CN105338796A - Method and device for enhancing convective heat transfer intensity of fluid in liquid cooling plate - Google Patents
Method and device for enhancing convective heat transfer intensity of fluid in liquid cooling plate Download PDFInfo
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- CN105338796A CN105338796A CN201510893196.6A CN201510893196A CN105338796A CN 105338796 A CN105338796 A CN 105338796A CN 201510893196 A CN201510893196 A CN 201510893196A CN 105338796 A CN105338796 A CN 105338796A
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Abstract
The invention discloses a method and device for enhancing convective heat transfer intensity of fluid in a liquid cooling plate. According to the method, a plurality of sawtooth-shaped protrusions are arranged on a bottom plate of a liquid cooling plate flow channel. According to the method, the sawtooth-shaped protrusions which are arranged in a fork mode can enhance flow disturbance as well as effectively disturb a boundary layer, so that convective heat transfer is reinforced, and the cooling effect of the liquid cooling plate is improved.
Description
Technical field
The present invention relates to Cooling Technology of Electronic Device field, be specifically related to a kind of method and apparatus strengthening liquid cold plate internal flow convection heat transfer intensity.
Background technology
The dimension volume of electronic equipment after electronic devices and components and assembling thereof is more and more less, and corresponding integration density increases greatly, and high heat flux electronic equipment is formed, and will reach a high degree with development trend faster.The thing followed is the sharp increase of electronic equipment density of heat flow rate, and the thermal design for electronic equipment is proposed new challenge by this.
Liquid cold plate is widely used in onboard modules and server module with the feature of its high efficient heat exchanging, liquid cold plate main heat transfer path is as follows: the heat that heater element produces by the lands conduct on cold drawing substrate to base lower surface, upper surface of base plate is conducted to again, eventually through the heat convection of upper surface of base plate and cooling fluid by heat loss by base lower surface.
Liquid cold plate internal heat transfer mode is mainly heat convection, affect the many factors of heat convection, comprise the geometry etc. of physical properties of fluids parameter, flow velocity and heat-transfer surface, once fluid behaviour is determined, the impact of other individual factor all can be summed up as the impact of flow boundary layer, destroy boundary layer and increase the intensity that flow disturbance can strengthen heat convection, improve heat exchange efficiency.
Summary of the invention
The technical problem to be solved in the present invention is: in Convective Heat Transfer, due to fluid viscosity effect, near solid wall surface, there is the thin layer of speed and temperature generation acute variation, i.e. boundary layer, there is laminar sublayer bottom boundary layer, heat is heat conduction by the heat transfer type of laminar sublayer.Destroy boundary layer and increase flow disturbance and can effectively reduce laminar sublayer thermal conduction resistance, strengthen heat convection.For this reason, the invention provides a kind of method and apparatus strengthening liquid cold plate internal flow convection heat transfer intensity.
The technical solution adopted in the present invention is:
Strengthen a method for liquid cold plate internal flow convection heat transfer intensity, described method, by arranging some sawtooth projections on the base plate of liquid cold plate runner, to reduce flow path boundary layer bottom layer laminar sublayer thermal conduction resistance, strengthens heat convection effect.
Described sawtooth projection arranges to pitch row's mode on the base plate of cold drawing runner.Because the flow resistance of in-line arrangement structure generally will lower than fork row structure, the heat transfer property of in-line arrangement structure can decline to some extent compared with fork row, adopts fork row mode to arrange, and better can reduce flow path boundary layer bottom layer laminar sublayer thermal conduction resistance, strengthen heat convection effect.
A kind of device strengthening liquid cold plate internal flow convection heat transfer intensity, described apparatus structure comprises: cold plate base, cold drawing cover plate, cold drawing runner, sawtooth projection, wherein, cold drawing cover plate covers on cold drawing substrate, be provided with some cold drawing runners in described cold plate base, be arranged side by side in cold plate base; The base plate of described cold drawing runner is provided with some sawtooth projections.
Described sawtooth projection arranges to pitch row's mode on the base plate of cold drawing runner.
Beneficial effect of the present invention is:
The inventive method sawtooth projection can strengthen flow disturbance, effectively can destroy boundary layer, thus strengthening heat convection, improve the cooling effect of liquid cold plate.
