CN203231673U - Liquid metal vapor chamber based on magnetic drive - Google Patents
Liquid metal vapor chamber based on magnetic drive Download PDFInfo
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- CN203231673U CN203231673U CN 201320098110 CN201320098110U CN203231673U CN 203231673 U CN203231673 U CN 203231673U CN 201320098110 CN201320098110 CN 201320098110 CN 201320098110 U CN201320098110 U CN 201320098110U CN 203231673 U CN203231673 U CN 203231673U
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Abstract
The utility model relates to a liquid metal vapor chamber based on magnetic drive. The liquid metal vapor chamber is characterized by comprising a metal plate, liquid metal, a magnetic rotor, a flow guide plate and a rotating magnetic field module, a cavity is formed in the metal plate and internally filled with the liquid metal, and the magnetic rotor and the flow guide plate are placed in the cavity. The rotating magnetic field module is positioned outside the metal plate and used for generating a rotating magnetic field to drive the magnetic rotor to rotate, the liquid metal flows and exchanges heat through rotation of the magnetic rotor and the flow guide function of the flow guide plate, and concentrated heat at a heat source is transmitted to a distance to achieve uniform temperature effects. By making full use of the thermal-physical property of high thermal conductivity of the liquid metal and ingeniously adopting a non-contact magnetic drive mode, the liquid metal vapor chamber is remarkable in uniform temperature performance, more stable and reliable by non-contact drive, and widely applicable to the fields of power electronics, aeronautics and astronautics and the like.
Description
Technical field
The utility model relates to a kind of temperature-uniforming plate, and particularly a kind of temperature-uniforming plate that utilizes the magnetically-actuated liquid metal can effectively launch the high density hot-fluid at thermal source place.
Background technology
Along with the increase of electronic device power and the raising of integrated level, the heat flow density at element heating place is more and more higher, can reach 2000W/cm as the heat flow density at thermal source place in the laser
2, how this high density heat is expanded to bigger radiating surface, and then be passed to the far-end radiator, not only be related to temperature stability, reliability and the precision of electronic device, also can the life-span of device be exerted an influence.
At present, temperature-uniforming plate is to realize one of main mode that the high density heat is effectively expanded, and as its name suggests, temperature-uniforming plate should have excellent equal temperature characteristics, the high density hot-fluid in the zonule can be passed to whole zone.Temperature-uniforming plate commonly used is copper base or embedding heat pipe-type copper base, and it has certain limitation.The samming mode of copper base is mainly heat conduction, though copper itself has high thermal, for the high heat flux occasion, all temp effect is unsatisfactory.Embedding heat pipe-type copper base embeds heat pipe in the copper base, can significantly improve the samming ability of substrate, but Heat Transfer of Heat Pipe on Heat Pipe is limited in one's ability, need tens of heat pipes to use simultaneously when heat output arrives kilowatt magnitude, and thermal source place difficulty has enough spaces.
For this reason, the utility model proposes a kind of liquid metal temperature-uniforming plate based on magnetically-actuated.It utilizes the non-contact type magnetic driving principle, and the polarity by continuous conversion rotating excitation field module promotes that magnet rotor rotates in the runner, and the rotating band hydrodynamic attitude metal by rotor flows in temperature-uniforming plate, and the heat at central heat source place is passed to whole zone.Its typical advantages is as follows: (1) heat transfer effect is good: liquid metal has metal heat-conducting and Heat Transfer of Heat Pipe on Heat Pipe abilities such as the traditional copper of being much better than aluminium, and is very competent at exchange capability of heat and the thermotransport of high density hot-fluid; (2) contactless driving: utilize the magnetically-actuated principle, the polarity by continuous conversion rotating excitation field module promotes magnet rotor and rotates, and can effectively solve sealing problem, avoids vibration to transmit simultaneously, and more reliable and more stable, the life-span is long; (3) volume is little: because the heat-transfer capability of liquid metal excellence, so temperature-uniforming plate need not to rely on and increases area and improve equal temp effect, saves the space more; (4) with low cost: as can to produce tens of Heat Transfer of Heat Pipe on Heat Pipe amounts with the small amount of liquid metal, under the prerequisite that guarantees equal temp effect, reduce cost to greatest extent.
