CN104334003A - Straight runner water cooling plate with turbulence staggering step - Google Patents
Straight runner water cooling plate with turbulence staggering step Download PDFInfo
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- CN104334003A CN104334003A CN201410621436.2A CN201410621436A CN104334003A CN 104334003 A CN104334003 A CN 104334003A CN 201410621436 A CN201410621436 A CN 201410621436A CN 104334003 A CN104334003 A CN 104334003A
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- flow
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- upper cover
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides a straight runner water cooling plate with a turbulence staggering step. The straight runner water cooling plate comprises an upper cover plate, a base plate and a lower cover plate; straight runners are milled in the surfaces of the upper cover plate and the base plate; turbulence steps are designed in the straight runners; the turbulence steps in the straight runners of the upper cover plates and the base plate are arranged and staggered; the upper cover plate, the base plate and the lower cover plate are integrally welded to form a water cooling plate with a water inlet and a water outlet. According to the straight runner water cooling plate with the turbulence staggering step, the turbulence steps in the straight runners of the upper cover plate and the base plate of the water cooling plate are designed and staggered, and therefore, a liquid film at a thermal boundary layer can be effectively thinned, the heat resistance of liquid under convection can be reduced, liquid flowing in each runner is changed into a strong and disorder turbulence state, and as a result, the heat exchange effect can be raised, the heat exchange performance of the water cooling plate is improved, the heat resistance of the water cooling plate is reduced, and the difficulty at radiating of an electronic device with heat flux ranging from 13 to 15w/cm<2> is solved; the heat resistance of the water cooling plate can be less than 8K/kw when the rated flow rate is 6L/min.
Description
Technical field
The present invention relates to a kind of cooled plate, particularly one there is flow-disturbing to interlock step straight channel cooled plate.
Background technology
Along with the development of electronic technology, the performance of electronic equipment improves rapidly, and power increases rapidly, and the dissipation power of whole system also sharply increases, and the space structure of electronic equipment reduces day by day.Electronic equipment dissipation power increases and space structure miniaturization, and cause electronic equipment density of heat flow rate to increase rapidly, heat radiation also becomes increasingly conspicuous.If electronic equipment dissipating heat problem can not be solved preferably, not only can have influence on the service behaviour of equipment but also have influence on the useful life of electronic equipment.
The type of cooling of high-power electric and electronic is divided into Air flow, oil cooling and water-cooled.But under high heat flux, air-cooled being difficult to is proved effective, and volume and weight can be caused in Iarge-scale system very large, be difficult to meet general requirement.And water-cooled due to the thermal capacity of water and density large, device packing density on a heat sink also can strengthen, thus high, the compact conformation of integrated level, and large for gross calorific power and that device for power switching number is many system is just very suitable.The radiating element of its key is cooled plate.Usually in the density of heat flow rate of electronic equipment more than 5W/cm
2time, just should select the type of cooling of forcing liquid cooling.
But current cooled plate due to runner design simple, fluid is in laminar condition inside runner, does not play enhanced heat exchange effect, thus causes the heat transfer efficiency of radiator to reduce, and heat-sinking capability is poor.
Summary of the invention
In order to solve the problem, the object of the present invention is to provide and a kind ofly have flow-disturbing and to interlock the straight channel cooled plate of step, this cooled plate has higher heat transfer efficiency, and can solve density of heat flow rate is 13W/cm
2~ 15W/cm
2the heat radiation difficult point of electronic equipment, when metered flow is 6L/min, the thermal resistance of cooled plate can reach below 8K/kW.
The present invention solves the technical scheme that its problem adopts:
One has flow-disturbing and to interlock step straight channel cooled plate, and described cooled plate comprises upper cover plate, substrate and lower cover; Described upper cover plate surface is milled with straight channel, is designed with flow-disturbing step in straight channel; Described substrate surface is milled with straight channel, straight channel is designed with flow-disturbing step, flow-disturbing step in described upper cover plate straight channel and the flow-disturbing step in substrate straight channel are staggered, and described upper cover plate and substrate, lower cover and substrate are welded together to form the cooled plate of water inlet and delivery port.
