CN106409792A - Water cooling plate radiator and the preparation technology for the same - Google Patents
Water cooling plate radiator and the preparation technology for the same Download PDFInfo
- Publication number
- CN106409792A CN106409792A CN201610903228.0A CN201610903228A CN106409792A CN 106409792 A CN106409792 A CN 106409792A CN 201610903228 A CN201610903228 A CN 201610903228A CN 106409792 A CN106409792 A CN 106409792A
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- Prior art keywords
- cooled plate
- plate
- cooled
- plate radiator
- radiator
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- 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
- H01L23/473—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention provides a water cooling plate radiator and the preparation technology for the same. The water cooling plate radiator is provided with, in the order from the top to the bottom, a covering plate, a brazing layer and a water cooling plate radiator substrate in sequence. The opposite faces of the covering plate and the water cooling plate radiator substrate are provided with a half water running channel respectively. The brazing layer is capable of having the covering plate and the water cooling plate radiator substrate welded. During the welding process, it is possible to control the temperature accurately and to heat evenly. In usual conditions, no brazing flux is utilized; the deformation of a workpiece is small; the size precision of the workpiece can be ensured easily; as the welding process is done in a vacuumed environment, the various welding defects of aluminum alloy melting and welding can be avoided. In addition, with the technology, the joints of the upper aluminum plate and the lower aluminum plate can be formed at one attempt.
Description
Technical field
The invention belongs to aluminium sheet manufacture field, more particularly, to a kind of cooled plate radiator and its preparation technology.
Background technology
In recent years, IGBT (insulated gate bipolar transistor) element generally applies on high-power rectifying device, this element
Substantial amounts of heat can be produced, the highly integrated property of equipment requires radiating water cooling board wall thin and heat radiation density is big, and this is just to water during use
Cold drawing structure and material and propose higher requirement.
Compared to ferrous materials, aluminium alloy has the advantages that specific strength is big, light weight, heat conductivity are good and corrosion-resistant, wide
General it is applied to automobile and ship domain.Soldering is different from melting, is a kind of thermally coupled for material connection or material coating
Method, realizes welding purpose by the fusing of solder and the solder of the fusing diffusion between two soldered contact surfaces.
The widely used material of heat sink that soldering manufactures is adopted to be aluminium alloy 3A21 at present, this material has ruckbildung in postwelding,
And belong to not heat-treatable strengthened aluminum alloy.It is moderate strength aluminium alloy that 6063 aluminium alloys belong to 6, and welding performance is good, Ke Rechu
Reason strengthening, the vacuum brazing of therefore 6063 aluminium alloys has very big application empty in lightweight, the heat dissipation cold plate structure of high withstand voltage
Between.
At present, mostly the radiator manufacture of high-power rectifying device is the process adding normal melting weldering with reference to drilling deep hole,
This allows for the design of radiator inner flow passage and is limited by the structure of depth drill, leads to cooled plate radiator runner design single, dissipates
Thermal effect is had a greatly reduced quality, and the defects such as pore and crackle easily in the melting welding process of aluminum alloy materials, need into
Row is repaired and to be ensured the welding quality of cooled plate radiator, and manufacturing procedure is loaded down with trivial details.
Content of the invention
In view of this, in order to overcome the deficiencies in the prior art, the present invention provides a kind of cooled plate radiator and its system
Standby technique, has more preferable heat conduction efficiency, can significantly reduce scattered on the premise of meeting same radiating index
The volume of hot device, also reduces the weight of radiator simultaneously.
In order to solve above-mentioned technical problem, the present invention employs the following technical solutions：
A kind of cooled plate radiator, this cooled plate radiator is followed successively by cover plate, solder layer and cooled plate radiating from top to bottom
The opposite one side of device substrate, described cover plate and described cooled plate radiator base plate is respectively provided with half water flow passage, described solder layer energy
Enough weld described cover plate and described cooled plate radiator base plate.
Further, two described half water flow passage are combined into cooled plate water flow passage.
Further, one end of described cooled plate water flow passage is provided with outlet, and the other end of described cooled plate water flow passage is provided with
Water inlet.