Accompanying drawing explanation
Fig. 1 is cold drawing three-dimensional structure schematic diagram of the present invention;
Fig. 2 is cold drawing cross section structure schematic diagram of the present invention;
Fig. 3 is sawtooth projection arrangement schematic diagram;
Description of reference numerals: 1. cold plate base, 2. cold drawing cover plate, 3. cold drawing runner, 4. sawtooth projection.
Embodiment
With reference to the accompanying drawings, by embodiment, the present invention is further described:
Embodiment 1:
As shown in Figure 2, a kind of method strengthening liquid cold plate internal flow convection heat transfer intensity, described method, by arranging some sawtooth projections 4 on the base plate of liquid cold plate runner 3, to reduce flow path boundary layer bottom layer laminar sublayer thermal conduction resistance, strengthens heat convection effect.
Embodiment 2:
As shown in Figure 3, on the basis of embodiment 1, sawtooth projection 4 described in the present embodiment arranges to pitch row's mode on the base plate of cold drawing runner 3.Because the flow resistance of in-line arrangement structure generally will lower than fork row structure, the heat transfer property of in-line arrangement structure can decline to some extent compared with fork row, adopts fork row mode to arrange, and better can reduce flow path boundary layer bottom layer laminar sublayer thermal conduction resistance, strengthen heat convection effect.
Embodiment 3:
As shown in Figure 1, 2, a kind of device strengthening liquid cold plate internal flow convection heat transfer intensity, described apparatus structure comprises: cold plate base 1, cold drawing cover plate 2, cold drawing runner 3, sawtooth projection 4, wherein, cold drawing cover plate 2 covers on cold drawing substrate 1, be provided with some cold drawing runners 3 in described cold plate base 1, be arranged side by side in cold plate base 1; The base plate of described cold drawing runner 3 is provided with some sawtooth projections 4.
Embodiment 4:
As shown in Figure 3, on the basis of embodiment 3, sawtooth projection 4 described in the present embodiment arranges to pitch row's mode on the base plate of cold drawing runner 3.
Add man-hour, first, 1 cold plate base is processed 3 cold drawing runners and 4 sawtooth projections; Then, by 2 cold drawing cover plates and 1 cold plate base integrally welded.
Above execution mode is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (5)
1. one kind strengthens the method for liquid cold plate internal flow convection heat transfer intensity, it is characterized in that: described method by arranging some sawtooth projections (4) on the base plate of liquid cold plate runner (3), to reduce flow path boundary layer bottom layer laminar sublayer thermal conduction resistance, strengthen heat convection effect.
2. a kind of method strengthening liquid cold plate internal flow convection heat transfer intensity according to claim 1, is characterized in that: described sawtooth projection (4) arranges to pitch row's mode on the base plate of cold drawing runner (3).
3. because the flow resistance of in-line arrangement structure generally will lower than fork row structure, the heat transfer property of in-line arrangement structure can decline to some extent compared with fork row, adopt fork row mode to arrange, better can reduce flow path boundary layer bottom layer laminar sublayer thermal conduction resistance, strengthen heat convection effect.
4. one kind strengthens the device of liquid cold plate internal flow convection heat transfer intensity, it is characterized in that, described apparatus structure comprises: cold plate base (1), cold drawing cover plate (2), cold drawing runner (3), sawtooth projection (4), wherein, cold drawing cover plate (2) covers on cold drawing substrate (1), be provided with some cold drawing runners (3) in described cold plate base (1), be arranged side by side in cold plate base (1); The base plate of described cold drawing runner (3) is provided with some sawtooth projections (4).
