CN110444519A - A kind of micro-channel heat exchanger being connected with multiple flow passages - Google Patents
A kind of micro-channel heat exchanger being connected with multiple flow passages Download PDFInfo
- Publication number
- CN110444519A CN110444519A CN201910561198.3A CN201910561198A CN110444519A CN 110444519 A CN110444519 A CN 110444519A CN 201910561198 A CN201910561198 A CN 201910561198A CN 110444519 A CN110444519 A CN 110444519A
- Authority
- CN
- China
- Prior art keywords
- section
- spaced walls
- micro
- runner
- heat exchanger
- 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
Links
- 239000012530 fluid Substances 0.000 claims description 15
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004377 microelectronic Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/367—Cooling facilitated by shape of device
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to heat sink technology field more particularly to a kind of micro-channel heat exchangers being connected with multiple flow passages.Including microchannel ontology 1, the microchannel ontology 1 is the perforative rectangular cavities structure in both ends, the intrinsic cavity in microchannel includes dispensing section (A), multi-runner heat exchanging section (B), afflux section (C), the cavity bottom of the multi-runner heat exchanging section (B), dispensing section (A) and afflux section (C) is provided with a plurality of spaced walls 2, and the cavity horizontal subdivision of multi-runner heat exchanging section (B) is gone out a plurality of straight channel (3) by a plurality of spaced walls 2；Cavity length is identical therewith for the spaced walls 2 being arranged in the multi-runner heat exchanging section (B), and 2 both ends of spaced walls in multi-runner heat exchanging section (B) are bonded with the spaced walls 2 of dispensing section (A) and afflux section (C) respectively, the length of cavity where the length of the spaced walls 2 of the dispensing section (A) and afflux section (C) is respectively less than it.
Description
Technical field
The present invention relates to heat sink technology field more particularly to a kind of micro-channel heat exchangers being connected with multiple flow passages.
Background technique
With the fast development of microelectronics industry, various Related products are sent out towards the direction of Highgrade integration and micromation
Exhibition, during highdensity integrated circuit operation, if the heat of generation is not taken away in time, excessively high temperature will affect element
Normal operation, shorten service life.To guarantee the reliable and stable work of microelectronic product, it is desirable that heat exchanger has small in size, again
Amount is light, is suitable for compact package, the features such as heat dissipation performance is high, and micro-channel heat exchanger comes into being.The list of micro-channel heat exchanger
Meta structure size is very small, therefore the thermal resistance of each heat exchange unit and heat exchange environment is extremely low, has high heat exchange efficiency, excellent
Average temperature performance, can individually exchange heat for micro-structure, and operational reliability is high.Therefore be widely used in computer cluster,
The electronic element radiatings such as database instrument and equipment, cloud computing center are also used for the heat dissipation of various micro-structures.Current is micro- logical
Road heat exchanger structure is mainly the microchannel structure such as the rectangle of parallel arrangement, triangle, trapezoidal.These traditional forms it is parallel micro-
Channel after fluid enters parallel microchannels, while carrying out the development of flow boundary layer and thermal boundary layer.When thermal boundary layer also not
Reaching fully developed zone domain, heat transfer coefficient is all bigger, and heat transfer property is relatively good, but with the expansion of flowing, heat transfer coefficient
Decline rapidly, so as to cause the reduction of apparent heat transfer property, enhanced heat transfer effect is extremely limited.In addition, traditional microchannel is changed
Hot device is understood in the case where runner is too long to be boiled due to central region prior to entrance, and pressure increased dramatically resistance in Bubble Growth Process
The subsequent fluid that breaks enters heat exchanger, has seriously endangered the stable operation of micro-channel heat exchanger.When multiple runners are used in parallel,
The runner at middle part can obtain flow obviously higher than rim path, and middle part runner is made to be not easy boiling heat transfer, and rim path then has
The danger dryouied.Meanwhile electronic component different parts temperature is not necessarily identical, cannot be obtained using traditional micro-channel heat exchanger
Good uniform temperature.The present invention proposes a kind of micro-channel heat exchanger being connected with multiple flow passages, by being arranged in heat exchanger leading portion
Fluid uniform divided flows are obtained more dispersed fluid flow by dispensing section, and are connected mutually between multiple runners, stream
Body will flow into adjacent channels by fork at random during the motion, destroy fully developed section boundary layer, and enhancing exchanges heat, and
The runner of interconnection can be such that the temperature difference between each runner reduces, and obtain better uniform temperature.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, adapt to reality and need, and provide a kind of with multiple flow passages phase
The micro-channel heat exchanger of connection.
