CN107677152A - A kind of Micro-channel Liquid-cooling Cold Plate - Google Patents
A kind of Micro-channel Liquid-cooling Cold Plate Download PDFInfo
- Publication number
- CN107677152A CN107677152A CN201710845279.7A CN201710845279A CN107677152A CN 107677152 A CN107677152 A CN 107677152A CN 201710845279 A CN201710845279 A CN 201710845279A CN 107677152 A CN107677152 A CN 107677152A
- Authority
- CN
- China
- Prior art keywords
- channel
- micro
- cold plate
- main channel
- wing main
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The invention discloses a kind of Micro-channel Liquid-cooling Cold Plate, including cold plate base, inner flow passage is provided with inside cold plate base, inner flow passage includes flow channel entry point, runner exit and at least one micro-channel units, micro-channel units and connected respectively with flow channel entry point and runner exit, and coolant enters from flow channel entry point, after micro-channel units, flowed out from runner exit, the horizontal cross-section of micro-channel units is in butterfly, and flow channel entry point and runner exit connect with external environment condition respectively.A kind of Micro-channel Liquid-cooling Cold Plate provided by the present invention, using bionic design, imitative butterfly wing micro-channel units, pass through rational assignment of traffic, change the flow direction mode of coolant, turbulence level increase, is thinned boundary layer thickness, and heating surface uniform temperature and heat exchange efficiency are obtained for raising and strengthened.
Description
Technical field
The invention belongs to electronic information technical field, and in particular to a kind of Micro-channel Liquid-cooling Cold Plate.
Background technology
With the raising of electronic equipment integrated level, a large amount of regularly arranged components are arranged in limited space, and hot-fluid is close
Degree reaches hectowatt rank.Micro-channel Liquid-cooling Cold Plate has a small volume, and heat dispersion is high, the advantage such as in light weight, is currently used solution
The certainly radiating mode of high heat flux problem.
Deficiency of the Micro-channel Liquid-cooling Cold Plate on design and processes, it have impact on its answering in electronic radiation equipment cooling field
With and development.
First in design aspect, since Tucherman etc. proposes microchannel heat dissipation technology, it is rectangle to continue to use section always
Straight parallel shape microchannel, it is simple in construction, but passage easily blocks, and is restricted its heat-sinking capability, and flowed in passage
Temperature streamwise increases, and the assignment of traffic between each runner is uneven, it is difficult to ensures the uniform temperature of heating surface, influences electronics
The service behaviour of equipment.There are many bionical novel flow channel structures at present, including tree network microchannel, streamflow separation are micro- logical
Road, honeycomb type microchannel, cobweb microchannel etc..Compared with traditional straight parallel shape microchannel, this kind of biomimetic features can not
With degree improve the uniform temperature in thermal source face, and improve radiating efficiency.Therefore bionics is applied to Micro-channel Liquid-cooling Cold Plate
Design studies in have broad prospects.
Secondly in the processing of process aspect, at present liquid cold plate, mainly using split type manufacture, i.e., processed on substrate
After going out runner, formed with cover plate by welding or bolt connection, sealing inconvenience, the risk of leakage often be present, and technique is answered
It is miscellaneous, manufacturing cycle length.
The content of the invention
Present invention aim to address above mentioned problem, there is provided a kind of a kind of simple in construction, relatively low microchannel of manufacturing cost
Liquid cold plate.
In order to solve the above technical problems, the technical scheme is that：A kind of Micro-channel Liquid-cooling Cold Plate, including cold drawing base
Body, cold plate base inside are provided with inner flow passage, and it is single that inner flow passage includes flow channel entry point, runner exit and at least one microchannel
Member, micro-channel units connect with flow channel entry point and runner exit respectively, and coolant enters from flow channel entry point, passes through micro-channel units
Afterwards, flowed out from runner exit.
Preferably, the micro-channel units include left part passage, right part passage and the runner that confluxes, the both ends point for the runner that confluxes
Do not connected with left part passage and right part passage, left part passage and right part passage are symmetrical on the runner that confluxes；Left part passage includes a left side
Upper fin main channel and lower-left wing main channel, right part passage include upper right wing main channel and bottom right wing main channel；Upper left wing main channel
At least one left parallelogram rib microchannel is provided between the wing main channel of lower-left, upper left wing main channel passes through left parallel four side
Shape rib microchannel is connected with lower-left wing main channel, and it is parallel that at least one right side is provided between upper right wing main channel and bottom right wing main channel
Quadrangle rib microchannel, upper right wing main channel are connected by right parallelogram rib microchannel with bottom right wing main channel.