Summary of the invention
The purpose of this utility model is to provide a kind of liquid metal temperature-uniforming plate based on magnetically-actuated, utilize the magnetically-actuated principle, promoting magnet rotor by continuous conversion rotating excitation field module polarity rotates, rotating band hydrodynamic attitude metal by rotor flows in temperature-uniforming plate, and the heat at central heat source place is passed to whole zone.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of liquid metal temperature-uniforming plate based on magnetically-actuated is characterized in that it is composed as follows:
Metallic plate has cavity in the described metallic plate;
Liquid metal, described liquid metal are filled in the cavity of described metallic plate;
Magnet rotor, described magnet rotor is arranged in the cavity of described metallic plate;
The rotating excitation field module, described rotating excitation field module places the metallic plate outside, described rotating excitation field module realizes by alternating magnetic field, or by electromagnetic coil array in turn the mode of operation realize, can in described cavity, rotate with the described magnet rotor of magnetically-actuated.
Described liquid metal temperature-uniforming plate based on magnetically-actuated wherein, also comprises deflector, and described deflector is arranged in the cavity of described metallic plate.
Described liquid metal temperature-uniforming plate based on magnetically-actuated, wherein, the cavity of described metallic plate is cuboid, cylinder or conveyor screw.
Described liquid metal temperature-uniforming plate based on magnetically-actuated, wherein, that described magnet rotor is shaped as is rectangular-shaped, impeller blade shape, zigzag, wedge shape or waveform.
Described liquid metal temperature-uniforming plate based on magnetically-actuated, wherein, described magnet rotor is ferromagnetism material or permanent magnet, surperficial coating plastic is with anticorrosion.
Described liquid metal temperature-uniforming plate based on magnetically-actuated, wherein, described ferromagnetism material is iron, cobalt, nickel or its alloy, described plastics are polyethylene, polypropylene, polyvinyl chloride or Merlon.
Described liquid metal temperature-uniforming plate based on magnetically-actuated, wherein, described magnet rotor is single work or is a plurality of rotor connection in series-parallel work.
Described liquid metal temperature-uniforming plate based on magnetically-actuated wherein, is filled full liquid metal in the cavity of described metallic plate.
Described liquid metal temperature-uniforming plate based on magnetically-actuated, wherein, described rotating excitation field module comprises magnetic core and is wrapped in coil on the magnetic core that described coil is connected with alternating current, to form described alternating magnetic field.
Described liquid metal temperature-uniforming plate based on magnetically-actuated, wherein, described rotating excitation field module is made up of N solenoid and a control circuit, N is the even number more than or equal to 6, a described N solenoid surrounds circular electromagnetic coil array in order, each coil be in its another coil to path position and be connected in series in twos by end of the same name, be combined into the coil groups of N/2, and, in the described conglobate solenoid, wherein corresponding coil the inner is the N utmost point on the 180 degree circumference, corresponding coil the inner is the S utmost point on the remaining 180 degree circumference, described control circuit makes wherein a pair of coil groups energising operation in regular turn, makes described electromagnetic coil array form the electromagnetic field of a rotation by the mode of operation in turn.
