CN105689963A - Heat-transfer welding-free connection method for heat pipe - Google Patents
Heat-transfer welding-free connection method for heat pipe Download PDFInfo
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- CN105689963A CN105689963A CN201610254940.2A CN201610254940A CN105689963A CN 105689963 A CN105689963 A CN 105689963A CN 201610254940 A CN201610254940 A CN 201610254940A CN 105689963 A CN105689963 A CN 105689963A
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- heat
- heat pipe
- heating
- pipe
- connection method
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- 238000000034 method Methods 0.000 title claims abstract description 65
- 238000010438 heat treatment Methods 0.000 claims abstract description 49
- 230000017525 heat dissipation Effects 0.000 claims abstract description 26
- 230000008020 evaporation Effects 0.000 claims abstract description 24
- 238000001704 evaporation Methods 0.000 claims abstract description 24
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 238000009833 condensation Methods 0.000 claims description 27
- 230000005494 condensation Effects 0.000 claims description 27
- 238000003466 welding Methods 0.000 claims description 11
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 238000005485 electric heating Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000035126 Facies Diseases 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011469 building brick Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
-
- 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
- B23P2700/09—Heat pipes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a heat transfer solderless connection method for a heat pipe, which comprises the following steps of solderless connection treatment of an evaporation end, wherein the solderless connection method for the evaporation end comprises the following steps: (1) preparing a heat conduction block and at least one heat pipe, and arranging at least one open slot corresponding to the corresponding heat pipe (1) on the pressurized surface of the heat conduction block; (2) penetrating the end part of the evaporation end of the heat pipe into an open slot, wherein the heat pipe is provided with a protruding part protruding out of the open slot after penetrating; (3) pressing a pressing block to enable the pressing block to act on the pressed surface of the heat conducting block, and enabling the protruding part to be pressed into the open slot and flattened; (4) the heat pipe is heated to expand the end of the evaporation end of the heat pipe, so that the end of the heat pipe is in close contact with the wall surface of the open slot, and the surface of the flattened part of the heat pipe and the pressurized surface of the heat conduction block form at least one contact surface which is in contact with the heating component. The heat pipe and the heat transfer element can be in close contact by the method, so that the heat dissipation effect of the heat pipe and the heat transfer element is improved.
Description
Technical field
The present invention relates to a kind of adopting heat pipes for heat transfer weldless connection method, it is adaptable on the heat transfer unit (HTU) of single heat pipe, double; two heat pipe and many heat pipes。
Background technology
At present, owing to heat pipe has a high thermoconductivity, and lightweight, simple in construction, cheap, need not can transmit the advantages such as amount of heat by electric power, be widely applied in the various occasions needing heat radiation。Such as to electronic heating component (integrated device that the caloric value such as CPU is big) quickly diversion heat radiation, effectively reduce the heat that electronic heating component heating causes and gather, it is ensured that the normal operation of electronic building brick。
But only heat pipe is not enough, be passed by the heat on heat generating component, in addition it is also necessary to radiator, heat-conducting block composition heat-pipe radiator, namely heat-pipe radiator includes radiator, heat pipe and heat-conducting block。Wherein, radiator is formed by multiple radiating fin phase stacked combination, respectively this radiating fin is provided with perforation, one end of heat pipe is arranged in the perforation of each radiating fin, the other end of heat pipe is arranged on heat-conducting block and is provided with in the conduit that (during single heat pipe) or multiple (number of corresponding heat pipe) is parallel to each other, one end that heat pipe is connected with heat-conducting block is called evaporation ends, and the one end being connected with radiator is called condensation end。
Current scheme is by heat-conducting block and electronic heating component close contact, heat-conducting block and heat pipe close contact, it is delivered on the radiating fin of condensation end by the heat of evaporation ends by heat pipe to distribute, can be passed more quickly and loss generally for the heat making electronic heating component produce, radiator fan generally can be coordinated quickly to be blown off by heat。