Preferably, the left parallelogram rib microchannel and right parallelogram rib microchannel respectively with horizontal direction
Maximum angle be 120 degree.
Preferably, the horizontal cross-section of the micro-channel units is in butterfly.
Preferably, axisymmetrical arrangement of the upper left wing main channel and lower-left wing main channel along the runner that confluxes.
Preferably, the flow area of the upper left wing main channel is gradually reduced with the flow direction of coolant.
Preferably, axisymmetrical arrangement of the upper right wing main channel and bottom right wing main channel along the runner that confluxes.
Preferably, the left part passage is connected with flow channel entry point.
Preferably, the right part passage is connected with runner exit.
Preferably, the flow channel entry point and runner exit are centrosymmetric arrangement on the center of cold plate base, and runner enters
The bearing of trend of mouth is parallel and opposite with the bearing of trend of runner exit.
The beneficial effects of the invention are as follows：
1st, a kind of Micro-channel Liquid-cooling Cold Plate provided by the present invention, using bionic design, butterfly wing micro-channel units is imitated, are led to
Rational assignment of traffic is crossed, changes the flow direction mode of coolant, turbulence level increase, is thinned boundary layer thickness, by
Hot face uniform temperature and heat exchange efficiency are obtained for raising and strengthened；
2nd, a kind of Micro-channel Liquid-cooling Cold Plate provided by the present invention, using 3D printing integrated molding technology, production is shortened
The product R＆D cycle；
3rd, a kind of Micro-channel Liquid-cooling Cold Plate provided by the present invention, according to the difference for applying thermal force, imitate in butterfly wing unit
Parallel rib microchannel quantity can carry out it is corresponding thin or close optimize and revise, the quantity for imitating butter-fly like unit in addition also may be used
With increase and decrease, there is certain flexibility.
Brief description of the drawings
Fig. 1 is a kind of structural representation of Micro-channel Liquid-cooling Cold Plate of the present invention；
Fig. 2 is a kind of principle schematic of Micro-channel Liquid-cooling Cold Plate of the present invention；
Description of reference numerals：1st, cold plate base；2nd, inner flow passage；21st, flow channel entry point；22nd, runner exit；23rd, microchannel
Unit；24th, left part passage；25th, right part passage；26th, conflux runner；241st, upper left wing main channel；242nd, lower-left wing main channel；
243rd, left parallelogram rib microchannel；251st, upper right wing main channel；252nd, bottom right wing main channel；253rd, right parallelogram rib
Microchannel；
Embodiment
The present invention is described further with specific embodiment below in conjunction with the accompanying drawings：
As depicted in figs. 1 and 2, a kind of Micro-channel Liquid-cooling Cold Plate provided by the invention, including cold plate base 1, cold plate base 1
Inside is provided with inner flow passage 2, and inner flow passage 2 includes flow channel entry point 21, runner exit 22 and at least one micro-channel units 23, micro-
Channel unit 23 connects with flow channel entry point 21 and runner exit 22 respectively, and coolant enters from flow channel entry point 21, passes through microchannel
After unit 23, flowed out from runner exit 22, the horizontal cross-section of micro-channel units 23 is in butterfly, flow channel entry point 21 and runner exit 22
Connected respectively with external environment condition.
Micro-channel units 23 include left part passage 24, right part passage 25 and the runner 26 that confluxes, the both ends point for the runner 26 that confluxes
Do not connected with left part passage 24 and right part passage 25, left part passage 24 and right part passage 25 are symmetrical on the runner 26 that confluxes；Left part
Passage 24 includes upper left wing main channel 241 and lower-left wing main channel 242, and right part passage 25 includes upper right wing main channel 251 and the right side
Underwing main channel 252；At least one left parallelogram rib is provided between upper left wing main channel 241 and lower-left wing main channel 242
Microchannel 243, upper left wing main channel 241 are connected by left parallelogram rib microchannel 243 with lower-left wing main channel 242, right
At least one right parallelogram rib microchannel 253, upper right wing are provided between upper fin main channel 251 and bottom right wing main channel 252
Main channel 251 is connected by right parallelogram rib microchannel 253 with bottom right wing main channel 252, in the present embodiment, microchannel
The number of unit 23 be 3, micro-channel units 23 are sequentially communicated, the left part passage 24 of middle micro-channel units 23 with upper one
The right part passage 25 of micro-channel units 23 connects, right part passage 25 and the next micro-channel units of middle micro-channel units 23
23 left part passage connection.
