CN104768356B - A kind of water cooling hardened structure of application 3D printing technique - Google Patents

A kind of water cooling hardened structure of application 3D printing technique Download PDF

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Publication number
CN104768356B
CN104768356B CN201510205124.8A CN201510205124A CN104768356B CN 104768356 B CN104768356 B CN 104768356B CN 201510205124 A CN201510205124 A CN 201510205124A CN 104768356 B CN104768356 B CN 104768356B
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China
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main channel
water
trapezoidal main
printing technique
cold plate
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CN201510205124.8A
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CN104768356A (en
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胡祥涛
张祥祥
陈兴玉
程五四
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CETC 38 Research Institute
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CETC 38 Research Institute
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Abstract

A kind of water cooling hardened structure of application 3D printing technique, cold plate base inner passage includes some trapezoidal main channel and circular hole microchannel, water inlet connects the trapezoidal main channel of cold plate base influent side, delivery port connects the trapezoidal main channel of cold plate base water outlet side, in cold plate base in addition to the trapezoidal main channel of Inlet and outlet water side is set for independent one, remaining trapezoidal main channel is all arranged in pairs.Connected entrance is provided with base wide between the trapezoidal main channel being arranged in pairs, and the part between trapezoidal main channel in addition to connected entrance is then provided with gap, is connected by circular hole microchannel between trapezoidal main channel.The present invention has advantages below compared to existing technology:In the absence of the hidden danger of leak, using trapezoidal main channel water is more uniformly distributed circulated in multiple circular hole microchannels, by multilayer circular hole microchannel increasing heat radiation area, absorb heat more abundant, reduction water circulating resistance improves the radiating efficiency of cooled plate.