The liquid metal temperature-uniforming plate based on magnetically-actuated that the utility model provides, its advantage is:
(1) heat transfer effect is good.Liquid metal has metal heat-conducting and Heat Transfer of Heat Pipe on Heat Pipe abilities such as the traditional copper of being much better than aluminium, and is very competent at exchange capability of heat and the thermotransport of high density hot-fluid;
(2) adopt contactless driving, do not have mechanical moving component.Utilize the magnetically-actuated principle, the mode of moving in turn by alternating magnetic field or coil array produces rotating excitation field, does not have any mechanical moving element, not only can effectively solve sealing problem, avoids vibration to transmit simultaneously, and more reliable and more stable, the life-span is long;
(3) volume is little.Because the heat-transfer capability of liquid metal excellence, so temperature-uniforming plate need not to rely on and increases area and improve equal temp effect, saves the space more;
(4) with low cost.Can produce tens of Heat Transfer of Heat Pipe on Heat Pipe amounts with the small amount of liquid metal, under the prerequisite that guarantees equal temp effect, reduce cost to greatest extent.
The utility model can be widely used in the high heat flux occasion, is particularly useful for the heat radiation of high performance components such as laser, LED, computer, high-low pressure frequency converter, satellite.
Description of drawings
Fig. 1 is liquid metal equalizing plate structure schematic diagram among the embodiment 1;
Fig. 2 is liquid metal temperature-uniforming plate cavity structure schematic diagram among the embodiment 1;
Fig. 3 is liquid metal equalizing plate structure schematic diagram among the embodiment 2;
Fig. 4 is liquid metal equalizing plate structure schematic diagram among the embodiment 3;
Fig. 5 is liquid metal temperature-uniforming plate cavity structure schematic diagram among the embodiment 3.
The specific embodiment
Further describe the utility model below in conjunction with drawings and the specific embodiments.
Embodiment 1
Embodiment 1 has showed that a kind of typical case of the liquid metal temperature-uniforming plate based on magnetically-actuated of the present utility model uses.Fig. 1 is the equalizing plate structure schematic diagram; Fig. 2 is temperature-uniforming plate cavity structure schematic diagram.
As shown in the figure, the liquid metal temperature-uniforming plate of present embodiment is made up of metallic plate 1, liquid metal 2, magnet rotor 3, rotating excitation field module 4;
The metallic plate 1 of present embodiment is good with copper coin, and a cylindrical cavity is arranged in it, places magnet rotor 3 in the described cylindrical cavity and fills full liquid metal 2; Rotating excitation field module 4 is positioned at metallic plate 1 outside, and corresponding to the center of an end face of described cylindrical cavity, is used for driving magnet rotor 3 and rotates.
Wherein, described metallic plate 1 is preferably a cuboid, and size is chosen as 5cm * 5cm * 1cm; The diameter of the cylindrical cavity in the metallic plate 1 is 4cm, the high 0.8cm of being; Magnet rotor 3 is cuboid, is of a size of 4cm * 0.6cm * 0.6cm.
Wherein, the iron staff that magnet rotor 3 coats for the polyethylene material, liquid metal 2 is the gallium indium alloy.
Wherein, magnet rotor 3 rotating speeds are 1000r/min.
Rotating excitation field module 4 realizes that by alternating magnetic field namely to the coil indirect current, coil is wrapped on the FERRITE CORE, and the coil material is copper, and the number of turn is 2000, alternating current size 70A, and frequency is 50Hz.
At first start rotating excitation field module 4 during work, the rotating excitation field of its generation drives described magnet rotor 3 and rotates, and then the liquid metal 2 that drives in metallic plate 1 cavity flows.The high density hot-fluid that thermal source 5 produces reaches distal metal plate place through metallic plate 1 level on the one hand.Simultaneously, hot-fluid vertically passes to metallic plate 1 cavity place, and with liquid metal 2 heat exchange of flowing, and reach distal metal plate place through liquid metal 2, to reach the purpose of samming.
Similar to embodiment 1, the liquid metal temperature-uniforming plate of present embodiment is made up of metallic plate 1, liquid metal 2, magnet rotor 3, deflector 6 and rotating excitation field module 4;
One circular cavity is arranged in the metallic plate 1, wherein place magnet rotor 3, deflector 6 and fill full liquid metal 2; Rotating excitation field module 4 is positioned at metallic plate 1 outside, is used for driving magnet rotor 3 and rotates.