In the present embodiment, a kind of Micro-channel Liquid-cooling Cold Plate of the present invention, using 3D printing technique integrated molding, 3D printing
Technology is prior art, makees specified otherwise herein.
Left parallelogram rib microchannel 243 and right parallelogram rib microchannel 253 respectively with horizontal direction most
Mitre is 120 degree.The axisymmetrical arrangement of upper right wing main channel 251 and bottom right wing main channel 252 along the runner 26 that confluxes, it is left
The axisymmetrical arrangement of upper fin main channel 241 and lower-left wing main channel 242 along the runner 26 that confluxes, the stream of upper left wing main channel 241
Road area is gradually reduced with the flow direction of coolant；The runner of upper left wing main channel 241 is highly 1.5mm, with cooling
Liquid flow direction is gradually reduced the width of runner, and the width of runner is changed by arithmetic progression, and the amplitude of reduction is 0.2mm, runner
Sectional area is also with being gradually reduced.
Left parallelogram rib microchannel 243 is arranged symmetrically with right parallelogram rib microchannel 253 and structure is identical, left
The height of parallelogram rib microchannel 243 and right parallelogram rib microchannel 253 is 1.5mm.
In the present embodiment, left parallelogram rib microchannel 243 is multiple, respectively positioned at the both sides for the runner 26 that confluxes and
Be arranged symmetrically, positioned at left parallelogram rib microchannel 243 of the runner 26 with one side of confluxing be arranged in parallel and between at intervals of
0.4mm。
Left part passage 24 is connected with flow channel entry point 21, and right part passage 25 is connected with runner exit 22.Flow channel entry point 21
It is centrosymmetric arrangement on the center of cold plate base 1 with runner exit 22, the bearing of trend and runner exit of flow channel entry point 21
22 bearing of trend is parallel and opposite.
In the present embodiment, material is aluminium alloy (Al6063-T5) used by a kind of Micro-channel Liquid-cooling Cold Plate of the present invention
Material, aluminium alloy (Al6063-T5) material can make the present invention have good structural and thermal conductivity.
One of ordinary skill in the art will be appreciated that embodiment described here is to aid in reader and understands this hair
Bright principle, it should be understood that protection scope of the present invention is not limited to such especially statement and embodiment.This area
Those of ordinary skill can make according to these technical inspirations disclosed by the invention various does not depart from the other each of essence of the invention
The specific deformation of kind and combination, these deform and combined still within the scope of the present invention.
Claims (10)
- A kind of 1. Micro-channel Liquid-cooling Cold Plate, it is characterised in that：Including cold plate base (1), inside stream is provided with inside cold plate base (1) Road (2), inner flow passage (2) include flow channel entry point (21), runner exit (22) and at least one micro-channel units (23), microchannel Unit (23) connects with flow channel entry point (21) and runner exit (22) respectively, and coolant enters from flow channel entry point (21), by micro- After channel unit (23), flowed out from runner exit (22).
- A kind of 2. Micro-channel Liquid-cooling Cold Plate according to claim 1, it is characterised in that：The micro-channel units (23) include Left part passage (24), right part passage (25) and the runner that confluxes (26), the both ends of the runner that confluxes (26) respectively with left part passage (24) Connected with right part passage (25), left part passage (24) and right part passage (25) are symmetrical on the runner that confluxes (26)；Left part passage (24) upper left wing main channel (241) and lower-left wing main channel (242) are included, right part passage (25) includes upper right wing main channel And bottom right wing main channel (252) (251)；It is provided between upper left wing main channel (241) and lower-left wing main channel (242) at least one Left parallelogram rib microchannel (243), upper left wing main channel (241) pass through left parallelogram rib microchannel (243) and a left side Underwing main channel (242) connects, and is provided between upper right wing main channel (251) and bottom right wing main channel (252) at least one right flat Row quadrangle rib microchannel (253), upper right wing main channel (251) pass through right parallelogram rib microchannel (253) and bottom right wing Main channel (252) connects.