The present invention also provides a kind of technique preparing cooled plate radiator, comprises the following steps：
1) preparation of cooled plate radiator base plate and cover plate：3A21 aluminium alloy plate or 6063 aluminum of 3 millimeters thick selected by cover plate
Alloy sheets, carry out blanking using cut；Cooled plate radiator base plate selects 6063 aluminium alloy plates, is carried out using high pressure waterjet
Blanking, then processes cooled plate water flow passage, wherein, the every side of the long cross direction of blanking of cooled plate radiator base plate and cover plate with milling machine
Reserved 2 millimeters of allowance；
2) cleaning of cooled plate radiator base plate and cover plate：First the cooled plate completing milling machine processing cooled plate water flow passage is dissipated
Hot device substrate is placed in sodium hydroxide solution to soak with the cover plate completing milling machine processing cooled plate water flow passage and is rushed with warm water after 3min
Wash clean, is rinsed well with clear water after being then placed in soaking 2 minutes in salpeter solution, then dries to be welded；
3) assembling before welding：First 4041 aluminium alloy paillon foil milling material are cut into the cooled plate radiator base plate overall dimensions after cutting
Identical shape, is then laid on cooled plate radiator base plate, finally covers the cover plate after drying and to carry out integral installation clamping
Fixed, load vacuum milling brazier；
4) vacuum milling weldering processing：Vacuum stove evacuation first, in brazing process vacuum should ensure that no more than 2.0 ×
10-3 handkerchief, followed by rises gentle insulation；
5) soldering post processing：Cooled plate radiator semi-finished product Milling Machining after soldering is processed to surface, by step
1) in, the allowance on 2 millimeters of each side mills；
6) vacuum brazing air tight test, carries out air tight test with air tight test frock to cooled plate radiator, inspection
Test pressure and be 1 MPa.
Further, the concentration of described sodium hydroxide solution is 8%, and the temperature of described sodium hydroxide solution is 60 degree.
Further, the concentration of described salpeter solution is 15%, and the temperature of described salpeter solution is room temperature.
Further, described step 4) in milling weldering temperature higher 10 DEG C than solder melting temperature, milling weldering temperature retention time according to work
Depending on the size of part and solder and mother metal Degree of interaction.
Beneficial effects of the present invention are：In brazing process, energy precise control of temperature, homogeneous heating, typically do not use pricker
Agent, the deformation of workpiece is little, is easily guaranteed that the dimensional accuracy of workpiece, carry out in the welding surroundings of vacuum, it is to avoid aluminium alloy melts
Change the various weld defects of weldering, and this inventive method can once make each joint one-shot forming of lower aluminum sheet.In addition, the present invention
From vacuum brazing, cooled plate radiator is combined by cooled plate radiator base plate and cover plate welding, in cooled plate radiator
The internal water flow passage structure of cooled plate radiator is designed on substrate, completes to process by the way of Milling Machining, evaded depth drill
When internal water runner structure design limitation, can greatly increase the internal water runner space body of cooled plate radiator
Long-pending, improve integral heat sink effect, and decrease the deadweight of cooled plate radiator.Additionally, the furnace inner space according to vacuum brazing furnace
With the overall dimensions of cooled plate radiator, a vacuum brazing working ability can be calculated in advance, you can multiple disposably to complete
The vacuum brazing processing of cooled plate radiator, effectively increases production efficiency.
Brief description
Fig. 1 is the structural representation of the cooled plate water flow passage of a kind of present invention cooled plate radiator and its preparation technology；
Fig. 2 is a kind of cross-sectional view of present invention cooled plate radiator；
Fig. 3 is a kind of process chart preparing cooled plate radiator of the present invention；
Wherein, 1, cooled plate radiator base plate；2nd, cooled plate water flow passage；3rd, water inlet, 4, outlet；5th, cover plate；6th, pricker
The bed of material；7th, Stainless Steel dividing plate.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with the accompanying drawings and embodiment, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, not
For limiting the present invention.
A kind of cooled plate radiator, this cooled plate radiator is followed successively by cover plate 5, solder layer 6 and cooled plate from top to bottom and dissipates
The opposite one side of hot device substrate 1, cover plate 5 and cooled plate radiator base plate 1 is respectively provided with half water flow passage, and solder layer 6 can weld
Cover plate 5 and cooled plate radiator base plate 1, that is, cover plate 5 one side adjacent with cooled plate radiator base plate 1 be provided with the current of half
Road, cooled plate radiator base plate 1 one side adjacent with cover plate 5 is provided with the water flow passage of half, the water flow passage of the half on cover plate 5 face
With the corresponding split of water flow passage of the half on cooled plate radiator base plate face, form cooled plate water flow passage 2.Cooled plate water flow passage 2
One end be provided with outlet 4, the other end of cooled plate water flow passage 2 is provided with water inlet 3, wherein outlet 4 and water inlet 4 same
Side.