Description

A kind of water cooling hardened structure of application 3D printing technique
Technical field
The present invention relates to water cooling technology, more particularly to a kind of application 3D printing technique the hardened structure of water cooling.
Background technology
With the development of electronic technology, the size of electronic equipment is less and less, packing density more and more higher, overall dissipation work( Rate is increased dramatically, and causes the heat dissipation problem of electronic equipment hot-fluid high to become increasingly conspicuous.When electronic equipment does not have good thermal diffusivity During energy, performance and life-span to whole equipment can produce significant impact.High density electronic equipment is entered using cold drawing mostly at present Row radiating.
Cooled plate is a kind of common heat exchanger, the features such as with lightweight, small volume, big heat dissipation capacity, inside it The design of runner and radiating fin is the principal element for influenceing radiating effect.Cooled plate processing common at present is to use milling Radiating fin and then integrated welding fabrication are processed, exists that fin height is limited and fin clearance is not excessive (typically small In 3mm) the problems such as, radiating efficiency is not high, it is difficult to reaches cooling requirements, and needs large area to seal, there is the hidden danger of leak.
The content of the invention
The technical problems to be solved by the invention there are provided a kind of radiating efficiency it is high and in the absence of leakage hidden trouble should With the hardened structure of the water cooling of 3D printing technique.
The present invention is to solve above-mentioned technical problem by the following technical programs:A kind of new type water of application 3D printing technique Cold drawing structure, including cold plate base and symmetrical water inlet and delivery port, the water inlet and delivery port are located at cold respectively The left and right sides lower section of plate matrix, the cold plate base inner passage includes some trapezoidal main channel and circular hole microchannel, enters The mouth of a river connects the trapezoidal main channel of cold plate base influent side, and delivery port connects the trapezoidal main channel of cold plate base water outlet side, cold drawing In addition to the trapezoidal main channel of influent side and water outlet side is set for independent one, remaining trapezoidal main channel is all intrinsic silicon It is arranged in pairs.Be provided with connected entrance between the trapezoidal main channel being arranged in pairs at base wide, and between trapezoidal main channel except Part beyond connected entrance is then provided with gap, and the inner passage of the cold plate base is micro- logical circular hole in addition to trapezoidal main channel Road, is connected between trapezoidal main channel by the circular hole microchannel.
As the technical scheme of optimization, it is be arranged in parallel between the trapezoidal main channel, and the direction that trapezoidal main channel is set Direction with water inlet and water outlet is consistent.
As the technical scheme of optimization, splitter is provided with the connected entrance between the trapezoidal main channel being arranged in pairs.
Used as the technical scheme of optimization, the splitter includes at least a piece of.
As the technical scheme of optimization, if the splitter includes dry plate, if dry plate splitter is in side vertically with current To be arrangeding in parallel.
Used as the technical scheme of optimization, the bottom both sides of splitter are in the circular arc for stretching out.
Used as the technical scheme of optimization, the circular hole microchannel is at least one of which.
Used as the technical scheme of optimization, the upper bottom of the trapezoidal main channel is respectively provided with into fillet.
Used as the technical scheme of optimization, the cooled plate structure is integrally formed using 3D printing technique.
Used as a specific technical scheme, the trapezoidal main channel upper bottom edge is 1.5mm, and bottom is 5.5mm, a height of 61.5mm, adjacent water channel spacing 1.5mm, upper bottom edge radius of corner are 0.75mm, and bottom radius of corner is 2.75mm;It is described many Each through-hole diameter of layer circular hole microchannel is 1mm, along cold plate base thickness direction pitch of holes 1.6mm, along short transverse pitch of holes 1.5mm;The splitter thickness is 0.5mm, and the radius of corner of circular arc is 1mm.
The present invention has advantages below compared to existing technology:It is new by what is used 3D printing technique to be integrally formed and produce Cooled plate structure, in the absence of the hidden danger of leak, using trapezoidal main channel water is more uniformly distributed in multiple circular hole microchannels Circulation, by multilayer circular hole microchannel increasing heat radiation area, absorbs heat more abundant, reduces water circulating resistance, and splitter rises simultaneously To the effect of increase heat exchange area and enhancing flow-disturbing, and reduce the sectional area that water can flow through, play a part of to increase flow velocity, Be conducive to improving the coefficient of heat transfer of water and wall, so as to improve the radiating efficiency of cooled plate.