Metallic plate 1 is a cuboid, size 50cm * 50cm * 1cm; The metallic plate internal cavity is circular, diameter 40cm, height 0.8cm; Magnet rotor 3 is impeller blade shape, is positioned in the deflector 6; The deflector shape as shown in Figure 4, comprising that one places the circular cavity edge and places in the described orthodrome plate and the little arc plate opposite with the opening direction of described orthodrome plate towards the open orthodrome plate of the center of circle of circular cavity direction and one, highly is 0.8cm; Described magnet rotor 3 places between described orthodrome plate and the described little arc plate.
Rotating excitation field module 4 realizes by the mode that electromagnetic coil array moves in turn, formed by N solenoid namely that (N is for more than or equal to 6 even number, in the present embodiment be 8), solenoid is placed on metallic plate 1 top, and surround circular electromagnetic coil array in order, each coil be in its another coil to path position and be connected in series in twos by end of the same name, be combined into the coil groups of N/2 (in the present embodiment being 4 pairs), and, in the described conglobate solenoid, wherein corresponding coil the inner is the N utmost point on the 180 degree circumference, and corresponding coil the inner is the S utmost point on the remaining 180 degree circumference.Then, and utilize a control circuit that it is controlled driving, make the operation of switching in regular turn of every pair of coil groups, make and see on a macro scale, whole electromagnetic coil array forms the electromagnetic field of a rotation by the mode of operation in turn.
At first start rotating excitation field module 4 during work, the rotating excitation field field of its generation drives described magnet rotor 3 and rotates, and through the deflector water conservancy diversion, liquid metal 2 flows in the cavity of metallic plate 1.The high density hot-fluid that thermal source 5 produces reaches distal metal plate place through metallic plate 1 level on the one hand.Simultaneously, hot-fluid vertically passes to metallic plate 1 cavity place, with liquid metal 2 heat exchange of flowing, and reaches distal metal plate place through liquid metal 2, to reach the purpose of samming.
Similar to embodiment 1, the liquid metal temperature-uniforming plate in the present embodiment is made up of mixture 2, magnet rotor 3, deflector 6 and the rotating excitation field module 4 of metallic plate 1, liquid metal and water;
One cuboid cavity is arranged in the metallic plate 1, wherein place magnet rotor 3, deflector 6 and fill the mixture 2 of expiring liquid metal and water; Rotating excitation field module 4 is positioned at metallic plate 1 outside, is used for driving magnet rotor 3 and rotates.
Metallic plate 1 is a cuboid, size 50cm * 4cm * 1cm; The metallic plate internal cavity is cuboid, size 40cm * 3cm * 0.8cm; Magnet rotor 3 is rectangle, and size 4cm * 0.8cm * 0.8cm is positioned in the deflector 6; The shape of deflector 6 as shown in Figure 6, the straight plate that comprises two strips, highly be 0.8cm, two blocks of described straight plates are arranged at the both sides of described magnet rotor 3 symmetrically, and be located along the same line, can arrange for described magnet rotor 3 between two blocks of straight plates, leave the gap between the inward flange of described straight plate and described cavity, but the mixture 2 of feed flow attitude metal and water flows.
The mixture of liquid metal and water is as working media, can be with the effective combination of advantage of heat transfer property and the big specific volume of water of liquid metal excellence, to reach better heat-transfer effect.
The mixture 2 of liquid metal and water is made up of 50% liquid metal and 50% water, and wherein liquid metal is the gallium indium tin kirsite.
Rotating excitation field module 4 realizes that by alternating magnetic field namely to the coil indirect current, coil is wrapped on the FERRITE CORE, and the coil material is copper, and the number of turn is 2000, alternating current size 70A, and frequency is 50Hz.
