CN110355540A - A kind of corrosion-resistant cold plate forming method of containing heat pipe inside - Google Patents
A kind of corrosion-resistant cold plate forming method of containing heat pipe inside Download PDFInfo
- Publication number
- CN110355540A CN110355540A CN201910657745.8A CN201910657745A CN110355540A CN 110355540 A CN110355540 A CN 110355540A CN 201910657745 A CN201910657745 A CN 201910657745A CN 110355540 A CN110355540 A CN 110355540A
- Authority
- CN
- China
- Prior art keywords
- cold plate
- heat pipe
- corrosion
- forming method
- containing heat
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- 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.)
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Classifications
-
- 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
-
- 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
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/10—Heat sinks
Abstract
The present invention relates to a kind of corrosion-resistant cold plate forming methods of containing heat pipe inside, by slotting on cold plate, the heat pipe of nickel plating is welded in mounting groove by low temperature welding technology, and weld seam is filled and led up, after nickel processing is moved back in part, electric conductive oxidation is carried out to entire cold plate, such forming method realizes integration processing and corrosion-resistance treatment containing heat pipe cold plate, there is corrosion resistant work characteristics and preferable antigravity performance in the case where guarantee cold plate excellent heat-conductive characteristic, adapt to more harsh working environment.
Description
Technical field
The present invention relates to a kind of forming methods of cold plate.
Background technique
Cold plate directly takes on the heat exchange interaction between heat source and cold source, the superiority and inferiority of design in mainstream cooling system
The maximum temperature and temperature uniformity of direct decision systems radiating efficiency and device, the design of cold plate is the key that augmentation of heat transfer.
Liquid cooling, air cold plate have started to be widely used in cooling system, but liquid cooling, air cold plate are imitated to improve heat dissipation
Rate needs to design complicated, tiny air duct, runner.Therefore, inner fins thickness and spacing of fin are generally relatively small, and are
Facilitate the installation of electronic component, runner inner fins otherness is larger, comes moulding, difficulty of processing with conventional processing method
It is higher, the process-cycle is longer.
Heat pipe belongs to a kind of high-efficiency heat conduction material, thermal coefficient in one-dimensional direction can reach 2000W/mK with
On, heat more uniform distribution on a peacekeeping two-dimensional directional can be made.Heat pipe insertion is used in the cold plate of dissipation from electronic devices,
Heat is sufficiently evenly arranged on cold plate two-dimensional surface, and heat dissipation area is bigger, is more advantageous to fever temperature control in ideal range
Interior, suitable for high heat flux density heating device.And this cold plate does not include gas, liquid working substance, antigravity function admirable.
Several heat pipes are set in the cold plate for attaching array electronic equipment in ZL03132267.0 as heat exchange element, by cooling jacket and
Cold plate welds together, and heat is reached cold plate heat dissipation by heat pipe.Machining forms connection inside cold plate in ZL03277457.5
Evaporator section of the logical heat exchanging pipe as heat pipe cold plate, the condensation segment of heat pipe cold plate are extended to cold by an insertion cold plate other end
But the connecting pipeline of water jacket is formed, and cooling jacket is directly welded together to form entire heat pipe cold plate device with cold plate.Pass through text
Access is offered, although the heat pipe cold plate that above-mentioned patent refers to overcomes liquid cooling, big, the antigravity performance of air cold plate machining difficulty etc.
The problem of aspect, but do not improve in terms of cold plate corrosion resistance.The environmental factor as applied by cold plate is severe, Er Qiere
Pipe cold plate is generally all connected heat pipe and cold plate by welding, and weld seam is easier to corrode, and heat pipe is caused to connect with cold plate substrate
It touches bad or even falls off, such as common laptop heat-pipe radiator, the service life is about in 2~3 years.Therefore heat pipe cold plate
Corrosion-resistant forming method is significant.
Summary of the invention
The invention discloses a kind of corrosion-resistant cold plate forming methods of containing heat pipe inside: heat pipe peace will be first processed on substrate 1
Heat pipe is flattened heat pipe, bending and molding by tankage or close-fitting slot according to actual needs, and will be at cold plate and heat pipe Entire nickel coating
Reason, in order to subsequent welding；Heat pipe is welded in heat pipe mounting groove using low temperature reflux welding technique；Weld seam is filled and led up, and
Processing facing cut is put down, tin cream can be selected in packing material；Safeguard procedures are carried out to cold plate, and locally move back nickel processing, in order to subsequent
Preservative treatment；Electric conductive oxidation processing finally is carried out to cold plate.This method can realize the corrosion-resistance treatment of heat pipe-type cold plate, and enhance
Cold plate heat dissipation effect.
It include cold plate substrate 1, heat source 2 using main modular inside the cold plate of this method machine-shaping, structure feature is for example attached
Shown in Fig. 2.
This kind of cold plate utilizes the high-efficiency heat conduction performance of heat pipe, has good uniform temperature, can be applicable in the feelings of high heat flux density
Condition, since using the heat pipe for having the compound capillary heart, there is good antigravity performance.It is carried out at corrosion resistant using this method
After reason, it is not only effectively filled with the weld seam of heat pipe Yu cold plate substrate, but also enhances the anti-corrosion ability of cold plate entirety, makes the heat dissipation of cold plate
Effect is improved, and reaches cold plate service life 5 years or more, adapts to more harsh working environment.
Detailed description of the invention
Fig. 1 is a kind of corrosion-resistant cold plate moulding process flow process figure based on heat pipe.
