mentioned effect, no matter this magnetic field is to form or eternal magnet by a motion forms by an electric field that changes, or forms by electromagnet among the present invention.Therefore described heat absorbing units 20 is provided with the position of electromagnet and the quantity of set electromagnet all can have multiple choices, the quantity of the electromagnet that described heat absorbing units 20 is provided with can be one and also can be a plurality of, the position is set can be heat absorbing units 20 surfaces, also can keep certain distance with heat absorbing units 20.
See also Fig. 3, be the liquid-cooled radiating system 100 that the second embodiment of the present invention provides, it comprises: a heat absorbing units 200; One heat-sink unit 300; Connect described heat absorbing units 200 and be arranged in the connecting duct 400 of described heat-sink unit 300; And being flowing in working fluid 500 in described heat absorbing units 200 and the connecting duct 400, wherein said working fluid 500 comprises a liquid medium and is scattered in Magnaglo in the described liquid medium.
The liquid-cooled radiating system 10 that the liquid-cooled radiating system 100 that present embodiment provides and the first embodiment of the present invention provide is basic identical, and its difference is that heat-sink unit 300 is located in the magnetic field that changes in the present embodiment.The magnetic field generation type of this variation comprises that the electric field by a variation forms, and forms by the eternal magnet that moves, and forms by electromagnet.Use a pair of electromagnet 310,310 ' to be attached at two opposed outer surface 320,320 ' of heat-sink unit 300 in the present embodiment.
According to the first embodiment of the present invention and second embodiment as can be known, also heat absorbing units and heat-sink unit all can be placed magnetic field among the present invention, also promptly magnetic field generation device all is set in heat absorbing units and heat-sink unit place.
When liquid-cooled radiating system is worked, working fluid enters and takes away the heat that heat absorbing units absorbs from heater element in the heat absorbing units, flow to by connecting duct and to emit heat in the heat-sink unit, and then flow back to heat absorbing units by connecting duct, reach effect thereby so move in circles to the heater element heat radiation.
With respect to prior art, be dispersed with Magnaglo in the working fluid of described liquid-cooled radiating system, its heat absorbing units or heat-sink unit place have magnetic field generation device is in the magnetic field of variation heat absorbing units or heat-sink unit, because the effect in magnetic field, Magnaglo in the working fluid can move by magnetic direction, driving the liquid medium molecule simultaneously moves together, therefore pass through the continuous variation in magnetic field, can make Magnaglo irregular movement in liquid medium, and then make the form that working fluid flows become turbulent state, this measure can improve the coefficient of heat conduction of working fluid, and then the heat biography amount of raising working fluid, the radiating efficiency of raising liquid-cooled radiating system.
Be understandable that, concerning one skilled in the relevant art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these changes and distortion all should belong to the protection range in claim of the present invention.
Claims (13)
1. liquid-cooled radiating system, it comprises:
One heat absorbing units;
One heat-sink unit;
Connect described heat absorbing units and be arranged in the connecting duct of described heat-sink unit;
And be flowing in working fluid in described heat absorbing units and the connecting duct;
It is characterized in that described working fluid comprises a liquid medium and is scattered in Magnaglo in the described liquid medium, described liquid-cooled radiating system further comprises at least one magnetic field generation device, to produce magnetic field, described heat absorbing units or heat-sink unit are to place this magnetic field.
2. liquid-cooled radiating system as claimed in claim 1 is characterized in that, described magnetic field generation device is eternal magnet or electromagnet.
3. liquid-cooled radiating system as claimed in claim 1 is characterized in that, described magnetic field generation device is arranged at heat absorbing units or heat-sink unit two facing surfaces.
4. liquid-cooled radiating system as claimed in claim 1 is characterized in that, is provided with bending channel in the described heat absorbing units, circulates for working fluid.
5. liquid-cooled radiating system as claimed in claim 1 is characterized in that, described liquid medium is selected from one or more the mixing in water, alcohols and the ketone.
6. liquid-cooled radiating system as claimed in claim 1 is characterized in that, the mixing of one or more in described Magnaglo chosen from Fe, cobalt, nickel, ferroalloy, cobalt alloy and the nickel alloy.
7. as claim 1 or 6 described liquid-cooled radiating systems, it is characterized in that described Magnaglo is a nanometer grade powder.
8. liquid-cooled radiating system as claimed in claim 1 is characterized in that, described working fluid further comprises a plurality of heat conduction powder.
9. liquid-cooled radiating system as claimed in claim 10 is characterized in that, described heat conduction powder is selected from one or more the mixing in gold, silver, copper, aluminium, cupric oxide, aluminium oxide, boron nitride, aluminium nitride and the zinc oxide.