A kind of technique preparing cooled plate radiator, comprises the following steps：
1) preparation of cooled plate radiator base plate and cover plate：3A21 aluminium alloy plate or 6063 aluminum of 3 millimeters thick selected by cover plate
Alloy sheets, carry out blanking using cut；Cooled plate radiator base plate selects 6063 aluminium alloy plates, is carried out using high pressure waterjet
Blanking, then processes cooled plate water flow passage, wherein, the every side of the long cross direction of blanking of cooled plate radiator base plate and cover plate with milling machine
Reserved 2 millimeters of allowance；
2) cleaning of cooled plate radiator base plate and cover plate：First the cooled plate completing milling machine processing cooled plate water flow passage is dissipated
Hot device substrate is placed in sodium hydroxide solution to soak with the cover plate completing milling machine processing cooled plate water flow passage and is rushed with warm water after 3min
Wash clean, is rinsed well with clear water after being then placed in soaking 2 minutes in salpeter solution, then dries to be welded；Wherein, sodium hydroxide
The concentration of solution is 8%, and temperature is 60 degree；The concentration of salpeter solution is 15%, and temperature is room temperature.
3) assembling before welding：First 4041 aluminium alloy paillon foil milling material are cut into the cooled plate radiator base plate overall dimensions after cutting
Identical shape, is then laid on cooled plate radiator base plate, finally covers the cover plate after drying and to carry out integral installation clamping
Fixed, load vacuum milling brazier；
4) vacuum milling weldering processing：Vacuum stove evacuation first, in brazing process vacuum should ensure that no more than 2.0 ×
10-3 handkerchief, followed by rises gentle insulation, and milling weldering temperature is higher 10 DEG C than solder melting temperature, and the temperature retention time of milling weldering is according to workpiece
Depending on size and solder and mother metal Degree of interaction.Workpiece size calculates according to soldering finished size, and that is, 354 millimeters × 194
Millimeter × 19 millimeters, solder is 4041 aluminium alloy paillon foils, is first heated to 570 degree, is then incubated 3 hours, then heats straight 630 degree,
Insulation 40 minutes, subsequent furnace cooling.
5) soldering post processing：Cooled plate radiator semi-finished product Milling Machining after soldering is processed to surface, by step
1) in, the allowance on 2 millimeters of each side mills；
6) vacuum brazing air tight test, carries out air tight test with air tight test frock to cooled plate radiator, inspection
Test pressure and be 1 MPa.
Ultimate principle is：4041 aluminium alloy paillon foils are layered between cooled plate radiator base plate and cover plate, after assembling is fixing
Place heating in a vacuum furnace, insulation, obtain excellent welding point.The vacuum brazing technique main points of aluminium sheet are the profits using solder
Wet effect and capillarity, promote mother metal to interact with solder, and one kind is that solid-state mother metal dissolves to liquid solder, and another kind is
Liquid solder spreads to solid-state mother metal, thus obtaining excellent welding point.
Main points of the present invention are：According to the current route within the principle design heat spreader module of heat exchange, cooling water flows through
Cross after shunting, backflow etc. process, reach that each branch road uniform fluid flow of inside modules, thermograde be uniform, heat exchange is sufficiently imitated
Really.Using vacuum brazing mode design current route compared with for depth drill formula heat spreader structures, there is more preferable heat conduction efficiency.
Fill aluminium sheet using 4104 aluminium alloy paillon foils as solder, Optimizing Process Parameters (temperature, time etc.), in the environment of fine vacuum
Welded to obtain the welding point of high-quality, met sealing and the barotolerance of design requirement.
The present invention relates on high-power rectifying device heat dissipation equipment use water-cooled aluminium sheet (aluminium alloy 6063) Welder
Process, is suitable in the harsher transporting equipment fairing of volume and weight requirement and other mobile device fairings
Middle utilization.