In order to better realize the present invention, described substrate design has through hole, and described upper cover plate is designed with welding reinforcement, and welding reinforcement reaches base plate bottom through through hole and substrate welds together.
In order to better realize the present invention, described substrate design is fluted, and described upper cover plate is designed with rib, and when substrate and upper cover plate assemble, rib embeds groove.
In order to better realize the present invention, described substrate front side is designed with into water major trunk roads, and water inlet major trunk roads connect water inlet.After fluid enters from water inlet, flow into each straight channel via water inlet major trunk roads.
In order to better realize the present invention, described substrate back side is designed with water outlet major trunk roads, and water outlet major trunk roads connect delivery port.The fluid of each straight channel collects in water outlet major trunk roads, flows out from delivery port.
In order to better realize the present invention, described upper cover plate flow-disturbing shoulder height and substrate flow-disturbing shoulder height, close to the thermal-boundary-leyer thickness of fluid, are 0.2 ~ 0.4mm; And upper cover plate flow-disturbing step and substrate flow-disturbing step staggered designs.
In order to better realize the present invention, described flow-disturbing step shape is cuboid or cylinder.
In order to better realize the present invention, described upper cover plate and substrate and lower cover and substrate are welded together by friction stir welding.
In order to better realize the present invention, the material of described cooled plate is aluminium alloy.
Compared with prior art, tool has the following advantages and beneficial effect in the present invention:
(1) flow-disturbing step staggered designs in cooled plate upper cover plate and substrate straight channel, effective thinning thermal boundary layer thickness of liquid film, the thermal resistance of fluid when heat convection is reduced, the flowing of fluid in runner is allowed to become acutely unordered turbulence state, thus enhanced heat exchange effect, improve cooled plate heat exchange property, reduce the thermal resistance of cooled plate, solve density of heat flow rate at 13W/cm
2~ 15W/cm
2the heat radiation difficult point of electronic equipment, when metered flow is 6L/min, the thermal resistance of cooled plate can reach below 8K/kw;
(2) cooled plate structure is simple, and process, environmental protection, bearing capacity is good.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, invention is described further:
Fig. 1 is cooled plate exploded perspective view of the present invention;
Fig. 2 is cooled plate upper cover plate straight channel of the present invention and flow-disturbing step schematic diagram;
Fig. 3 is cooled plate upper cover plate rib of the present invention and welding reinforcement schematic diagram;
Fig. 4 is cooled plate substrate front side schematic diagram of the present invention;
Fig. 5 is that cooled plate upper cover plate of the present invention and substrate coordinate schematic diagram;
Fig. 6 is cooled plate substrate front side runner schematic diagram of the present invention;
Fig. 7 is cooled plate substrate back side runner schematic diagram of the present invention;
Fig. 8 is cooled plate upper cover plate of the present invention and substrate weld path schematic diagrams;
Fig. 9 is cooled plate lower cover of the present invention and substrate weld path schematic diagrams.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention are described in further detail, but embodiments of the present invention are not limited thereto.
As shown in Figure 1, one has flow-disturbing and to interlock step straight channel cooled plate, and described cooled plate comprises upper cover plate 1, substrate 2 and lower cover 3; As shown in Figure 2, described upper cover plate surface is milled with straight channel 5-1, is designed with flow-disturbing step 4-1 in straight channel 5-1; As shown in Figure 4, described substrate 2 surface is milled with straight channel 5-2, straight channel 5-2 is designed with flow-disturbing step 4-2, as shown in Figure 5, flow-disturbing step 4-1 in described upper cover plate 1 straight channel 5-1 and the flow-disturbing step 4-2 in substrate 2 straight channel 5-2 is staggered, and described upper cover plate 1 is welded together to form the cooled plate of water inlet 11 and delivery port 12 with substrate 2, lower cover 3 and substrate 2.