Heat-conducting block and heat pipe need intimate contact heat transfer method, one of scheme is to adopt welding method to carry out close contact, in heat-conducting block link slot, smear low melting point metal slurry during welding, one end of heat pipe is placed in the link slot of this heat-conducting block, be re-fed into reflow oven heating hot melt；With the connection of each radiating fin of radiator, be sometimes also adopted by changing the hole on fin into method that slot welding connects。The method is owing to adopting copper billet as heat-conducting block, the intimate surface contact of one side and the electronic heating component such as integrated package, another side is contacted with heat pipe by scolding tin in groove, not only needs to smear metallic slurry, the operation of heating and cost, also environment is affected。First scheme is by extruding and roll in the open slot embedded on heat-conducting block by heat pipe, and the heat pipe in open slot is in same plane with heat-conducting block plane after flattening, intimate surface contact by electronic heating components such as direct for this plane and integrated packages, now, heat pipe plays main heat transfer effect, but heat pipe contact area is little, it is still necessary to heat is delivered heat to heat pipe from conduit contact position by the large contact surface by heat-conducting block；And the one side that scheme one is heat-conducting block contacts with electronic heating component, one side contacts with heat pipe, needing heat-conducting block to conduct heat, add heat transfer resistance between electronic heating component and heat pipe, therefore, scheme two heat-transfer effect is better。But scheme two adopts, and open slot is more slightly smaller than maximum diameter to be extruded heat pipe and rolls the method into groove, not only make heat pipe rolling surface uneven, cause and contact bad with electronic heating component surface, simultaneously in the close contact on the internal tube surface of conduit and conduit surface owing to tolerance and machining accuracy affect, mechanical presses method can not be utilized always to be in close contact, have impact on heat pipe for thermal conductivity block radiating effect directly and during electronic heating component transmission of heat by contact。
Summary of the invention
The technical problem to be solved is the defect overcoming prior art, it is provided that a kind of adopting heat pipes for heat transfer weldless connection method, can be made heat pipe and heat-conducting block close contact by the method, thus improving its radiating effect。
In order to solve above-mentioned technical problem, the technical scheme is that a kind of adopting heat pipes for heat transfer weldless connection method, the step of the method includes evaporation ends weldless connection and processes, containing following steps in the method that described evaporation ends welding processes:
(1) prepare heat-conducting block and at least one heat pipe, and at least one open slot corresponding with corresponding heat pipe (1) is set on pressurized of heat-conducting block；
(2) the evaporation ends end of described heat pipe is penetrated open slot, and after penetrating, described heat pipe has the projection protruded outside open slot；
(3) briquetting that pressurizes makes briquetting act on pressurized of heat-conducting block, and makes described projection be pressed in open slot and flatten；
(4) heating heat pipe makes the evaporation ends end expanded by heating of heat pipe, so that the end of heat pipe is in close contact and makes the face being driven plain part of heat pipe and pressurized at least one contact surface forming contact heating assembly of heat-conducting block with open slot wall。
Further, in described step (4), by a heating devices heat heat pipe, and electric heating device makes the temperature of heat pipe produce the temperature expanded to heat pipe, and detect the stress being driven plain part on heat pipe, when stress is less than yield limit, then continue opposite heat tube heating, heat up until stress stops opposite heat tube after exceeding yield limit。
Further, in described step (4), gathered the Temperature numerical of heat pipe by a temperature transducer。
Further, in described step (4), gathered the stress numerical being driven plain part on heat pipe by a strain gauge。
Further for making heat pipe and heat dissipation element close contact, thus improving its radiating effect, adopting heat pipes for heat transfer weldless connection method also includes condensation end weldless connection and processes, containing following steps in the method that described condensation end welding processes:
A () prepares the heat dissipation element with heat pipe jack, the condensation end end of heat pipe is inserted the heat pipe jack of heat dissipation element；Described heat dissipation element can be radiating fin group。
B () heating heat pipe makes the condensation end end expanded by heating of heat pipe, so that the condensation end end of heat pipe and the wall close contact of formation heat pipe jack on heat dissipation element。