Fig. 2 is main modular inside heat pipe cold plate.Wherein: 1- cold plate substrate, 2- heat pipe.
Specific embodiment
Process flow chart of the invention according to heat pipe installation dimension first on cold plate substrate as shown in Figure 1, require to process
Heat pipe mounting groove out, and Entire nickel coating；Then heat pipe is flattened according to cooling requirements, bending and molding, and Entire nickel coating；Using low
Heat pipe is welded in heat pipe mounting groove by warm solder reflow techniques；Weld seam is filled and led up with tin cream, and processing facing cut is put down；To cold plate into
Row safeguard procedures simultaneously carry out locally moving back nickel；Electric conductive oxidation processing finally is carried out to cold plate.
The embodiment of the present invention: as shown in Fig. 2, which is aluminum profile containing heat pipe inside cold plate, shape length ruler
It is very little to be divided into 252mm, 160mm, 20mm.It is welded by low temperature reflux, the cold plate substrate (aluminium) 1 of nickel plating and heat pipe (copper) 2 is formed one
The cold plate of body structure after filling and leading up weld seam with tin cream, locally moves back nickel processing, will finally integrate the processing of cold plate electric conductive oxidation.Hair
Thermal device is mounted in mounting groove, and heat efficiently conducts on heat pipe after cold plate substrate, keeps heat uniform at the cold plate back side
Distribution, is effectively reduced hot localised points, and the cold plate has stronger corrosion resistance and antigravity performance.
Claims (2)
1. a kind of corrosion-resistant cold plate forming method of containing heat pipe inside, it is characterised in that:
Step 1: cold plate includes cold plate substrate (1) and heat pipe (2), processes heat pipe mounting groove or close-fitting on cold plate substrate (1)
Slot, and Entire nickel coating is handled；
Step 2: according to actual needs flattening heat pipe (2), bending and molding, and Entire nickel coating is handled；
Step 3: heat pipe (2) is welded in heat pipe mounting groove using low-temperature welding method；
Step 4: weld seam is filled and led up, and processing facing cut is put down；
Step 5: carrying out safeguard procedures to cold plate welding position, and locally moves back nickel processing；
Step 6: electric conductive oxidation processing is carried out to cold plate.
2. the corrosion-resistant cold plate forming method of containing heat pipe inside according to claim 1, it is characterised in that: the low-temperature welding
Tin cream soldering method can be used in method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910657745.8A CN110355540A (en) | 2019-07-20 | 2019-07-20 | A kind of corrosion-resistant cold plate forming method of containing heat pipe inside |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910657745.8A CN110355540A (en) | 2019-07-20 | 2019-07-20 | A kind of corrosion-resistant cold plate forming method of containing heat pipe inside |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110355540A true CN110355540A (en) | 2019-10-22 |
Family
ID=68221398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910657745.8A Pending CN110355540A (en) | 2019-07-20 | 2019-07-20 | A kind of corrosion-resistant cold plate forming method of containing heat pipe inside |
Country Status (1)
| Country | Link |
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| CN (1) | CN110355540A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002037917A1 (en) * | 2000-11-02 | 2002-05-10 | Thermosys Co., Ltd | Parts cooling apparatus for electric/electronic equipments |
| JP2003218573A (en) * | 2002-12-18 | 2003-07-31 | Hitachi Ltd | Method for manufacturing electronic unit casing |
| CN200965871Y (en) * | 2006-11-03 | 2007-10-24 | 鑫瑍企业有限公司 | CPU heat dissipation device |
| CN101932221A (en) * | 2009-06-23 | 2010-12-29 | 富准精密工业(深圳)有限公司 | Radiating device and radiating method thereof |
| CN105865243A (en) * | 2016-05-14 | 2016-08-17 | 广东工业大学 | Novel flat plate thiele tube and preparation method thereof |
| CN109500559A (en) * | 2018-12-07 | 2019-03-22 | 中国船舶重工集团公司第七二四研究所 | A kind of integrated cold plate manufacturing process in the small microchannel based on flat tube |
| CN208675649U (en) * | 2018-04-28 | 2019-03-29 | 北京东远润兴科技有限公司 | Radiator structure, electronic equipment and processor using the radiator structure |
-
2019
- 2019-07-20 CN CN201910657745.8A patent/CN110355540A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002037917A1 (en) * | 2000-11-02 | 2002-05-10 | Thermosys Co., Ltd | Parts cooling apparatus for electric/electronic equipments |
| JP2003218573A (en) * | 2002-12-18 | 2003-07-31 | Hitachi Ltd | Method for manufacturing electronic unit casing |
| CN200965871Y (en) * | 2006-11-03 | 2007-10-24 | 鑫瑍企业有限公司 | CPU heat dissipation device |
| CN101932221A (en) * | 2009-06-23 | 2010-12-29 | 富准精密工业(深圳)有限公司 | Radiating device and radiating method thereof |
| CN105865243A (en) * | 2016-05-14 | 2016-08-17 | 广东工业大学 | Novel flat plate thiele tube and preparation method thereof |
| CN208675649U (en) * | 2018-04-28 | 2019-03-29 | 北京东远润兴科技有限公司 | Radiator structure, electronic equipment and processor using the radiator structure |
| CN109500559A (en) * | 2018-12-07 | 2019-03-22 | 中国船舶重工集团公司第七二四研究所 | A kind of integrated cold plate manufacturing process in the small microchannel based on flat tube |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191022 |
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| WD01 | Invention patent application deemed withdrawn after publication |