Embodiment described above only have expressed embodiments of the present invention, and its description is more concrete and detailed, but can not
Therefore it is interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art,
Without departing from the inventive concept of the premise, some deformation can also be made and improve, these broadly fall into the protection model of the present invention
Enclose.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (7)
1. a kind of cooled plate radiator it is characterised in that：This cooled plate radiator is followed successively by cover plate, solder layer and water from top to bottom
The opposite one side of cold plate radiator substrate, described cover plate and described cooled plate radiator base plate is respectively provided with half water flow passage, described
Solder layer can weld described cover plate and described cooled plate radiator base plate.
2. a kind of cooled plate radiator according to claim 1 it is characterised in that：Two described half water flow passage are combined into
Cooled plate water flow passage.
3. a kind of cooled plate radiator according to claim 2 it is characterised in that：One end of described cooled plate water flow passage sets
There is outlet, the other end of described cooled plate water flow passage is provided with water inlet.
4. a kind of technique of the cooled plate radiator prepared as any one of claims 1 to 3 is it is characterised in that include
Following steps：
1) preparation of cooled plate radiator base plate and cover plate：3A21 aluminium alloy plate or 6063 aluminium alloys of 3 millimeters thick selected by cover plate
Plate, carries out blanking using cut；Cooled plate radiator base plate selects 6063 aluminium alloy plates, under being carried out using high pressure waterjet
Material, then processes cooled plate water flow passage with milling machine, wherein, the every side of the long cross direction of blanking of cooled plate radiator base plate and cover plate is pre-
Stay 2 millimeters of allowance；
2) cleaning of cooled plate radiator base plate and cover plate：First the cooled plate radiator of milling machine processing cooled plate water flow passage will be completed
Substrate and the cover plate completing milling machine processing cooled plate water flow passage are placed in sodium hydroxide solution to soak and are done with warm water washing after 3min
Only, rinsed well with clear water after being then placed in soaking 2 minutes in salpeter solution, then dry to be welded；
3) assembling before welding：First 4041 aluminium alloy paillon foil milling material are cut into the cooled plate radiator base plate overall dimensions after cutting identical
Shape, be then laid on cooled plate radiator base plate, finally cover the cover plate after drying clamping fixed, the dress that carries out integral installation
Enter vacuum milling brazier；
4) vacuum milling weldering processing：It is vacuum stove evacuation first, in brazing process, vacuum should ensure that no more than 2.0 × 10-3Handkerchief,
Followed by rise gentle insulation；
5) soldering post processing：Cooled plate radiator semi-finished product Milling Machining after soldering is processed to surface, by step 1) in
The allowance on 2 millimeters of each side mills；
6) vacuum brazing air tight test, carries out air tight test, inspection pressure with air tight test frock to cooled plate radiator
Power is 1 MPa.
5. a kind of technique preparing cooled plate radiator according to claim 4 it is characterised in that：Described sodium hydroxide is molten
The concentration of liquid is 8%, and the temperature of described sodium hydroxide solution is 60 degree.
6. a kind of technique preparing cooled plate radiator according to claim 4 it is characterised in that：Described salpeter solution
Concentration is 15%, and the temperature of described salpeter solution is room temperature.