At first start rotating excitation field module 4 during work, the rotating excitation field of its generation drives described magnet rotor 3 and rotates, and through the deflector water conservancy diversion, the mixture 2 of liquid metal and water flows in the cavity of metallic plate 1.The high density hot-fluid that thermal source 5 produces reaches distal metal plate place through metallic plate 1 level on the one hand.Simultaneously, hot-fluid vertically passes to metallic plate 1 cavity place, with the liquid metal that flows and mixture 2 heat exchange of water, and reaches distal metal plate place through it, to reach the purpose of samming.
It should be noted that at last above embodiment is only unrestricted in order to the technical solution of the utility model to be described.Although have been described in detail with reference to the utility model of embodiment; those of ordinary skill in the art is to be understood that; the technical solution of the utility model is made amendment or is equal to replacement; do not break away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the protection domain of the present utility model.
Claims (10)
1. liquid metal temperature-uniforming plate based on magnetically-actuated is characterized in that it is composed as follows:
Metallic plate has cavity in the described metallic plate;
Liquid metal, described liquid metal are filled in the cavity of described metallic plate;
Magnet rotor, described magnet rotor is arranged in the cavity of described metallic plate;
The rotating excitation field module, described rotating excitation field module places the metallic plate outside, described rotating excitation field module realizes by alternating magnetic field, or by electromagnetic coil array in turn the mode of operation realize, can in described cavity, rotate with the described magnet rotor of magnetically-actuated.
2. the liquid metal temperature-uniforming plate based on magnetically-actuated according to claim 1 is characterized in that, also comprise deflector, described deflector is arranged in the cavity of described metallic plate.
3. the liquid metal temperature-uniforming plate based on magnetically-actuated according to claim 1 is characterized in that, the cavity of described metallic plate is cuboid, cylinder or conveyor screw.
4. the liquid metal temperature-uniforming plate based on magnetically-actuated according to claim 1 is characterized in that, that described magnet rotor is shaped as is rectangular-shaped, impeller blade shape, zigzag, wedge shape or waveform.
5. the liquid metal temperature-uniforming plate based on magnetically-actuated according to claim 1 is characterized in that, described magnet rotor is ferromagnetism material or permanent magnet, and surperficial coating plastic is with anticorrosion.
6. the liquid metal temperature-uniforming plate based on magnetically-actuated according to claim 5 is characterized in that, described ferromagnetism material is iron, cobalt, nickel or its alloy, and described plastics are polyethylene, polypropylene, polyvinyl chloride or Merlon.
7. the liquid metal temperature-uniforming plate based on magnetically-actuated according to claim 1 is characterized in that, described magnet rotor is single work or is a plurality of rotor connection in series-parallel work.
8. the liquid metal temperature-uniforming plate based on magnetically-actuated according to claim 1 is characterized in that, fills full liquid metal in the cavity of described metallic plate.
9. the liquid metal temperature-uniforming plate based on magnetically-actuated according to claim 1 is characterized in that, described rotating excitation field module comprises magnetic core and be wrapped in coil on the magnetic core that described coil is connected with alternating current, to form described alternating magnetic field.