- A kind of 3. Micro-channel Liquid-cooling Cold Plate according to claim 2, it is characterised in that：The left parallelogram rib is micro- logical Road (243) and right parallelogram rib microchannel (253) are respectively 120 degree with the maximum angle in horizontal direction.
- A kind of 4. Micro-channel Liquid-cooling Cold Plate according to claim 2, it is characterised in that：The water of the micro-channel units (23) Plane section is in butterfly.
- A kind of 5. Micro-channel Liquid-cooling Cold Plate according to claim 2, it is characterised in that：The upper left wing main channel (241) With axisymmetrical arrangement of the lower-left wing main channel (242) along the runner (26) that confluxes.
- A kind of 6. Micro-channel Liquid-cooling Cold Plate according to claim 5, it is characterised in that：The upper left wing main channel (241) Flow area be gradually reduced with the flow direction of coolant.
- A kind of 7. Micro-channel Liquid-cooling Cold Plate according to claim 2, it is characterised in that：The upper right wing main channel (251) With axisymmetrical arrangement of the bottom right wing main channel (252) along the runner (26) that confluxes.
- A kind of 8. Micro-channel Liquid-cooling Cold Plate according to claim 2, it is characterised in that：The left part passage (24) and runner Entrance (21) is connected.
- A kind of 9. Micro-channel Liquid-cooling Cold Plate according to claim 2, it is characterised in that：The right part passage (25) and runner Outlet (22) is connected.
- A kind of 10. Micro-channel Liquid-cooling Cold Plate according to claim 1, it is characterised in that：The flow channel entry point (21) and stream Road exports (22) and is centrosymmetric arrangement on the center of cold plate base (1), and the bearing of trend and runner of flow channel entry point (21) go out The bearing of trend of mouth (22) is parallel and opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710845279.7A CN107677152B (en) | 2017-09-19 | 2017-09-19 | Microchannel liquid cooling board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710845279.7A CN107677152B (en) | 2017-09-19 | 2017-09-19 | Microchannel liquid cooling board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107677152A true CN107677152A (en) | 2018-02-09 |
| CN107677152B CN107677152B (en) | 2020-06-19 |
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ID=61136501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710845279.7A Active CN107677152B (en) | 2017-09-19 | 2017-09-19 | Microchannel liquid cooling board |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109906021A (en) * | 2019-03-22 | 2019-06-18 | 陕西黄河集团有限公司 | Cold plate and radiator for radar |
| CN110505793A (en) * | 2019-08-23 | 2019-11-26 | 昆明理工大学 | A kind of micro-channel device and method of the reinforcing heat convection based on magnetic force |
| CN110690525A (en) * | 2019-08-27 | 2020-01-14 | 江苏大学 | Chute interactive necking channel liquid cooling plate |
| CN110854466A (en) * | 2019-10-29 | 2020-02-28 | 江苏大学 | Interval interactive microchannel liquid cooling plate |
| CN110935407A (en) * | 2019-12-03 | 2020-03-31 | 广东省新材料研究所 | Micro-channel reactor and manufacturing method thereof |
| CN111132521A (en) * | 2020-01-08 | 2020-05-08 | 中国船舶重工集团公司第七二四研究所 | T-shaped longitudinal micro-channel cold plate with inclined channel |
| CN111741645A (en) * | 2020-05-26 | 2020-10-02 | 东南大学 | Heat dissipation device of wind turbine generator frequency converter |
| CN112654217A (en) * | 2020-12-22 | 2021-04-13 | 四川大学 | Close-open gradually-expanding microchannel liquid cooling plate |
| CN112867358A (en) * | 2021-01-18 | 2021-05-28 | 中国船舶重工集团公司第七二四研究所 | Micro-channel cold plate for reducing instability of two-phase flow of parallel flow channel |