In order to achieve the object of the present invention, the technical solution adopted by the present invention are as follows: it is a kind of be connected with multiple flow passages it is micro-
Channel heat exchanger, including microchannel ontology 1, the microchannel ontology 1 are the perforative rectangular cavities structure in both ends, the microchannel
Intrinsic cavity includes dispensing section (A), multi-runner heat exchanging section (B), afflux section (C), the multi-runner heat exchanging section (B), distribution
The cavity bottom of section (A) and afflux section (C) is provided with a plurality of spaced walls 2, and a plurality of spaced walls 2 are by multi-runner heat exchanging section
(B) cavity horizontal subdivision goes out a plurality of straight channel (3)；The spaced walls 2 being arranged in the multi-runner heat exchanging section (B) cavity therewith
Length is identical, and the spaced walls with dispensing section (A) and afflux section (C) respectively of 2 both ends of spaced walls in multi-runner heat exchanging section (B)
The length of cavity where the length of the spaced walls 2 of 2 fittings, the dispensing section (A) and afflux section (C) is respectively less than it.
Each straight channel (3) is of same size.
2 length of spaced walls in the afflux section (C) is identical；2 length of next door is different for seeing in the dispensing section (A).
The length of spaced walls in the dispensing section (A) is uniformly reduced from centre to two sides by the cavity of dispensing section (A) point
Be cut into multiple length it is different with chute 4.
Spaced walls in the multi-runner heat exchanging section (B) are formed by multiple intermittent special-shaped spaced walls (5) are evenly distributed；Institute
Stating the spaced walls in dispensing section (A) and afflux section (C) is consecutive intervals wall.
Every special-shaped spaced walls 5 are made of the identical isosceles trapezoid spacer block of multiple sizes, and each spacer block
Spacer block bevel edge adjacent thereto is parallel to each other, so that a plurality of discontinuous inclined flow passage (6) is formed, the abnormity interval of adjacent channels
Wall (5) is mutually symmetrical with, and told afflux section (C) is in rearmost end, converges all fluids.
The width of the straight channel (3) is 1-1.5 times of inclined flow passage.
The spaced walls end of the dispensing section (A) is arc-shaped structure.
The beneficial effects of the present invention are:
The present invention provides a kind of micro-channel heat exchangers being connected with multiple flow passages, by the dispensing section of front end to fluid
It is shunted, can be to avoid edge and the problem of middle part runner mass flow discrepancy, interconnection can disturb entire flow field between runner, break
The bad boundary layer for being unfavorable for heat transfer, and the temperature difference is reduced, guarantee the temperature uniformity of element whole surface, avoids some position
Temperature is excessively high to be burnt out.When fluid flows through entire heat exchanger, multiple portions are dispersed into leading portion, and mutual in middle part heat exchanging segment
Fusion collision, enhancing heat exchange.
Detailed description of the invention
The present invention is described further with case study on implementation with reference to the accompanying drawing.
Fig. 1 is overall structure of the present invention；
Fig. 2 is schematic diagram of internal structure of the invention；
Fig. 3 is partial enlargement diagram.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples:
Referring to Fig. 1-3.
It is described micro- the invention discloses a kind of micro-channel heat exchanger being connected with multiple flow passages, including microchannel ontology 1
Channel body 1 is the perforative rectangular cavities structure in both ends, and the intrinsic cavity in microchannel includes dispensing section (A), multiple flow passages
The cavity bottom of heat exchanging segment (B), afflux section (C), the multi-runner heat exchanging section (B), dispensing section (A) and afflux section (C) is all provided with
A plurality of spaced walls 2 are equipped with, the cavity horizontal subdivision of multi-runner heat exchanging section (B) is gone out a plurality of straight channel by a plurality of spaced walls 2
(3)；Cavity length is identical therewith for the spaced walls 2 being arranged in the multi-runner heat exchanging section (B), and in multi-runner heat exchanging section (B)
2 both ends of spaced walls be bonded respectively with the spaced walls 2 of dispensing section (A) and afflux section (C), the dispensing section (A) and afflux
The length of cavity where the length of the spaced walls 2 of section (C) is respectively less than it.
Each straight channel (3) is of same size.
2 length of spaced walls in the afflux section (C) is identical；2 length of next door is different for seeing in the dispensing section (A).
The length of spaced walls in the dispensing section (A) is uniformly reduced from centre to two sides by the cavity of dispensing section (A) point
Be cut into multiple length it is different with chute 4.
Spaced walls in the multi-runner heat exchanging section (B) are formed by multiple intermittent special-shaped spaced walls (5) are evenly distributed；Institute
Stating the spaced walls in dispensing section (A) and afflux section (C) is consecutive intervals wall.
Every special-shaped spaced walls 5 are made of the identical isosceles trapezoid spacer block of multiple sizes, and each spacer block
Spacer block bevel edge adjacent thereto is parallel to each other, so that a plurality of discontinuous inclined flow passage (6) is formed, the abnormity interval of adjacent channels
Wall (5) is mutually symmetrical with, and told afflux section (C) is in rearmost end, converges all fluids.