10. the liquid metal temperature-uniforming plate based on magnetically-actuated according to claim 1, it is characterized in that, described rotating excitation field module is made up of N solenoid and a control circuit, N is the even number more than or equal to 6, a described N solenoid surrounds circular electromagnetic coil array in order, each coil be in its another coil to path position and be connected in series in twos by end of the same name, be combined into the coil groups of N/2, and, in the described conglobate solenoid, wherein corresponding coil the inner is the N utmost point on the 180 degree circumference, corresponding coil the inner is the S utmost point on the remaining 180 degree circumference, described control circuit makes wherein a pair of coil groups energising operation in regular turn, makes described electromagnetic coil array form the electromagnetic field of a rotation by the mode of operation in turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320098110 CN203231673U (en) | 2013-03-04 | 2013-03-04 | Liquid metal vapor chamber based on magnetic drive |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320098110 CN203231673U (en) | 2013-03-04 | 2013-03-04 | Liquid metal vapor chamber based on magnetic drive |
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| CN 201320098110 Expired - Lifetime CN203231673U (en) | 2013-03-04 | 2013-03-04 | Liquid metal vapor chamber based on magnetic drive |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674777A (en) * | 2016-01-25 | 2016-06-15 | 云南科威液态金属谷研发有限公司 | Intelligent device based on liquid metal |
| CN105764307A (en) * | 2016-04-11 | 2016-07-13 | 联想(北京)有限公司 | Heat dissipation device and electronic device |
| CN105939593A (en) * | 2016-06-23 | 2016-09-14 | 联想(北京)有限公司 | Cooling device and electronic equipment |
| CN106061201A (en) * | 2016-06-23 | 2016-10-26 | 联想(北京)有限公司 | Cooling device and electronic equipment |
| CN107702575A (en) * | 2017-09-30 | 2018-02-16 | 华北电力大学 | Magnetic phase transition microcapsule comes and goes the campaign-styled design method of hot and cold side and heat abstractor |
| CN108662941A (en) * | 2018-05-21 | 2018-10-16 | 吉林建筑大学 | A kind of heat exchanger |
| CN108673330A (en) * | 2018-05-21 | 2018-10-19 | 浙江工业大学 | A kind of field rotation type blade liquid metal burnishing device |
| CN112333983A (en) * | 2020-10-30 | 2021-02-05 | 维沃移动通信有限公司 | Electronic device |
| CN113453501A (en) * | 2021-06-11 | 2021-09-28 | Oppo广东移动通信有限公司 | Electronic equipment and shell assembly thereof |
-
2013
- 2013-03-04 CN CN 201320098110 patent/CN203231673U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674777A (en) * | 2016-01-25 | 2016-06-15 | 云南科威液态金属谷研发有限公司 | Intelligent device based on liquid metal |
| CN105764307B (en) * | 2016-04-11 | 2018-06-01 | 联想(北京)有限公司 | Radiator and electronic equipment |
| CN105764307A (en) * | 2016-04-11 | 2016-07-13 | 联想(北京)有限公司 | Heat dissipation device and electronic device |
| CN105939593B (en) * | 2016-06-23 | 2018-07-03 | 联想(北京)有限公司 | Radiator and electronic equipment |
| CN106061201A (en) * | 2016-06-23 | 2016-10-26 | 联想(北京)有限公司 | Cooling device and electronic equipment |
| CN105939593A (en) * | 2016-06-23 | 2016-09-14 | 联想(北京)有限公司 | Cooling device and electronic equipment |
| US10136553B2 (en) | 2016-06-23 | 2018-11-20 | Lenovo (Beijing) Co., Ltd. | Heat dissipation device and electronic device containing the same |
| CN107702575A (en) * | 2017-09-30 | 2018-02-16 | 华北电力大学 | Magnetic phase transition microcapsule comes and goes the campaign-styled design method of hot and cold side and heat abstractor |
| CN107702575B (en) * | 2017-09-30 | 2019-06-28 | 华北电力大学 | The campaign-styled design method of the round-trip hot and cold side of magnetic phase transition microcapsule and radiator |
| CN108662941A (en) * | 2018-05-21 | 2018-10-16 | 吉林建筑大学 | A kind of heat exchanger |
| CN108673330A (en) * | 2018-05-21 | 2018-10-19 | 浙江工业大学 | A kind of field rotation type blade liquid metal burnishing device |
| CN112333983A (en) * | 2020-10-30 | 2021-02-05 | 维沃移动通信有限公司 | Electronic device |
| CN112333983B (en) * | 2020-10-30 | 2022-11-22 | 维沃移动通信有限公司 | Electronic device |
| CN113453501A (en) * | 2021-06-11 | 2021-09-28 | Oppo广东移动通信有限公司 | Electronic equipment and shell assembly thereof |
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