10. liquid-cooled radiating system as claimed in claim 8 or 9 is characterized in that described heat conduction powder is a nanometer grade powder.
11. liquid-cooled radiating system as claimed in claim 1 is characterized in that, described working fluid further comprises a protective agent.
12. liquid-cooled radiating system as claimed in claim 11 is characterized in that, described protective agent comprises one or more mixing of citric acid, citrate, single lemon acid, polyvinyl alcohol, PVP and quarternary ammonium salt.
13. liquid-cooled radiating system as claimed in claim 1 is characterized in that, described Magnaglo accounts for 0.1%～3% of working fluid total weight.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100374956A CN1937900A (en) | 2005-09-23 | 2005-09-23 | Liquid-cooled radiating system |
| US11/398,137 US20070068172A1 (en) | 2005-09-23 | 2006-04-04 | Liquid cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100374956A CN1937900A (en) | 2005-09-23 | 2005-09-23 | Liquid-cooled radiating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1937900A true CN1937900A (en) | 2007-03-28 |
Family
ID=37892197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100374956A Pending CN1937900A (en) | 2005-09-23 | 2005-09-23 | Liquid-cooled radiating system |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20070068172A1 (en) |
| CN (1) | CN1937900A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102781200A (en) * | 2011-05-11 | 2012-11-14 | 研能科技股份有限公司 | Radiating device |
| CN102984919A (en) * | 2011-09-02 | 2013-03-20 | 三星电机株式会社 | Cooling unit |
| CN104317350A (en) * | 2014-10-13 | 2015-01-28 | 上海大学 | Method for controlling flowing of magnetic liquid |
| CN109653215A (en) * | 2018-12-14 | 2019-04-19 | 沈阳建筑大学 | A kind of application method of the reinforcing slurries with magnetosensitive thickening power |
| CN110072366A (en) * | 2018-01-21 | 2019-07-30 | 大连良华科技有限公司 | A kind of double dynamical magnetic force radiator |
| CN110072367A (en) * | 2018-01-21 | 2019-07-30 | 大连良华科技有限公司 | A kind of magnetic force radiator |
| CN110690182A (en) * | 2019-09-27 | 2020-01-14 | 联想(北京)有限公司 | Radiator, radiating assembly, electronic equipment and control method |
| CN110821903A (en) * | 2019-11-13 | 2020-02-21 | 徐州宝美工程机械有限公司 | Self-heat-dissipation type safety oil tank for hydraulic pump station |
| CN110868818A (en) * | 2019-11-28 | 2020-03-06 | 安徽实友电力金具有限公司 | Smart home devices's protecting sheathing with moisture resistance |
| CN111912267A (en) * | 2020-06-24 | 2020-11-10 | 西安交通大学 | Magnetic driving heat pipe of nano magnetic fluid |
| CN112153880A (en) * | 2020-10-28 | 2020-12-29 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Double-sided heat exchange micro-channel liquid cooling radiator |
| CN112312743A (en) * | 2020-10-28 | 2021-02-02 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Enhanced heat exchange micro-channel liquid cooling radiator |
| CN112533447A (en) * | 2020-11-27 | 2021-03-19 | 维沃移动通信有限公司 | Heat dissipation method and device and electronic equipment |
| CN113056173A (en) * | 2021-03-15 | 2021-06-29 | Tcl华星光电技术有限公司 | Display device |
| CN114180424A (en) * | 2021-12-13 | 2022-03-15 | 浙江诺比克电梯有限公司 | Elevator control alarm system and control cabinet |
| CN114216359A (en) * | 2021-10-28 | 2022-03-22 | 中国船舶重工集团公司第七一九研究所 | Electromagnetic drive type heat exchange system |
| CN115579714A (en) * | 2022-11-17 | 2023-01-06 | 济南邦德激光股份有限公司 | Laser device heat abstractor and laser device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5838911B2 (en) * | 2012-05-23 | 2016-01-06 | 株式会社デンソー | Cooling system |
| CN103925731B (en) * | 2014-03-28 | 2017-04-19 | 兰州交通大学 | Magnetic cooling pipe |
| CN104165476A (en) * | 2014-06-22 | 2014-11-26 | 汪枫 | Magnetic temperature-regulating tube |
| US20190214173A1 (en) * | 2016-08-04 | 2019-07-11 | Nanyang Technological University | An apparatus for transferring heat from a heat source to a heat sink |
| CN109144208A (en) * | 2018-11-05 | 2019-01-04 | 北京小米移动软件有限公司 | A kind of radiator, cooling system and electronic equipment |