Brief description of the drawings
Fig. 1 is cooled plate structural front view of the present invention;
Fig. 2 is cooled plate structure upward view of the present invention;
Fig. 3 is A-A sectional views in Fig. 1;
Fig. 4 is B-B sectional views in Fig. 2;
Fig. 5 is the reverse sectional views of B-B in Fig. 2;
Fig. 6 is the three-dimensional cutaway view in the direction of corresponding diagram 4;
Fig. 7 is the three-dimensional cutaway view in the direction of corresponding diagram 5;
Fig. 8 is C-C sectional views in Fig. 1;
Fig. 9 is I portions enlarged diagram in Fig. 8;
Figure 10 is the setting schematic diagram of splitter.
Specific embodiment
Embodiments of the invention are elaborated below, the present embodiment is carried out under premised on technical solution of the present invention Implement, give detailed implementation method and specific operating process, but protection scope of the present invention is not limited to following implementations Example.
As shown in Figures 1 to 7, a kind of hardened structure of water cooling of application 3D printing technique of the invention, including cold plate base 1 With symmetrical water inlet 2 and delivery port 3.
The inner passage of the cold plate base 1 includes some trapezoidal main channel 12, circular hole microchannels 14.
The water inlet 2 and delivery port 3 are respectively positioned at the left and right sides lower section of cold plate base 1, the connection cold plate base of water inlet 2 The trapezoidal main channel 12 of 1 influent side, delivery port 3 connects the trapezoidal main channel 12 of the water outlet side of cold plate base 1.
Inside cold plate base 1 in addition to the trapezoidal main channel 12 of influent side and water outlet side is set for independent one, remaining Trapezoidal main channel 12 is all arranged in pairs.Connected entrance 122 is provided with base wide between the trapezoidal main channel 12 being arranged in pairs, And the part between trapezoidal main channel 12 in addition to connected entrance 122 is then provided with gap 124, the setting of connected entrance 122 is to make water Next trapezoidal main channel 12 can be flowed into from a trapezoidal main channel 12, gap 122 is disposed to increasing heat radiation area. It is be arranged in parallel between trapezoidal main channel 12, and the direction that trapezoidal main channel 12 is set is consistent with the direction of water inlet and water outlet.
The inner passage of the cold plate base 1 is circular hole microchannel 14, trapezoidal main channel in addition to trapezoidal main channel 12 Connected by the circular hole microchannel 14 between 12, the cold water entered by water inlet 2 enters the trapezoidal of influent side due to pressure Main channel 12, then flows into the trapezoidal main channel 12 of next adjacent pairs of setting by circular hole microchannel 14.It is arranged in pairs Trapezoidal main channel 12 between water connected by connected entrance 122, according to this flow direction, final water out, becomes from delivery port 3 Hot water, so as to play a part of to radiate to parts.
Because the runner of whole water is long, impulse force is smaller in the backward for current, causes current to slow down, and radiating effect is deteriorated, Based on this consideration, the applicant devises a technical scheme for optimization, between the trapezoidal main channel 12 being arranged in pairs Splitter 126 is provided with connected entrance 122, splitter 126 is set along the direction of current.Please refer to Fig. 8 to Figure 10 institute Show, the splitter 126 is provided with 2 splitters, 126,2 splitters 126 vertical including at least a piece of in the present embodiment Direction with current be arranged in parallel, and the bottom both sides of splitter 126 are in the arc for stretching out.The setting of splitter 126 rises To increasing radiating surface and strengthening the effect of flow-disturbing, the sectional area that can be run water through reduces, and plays a part of to increase flow velocity, raising The radiating efficiency of cooled plate.
The size of trapezoidal main channel is set according to the size of cooled plate, and the circular hole microchannel 14 is at least one of which, at most The number of plies determined by the thickness of cooled plate, four layers of circular hole microchannel 14 are provided with the present embodiment.Multilayer circular hole microchannel 14 can Effective increasing heat radiation area simultaneously reduces water circulating resistance.
In order to enable water to smoothly flow, the upper bottom of the trapezoidal main channel 12 is respectively provided with into fillet.
The cooled plate structure is integrally formed using 3D printing technique.
Used as a specific example, the trapezoidal main channel upper bottom edge is 1.5mm, and bottom is 5.5mm, a height of 61.5mm, adjacent water channel spacing 1.5mm, upper bottom edge radius of corner are 0.75mm, and bottom radius of corner is 2.75mm.It is described many Each through-hole diameter of layer circular hole microchannel is 1mm, along cold plate base thickness direction pitch of holes 1.6mm, along short transverse pitch of holes 1.5mm.The splitter thickness is 0.5mm, and radius of corner is 1mm.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.