The width of the straight channel (3) is 1-1.5 times of inclined flow passage.
The spaced walls end of the dispensing section (A) is arc-shaped structure.
When fluid enters dispensing section (A), fluid is more uniformly divided into fraction, is flowed in distributing trough, is gone forward side by side
Enter corresponding straight channel, into after straight channel, fluid is flowed to by three, and adjacent stream is flowed by the inclined flow passage of both sides
Road, or continue straight channel (middle flowing, at the same adjacent straight channel also have fluid by fork inflow, the stream of different runners
Body is mutually merged by fork, effectively disturbs flow field, destroys boundary layer, while the hot-fluid that different runners are subject to may be different
Sample, therefore the fluid of different temperatures exchanges heat, available preferable temperature uniformity when fusion.
The micro-channel heat exchanger with multiple flow passages connection can be adapted to different by the width and length for changing itself
Heat exchange demand.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, are similarly included in
In scope of patent protection of the invention.
Claims (8)
1. a kind of micro-channel heat exchanger being connected with multiple flow passages, including microchannel ontology (1), it is characterised in that: described micro-
Channel body (1) is the perforative rectangular cavities structure in both ends, and the intrinsic cavity in microchannel includes dispensing section (A), multithread
The cavity bottom of road heat exchanging segment (B), afflux section (C), the multi-runner heat exchanging section (B), dispensing section (A) and afflux section (C) is equal
It is provided with a plurality of spaced walls (2), a plurality of spaced walls (2) go out the cavity horizontal subdivision of multi-runner heat exchanging section (B) a plurality of straight
Runner (3)；Cavity length is identical therewith for the spaced walls (2) being arranged in the multi-runner heat exchanging section (B), and multi-runner heat exchanging section
(B) spaced walls (2) both ends in are bonded with the spaced walls (2) of dispensing section (A) and afflux section (C) respectively, the dispensing section (A)
And the length of the spaced walls (2) of afflux section (C) is respectively less than the length of its place cavity.
2. a kind of micro-channel heat exchanger being connected with multiple flow passages, including microchannel ontology, it is characterised in that: each described straight
Runner (3) is of same size.
3. a kind of micro-channel heat exchanger being connected with multiple flow passages according to claim 1, it is characterised in that: the collection
Spaced walls (2) length flowed in section (C) is identical；Next door (2) length difference is seen in the dispensing section (A).
4. a kind of micro-channel heat exchanger being connected with multiple flow passages according to claim 3, it is characterised in that: described point
Length with the spaced walls in section (A) is uniformly reduced from centre to two sides is divided into multiple length not for the cavity of dispensing section (A)
Same matches chute (4).
5. a kind of micro-channel heat exchanger being connected with multiple flow passages according to claim 1, it is characterised in that: described more
Spaced walls in runner heat exchanging segment (B) are formed by multiple intermittent special-shaped spaced walls (5) are evenly distributed；The dispensing section (A) with
And the spaced walls in afflux section (C) are consecutive intervals wall.
6. a kind of micro-channel heat exchanger being connected with multiple flow passages according to claim 5, it is characterised in that: every institute
It states special-shaped spaced walls (5) to be made of the identical isosceles trapezoid spacer block of multiple sizes, and between each spacer block is adjacent thereto
Spacer block bevel edge is parallel to each other, to form a plurality of discontinuous inclined flow passage (6), the special-shaped spaced walls (5) of adjacent channels are mutually opposite
Claim, told afflux section (C) is in rearmost end, converges all fluids.
7. a kind of micro-channel heat exchanger being connected with multiple flow passages according to claim 5, it is characterised in that: described straight
The width of runner (3) is 1-1.5 times of inclined flow passage.