| JPWO2022085567A1 (en) * | 2020-10-23 | 2022-04-28 |
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| JPS6018902A (en) * | 1983-07-13 | 1985-01-31 | Toyota Motor Corp | Preparation of magnetic fluid |
| US5231834A (en) * | 1990-08-27 | 1993-08-03 | Burnett James E | Magnetic heating and cooling systems |
| US5641424A (en) * | 1995-07-10 | 1997-06-24 | Xerox Corporation | Magnetic refrigerant compositions and processes for making and using |
| US5863455A (en) * | 1997-07-14 | 1999-01-26 | Abb Power T&D Company Inc. | Colloidal insulating and cooling fluid |
| US20020046825A1 (en) * | 2000-10-23 | 2002-04-25 | Wen-Shi Huang | Cooling device using magnetizated thermal-conduction liquid |
| US6749012B2 (en) * | 2002-04-30 | 2004-06-15 | Intel Corporation | Liquid cooling system for processors |
| US6809928B2 (en) * | 2002-12-27 | 2004-10-26 | Intel Corporation | Sealed and pressurized liquid cooling system for microprocessor |
| TWI259569B (en) * | 2005-06-09 | 2006-08-01 | Ind Tech Res Inst | Micro channel heat sink driven by hydromagnetic wave pump |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102781200A (en) * | 2011-05-11 | 2012-11-14 | 研能科技股份有限公司 | Radiating device |
| CN102984919A (en) * | 2011-09-02 | 2013-03-20 | 三星电机株式会社 | Cooling unit |
| CN104317350A (en) * | 2014-10-13 | 2015-01-28 | 上海大学 | Method for controlling flowing of magnetic liquid |
| CN110072366A (en) * | 2018-01-21 | 2019-07-30 | 大连良华科技有限公司 | A kind of double dynamical magnetic force radiator |
| CN110072367A (en) * | 2018-01-21 | 2019-07-30 | 大连良华科技有限公司 | A kind of magnetic force radiator |
| CN109653215A (en) * | 2018-12-14 | 2019-04-19 | 沈阳建筑大学 | A kind of application method of the reinforcing slurries with magnetosensitive thickening power |
| CN110690182A (en) * | 2019-09-27 | 2020-01-14 | 联想(北京)有限公司 | Radiator, radiating assembly, electronic equipment and control method |
| CN110821903B (en) * | 2019-11-13 | 2021-07-20 | 徐州宝美工程机械有限公司 | Self-heat-dissipation type safety oil tank for hydraulic pump station |
| CN110821903A (en) * | 2019-11-13 | 2020-02-21 | 徐州宝美工程机械有限公司 | Self-heat-dissipation type safety oil tank for hydraulic pump station |
| CN110868818B (en) * | 2019-11-28 | 2021-09-28 | 安徽实友电力金具有限公司 | Smart home devices's protecting sheathing with moisture resistance |
| CN110868818A (en) * | 2019-11-28 | 2020-03-06 | 安徽实友电力金具有限公司 | Smart home devices's protecting sheathing with moisture resistance |
| CN111912267A (en) * | 2020-06-24 | 2020-11-10 | 西安交通大学 | Magnetic driving heat pipe of nano magnetic fluid |
| CN112153880A (en) * | 2020-10-28 | 2020-12-29 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Double-sided heat exchange micro-channel liquid cooling radiator |
| CN112312743A (en) * | 2020-10-28 | 2021-02-02 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Enhanced heat exchange micro-channel liquid cooling radiator |
| CN112312743B (en) * | 2020-10-28 | 2022-05-31 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Enhanced heat exchange micro-channel liquid cooling radiator |
| CN112153880B (en) * | 2020-10-28 | 2022-06-07 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Double-sided heat exchange micro-channel liquid cooling radiator |
| CN112533447A (en) * | 2020-11-27 | 2021-03-19 | 维沃移动通信有限公司 | Heat dissipation method and device and electronic equipment |
| CN113056173A (en) * | 2021-03-15 | 2021-06-29 | Tcl华星光电技术有限公司 | Display device |
| CN114216359A (en) * | 2021-10-28 | 2022-03-22 | 中国船舶重工集团公司第七一九研究所 | Electromagnetic drive type heat exchange system |
| CN114216359B (en) * | 2021-10-28 | 2023-11-24 | 中国船舶重工集团公司第七一九研究所 | Electromagnetic driving type heat exchange system |
| CN114180424A (en) * | 2021-12-13 | 2022-03-15 | 浙江诺比克电梯有限公司 | Elevator control alarm system and control cabinet |
| CN115579714A (en) * | 2022-11-17 | 2023-01-06 | 济南邦德激光股份有限公司 | Laser device heat abstractor and laser device |
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| US20070068172A1 (en) | 2007-03-29 |
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