In order to better realize the present invention, as shown in Figure 4, described substrate 2 is designed with through hole 8, and as shown in Figure 3, described upper cover plate 1 is designed with welding reinforcement 7, and welding reinforcement 7 reaches bottom substrate 2 through through hole 8 and welds together with substrate 2.Welding bead is as shown in Fig. 9 15.
In order to better realize the present invention, as shown in Figure 4, described substrate 2 is designed with groove 10, and as shown in Figure 3, described upper cover plate 1 is designed with rib 6, and when substrate 2 and upper cover plate 1 assemble, rib 6 embeds groove 10.
In order to better realize the present invention, as shown in Figure 6, described substrate 2 frontal design has into water major trunk roads 9, and water inlet major trunk roads 9 connect water inlet 11.After fluid enters from water inlet 11, flow into each straight channel via water inlet major trunk roads 9.
In order to better realize the present invention, as shown in Figure 7, described substrate 2 reverse side is designed with water outlet major trunk roads 13, and water outlet major trunk roads 13 connect delivery port 12.The fluid of each straight channel collects in water outlet major trunk roads 13, flows out from delivery port.
In order to better realize the present invention, described upper cover plate 1 flow-disturbing step 4-1 height and substrate 2 flow-disturbing step 4-2, highly close to the thermal-boundary-leyer thickness of fluid, are 0.2 ~ 0.4mm; And upper cover plate flow-disturbing step and substrate flow-disturbing step staggered designs.
In order to better realize the present invention, described flow-disturbing step 4-1 and 4-2 shape are cuboid or cylinder.
In order to better realize the present invention, described upper cover plate 1 is welded together by friction stir welding with substrate 2 with substrate 2 and lower cover 3.Upper cover plate 1 and substrate 2 welding bead are as shown in Fig. 8 14, and lower cover 3 and substrate 2 welding bead are as shown in Fig. 9 16.
In order to better realize the present invention, the material of described cooled plate is aluminium alloy.
Fluid is inside cooled plate runner during heat convection, fluid can form thermal boundary layer at water passage surface, the thickness in boundary layer is thicker, the heat exchange between hot body and cooled plate runner will be stoped, thus reduce the heat transfer efficiency of cooled plate, therefore, in order to improve the heat exchange efficiency of cooled plate, the boundary layer thickness of water passage surface must be reduced.The method reducing boundary layer thickness allows liquid in cooled plate runner, form turbulent flow, as shown in Figure 4.The upper cover plate of the present invention's design and the staggered designs of substrate flow-disturbing step, allow liquid that strong and unordered flowing occurs in runner, thus reduce the boundary layer thickness of fluid, also namely reduce the thermal-convection resistance of fluid, serve the effect of enhanced heat exchange.
Above-described embodiment is the present invention's preferably execution mode; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (9)
1. there is flow-disturbing to interlock a step straight channel cooled plate, it is characterized in that: comprise upper cover plate, substrate and lower cover; Described upper cover plate surface is milled with straight channel, is designed with flow-disturbing step in straight channel; Described substrate surface is milled with straight channel, straight channel is designed with flow-disturbing step, flow-disturbing step in described upper cover plate straight channel and the flow-disturbing step in substrate straight channel are staggered, and described upper cover plate and substrate, lower cover and substrate are welded together to form the cooled plate of water inlet and delivery port.
2. one according to claim 1 has flow-disturbing and to interlock step straight channel cooled plate, it is characterized in that: described substrate design has through hole, described upper cover plate is designed with welding reinforcement, and welding reinforcement reaches base plate bottom through through hole and substrate welds together.
3. one according to claim 1 has flow-disturbing and to interlock step straight channel cooled plate, and it is characterized in that: described substrate design is fluted, described upper cover plate is designed with rib, and when substrate and upper cover plate assemble, rib embeds groove.
4. one according to claim 1 has flow-disturbing and to interlock step straight channel cooled plate, and it is characterized in that: described substrate front side is designed with into water major trunk roads, water inlet major trunk roads connect water inlet.