| CN113540622A (en) * | 2021-07-09 | 2021-10-22 | 浙江大学 | Two-phase flow cold plate with bionic structure |
| CN113613463A (en) * | 2021-07-31 | 2021-11-05 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | General cold plate of airborne through liquid cooling module |
| CN115715038A (en) * | 2022-11-28 | 2023-02-24 | 南京沃森精密制造科技有限公司 | Cooling device of induction heating equipment |
| CN115876010A (en) * | 2022-03-18 | 2023-03-31 | 山东大学 | Loop heat pipe formed by combination |
| CN115993065A (en) * | 2022-03-18 | 2023-04-21 | 山东大学 | Fishbone-shaped micro-channel evaporator and loop heat pipe thereof |
| CN116007417A (en) * | 2022-03-18 | 2023-04-25 | 山东大学 | Fusiform array fin evaporator and loop heat pipe thereof |
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| CN2699434Y (en) * | 2004-03-12 | 2005-05-11 | 南京理工大学 | Micro pipe network heat exchanger imitating mammal's respiratory system |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109906021A (en) * | 2019-03-22 | 2019-06-18 | 陕西黄河集团有限公司 | Cold plate and radiator for radar |
| CN110505793A (en) * | 2019-08-23 | 2019-11-26 | 昆明理工大学 | A kind of micro-channel device and method of the reinforcing heat convection based on magnetic force |
| CN110690525B (en) * | 2019-08-27 | 2022-07-01 | 江苏大学 | Chute interactive necking channel liquid cooling plate |
| CN110690525A (en) * | 2019-08-27 | 2020-01-14 | 江苏大学 | Chute interactive necking channel liquid cooling plate |
| CN110854466A (en) * | 2019-10-29 | 2020-02-28 | 江苏大学 | Interval interactive microchannel liquid cooling plate |
| CN110854466B (en) * | 2019-10-29 | 2022-07-01 | 江苏大学 | Interval interactive microchannel liquid cooling plate |
| CN110935407A (en) * | 2019-12-03 | 2020-03-31 | 广东省新材料研究所 | Micro-channel reactor and manufacturing method thereof |
| CN111132521A (en) * | 2020-01-08 | 2020-05-08 | 中国船舶重工集团公司第七二四研究所 | T-shaped longitudinal micro-channel cold plate with inclined channel |
| CN111741645A (en) * | 2020-05-26 | 2020-10-02 | 东南大学 | Heat dissipation device of wind turbine generator frequency converter |
| CN112654217A (en) * | 2020-12-22 | 2021-04-13 | 四川大学 | Close-open gradually-expanding microchannel liquid cooling plate |
| CN112867358A (en) * | 2021-01-18 | 2021-05-28 | 中国船舶重工集团公司第七二四研究所 | Micro-channel cold plate for reducing instability of two-phase flow of parallel flow channel |
| CN113540622A (en) * | 2021-07-09 | 2021-10-22 | 浙江大学 | Two-phase flow cold plate with bionic structure |
| CN113613463A (en) * | 2021-07-31 | 2021-11-05 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | General cold plate of airborne through liquid cooling module |
| CN113613463B (en) * | 2021-07-31 | 2023-09-26 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | General cold plate of airborne through liquid cooling module |
| CN115876010A (en) * | 2022-03-18 | 2023-03-31 | 山东大学 | Loop heat pipe formed by combination |
| CN115993065A (en) * | 2022-03-18 | 2023-04-21 | 山东大学 | Fishbone-shaped micro-channel evaporator and loop heat pipe thereof |
| CN116007417A (en) * | 2022-03-18 | 2023-04-25 | 山东大学 | Fusiform array fin evaporator and loop heat pipe thereof |
| CN115876010B (en) * | 2022-03-18 | 2024-05-10 | 山东大学 | Loop heat pipe formed by combination |
| CN115993065B (en) * | 2022-03-18 | 2024-05-14 | 山东大学 | Fishbone-shaped micro-channel evaporator and loop heat pipe thereof |
| CN116007417B (en) * | 2022-03-18 | 2024-05-28 | 山东大学 | Fusiform array fin evaporator and loop heat pipe thereof |
| CN115715038A (en) * | 2022-11-28 | 2023-02-24 | 南京沃森精密制造科技有限公司 | Cooling device of induction heating equipment |
| CN115715038B (en) * | 2022-11-28 | 2023-10-31 | 南京沃森精密制造科技有限公司 | Cooling device of induction heating equipment |
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