7. a kind of technique preparing cooled plate radiator according to claim 4 it is characterised in that：Described step 4) in milling
Weldering temperature is higher 10 DEG C than solder melting temperature, and the temperature retention time of milling weldering is according to the size of workpiece and solder and mother metal interaction journey
Depending on degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610903228.0A CN106409792A (en) | 2016-10-18 | 2016-10-18 | Water cooling plate radiator and the preparation technology for the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610903228.0A CN106409792A (en) | 2016-10-18 | 2016-10-18 | Water cooling plate radiator and the preparation technology for the same |
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| Publication Number | Publication Date |
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| CN106409792A true CN106409792A (en) | 2017-02-15 |
Family
ID=58012343
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610903228.0A Pending CN106409792A (en) | 2016-10-18 | 2016-10-18 | Water cooling plate radiator and the preparation technology for the same |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108356375A (en) * | 2018-02-12 | 2018-08-03 | 无锡格林沃科技有限公司 | It is brazed integral type tablet superconduction cooler and its production technology |
| CN108987006A (en) * | 2018-08-01 | 2018-12-11 | 株洲中车奇宏散热技术有限公司 | A kind of the ship resistor disc water-cooling method and insulated water-cooling resistor of seawater corrosion resistance |
| CN109798507A (en) * | 2019-01-18 | 2019-05-24 | 江苏久华环保科技股份有限公司 | A kind of high-efficiency evaporator applied to steel production |
| CN110190358A (en) * | 2019-06-12 | 2019-08-30 | 南宁八菱科技股份有限公司 | A kind of combination soldering water-cooled plate |
| CN110602920A (en) * | 2018-06-30 | 2019-12-20 | 中航光电科技股份有限公司 | Cold plate and method for producing a cold plate |
| CN112171210A (en) * | 2020-09-30 | 2021-01-05 | 东风马勒热系统有限公司 | Battery liquid cooling plate rapid sample piece structure and manufacturing method thereof |
| CN112222789A (en) * | 2020-08-23 | 2021-01-15 | 蚌埠市神舟机械有限公司 | Manufacturing process of marine radiator |
| CN112719821A (en) * | 2020-12-16 | 2021-04-30 | 北京有色金属与稀土应用研究所 | Ultrathin vacuum cavity vapor chamber composite material and seal forming method thereof |
| CN112743298A (en) * | 2020-12-29 | 2021-05-04 | 武汉善福重型机床有限公司 | Method for manufacturing cooling system heat shield module |
| CN113878320A (en) * | 2021-10-08 | 2022-01-04 | 佛山华智新材料有限公司 | Manufacturing method of radiator and radiator |
| CN114985859A (en) * | 2022-05-31 | 2022-09-02 | 江苏文轩热管理系统有限公司 | Production process of stamping type liquid cooling plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108356375A (en) * | 2018-02-12 | 2018-08-03 | 无锡格林沃科技有限公司 | It is brazed integral type tablet superconduction cooler and its production technology |
| CN108356375B (en) * | 2018-02-12 | 2024-01-30 | 无锡格林沃科技有限公司 | Brazing integrated flat superconducting cooler and production process thereof |
| CN110602920A (en) * | 2018-06-30 | 2019-12-20 | 中航光电科技股份有限公司 | Cold plate and method for producing a cold plate |
| CN110602920B (en) * | 2018-06-30 | 2020-10-30 | 中航光电科技股份有限公司 | Cold plate and method for producing a cold plate |
| CN108987006B (en) * | 2018-08-01 | 2021-07-30 | 株洲中车奇宏散热技术有限公司 | Seawater corrosion resistant ship resistor disc water cooling method and insulating water-cooled resistor |
| CN108987006A (en) * | 2018-08-01 | 2018-12-11 | 株洲中车奇宏散热技术有限公司 | A kind of the ship resistor disc water-cooling method and insulated water-cooling resistor of seawater corrosion resistance |
| CN109798507A (en) * | 2019-01-18 | 2019-05-24 | 江苏久华环保科技股份有限公司 | A kind of high-efficiency evaporator applied to steel production |
| CN110190358A (en) * | 2019-06-12 | 2019-08-30 | 南宁八菱科技股份有限公司 | A kind of combination soldering water-cooled plate |
| CN112222789A (en) * | 2020-08-23 | 2021-01-15 | 蚌埠市神舟机械有限公司 | Manufacturing process of marine radiator |
| CN112171210A (en) * | 2020-09-30 | 2021-01-05 | 东风马勒热系统有限公司 | Battery liquid cooling plate rapid sample piece structure and manufacturing method thereof |
| CN112719821A (en) * | 2020-12-16 | 2021-04-30 | 北京有色金属与稀土应用研究所 | Ultrathin vacuum cavity vapor chamber composite material and seal forming method thereof |
| CN112743298A (en) * | 2020-12-29 | 2021-05-04 | 武汉善福重型机床有限公司 | Method for manufacturing cooling system heat shield module |
| CN112743298B (en) * | 2020-12-29 | 2023-02-14 | 武汉善福重型机床有限公司 | Method for manufacturing cooling system heat shield module |
| CN113878320A (en) * | 2021-10-08 | 2022-01-04 | 佛山华智新材料有限公司 | Manufacturing method of radiator and radiator |
| CN114985859A (en) * | 2022-05-31 | 2022-09-02 | 江苏文轩热管理系统有限公司 | Production process of stamping type liquid cooling plate |
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Application publication date: 20170215 |