5. one according to claim 1 has flow-disturbing and to interlock step straight channel cooled plate, and it is characterized in that: described substrate back side is designed with water outlet major trunk roads, water outlet major trunk roads connect delivery port.
6. one according to claim 1 has flow-disturbing and to interlock step straight channel cooled plate, it is characterized in that: described upper cover plate flow-disturbing shoulder height and substrate flow-disturbing shoulder height, close to the thermal-boundary-leyer thickness of fluid, are 0.2 ~ 0.4mm; And upper cover plate flow-disturbing step and substrate flow-disturbing step staggered designs.
7. one according to claim 1 has flow-disturbing and to interlock step straight channel cooled plate, it is characterized in that: described flow-disturbing step shape is cuboid or cylinder.
8. one according to claim 1 has flow-disturbing and to interlock step straight channel cooled plate, it is characterized in that: described upper cover plate and substrate and lower cover and substrate are welded together by friction stir welding.
9. one according to claim 1 has flow-disturbing and to interlock step straight channel cooled plate, it is characterized in that: the material of described cooled plate is aluminium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410621436.2A CN104334003A (en) | 2014-11-06 | 2014-11-06 | Straight runner water cooling plate with turbulence staggering step |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410621436.2A CN104334003A (en) | 2014-11-06 | 2014-11-06 | Straight runner water cooling plate with turbulence staggering step |
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| Publication Number | Publication Date |
|---|---|
| CN104334003A true CN104334003A (en) | 2015-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410621436.2A Pending CN104334003A (en) | 2014-11-06 | 2014-11-06 | Straight runner water cooling plate with turbulence staggering step |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114667808A (en) * | 2019-09-06 | 2022-06-24 | 法雷奥西门子新能源汽车法国股份公司 | Plastic cover for closing fluid-based cooling circuits of electrical equipment |
Citations (5)
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| US20100172091A1 (en) * | 2008-11-28 | 2010-07-08 | Fuji Electric Systems Co., Ltd. | Cooling apparatus for semiconductor chips |
| CN102138057A (en) * | 2008-07-24 | 2011-07-27 | 丰田自动车株式会社 | Heat exchanger and method of manufacturing same |
| CN102566722A (en) * | 2012-01-05 | 2012-07-11 | 南京佳力图空调机电有限公司 | CPU (Central processing unit) water-cooled radiator and application method thereof |
| CN202354023U (en) * | 2012-03-02 | 2012-07-25 | 东莞爱美达电子有限公司 | A water-cooled plate with staggered fins |
| CN204168700U (en) * | 2014-11-06 | 2015-02-18 | 广州高澜节能技术股份有限公司 | One has flow-disturbing and to interlock step straight channel cooled plate |
-
2014
- 2014-11-06 CN CN201410621436.2A patent/CN104334003A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102138057A (en) * | 2008-07-24 | 2011-07-27 | 丰田自动车株式会社 | Heat exchanger and method of manufacturing same |
| US20100172091A1 (en) * | 2008-11-28 | 2010-07-08 | Fuji Electric Systems Co., Ltd. | Cooling apparatus for semiconductor chips |
| CN102566722A (en) * | 2012-01-05 | 2012-07-11 | 南京佳力图空调机电有限公司 | CPU (Central processing unit) water-cooled radiator and application method thereof |
| CN202354023U (en) * | 2012-03-02 | 2012-07-25 | 东莞爱美达电子有限公司 | A water-cooled plate with staggered fins |
| CN204168700U (en) * | 2014-11-06 | 2015-02-18 | 广州高澜节能技术股份有限公司 | One has flow-disturbing and to interlock step straight channel cooled plate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114667808A (en) * | 2019-09-06 | 2022-06-24 | 法雷奥西门子新能源汽车法国股份公司 | Plastic cover for closing fluid-based cooling circuits of electrical equipment |
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Application publication date: 20150204 |