Further, in described step (b), being fitted in the side of heat dissipation element before heating heat pipe by one end restraint assembly, so that heat pipe is when heating, the condensation end termination of heat pipe does not produce to expand to the bearing of trend of heat pipe jack。
Further, the step of adopting heat pipes for heat transfer weldless connection method is further comprising the steps of after evaporation ends weldless connection processes and condensation end weldless connection processes: the middle part that heat pipe does not need expanded by heating adopts binding constraint component constraint, so that heat pipe is when heating, the middle part of heat pipe does not produce to expand。
Further providing the concrete structure of a kind of binding constraint assembly, described binding constraint assembly includes matched moulds and lower matched moulds, and the middle part of described heat pipe is clamped between upper matched moulds and lower matched moulds。
Further for the middle part expanded by heating that can effectively prevent heat pipe, described binding constraint assembly is made of ceramic materials。
It is made up of little and that yield limit is bigger than the heat pipe material of modular ratio heat pipe further for the effective plastic deformation of heat pipe, described heat-conducting block and/or heat dissipation element can be made。
Further, described heat-conducting block and/or heat dissipation element are made up of aluminum alloy materials。
After have employed technique scheme, the method that the heat pipe plane that the present invention adopts open slot more slightly smaller than heat pipe maximum diameter at evaporation ends directly contacts electronic radiation assembly, but embedding grammar is the dilatancy adopting heat pipe, increase the reliable contacts with heat-conducting block metal, same at condensation end in order to strengthen and the contacting of heat dissipation element, its embedding grammar is also adopt interference fits to penetrate heat dissipation element, again the end being exposed on the external and connection heat pipe are used restraint, make it can not produce to expand, only matching part produces heat pipe dilatancy, make heat dissipation element and deformation heat pipe close contact, this makes it possible to make heat pipe and heat transfer element close contact, thus improving its radiating effect。
Accompanying drawing explanation
Fig. 1 is the axonometric chart of the adopting heat pipes for heat transfer weldless connection procedure of the present invention；
Fig. 2 is the structural representation of the adopting heat pipes for heat transfer weldless connection procedure of the present invention；
Fig. 3 is the A-A sectional view of Fig. 2；
Fig. 4 is the B-B sectional view of Fig. 2。
Detailed description of the invention
Being clearly understood to make present disclosure be easier to, below according to specific embodiment and in conjunction with accompanying drawing, the present invention is further detailed explanation。
As shown in figures 1-4, a kind of adopting heat pipes for heat transfer weldless connection method, the step of the method includes evaporation ends weldless connection and processes, containing following steps in the method that described evaporation ends welding processes:
(1) prepare heat-conducting block 1 and at least one heat pipe 2, and at least one open slot 11 corresponding with corresponding heat pipe 2 is set on pressurized of heat-conducting block 1；
(2) the evaporation ends end of described heat pipe 2 is penetrated open slot 11, and after penetrating, described heat pipe 2 has the projection protruded outside open slot 11；
(3) briquetting 3 that pressurizes makes briquetting 3 act on pressurized of heat-conducting block 1, and makes described projection be pressed in open slot 11 and flatten；Briquetting 2 can arrange pressure force-transmitting pole 31, by pressure force-transmitting pole 31 moulding pressure；
(4) heating heat pipe 2 makes the evaporation ends end expanded by heating of heat pipe 2, so that the end of heat pipe 2 is in close contact and makes the face being driven plain part of heat pipe 2 and pressurized at least one contact surface forming contact heating assembly of heat-conducting block 1 with open slot 11 wall。
As shown in Figure 1, in described step (4), heat pipe 2 is heated by a heater 4, and electric heating device 4 makes the temperature of heat pipe 2 produce the temperature expanded to heat pipe 2, and detect the stress being driven plain part on heat pipe 2, when stress is less than yield limit, then continues opposite heat tube 2 and heat, heat up until stress stops opposite heat tube 2 after exceeding yield limit。
In described step (4), gathered the Temperature numerical of heat pipe 2 by a temperature transducer。
In described step (4), gathered the stress numerical being driven plain part on heat pipe 2 by a strain gauge。