5. a kind of device strengthening liquid cold plate internal flow convection heat transfer intensity according to claim 3, is characterized in that: described sawtooth projection (4) arranges to pitch row's mode on the base plate of cold drawing runner (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510893196.6A CN105338796A (en) | 2015-12-08 | 2015-12-08 | Method and device for enhancing convective heat transfer intensity of fluid in liquid cooling plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510893196.6A CN105338796A (en) | 2015-12-08 | 2015-12-08 | Method and device for enhancing convective heat transfer intensity of fluid in liquid cooling plate |
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| CN105338796A true CN105338796A (en) | 2016-02-17 |
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| CN201510893196.6A Pending CN105338796A (en) | 2015-12-08 | 2015-12-08 | Method and device for enhancing convective heat transfer intensity of fluid in liquid cooling plate |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793709A (en) * | 2017-01-18 | 2017-05-31 | 福建省中科生物股份有限公司 | A kind of cold conductive structure of efficient liquid and LED |
| CN106911058A (en) * | 2017-03-17 | 2017-06-30 | 中国科学院理化技术研究所 | A kind of " W " type runner is heat sink |
| CN107241887A (en) * | 2017-05-23 | 2017-10-10 | 华北电力大学 | A kind of micro-channel evaporator with staggeredly sawtooth pattern rib wall |
| CN109121369A (en) * | 2018-09-30 | 2019-01-01 | 西安微电子技术研究所 | A kind of indirect liquid-cooling heat radiation structure of the quickly conduction of combination fluid channel |
| US10634335B2 (en) | 2017-01-18 | 2020-04-28 | Fujian Sanan Sino-Science Photobiotech Co., Ltd. | Easily formed liquid cooling module of an LED lamp |
| CN113054291A (en) * | 2021-03-11 | 2021-06-29 | 北京临近空间飞艇技术开发有限公司 | Battery module or for system cold plate |
| CN115360849A (en) * | 2022-10-21 | 2022-11-18 | 华驰动能(北京)科技有限公司 | Flywheel energy storage system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101026948A (en) * | 2007-03-26 | 2007-08-29 | 山东省科学院能源研究所 | Single-phase ultrahigh heat flow micro-column heat exchanger |
| CN201804981U (en) * | 2010-09-14 | 2011-04-20 | 联合汽车电子有限公司 | Controller and battery cooling plate |
| CN102843897A (en) * | 2012-09-17 | 2012-12-26 | 夏侯南希 | Array cold-end plane heat pipe |
| CN203722992U (en) * | 2014-01-26 | 2014-07-16 | 中国电子科技集团公司第三十二研究所 | Embedded multi-channel heat radiation module component |
-
2015
- 2015-12-08 CN CN201510893196.6A patent/CN105338796A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101026948A (en) * | 2007-03-26 | 2007-08-29 | 山东省科学院能源研究所 | Single-phase ultrahigh heat flow micro-column heat exchanger |
| CN201804981U (en) * | 2010-09-14 | 2011-04-20 | 联合汽车电子有限公司 | Controller and battery cooling plate |
| CN102843897A (en) * | 2012-09-17 | 2012-12-26 | 夏侯南希 | Array cold-end plane heat pipe |
| CN203722992U (en) * | 2014-01-26 | 2014-07-16 | 中国电子科技集团公司第三十二研究所 | Embedded multi-channel heat radiation module component |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793709A (en) * | 2017-01-18 | 2017-05-31 | 福建省中科生物股份有限公司 | A kind of cold conductive structure of efficient liquid and LED |
| US10634335B2 (en) | 2017-01-18 | 2020-04-28 | Fujian Sanan Sino-Science Photobiotech Co., Ltd. | Easily formed liquid cooling module of an LED lamp |
| CN106911058A (en) * | 2017-03-17 | 2017-06-30 | 中国科学院理化技术研究所 | A kind of " W " type runner is heat sink |
| CN107241887A (en) * | 2017-05-23 | 2017-10-10 | 华北电力大学 | A kind of micro-channel evaporator with staggeredly sawtooth pattern rib wall |
| CN109121369A (en) * | 2018-09-30 | 2019-01-01 | 西安微电子技术研究所 | A kind of indirect liquid-cooling heat radiation structure of the quickly conduction of combination fluid channel |
| CN113054291A (en) * | 2021-03-11 | 2021-06-29 | 北京临近空间飞艇技术开发有限公司 | Battery module or for system cold plate |
| CN115360849A (en) * | 2022-10-21 | 2022-11-18 | 华驰动能(北京)科技有限公司 | Flywheel energy storage system |
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Application publication date: 20160217 |