Claims (10)

1. the hardened structure of water cooling of a kind of application 3D printing technique, including cold plate base and symmetrical water inlet and water outlet Mouthful, the water inlet and delivery port are respectively positioned at the left and right sides lower section of cold plate base, it is characterised in that:Inside the cold plate base Passage includes some trapezoidal main channel and circular hole microchannel, and water inlet connects the trapezoidal main channel of cold plate base influent side, Delivery port connects the trapezoidal main channel of cold plate base water outlet side, except influent side and the trapezoidal main water of water outlet side inside cold plate base Road is independent one and sets outer, and remaining trapezoidal main channel is all arranged in pairs, in width between the trapezoidal main channel being arranged in pairs Connected entrance is provided with base, and the part between the trapezoidal main channel being arranged in pairs in addition to connected entrance is then provided with gap, The inner passage of the cold plate base is circular hole microchannel in addition to trapezoidal main channel, and the circle is passed through between trapezoidal main channel Hole microchannel connects, and the cold water entered by water inlet enters the trapezoidal main channel of influent side due to pressure, then by circular hole Microchannel flows into the trapezoidal main channel of next adjacent pairs of setting, and the water between the trapezoidal main channel being arranged in pairs is by connecting Port is connected, and according to this flow direction, final water out, becomes hot water from delivery port.
2. the hardened structure of water cooling of 3D printing technique is applied as claimed in claim 1, it is characterised in that:All trapezoidal main water It is be arranged in parallel between road, and the direction that trapezoidal main channel is set is consistent with the direction of water inlet and water outlet.
3. the hardened structure of water cooling of 3D printing technique is applied as claimed in claim 1, it is characterised in that:What is be arranged in pairs Splitter is provided with connected entrance between trapezoidal main channel.
4. the hardened structure of water cooling of 3D printing technique is applied as claimed in claim 3, it is characterised in that:The splitter bag Include at least a piece of.
5. the hardened structure of water cooling of 3D printing technique is applied as claimed in claim 3, it is characterised in that:The splitter bag If including dry plate, every splitter is set along the direction of current, if dry plate splitter be arranged in parallel in the direction perpendicular to current.
6. the hardened structure of water cooling of the application 3D printing technique as described in any one of claim 3 to 5, it is characterised in that:Point The bottom both sides of flow are in the circular arc for stretching out.
7. the hardened structure of water cooling of 3D printing technique is applied as claimed in claim 1, it is characterised in that:The circular hole is micro- logical Road is at least one of which.
8. the hardened structure of water cooling of 3D printing technique is applied as claimed in claim 3, it is characterised in that:The trapezoidal main water The upper bottom in road is respectively provided with into fillet.
9. the hardened structure of water cooling of 3D printing technique is applied as claimed in claim 1, it is characterised in that:The water-cooled is hardened Structure is integrally formed using 3D printing technique.
10. the hardened structure of water cooling of 3D printing technique is applied as claimed in claim 8, it is characterised in that:The trapezoidal master Water channel upper bottom edge is 1.5mm, and bottom is 5.5mm, a height of 61.5mm, adjacent water channel spacing 1.5mm, and upper bottom edge radius of corner is 0.75mm, bottom radius of corner is 2.75mm;Described each through-hole diameter of circular hole microchannel is 1mm, along cold plate base thickness Direction pitch of holes 1.6mm, along short transverse pitch of holes 1.5mm;The splitter thickness is 0.5mm, the radius of corner of circular arc It is 1mm.
CN201510205124.8A 2015-04-27 2015-04-27 A kind of water cooling hardened structure of application 3D printing technique Active CN104768356B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU190821U1 (en) * 2018-10-25 2019-07-15 Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский авиационный институт (национальный исследовательский университет)" The case of the receiving-transmitting module of an active phased antenna array manufactured by layer-by-layer laser synthesis

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11235528B2 (en) 2017-09-02 2022-02-01 R3 Printing, Inc. Carriageless print head assembly for extrusion-based additive construction

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Publication number Priority date Publication date Assignee Title
CN101778554A (en) * 2010-01-04 2010-07-14 北京交通大学 Radiating system
CN201655785U (en) * 2010-04-15 2010-11-24 华中科技大学 Micro-channel heat sink for electronic packaging device
CN102548367A (en) * 2012-02-07 2012-07-04 山东大学 Small passageway liquid cooling base board of power electronic integration module with double-trapezoid cross section fins
CN204598551U (en) * 2015-04-27 2015-08-26 中国电子科技集团公司第三十八研究所 A kind of water cooling plate structure applying 3D printing technique

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Publication number Priority date Publication date Assignee Title
US7353859B2 (en) * 2004-11-24 2008-04-08 General Electric Company Heat sink with microchannel cooling for power devices

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101778554A (en) * 2010-01-04 2010-07-14 北京交通大学 Radiating system
CN201655785U (en) * 2010-04-15 2010-11-24 华中科技大学 Micro-channel heat sink for electronic packaging device
CN102548367A (en) * 2012-02-07 2012-07-04 山东大学 Small passageway liquid cooling base board of power electronic integration module with double-trapezoid cross section fins
CN204598551U (en) * 2015-04-27 2015-08-26 中国电子科技集团公司第三十八研究所 A kind of water cooling plate structure applying 3D printing technique

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU190821U1 (en) * 2018-10-25 2019-07-15 Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский авиационный институт (национальный исследовательский университет)" The case of the receiving-transmitting module of an active phased antenna array manufactured by layer-by-layer laser synthesis

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