Process as it is shown in figure 1, adopting heat pipes for heat transfer weldless connection method also includes condensation end weldless connection, containing following steps in the method that described condensation end welding processes:
A () prepares the heat dissipation element 5 with heat pipe jack, the condensation end end of heat pipe 2 is inserted the heat pipe jack of heat dissipation element 5；Heat dissipation element 5 is radiating fin group。
B () heating heat pipe 2 makes the condensation end end expanded by heating of heat pipe 2, so that the condensation end end of heat pipe 2 and the wall close contact of formation heat pipe jack on heat dissipation element 5；This condensation end welding process in the heating of opposite heat tube 2 and evaporation ends welding process in the heating of opposite heat tube 2 same heater 4 can be adopted to be heated, and step (4) and step (b) carry out simultaneously。
As shown in Figure 1, in described step (b), be fitted in the side of heat dissipation element 5 before heating heat pipe 2 by one end restraint assembly 6, so that heat pipe 2 is when heating, the condensation end termination of heat pipe 2 does not produce to expand to the bearing of trend of heat pipe jack。
As shown in Figure 1, the step of adopting heat pipes for heat transfer weldless connection method is further comprising the steps of after evaporation ends weldless connection processes and condensation end weldless connection processes: the middle part that heat pipe 2 does not need expanded by heating is adopted binding constraint component constraint, so that heat pipe 2 is when heating, the middle part of heat pipe 2 does not produce to expand。
As it is shown in figure 1, described binding constraint assembly includes matched moulds 7 and lower matched moulds 8, the middle part of described heat pipe 2 is clamped between upper matched moulds 7 and lower matched moulds 8；In order to effectively prevent the middle part expanded by heating of heat pipe, described binding constraint assembly is made of ceramic materials。
Described heat-conducting block 1 and the material that heat dissipation element 5 is little by modular ratio heat pipe 2 and yield limit is bigger than heat pipe 2 are made。
Described heat-conducting block 1 and heat dissipation element 5 are made up of aluminum alloy materials。
In the present embodiment, heat-conducting block 1 for being taken out of by the heat on electronic heating component, and passes to condensation end by heat pipe 2 together with the heat pipe 2 on same contact plane；Briquetting 3 one aspect can install heater 4 and each detection sensor being arranged on heater 4, plays the effect flattening deformation heat pipe 2 on the other hand, and heat-conducting block 1 plane of the hot side heat 2 and transmission of heat by contact that are used in transmission of heat by contact is in same contact surface；Binding constraint assembly adopts upper and lower matched moulds constraint type, makes the heat pipe 2 sections that need not expand not produce to expand (the part heat pipe 2 only contacted and the part heat pipe contacted with radiating fin group need to expand) with heat-conducting block 1；
Additionally, the heat-conducting block 1 of evaporation ends and the heat dissipation element 5 of condensation end can adopt modular ratio heat pipe 2 little (namely heat-conducting block is more flexible than heat pipe 2), prepared by the aluminum alloy materials that yield limit is bigger than heat pipe 2, the heat pipe 2 when strain facies is same is so made more to be easily generated plastic deformation, in heat abstractor assembling process, open slot width ratio bore dia on heat-conducting block 1 open slot is slightly smaller, it is pine interference fits with the fit clearance of heat pipe 2 caliber, one end of heat pipe 2 is positioned in heat-conducting block 1 by penetrating mode, a briquetting 3 is placed above the open slot 11 of heat-conducting block 1。
This heat pipe can be the mode of single heat pipe, double; two heat pipe or many heat pipes。
Particular embodiments described above; to present invention solves the technical problem that, technical scheme and beneficial effect further described; it is it should be understood that; the foregoing is only specific embodiments of the invention; it is not limited to the present invention; all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention。
Claims (10)
1. an adopting heat pipes for heat transfer weldless connection method, it is characterised in that the step of the method includes evaporation ends weldless connection and processes, containing following steps in the method that described evaporation ends welding processes:
(1) prepare heat-conducting block (1) and at least one heat pipe (2), and at least one open slot (11) corresponding with corresponding heat pipe (2) is set on pressurized of heat-conducting block (1)；
(2) the evaporation ends end of described heat pipe (2) is penetrated open slot (11), and after penetrating, described heat pipe (2) has protrusion open slot (11) projection outward；
(3) briquetting (3) that pressurizes makes briquetting (3) act on pressurized of heat-conducting block (1), and makes the press-in flattening in open slot (11) of described projection；
(4) heating heat pipe (2) makes the evaporation ends end expanded by heating of heat pipe (2), so that the end of heat pipe (2) is in close contact and makes the face being driven plain part of heat pipe (2) and pressurized at least one contact surface forming contact heating assembly of heat-conducting block (1) with open slot (11) wall。
2. adopting heat pipes for heat transfer weldless connection method according to claim 1, it is characterized in that: in described step (4), heat pipe (2) is heated by a heater (4), and electric heating device (4) makes the temperature of heat pipe (2) produce the temperature expanded to heat pipe (2), and detect the stress being driven plain part on heat pipe (2), when stress is less than yield limit, then continue opposite heat tube (2) heating, heat up until stress stops opposite heat tube (2) after exceeding yield limit。
3. adopting heat pipes for heat transfer weldless connection method according to claim 2, it is characterised in that: in described step (4), gathered the Temperature numerical of heat pipe (2) by a temperature transducer。
4. adopting heat pipes for heat transfer weldless connection method according to claim 2, it is characterised in that: in described step (4), gathered the stress numerical being driven plain part on heat pipe (2) by a strain gauge。
5. adopting heat pipes for heat transfer weldless connection method according to any one of claim 1 to 4, it is characterised in that: also include condensation end weldless connection and process, containing following steps in the method that described condensation end welding processes:
A () prepares the heat dissipation element (5) with heat pipe jack, the condensation end end of heat pipe (2) is inserted the heat pipe jack of heat dissipation element (5)；
B () heating heat pipe (2) make the condensation end end expanded by heating of heat pipe (2), so that the wall close contact that form heat pipe jack upper with heat dissipation element (5) of the condensation end end of heat pipe (2)。
6. adopting heat pipes for heat transfer weldless connection method according to claim 5, it is characterized in that: in described step (b), it was fitted in the side of heat dissipation element (5) by one end restraint assembly (6) before heating heat pipe (2), so that heat pipe (2) is when heating, the condensation end termination of heat pipe (2) does not produce to expand to the bearing of trend of heat pipe jack。
7. adopting heat pipes for heat transfer weldless connection method according to claim 5, it is characterized in that the step of the method is further comprising the steps of after evaporation ends weldless connection processes and condensation end weldless connection processes: the middle part that heat pipe (2) does not need expanded by heating adopts binding constraint component constraint, so that heat pipe (2) is when heating, the middle part of heat pipe (2) does not produce to expand。
8. adopting heat pipes for heat transfer weldless connection method according to claim 7, it is characterized in that: described binding constraint assembly includes matched moulds (7) and lower matched moulds (8), and the middle part of described heat pipe (2) is clamped between upper matched moulds (7) and lower matched moulds (8)。
9. adopting heat pipes for heat transfer weldless connection method according to claim 5, it is characterised in that: described heat-conducting block (1) and/or heat dissipation element (5) are made up of little and that yield limit is bigger than heat pipe (2) material of modular ratio heat pipe (2)。
10. adopting heat pipes for heat transfer weldless connection method according to claim 9, it is characterised in that: described heat-conducting block (1) and/or heat dissipation element (5) are made up of aluminum alloy materials。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610254940.2A CN105689963A (en) | 2016-04-22 | 2016-04-22 | Heat-transfer welding-free connection method for heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610254940.2A CN105689963A (en) | 2016-04-22 | 2016-04-22 | Heat-transfer welding-free connection method for heat pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105689963A true CN105689963A (en) | 2016-06-22 |
Family
ID=56217418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610254940.2A Withdrawn CN105689963A (en) | 2016-04-22 | 2016-04-22 | Heat-transfer welding-free connection method for heat pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105689963A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270269A (en) * | 2016-06-24 | 2017-01-04 | 杨浩轩 | Adopting heat pipes for heat transfer weldless connection method |
-
2016
- 2016-04-22 CN CN201610254940.2A patent/CN105689963A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270269A (en) * | 2016-06-24 | 2017-01-04 | 杨浩轩 | Adopting heat pipes for heat transfer weldless connection method |
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| Date | Code | Title | Description |
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Application publication date: 20160622 |