8. a kind of micro-channel heat exchanger being connected with multiple flow passages according to claim 5, it is characterised in that: described point
Spaced walls end with section (A) is arc-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910561198.3A CN110444519A (en) | 2019-06-26 | 2019-06-26 | A kind of micro-channel heat exchanger being connected with multiple flow passages |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910561198.3A CN110444519A (en) | 2019-06-26 | 2019-06-26 | A kind of micro-channel heat exchanger being connected with multiple flow passages |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110444519A true CN110444519A (en) | 2019-11-12 |
Family
ID=68428715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910561198.3A Pending CN110444519A (en) | 2019-06-26 | 2019-06-26 | A kind of micro-channel heat exchanger being connected with multiple flow passages |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110444519A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030213580A1 (en) * | 2002-05-20 | 2003-11-20 | The Board Of Trustees Of The University Of Illinoi S | Flexible microchannel heat exchanger |
| CN101691981A (en) * | 2009-07-23 | 2010-04-07 | 三花丹佛斯（杭州）微通道换热器有限公司 | Multi-channel heat exchanger with improved refrigerant fluid distribution uniformity |
| CN103954162A (en) * | 2014-05-16 | 2014-07-30 | 中国科学院工程热物理研究所 | Low resistance hydraulic cavitation structure with microchannel heat exchange enhancing function |
| CN105683696A (en) * | 2013-10-17 | 2016-06-15 | 韩国原子力研究院 | Heat exchanger for steam generator and steam generator comprising same |
| CN106152836A (en) * | 2016-05-11 | 2016-11-23 | 洛阳明远石化技术有限公司 | A kind of U-shaped runner plate type heat exchanger |
| CN107611524A (en) * | 2017-08-30 | 2018-01-19 | 江苏福瑞士电池科技有限公司 | Liquid heat exchange plate is used in temperature of powered cell regulation |
| CN210778560U (en) * | 2019-06-26 | 2020-06-16 | 南昌大学 | Microchannel heat exchanger with multiple flow channels are UNICOM |
-
2019
- 2019-06-26 CN CN201910561198.3A patent/CN110444519A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030213580A1 (en) * | 2002-05-20 | 2003-11-20 | The Board Of Trustees Of The University Of Illinoi S | Flexible microchannel heat exchanger |
| CN101691981A (en) * | 2009-07-23 | 2010-04-07 | 三花丹佛斯（杭州）微通道换热器有限公司 | Multi-channel heat exchanger with improved refrigerant fluid distribution uniformity |
| CN105683696A (en) * | 2013-10-17 | 2016-06-15 | 韩国原子力研究院 | Heat exchanger for steam generator and steam generator comprising same |
| CN103954162A (en) * | 2014-05-16 | 2014-07-30 | 中国科学院工程热物理研究所 | Low resistance hydraulic cavitation structure with microchannel heat exchange enhancing function |
| CN106152836A (en) * | 2016-05-11 | 2016-11-23 | 洛阳明远石化技术有限公司 | A kind of U-shaped runner plate type heat exchanger |
| CN107611524A (en) * | 2017-08-30 | 2018-01-19 | 江苏福瑞士电池科技有限公司 | Liquid heat exchange plate is used in temperature of powered cell regulation |
| CN210778560U (en) * | 2019-06-26 | 2020-06-16 | 南昌大学 | Microchannel heat exchanger with multiple flow channels are UNICOM |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Ahmed et al. | Optimization of thermal design of heat sinks: A review | |
| Chai et al. | Thermal-hydraulic performance of interrupted microchannel heat sinks with different rib geometries in transverse microchambers | |
| Ansari et al. | Hotspot thermal management using a microchannel-pinfin hybrid heat sink | |
| Shen et al. | Forced convection and heat transfer of water-cooled microchannel heat sinks with various structured metal foams | |
| Escher et al. | Efficiency of optimized bifurcating tree-like and parallel microchannel networks in the cooling of electronics | |
| CN208063649U (en) | Heat radiation structure | |
| Li et al. | Numerical optimization on microchannel flow and heat transfer performance based on field synergy principle | |
| Rajalingam et al. | Effect of shape and arrangement of micro-structures in a microchannel heat sink on the thermo-hydraulic performance | |
| Ma et al. | An experimental study on hydrothermal performance of microchannel heat sinks with 4-ports and offset zigzag channels | |
| CN108112218B (en) | A fractal micro-channel cold plate with two-way flow path | |
| Ju et al. | Numerical investigation of a novel manifold micro-pin-fin heat sink combining chessboard nozzle-jet concept for ultra-high heat flux removal | |
| KR20120017029A (en) | Grid heatsink | |
| Alfieri et al. | Computational modeling of vortex shedding in water cooling of 3D integrated electronics | |
| CN104979307B (en) | Microchannel heat sink cools down multichip system device | |
| CN113437031B (en) | Embedded microchannel heat abstractor based on liquid metal | |
| Wu et al. | Jet microchannel with sawtooth wall for efficient cooling of high-power electronics | |
| Dąbrowski et al. | Selected studies of flow maldistribution in a minichannel plate heat exchanger | |
| Yang et al. | Numerical study on thermal and hydraulic performances of a hybrid manifold microchannel with bifurcations for electronics cooling | |
| Chen et al. | Hydrodynamic and thermal performance of in-line strip-fin manifold microchannel heat sink | |
| CN105202955B (en) | A kind of heat pipe of external setting fin | |
| WO2012160564A1 (en) | Heat exchanger device | |
| Deng et al. | Numerical and experimental study on cooling high power chips of data centers using double-side cooling module based on mini-channel heat sink | |
| Liu et al. | Improved thermal performance of new staggered double P-type minichannel heat exchangers | |
| Raza et al. | A novel microchannel-twisted pinfin hybrid heat sink for hotspot mitigation | |
| CN114521093B (en) | Unit flow path, heat exchanger and liquid cooling plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |